fix: look for yarn pnp when looking for eslint projdir

* Fix texlab GetProjectRoot

* Fix indents in texlab#GetProjectRoot

* Prevent texlab from starting on every tex file

* Update texlab Vader tests

* Fix GetProjectRoot to return parent of .git

Previously, the function returned `../.git/`. We want the function to return the parent directory above that as the project root. This should help pass Vader tests.

.appveyor.yml

@@ -5,6 +5,11 @@ clone_depth: 10
 # Use the directory C:\testplugin so test directories will mostly work.
 clone_folder: C:\testplugin
 
+branches:
+  only:
+    - master
+    - /v\d+\.\d+\.(x|\d+)/
+
 # Cache the vim and vader directories between builds.
 cache:
   - C:\vim -> .appveyor.yml
@@ -14,6 +19,9 @@ init:
   # Stop git from changing newlines
   - git config --global core.autocrlf input
 
+# NOTE: If you change the Vim or Vader versions here, please also update the
+# instructions for running tests on Windows in ale-development.txt
+
 install:
   # Download and unpack Vim
   - ps: >-

.gitattributes

@@ -2,6 +2,7 @@
 /CODE_OF_CONDUCT.md export-ignore
 /CONTRIBUTING.md export-ignore
 /Dockerfile export-ignore
+/ISSUE_TEMPLATE export-ignore
 /ISSUE_TEMPLATE.md export-ignore
 /Makefile export-ignore
 /PULL_REQUEST_TEMPLATE.md export-ignore

.github/CONTRIBUTING.md

@@ -0,0 +1,25 @@
+## Guidelines
+
+Have fun, and work on whatever floats your boat. Take It Easy :tm:.
+
+For help with contributing to ALE, see `:help ale-development` in Vim, or view
+the help file online [here](/doc/ale-development.txt).
+
+## Creating Issues
+
+Before creating any issues, please look through the current list of issues and
+pull requests, and ensure that the issue hasn't already been reported. If an
+issue has already been reported, but you have some new insight, please add
+a comment to the existing issue.
+
+Please read the FAQ in the README before creating any issues. A feature
+you desire may already exist and be documented, or the FAQ might explain
+how to solve a problem you have already.
+
+Please try and describe any issues reported with as much detail as you can
+provide about your Vim version, the linter you were trying to run, your
+operating system, or any other information you think might be helpful.
+
+Please describe your issue in clear, grammatically correct, and easy to
+understand English. You are more likely to see an issue resolved if others
+can understand you.

.github/ISSUE_TEMPLATE/report-a-bug.md

@@ -0,0 +1,46 @@
+---
+name: Report a bug
+labels: bug
+about: Report a bug with ALE.
+
+---
+
+<!--
+  This is the template for reporting ALE bugs. Make sure you try updating ALE
+  to a more recent version before reporting a bug. Look through existing bug
+  reports for similar issues before reporting a new one. Don't leave comments
+  about new bugs in the comment section for old issues.
+
+  Make sure to try disabling other plugins and trying to repeat your bug before
+  reporting it in ALE. Some times problems can arise when two plugins are used
+  together, but often your issues might be problems with other plugins.
+-->
+
+## Information
+
+**VIM version**
+
+<!-- Paste just the first two lines of :version here. -->
+
+Operating System: <!-- Describe your operating system version. -->
+
+## What went wrong
+
+<!-- Describe what went wrong here. Be specific. -->
+
+Something went wrong in specifically this place, and I also searched through both open and closed issues for the same problem before reporting a bug here.
+
+Are you having trouble configuring ALE? Try asking for help on [Stack Exchange](https://vi.stackexchange.com/) or perhaps on [Reddit](https://www.reddit.com/r/vim/) instead. The GitHub issue tracker should be used for reporting bugs or asking for new features.
+
+## Reproducing the bug
+
+<!-- Write a list of steps below. -->
+
+1. I did this.
+2. Then this happened.
+
+### :ALEInfo
+
+<!-- Paste the output of :ALEInfo here. Try :ALEInfoToClipboard -->
+<!-- Make sure to run :ALEInfo from the buffer where the bug occurred. -->
+<!-- Read the output. You might figure out what went wrong yourself. -->

.github/ISSUE_TEMPLATE/suggest-a-new-linter-or-fixer.md

@@ -0,0 +1,21 @@
+---
+name: Suggest a new linter or fixer
+labels: new tool
+about: Suggest a new tool ALE can officially integrate with.
+
+---
+
+<!--
+  Write "Add support for foobar" as the issue title, or similar.
+
+  Fill out the details below.
+-->
+
+**Name:** foobar
+**URL:** https://foo.bar.com
+
+<!--
+  Write a description of the tool, and add any other information you think might
+  be helpful. Consider creating a pull request to add support for the tool
+  yourself.
+-->

.github/ISSUE_TEMPLATE/suggest-an-improvement.md

@@ -0,0 +1,8 @@
+---
+name: Suggest an improvement
+labels: enhancement
+about: Suggest some way to improve ALE, or add a new feature.
+
+---
+
+<!-- There's no fixed format for feature requests. Just add your thoughts. -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,13 @@
+<!--
+Before creating a pull request, do the following.
+
+* Read the Contributing guide linked above first.
+* Read the documentation that comes with ALE with `:help ale-dev`.
+
+Have fun!
+-->
+
+Where are the tests? Have you added tests? Have you updated the tests? Read the
+comment above and the documentation referenced in it first. Write tests!
+
+Seriously, read `:help ale-dev` and write tests.

.github/stale.yml

@@ -0,0 +1,17 @@
+---
+# This configuration closes stale PRs after 28 + 7 days.
+# That's 4 weeks until stale bot complains, and a week until it closes a PR.
+# Issues in ALE are never, ever stale. They are either resolved or not.
+only: pulls
+daysUntilStale: 28
+daysUntilClose: 7
+exemptLabels: []
+staleLabel: stale
+markComment: >
+  This pull request has been automatically marked as stale because it has not
+  been updated recently. Make sure to write tests and document your changes.
+  See `:help ale-dev` for information on writing tests.
+
+  If your pull request is good to merge, bother w0rp or another maintainer
+  again, and get them to merge it.
+closeComment: false

.github/workflows/main.yml

@@ -0,0 +1,36 @@
+---
+name: CI
+on:  # yamllint disable-line rule:truthy
+  push:
+    branches: [ master ]  # yamllint disable-line rule:brackets
+    tags:
+      - /^v\d+\.\d+\.(x|\d+)$/
+  pull_request:
+    branches: [ master ]  # yamllint disable-line rule:brackets
+
+jobs:
+  build_image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build docker run image
+        shell: bash
+        env:
+          DOCKER_HUB_USER: ${{ secrets.DOCKER_HUB_USER }}
+          DOCKER_HUB_PASS: ${{ secrets.DOCKER_HUB_PASS }}
+        run: ./run-tests --build-image
+  test_ale:
+    needs: build_image
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        vim-version:
+          - '--vim-80-only'
+          - '--vim-82-only'
+          - '--neovim-02-only'
+          - '--neovim-04-only'
+          - '--linters-only'
+    steps:
+      - uses: actions/checkout@v2
+      - name: Run tests
+        run: ./run-tests -v ${{ matrix.vim-version }}

.gitignore

@@ -1,7 +1,12 @@
 !.editorconfig
 *.obj
+*.pyc
+# Ignore all hidden files everywhere.
+# Use `git add -f` to add hidden files.
 .*
 /doc/tags
 /init.vim
 /test/ale-info-test-file
+/vader_output
+__pycache__
 tags

.travis.yml

@@ -1,7 +0,0 @@
----
-sudo: required
-services:
-    - docker
-language: python
-script: |
-    ./run-tests

CONTRIBUTING.md

@@ -1,173 +0,0 @@
-# Contributing to ALE
-
-1. [Guidelines](#guidelines)
-2. [Creating Issues](#issues)
-3. [Creating Pull Requests](#pull-requests)
-    1. [Adding a New Linter](#adding-a-new-linter)
-    2. [Adding New Options](#adding-new-options)
-4. [Writing Documentation](#writing-documentation)
-    1. [Documenting New Linters](#documenting-new-linters)
-    2. [Editing the Online Documentation](#editing-online-documentation)
-    3. [Documenting Linter Options](#documenting-linter-options)
-5. [In Case of Busses](#in-case-of-busses)
-
-<a name="guidelines"></a>
-
-## 1. Guidelines
-
-Have fun, and work on whatever floats your boat. Take It Easy :tm:.
-
-Don't forget to **write documentation** for whatever it is you are doing.
-See the ["Writing Documentation"](#writing-documentation) section.
-
-Remember to write Vader tests for most of the code you write. You can look at
-existing Vader tests in the `test` directory for examples.
-
-When writing code, follow the [Google Vimscript Style
-Guide](https://google.github.io/styleguide/vimscriptguide.xml), and run `vint
--s` on your files to check for most of what the guide mentions and more. If you
-install this plugin (ALE) and install [Vint](https://github.com/Kuniwak/vint), it
-will check your code while you type.
-
-<a name="issues"></a>
-
-## 2. Creating Issues
-
-Before creating any issues, please look through the current list of issues and
-pull requests, and ensure that the issue hasn't already been reported. If an
-issue has already been reported, but you have some new insight, please add
-a comment to the existing issue.
-
-Please read the FAQ in the README before creating any issues. A feature
-you desire may already exist and be documented, or the FAQ might explain
-how to solve a problem you have already.
-
-Please try and describe any issues reported with as much detail as you can
-provide about your Vim version, the linter you were trying to run, your
-operating system, or any other information you think might be helpful.
-
-Please describe your issue in clear, grammatically correct, and easy to
-understand English. You are more likely to see an issue resolved if others
-can understand you.
-
-<a name="pull-requests"></a>
-
-## 3. Creating Pull Requests
-
-For code you write, make sure to credit yourself at the top of files you add,
-and probably those you modify. You can write some comments at the top of your
-VIM files.
-
-```vim
-" Author: John Smith <john.smith@gmail.com>
-" Description: This file adds support for awesomelinter for the best language ever.
-```
-
-If you want to credit multiple authors, you can comma separate them.
-
-```vim
-" Author: John Smith <john.smith@gmail.com>, Jane Doe <https://jane-doe.info>
-```
-
-<a name="adding-a-new-linter"></a>
-
-### 3.i. Adding a New Linter
-
-If you add a new linter, look for existing handlers first in the
-[handlers](autoload/ale/handlers) directory. One of the handlers there may
-already be able to handle your lines of output. If you find that your new
-linter replicates an existing error handler, consider pulling it up into the
-[handlers](autoload/ale/handlers) directory, and use the generic handler in
-both places.
-
-When you add a linter, make sure the language for the linter and the linter
-itself are present in the table in the [README.md](README.md) file and in the
-Vim [help file](doc/ale.txt). The programs and linters should be sorted
-alphabetically in the table and list.
-
-<a name="adding-new-options"></a>
-
-### 3.ii. Adding New Options
-
-If you add new options to the plugin, make sure to document those new options
-in the [README.md](README.md) file, and also in the [help file](doc/ale.txt).
-Follow the format of other options in each. Global options should appear in the
-README file, and in the relevant section in the help file. Options specific
-to a particular linter should appear in the section for that linter.
-
-Linter options for customizing general argument lists should be named
-`g:ale_<filetype>_<linter>_options`, so that all linters can have similar
-global variable names.
-
-Any options for linters should be set to some default value so it is always
-easy to see what the default is with `:echo g:ale...`.
-
-<a name="writing-documentation"></a>
-
-## 4. Writing Documentation
-
-If you are adding new linters, changing the API, adding new options, etc., you
-_must_ write some documentation describing it in the `doc/ale.txt` file.  New
-linters _must_ be added to the `README.md` file too, so other users can get a
-quick overview of the supported tools.
-
-<a name="documenting-new-linters"></a>
-
-### 4.i Documenting New Linters
-
-If you add a new linter to the project, edit the table in the `README.md` file,
-and edit the list of linters at the top of the `doc/ale.txt` file. The linters
-should be sorted vertically in lexicographic (alphabetical) order by the
-programming language name or filetype, and the tools for each language should
-be sorted in lexicographic order horizontally. Sorting in this manner is a fair
-manner of presenting all of the information in an easy to scan way, without
-giving some unfair preference to any particular tool or language.
-
-<a name="editing-online-documentation"></a>
-
-### 4.ii Editing the Online Documentation
-
-The "online documentation" file used for this project lives in `doc/ale.txt`.
-This is the file used for generating `:help` text inside Vim itself. There are
-some guidelines to follow for this file.
-
-1. Keep all text within a column size of 79 characters, inclusive.
-2. Open a section with 79 `=` or `-` characters, for headings and subheadings.
-3. Sections should have a _single_ blank line before or after.
-4. Between descriptions of variables/functions/commands, use _two_ blank lines.
-5. Up-indent the description of a variable/function/command by two spaces.
-6. Place tags at the ends of lines, with the final characters on column 79.
-   All of the tags should line up perfectly on the same column as you scan
-   down through the document.
-7. Keep the table of contents balanced so the longest tag link ends on column
-   79, and so all links line up perfectly on their first character, on the
-   left.
-
-<a name="documenting-linter-options"></a>
-
-### 4.iii Documenting Linter Options
-
-For documenting new linter options, please add a new sub-section under the
-"Linter Specific Options" section describing all of the global options added
-for each linter, and what the default values of the options are. All global
-options for linters should be set to some default value. This will allow users
-to look up the default value easily by typing `:echo g:ale_...`.
-
-<a name="in-case-of-busses"></a>
-
-## 5. In Case of Busses
-
-Should the principal author of the ALE project and all collaborators with the
-required access needed to properly administrate the project on GitHub or any
-other website either perish or disappear, whether by tragic traffic accident
-or government abduction, etc., action should be taken to ensure that the
-project continues. If no one is left to administer the project where it is
-hosted, please fork the project and nominate someone capable to administer it.
-Preferably, in such an event, a single fork of the project will replace the
-original, and life will go on, except the life of whoever vanished, because
-then they will probably be dead.
-
-Should w0rp suddenly disappear, then he was probably killed in a traffic
-accident, or the government finally decided to kill him and make it look like
-suicide. In the latter event, please subvert said government and restore
-order to the universe, and ensure peace for mankind.

Dockerfile

@@ -1,18 +1,26 @@
 FROM tweekmonster/vim-testbed:latest
 
 RUN install_vim -tag v8.0.0027 -build \
-                -tag neovim:v0.1.7 -build
+                -tag v8.2.2401 -build \
+                -tag neovim:v0.2.0 -build \
+                -tag neovim:v0.4.4 -build
 
 ENV PACKAGES="\
     bash \
     git \
     python \
     py-pip \
+    grep \
+    sed \
 "
 RUN apk --update add $PACKAGES && \
     rm -rf /var/cache/apk/* /tmp/* /var/tmp/*
 
-RUN pip install vim-vint==0.3.9
+RUN pip install vim-vint==0.3.15
 
 RUN git clone https://github.com/junegunn/vader.vim vader && \
     cd vader && git checkout c6243dd81c98350df4dec608fa972df98fa2a3af
+
+ARG GIT_VERSION
+LABEL Version=${GIT_VERSION}
+LABEL Name=w0rp/ale

ISSUE_TEMPLATE.md

@@ -1,28 +0,0 @@
-<!--
-    This is a template for bug reports. If you want to request a new feature,
-    you can clear this entire form field and write a short description of what
-    you want.
--->
-
-## Information
-
-**VIM version**
-
-PASTE JUST THE FIRST TWO LINES OF `:version` HERE.
-
-Operating System: WHAT OS WERE YOU USING?
-
-### :ALEInfo
-
-PASTE OUTPUT OF `:ALEInfo` HERE. YOU CAN TRY `:ALEInfoToClipboard`.
-
-## What went wrong
-
-WRITE WHAT WENT WRONG HERE.
-
-## Reproducing the bug
-
-Steps for repeating the bug:
-
-1. Write a list of steps.
-2. Otherwise nobody will fix the bug.

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2016-2018, w0rp <devw0rp@gmail.com>
+Copyright (c) 2016-2020, w0rp <devw0rp@gmail.com>
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

PULL_REQUEST_TEMPLATE.md

@@ -1,22 +0,0 @@
-<!--
-READ THIS: Before creating a pull request, please consider the following first.
-
-* The most important thing you can do is write tests. Code without tests
-  probably doesn't work, and will almost certainly stop working later on. Pull
-  requests without tests probably won't be accepted, although there are some
-  exceptions.
-* Read the Contributing guide linked above first.
-* If you are adding a new linter, remember to update the README.md file and
-  doc/ale.txt first.
-* If you add or modify a function for converting error lines into loclist items
-  that ALE can work with, please add Vader tests for them. Look at existing
-  tests in the test/handler directory, etc.
-* If you add or modify a function for computing a command line string for
-  running a command, please add Vader tests for that. Look at existing
-  tests in the test/command_callback directory, etc.
-* Generally try and cover anything with Vader tests, although some things just
-  can't be tested with Vader, or at least they can be hard to test. Consider
-  breaking up your code so that some parts can be tested, and generally open up
-  a discussion about it.
-* Have fun!
--->

README.md

@@ -1,12 +1,13 @@
-# Asynchronous Lint Engine [![Travis CI Build Status](https://travis-ci.org/w0rp/ale.svg?branch=master)](https://travis-ci.org/w0rp/ale) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/r0ef1xu8xjmik58d/branch/master?svg=true)](https://ci.appveyor.com/project/w0rp/ale)
+# Asynchronous Lint Engine [![GitHub Build Status](https://github.com/dense-analysis/ale/workflows/CI/badge.svg)](https://github.com/dense-analysis/ale/actions?query=event%3Apush+workflow%3ACI+branch%3Amaster++) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/r0ef1xu8xjmik58d/branch/master?svg=true)](https://ci.appveyor.com/project/dense-analysis/ale) [![Join the chat at https://gitter.im/vim-ale/Lobby](https://badges.gitter.im/vim-ale/Lobby.svg)](https://gitter.im/vim-ale/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 
-![ALE Logo by Mark Grealish - https://www.bhalash.com/](img/logo.jpg?raw=true)
+![ALE Logo by Mark Grealish - https://www.bhalash.com/](https://user-images.githubusercontent.com/3518142/59195920-2c339500-8b85-11e9-9c22-f6b7f69637b8.jpg)
 
-ALE (Asynchronous Lint Engine) is a plugin for providing linting in NeoVim
-0.2.0+ and Vim 8 while you edit your text files.
+ALE (Asynchronous Lint Engine) is a plugin providing linting (syntax checking
+and semantic errors) in NeoVim 0.2.0+ and Vim 8 while you edit your text files,
+and acts as a Vim [Language Server Protocol](https://langserver.org/) client.
 
-![linting example](img/example.gif?raw=true)
+<img src="https://user-images.githubusercontent.com/3518142/59195938-3a81b100-8b85-11e9-8e8d-6a601b1db908.gif" alt="A linting example with the darkspectrum color scheme in GVim." title="A linting example with the darkspectrum color scheme in GVim.">
 
 ALE makes use of NeoVim and Vim 8 job control functions and timers to
 run linters on the contents of text buffers and return errors as
@@ -25,9 +26,21 @@ features, including:
 
 * Diagnostics (via Language Server Protocol linters)
 * Go To Definition (`:ALEGoToDefinition`)
-* Completion (`let g:ale_completion_enabled = 1`)
+* Completion (Built in completion support, or with Deoplete)
 * Finding references (`:ALEFindReferences`)
 * Hover information (`:ALEHover`)
+* Symbol search (`:ALESymbolSearch`)
+
+If you don't care about Language Server Protocol, ALE won't load any of the code
+for working with it unless needed. One of ALE's general missions is that you
+won't pay for the features that you don't use.
+
+**Help Wanted:** If you would like to help maintain this plugin by managing the
+many issues and pull requests that are submitted, please send the author an
+email at [dev@w0rp.com](mailto:dev@w0rp.com?subject=Helping%20with%20ALE).
+
+If you enjoy this plugin, feel free to contribute or check out the author's
+other content at [w0rp.com](https://w0rp.com).
 
 ## Table of Contents
 
@@ -39,151 +52,44 @@ features, including:
     4. [Go To Definition](#usage-go-to-definition)
     5. [Find References](#usage-find-references)
     6. [Hovering](#usage-hover)
+    7. [Symbol Search](#usage-symbol-search)
+    8. [Refactoring: Rename, Actions](#usage-refactoring)
 3. [Installation](#installation)
     1. [Installation with Vim package management](#standard-installation)
     2. [Installation with Pathogen](#installation-with-pathogen)
     3. [Installation with Vundle](#installation-with-vundle)
+    4. [Installation with Vim-Plug](#installation-with-vim-plug)
 4. [Contributing](#contributing)
 5. [FAQ](#faq)
     1. [How do I disable particular linters?](#faq-disable-linters)
-    2. [How can I keep the sign gutter open?](#faq-keep-signs)
-    3. [How can I change the signs ALE uses?](#faq-change-signs)
-    4. [How can I change or disable the highlights ALE uses?](#faq-change-highlights)
-    5. [How can I show errors or warnings in my statusline?](#faq-statusline)
-    6. [How can I show errors or warnings in my lightline?](#faq-lightline)
-    7. [How can I change the format for echo messages?](#faq-echo-format)
-    8. [How can I execute some code when ALE starts or stops linting?](#faq-autocmd)
-    9. [How can I navigate between errors quickly?](#faq-navigation)
-    10. [How can I run linters only when I save files?](#faq-lint-on-save)
-    11. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
-    12. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
-    13. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
-    14. [How can I configure my C or C++ project?](#faq-c-configuration)
-    15. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
-    16. [How can I configure the height of the list in which ALE displays errors?](#faq-list-window-height)
+    2. [How can I see what ALE has configured for the current file?](#faq-get-info)
+    3. [How can I use ALE and coc.nvim together?](#faq-coc-nvim)
+    4. [How can I keep the sign gutter open?](#faq-keep-signs)
+    5. [How can I change the signs ALE uses?](#faq-change-signs)
+    6. [How can I change or disable the highlights ALE uses?](#faq-change-highlights)
+    7. [How can I show errors or warnings in my statusline?](#faq-statusline)
+    8. [How can I show errors or warnings in my lightline?](#faq-lightline)
+    9. [How can I change the format for echo messages?](#faq-echo-format)
+    10. [How can I execute some code when ALE starts or stops linting?](#faq-autocmd)
+    11. [How can I navigate between errors quickly?](#faq-navigation)
+    12. [How can I run linters only when I save files?](#faq-lint-on-save)
+    13. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
+    14. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
+    15. [How can I check Vue files with ESLint?](#faq-vue-eslint)
+    16. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
+    17. [How can I configure my C or C++ project?](#faq-c-configuration)
+    18. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
+    19. [How can I configure the height of the list in which ALE displays errors?](#faq-list-window-height)
+    20. [How can I run linters or fixers via Docker or a VM?](#faq-vm)
+    21. [How can I change the borders for floating preview windows?](#faq-window-borders)
 
 <a name="supported-languages"></a>
 
 ## 1. Supported Languages and Tools
 
-This plugin supports the following languages and tools. All available
-tools will be run in combination, so they can be complementary.
-
-<!--
-Keep the table rows sorted alphabetically by the language name,
-and the tools in the tools column sorted alphabetically by the tool
-name. That seems to be the fairest way to arrange this table.
-
-Remember to also update doc/ale.txt, which has a similar list with different
-formatting.
--->
-
-**Notes:**
-
-* *^ No linters for text or Vim help filetypes are enabled by default.*
-* *!! These linters check only files on disk. See `:help ale-lint-file-linters`*
-
-| Language | Tools |
-| -------- | ----- |
-| ASM | [gcc](https://gcc.gnu.org) |
-| Ansible | [ansible-lint](https://github.com/willthames/ansible-lint) |
-| API Blueprint | [drafter](https://github.com/apiaryio/drafter) |
-| AsciiDoc | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [write-good](https://github.com/btford/write-good) |
-| Awk | [gawk](https://www.gnu.org/software/gawk/)|
-| Bash | shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
-| Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
-| C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [clang](http://clang.llvm.org/), [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/) |
-| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) !!, [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/) |
-| CUDA | [nvcc](http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html) |
-| C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) see:`help ale-cs-mcs` for details, [mcsc](http://www.mono-project.com/docs/about-mono/languages/csharp/) !! see:`help ale-cs-mcsc` for details and configuration|
-| Chef | [foodcritic](http://www.foodcritic.io/) |
-| Clojure | [joker](https://github.com/candid82/joker) |
-| CMake | [cmakelint](https://github.com/richq/cmake-lint) |
-| CoffeeScript | [coffee](http://coffeescript.org/), [coffeelint](https://www.npmjs.com/package/coffeelint) |
-| Crystal | [crystal](https://crystal-lang.org/) !! |
-| CSS | [csslint](http://csslint.net/), [prettier](https://github.com/prettier/prettier), [stylelint](https://github.com/stylelint/stylelint) |
-| Cucumber | [cucumber](https://cucumber.io/) |
-| Cython (pyrex filetype) | [cython](http://cython.org/) |
-| D | [dmd](https://dlang.org/dmd-linux.html) |
-| Dafny | [dafny](https://rise4fun.com/Dafny) !! |
-| Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) !!, [language_server](https://github.com/natebosch/dart_language_server) |
-| Dockerfile | [hadolint](https://github.com/hadolint/hadolint) |
-| Elixir | [credo](https://github.com/rrrene/credo), [dialyxir](https://github.com/jeremyjh/dialyxir), [dogma](https://github.com/lpil/dogma) !!|
-| Elm | [elm-format](https://github.com/avh4/elm-format), [elm-make](https://github.com/elm-lang/elm-make) |
-| Erb | [erb](https://apidock.com/ruby/ERB), [erubi](https://github.com/jeremyevans/erubi), [erubis](https://github.com/kwatch/erubis) |
-| Erlang | [erlc](http://erlang.org/doc/man/erlc.html), [SyntaxErl](https://github.com/ten0s/syntaxerl) |
-| Fish | fish [-n flag](https://linux.die.net/man/1/fish)
-| Fortran | [gcc](https://gcc.gnu.org/) |
-| Fountain | [proselint](http://proselint.com/) |
-| FusionScript | [fusion-lint](https://github.com/RyanSquared/fusionscript) |
-| Git Commit Messages | [gitlint](https://github.com/jorisroovers/gitlint) |
-| GLSL | [glslang](https://github.com/KhronosGroup/glslang), [glslls](https://github.com/svenstaro/glsl-language-server) |
-| Go | [gofmt](https://golang.org/cmd/gofmt/), [goimports](https://godoc.org/golang.org/x/tools/cmd/goimports), [go vet](https://golang.org/cmd/vet/) !!, [golint](https://godoc.org/github.com/golang/lint), [gotype](https://godoc.org/golang.org/x/tools/cmd/gotype) !!, [gometalinter](https://github.com/alecthomas/gometalinter) !!, [go build](https://golang.org/cmd/go/) !!, [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple) !!, [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) !! |
-| GraphQL | [eslint](http://eslint.org/), [gqlint](https://github.com/happylinks/gqlint), [prettier](https://github.com/prettier/prettier) |
-| Haml | [haml-lint](https://github.com/brigade/haml-lint) |
-| Handlebars | [ember-template-lint](https://github.com/rwjblue/ember-template-lint) |
-| Haskell | [brittany](https://github.com/lspitzner/brittany), [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/) !!, [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools), [hfmt](https://github.com/danstiner/hfmt) |
-| HTML | [alex](https://github.com/wooorm/alex) !!, [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/), [write-good](https://github.com/btford/write-good) |
-| Idris | [idris](http://www.idris-lang.org/) |
-| Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html), [google-java-format](https://github.com/google/google-java-format), [PMD](https://pmd.github.io/) |
-| JavaScript | [eslint](http://eslint.org/), [flow](https://flowtype.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [prettier](https://github.com/prettier/prettier), [prettier-eslint](https://github.com/prettier/prettier-eslint-cli), [prettier-standard](https://github.com/sheerun/prettier-standard), [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
-| JSON | [fixjson](https://github.com/rhysd/fixjson), [jsonlint](http://zaa.ch/jsonlint/), [jq](https://stedolan.github.io/jq/), [prettier](https://github.com/prettier/prettier) |
-| Kotlin | [kotlinc](https://kotlinlang.org) !!, [ktlint](https://ktlint.github.io) !! see `:help ale-integration-kotlin` for configuration instructions |
-| LaTeX | [alex](https://github.com/wooorm/alex) !!, [chktex](http://www.nongnu.org/chktex/), [lacheck](https://www.ctan.org/pkg/lacheck), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
-| Less | [lessc](https://www.npmjs.com/package/less), [prettier](https://github.com/prettier/prettier), [stylelint](https://github.com/stylelint/stylelint) |
-| LLVM | [llc](https://llvm.org/docs/CommandGuide/llc.html) |
-| Lua | [luac](https://www.lua.org/manual/5.1/luac.html), [luacheck](https://github.com/mpeterv/luacheck) |
-| Mail | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
-| Make | [checkmake](https://github.com/mrtazz/checkmake) |
-| Markdown | [alex](https://github.com/wooorm/alex) !!, [markdownlint](https://github.com/DavidAnson/markdownlint) !!, [mdl](https://github.com/mivok/markdownlint), [prettier](https://github.com/prettier/prettier), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [remark-lint](https://github.com/wooorm/remark-lint) !!, [textlint](https://textlint.github.io/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
-| MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
-| Mercury | [mmc](http://mercurylang.org) !! |
-| NASM | [nasm](https://www.nasm.us/) !! |
-| Nim | [nim check](https://nim-lang.org/docs/nimc.html) !! |
-| nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
-| nroff | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good)|
-| Objective-C | [clang](http://clang.llvm.org/) |
-| Objective-C++ | [clang](http://clang.llvm.org/) |
-| OCaml | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-ocaml-merlin` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server) |
-| Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic), [perltidy](https://metacpan.org/pod/distribution/Perl-Tidy/bin/perltidy) |
-| PHP | [hack](http://hacklang.org/), [hackfmt](https://github.com/facebook/flow/tree/master/hack/hackfmt), [langserver](https://github.com/felixfbecker/php-language-server), [phan](https://github.com/phan/phan) see `:help ale-php-phan` to instructions, [php -l](https://secure.php.net/), [phpcs](https://github.com/squizlabs/PHP_CodeSniffer), [phpmd](https://phpmd.org), [phpstan](https://github.com/phpstan/phpstan), [phpcbf](https://github.com/squizlabs/PHP_CodeSniffer), [php-cs-fixer](http://cs.sensiolabs.org/) |
-| PO | [alex](https://github.com/wooorm/alex) !!, [msgfmt](https://www.gnu.org/software/gettext/manual/html_node/msgfmt-Invocation.html), [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
-| Pod | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
-| Pony | [ponyc](https://github.com/ponylang/ponyc) |
-| proto | [protoc-gen-lint](https://github.com/ckaznocha/protoc-gen-lint) |
-| Pug | [pug-lint](https://github.com/pugjs/pug-lint) |
-| Puppet | [puppet](https://puppet.com), [puppet-lint](https://puppet-lint.com) |
-| Python | [autopep8](https://github.com/hhatto/autopep8), [black](https://github.com/ambv/black), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [prospector](http://github.com/landscapeio/prospector), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pyls](https://github.com/palantir/python-language-server), [pylint](https://www.pylint.org/) !!, [yapf](https://github.com/google/yapf) |
-| QML | [qmlfmt](https://github.com/jesperhh/qmlfmt), [qmllint](https://github.com/qt/qtdeclarative/tree/5.11/tools/qmllint) |
-| R | [lintr](https://github.com/jimhester/lintr) |
-| ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-reasonml-ols` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server), [refmt](https://github.com/reasonml/reason-cli) |
-| reStructuredText | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [rstcheck](https://github.com/myint/rstcheck), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
-| Re:VIEW | [redpen](http://redpen.cc/) |
-| RPM spec | [rpmlint](https://github.com/rpm-software-management/rpmlint) (disabled by default; see `:help ale-integration-spec`) |
-| Ruby | [brakeman](http://brakemanscanner.org/) !!, [rails_best_practices](https://github.com/flyerhzm/rails_best_practices) !!, [reek](https://github.com/troessner/reek), [rubocop](https://github.com/bbatsov/rubocop), [ruby](https://www.ruby-lang.org), [rufo](https://github.com/ruby-formatter/rufo) |
-| Rust |  cargo !! (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/), [rustfmt](https://github.com/rust-lang-nursery/rustfmt) |
-| SASS | [sass-lint](https://www.npmjs.com/package/sass-lint), [stylelint](https://github.com/stylelint/stylelint) |
-| SCSS | [prettier](https://github.com/prettier/prettier), [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint) |
-| Scala | [fsc](https://www.scala-lang.org/old/sites/default/files/linuxsoft_archives/docu/files/tools/fsc.html), [scalac](http://scala-lang.org), [scalastyle](http://www.scalastyle.org) |
-| Slim | [slim-lint](https://github.com/sds/slim-lint) |
-| SML | [smlnj](http://www.smlnj.org/) |
-| Solidity | [solhint](https://github.com/protofire/solhint), [solium](https://github.com/duaraghav8/Solium) |
-| Stylus | [stylelint](https://github.com/stylelint/stylelint) |
-| SQL | [sqlint](https://github.com/purcell/sqlint) |
-| Swift | [swiftlint](https://github.com/realm/SwiftLint), [swiftformat](https://github.com/nicklockwood/SwiftFormat) |
-| Tcl | [nagelfar](http://nagelfar.sourceforge.net) !! |
-| Terraform | [tflint](https://github.com/wata727/tflint) |
-| Texinfo | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good)|
-| Text^ | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [textlint](https://textlint.github.io/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
-| Thrift | [thrift](http://thrift.apache.org/) |
-| TypeScript | [eslint](http://eslint.org/), [prettier](https://github.com/prettier/prettier), [tslint](https://github.com/palantir/tslint), tsserver, typecheck |
-| Verilog | [iverilog](https://github.com/steveicarus/iverilog), [verilator](http://www.veripool.org/projects/verilator/wiki/Intro) |
-| Vim | [vint](https://github.com/Kuniwak/vint) |
-| Vim help^ | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
-| Vue | [prettier](https://github.com/prettier/prettier) |
-| XHTML | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
-| XML | [xmllint](http://xmlsoft.org/xmllint.html) |
-| YAML | [swaglint](https://github.com/byCedric/swaglint), [yamllint](https://yamllint.readthedocs.io/) |
+ALE supports a wide variety of languages and tools. See the
+[full list](supported-tools.md) in the
+[Supported Languages and Tools](supported-tools.md) page.
 
 <a name="usage"></a>
 
@@ -200,10 +106,10 @@ programs for checking the syntax and semantics of your programs. By default,
 linters will be re-run in the background to check your syntax when you open
 new buffers or as you make edits to your files.
 
-The behaviour of linting can be configured with a variety of options,
+The behavior of linting can be configured with a variety of options,
 documented in [the Vim help file](doc/ale.txt). For more information on the
 options ALE offers, consult `:help ale-options` for global options and `:help
-ale-linter-options` for options specified to particular linters.
+ale-integration-options` for options specified to particular linters.
 
 <a name="usage-fixing"></a>
 
@@ -223,12 +129,18 @@ let b:ale_fixers = ['prettier', 'eslint']
 let b:ale_fixers = {'javascript': ['prettier', 'eslint']}
 ```
 
-You can also configure your fixers from vimrc using `g:ale_fixers`, before
-or after ALE has been loaded.
+You can also configure your fixers from vimrc using `g:ale_fixers`, before or
+after ALE has been loaded.
+
+A `*` in place of the filetype will apply a List of fixers to all files which
+do not match some filetype in the Dictionary.
+
+Note that using a plain List for `g:ale_fixers` is not supported.
 
 ```vim
 " In ~/.vim/vimrc, or somewhere similar.
 let g:ale_fixers = {
+\   '*': ['remove_trailing_lines', 'trim_whitespace'],
 \   'javascript': ['eslint'],
 \}
 ```
@@ -253,13 +165,45 @@ See `:help ale-fix` for complete information on how to fix files with ALE.
 
 ALE offers some support for completion via hijacking of omnicompletion while you
 type. All of ALE's completion information must come from Language Server
-Protocol linters, or from `tsserver` for TypeSript.
+Protocol linters, or from `tsserver` for TypeScript.
+
+ALE integrates with [Deoplete](https://github.com/Shougo/deoplete.nvim) as a
+completion source, named `'ale'`. You can configure Deoplete to only use ALE as
+the source of completion information, or mix it with other sources.
+
+```vim
+" Use ALE and also some plugin 'foobar' as completion sources for all code.
+call deoplete#custom#option('sources', {
+\ '_': ['ale', 'foobar'],
+\})
+```
+
+ALE also offers its own automatic completion support, which does not require any
+other plugins, and can be enabled by changing a setting before ALE is loaded.
 
 ```vim
 " Enable completion where available.
+" This setting must be set before ALE is loaded.
+"
+" You should not turn this setting on if you wish to use ALE as a completion
+" source for other completion plugins, like Deoplete.
 let g:ale_completion_enabled = 1
 ```
 
+ALE provides an omni-completion function you can use for triggering
+completion manually with `<C-x><C-o>`.
+
+```vim
+set omnifunc=ale#completion#OmniFunc
+```
+
+ALE supports automatic imports from external modules. This behavior is disabled
+by default and can be enabled by setting:
+
+```vim
+let g:ale_completion_autoimport = 1
+```
+
 See `:help ale-completion` for more information.
 
 <a name="usage-go-to-definition"></a>
@@ -290,11 +234,39 @@ ALE supports "hover" information for printing brief information about symbols at
 the cursor taken from Language Server Protocol linters and `tsserver` with the
 `ALEHover` command.
 
-On vim/gvim with `balloon` support you can see the information in a tooltip
-that appears under the mouse when you mouseover a symbol.
+Truncated information will be displayed when the cursor rests on a symbol by
+default, as long as there are no problems on the same line.
+
+The information can be displayed in a `balloon` tooltip in Vim or GVim by
+hovering your mouse over symbols. Mouse hovering is enabled by default in GVim,
+and needs to be configured for Vim 8.1+ in terminals.
 
 See `:help ale-hover` for more information.
 
+<a name="usage-symbol-search"></a>
+
+### 2.vii Symbol Search
+
+ALE supports searching for workspace symbols via Language Server Protocol
+linters with the `ALESymbolSearch` command.
+
+Search queries can be performed to find functions, types, and more which are
+similar to a given query string.
+
+See `:help ale-symbol-search` for more information.
+
+<a name="usage-refactoring"></a>
+
+### 2.viii Refactoring: Rename, Actions
+
+ALE supports renaming symbols in symbols in code such as variables or class
+names with the `ALERename` command.
+
+`ALECodeAction` will execute actions on the cursor or applied to a visual
+range selection, such as automatically fixing errors.
+
+See `:help ale-refactor` for more information.
+
 <a name="installation"></a>
 
 ## 3. Installation
@@ -316,14 +288,14 @@ any other tools. Simply clone the plugin into your `pack` directory.
 
 ```bash
 mkdir -p ~/.vim/pack/git-plugins/start
-git clone https://github.com/w0rp/ale.git ~/.vim/pack/git-plugins/start/ale
+git clone --depth 1 https://github.com/dense-analysis/ale.git ~/.vim/pack/git-plugins/start/ale
 ```
 
 #### NeoVim on Unix
 
 ```bash
 mkdir -p ~/.local/share/nvim/site/pack/git-plugins/start
-git clone https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pack/git-plugins/start/ale
+git clone --depth 1 https://github.com/dense-analysis/ale.git ~/.local/share/nvim/site/pack/git-plugins/start/ale
 ```
 
 #### Vim 8 on Windows
@@ -331,7 +303,7 @@ git clone https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pack/git-plug
 ```bash
 # Run these commands in the "Git for Windows" Bash terminal
 mkdir -p ~/vimfiles/pack/git-plugins/start
-git clone https://github.com/w0rp/ale.git ~/vimfiles/pack/git-plugins/start/ale
+git clone --depth 1 https://github.com/dense-analysis/ale.git ~/vimfiles/pack/git-plugins/start/ale
 ```
 
 #### Generating Vim help files
@@ -362,7 +334,7 @@ You can run the following commands in your terminal to do so:
 
 ```bash
 cd ~/.vim/bundle
-git clone https://github.com/w0rp/ale.git
+git clone https://github.com/dense-analysis/ale.git
 ```
 
 <a name="installation-with-vundle"></a>
@@ -370,27 +342,44 @@ git clone https://github.com/w0rp/ale.git
 ### 3.iii. Installation with Vundle
 
 You can install this plugin using [Vundle](https://github.com/VundleVim/Vundle.vim)
-by using the path on GitHub for this repository.
+by adding the GitHub path for this repository to your `~/.vimrc`:
 
 ```vim
-Plugin 'w0rp/ale'
+Plugin 'dense-analysis/ale'
 ```
 
+Then run the command `:PluginInstall` in Vim.
+
 See the Vundle documentation for more information.
 
+<a name="installation-with-vim-plug"></a>
+
+### 3.iiii. Installation with Vim-Plug
+
+You can install this plugin using [Vim-Plug](https://github.com/junegunn/vim-plug)
+by adding the GitHub path for this repository to your `~/.vimrc`:
+
+```vim
+Plug 'dense-analysis/ale'
+```
+
+Then run the command `:PlugInstall` in Vim.
+
+See the Vim-Plug documentation for more information.
+
 <a name="contributing"></a>
 
 ## 4. Contributing
 
 If you would like to see support for more languages and tools, please
-[create an issue](https://github.com/w0rp/ale/issues)
-or [create a pull request](https://github.com/w0rp/ale/pulls).
+[create an issue](https://github.com/dense-analysis/ale/issues)
+or [create a pull request](https://github.com/dense-analysis/ale/pulls).
 If your tool can read from stdin or you have code to suggest which is good,
 support can be happily added for it.
 
 If you are interested in the general direction of the project, check out the
-[wiki home page](https://github.com/w0rp/ale/wiki). The wiki includes a
-Roadmap for the future, and more.
+[wiki home page](https://github.com/dense-analysis/ale/wiki). The wiki includes
+a Roadmap for the future, and more.
 
 If you'd liked to discuss the project more directly, check out the `#vim-ale` channel
 on Freenode. Web chat is available [here](https://webchat.freenode.net/?channels=vim-ale).
@@ -447,9 +436,56 @@ This plugin will look for linters in the [`ale_linters`](ale_linters) directory.
 Each directory within corresponds to a particular filetype in Vim, and each file
 in each directory corresponds to the name of a particular linter.
 
+<a name="faq-get-info"></a>
+
+### 5.ii. How can I see what ALE has configured for the current file?
+
+Run the following to see what is currently configured:
+
+```vim
+:ALEInfo
+```
+
+<a name="faq-coc-nvim"></a>
+
+### 5.iii. How can I use ALE and coc.nvim together?
+
+[coc.nvim](https://github.com/neoclide/coc.nvim) is a popular Vim plugin written
+in TypeScript and dependent on the [npm](https://www.npmjs.com/) ecosystem for
+providing full IDE features to Vim. Both ALE and coc.nvim implement
+[Language Server Protocol](https://microsoft.github.io/language-server-protocol/)
+(LSP) clients for supporting diagnostics (linting with a live server), and other
+features like auto-completion, and others listed above.
+
+ALE is primarily focused on integrating with external programs through virtually
+any means, provided the plugin remains almost entirely written in Vim script.
+coc.nvim is primarily focused on bringing IDE features to Vim. If you want to
+run external programs on your files to check for errors, and also use the most
+advanced IDE features, you might want to use both plugins at the same time.
+
+The easiest way to get both plugins to work together is to configure coc.nvim to
+send diagnostics to ALE, so ALE controls how all problems are presented to you,
+and to disable all LSP features in ALE, so ALE doesn't try to provide LSP
+features already provided by coc.nvim, such as auto-completion.
+
+1. Open your coc.nvim configuration file with `:CocConfig` and add
+   `"diagnostic.displayByAle": true` to your settings.
+2. Add `let g:ale_disable_lsp = 1` to your vimrc file, before plugins are
+   loaded.
+
+You can also use `b:ale_disable_lsp` in your ftplugin files to enable or disable
+LSP features in ALE for different filetypes. After you configure coc.nvim and
+ALE this way, you can further configure how problems appear to you by using all
+of the settings mentioned in ALE's help file, including how often diagnostics
+are requested. See `:help ale-lint`.
+
+The integration between ALE and coc.nvim works using an API ALE offers for
+letting any other plugin integrate with ALE. If you are interested in writing a
+similar integration, see `:help ale-lint-other-sources`.
+
 <a name="faq-keep-signs"></a>
 
-### 5.ii. How can I keep the sign gutter open?
+### 5.iv. How can I keep the sign gutter open?
 
 You can keep the sign gutter open at all times by setting the
 `g:ale_sign_column_always` to 1
@@ -460,7 +496,7 @@ let g:ale_sign_column_always = 1
 
 <a name="faq-change-signs"></a>
 
-### 5.iii. How can I change the signs ALE uses?
+### 5.v. How can I change the signs ALE uses?
 
 Use these options to specify what text should be used for signs:
 
@@ -480,7 +516,7 @@ highlight clear ALEWarningSign
 
 <a name="faq-change-highlights"></a>
 
-### 5.iv. How can I change or disable the highlights ALE uses?
+### 5.vi. How can I change or disable the highlights ALE uses?
 
 ALE's highlights problems with highlight groups which link to `SpellBad`,
 `SpellCap`, `error`, and `todo` groups by default. The characters that are
@@ -506,7 +542,7 @@ See `:help ale-highlights` for more information.
 
 <a name="faq-statusline"></a>
 
-### 5.v. How can I show errors or warnings in my statusline?
+### 5.vii. How can I show errors or warnings in my statusline?
 
 [vim-airline](https://github.com/vim-airline/vim-airline) integrates with ALE
 for displaying error information in the status bar. If you want to see the
@@ -519,8 +555,16 @@ let g:airline#extensions#ale#enabled = 1
 ```
 
 If you don't want to use vim-airline, you can implement your own statusline
-function without adding any other plugins. ALE provides a function for counting
-the number of problems for this purpose, named `ale#statusline#Count`.
+function without adding any other plugins. ALE provides some functions to
+assist in this endeavour, including:
+
+* `ale#statusline#Count`: Which returns the number of problems found by ALE
+  for a specified buffer.
+* `ale#statusline#FirstProblem`: Which returns a dictionary containing the
+  full loclist details of the first problem of a specified type found by ALE
+  in a buffer. (e.g. The first style warning in the current buffer.)
+  This can be useful for displaying more detailed information such as the
+  line number of the first problem in a file.
 
 Say you want to display all errors as one figure, and all non-errors as another
 figure. You can do the following:
@@ -542,11 +586,12 @@ endfunction
 set statusline=%{LinterStatus()}
 ```
 
-See `:help ale#statusline#Count()` for more information.
+See `:help ale#statusline#Count()` or `:help ale#statusline#FirstProblem()`
+for more information.
 
 <a name="faq-lightline"></a>
 
-### 5.vi. How can I show errors or warnings in my lightline?
+### 5.viii. How can I show errors or warnings in my lightline?
 
 [lightline](https://github.com/itchyny/lightline.vim) does not have built-in
 support for ALE, nevertheless there is a plugin that adds this functionality: [maximbaz/lightline-ale](https://github.com/maximbaz/lightline-ale).
@@ -555,7 +600,7 @@ For more information, check out the sources of that plugin, `:help ale#statuslin
 
 <a name="faq-echo-format"></a>
 
-### 5.vii. How can I change the format for echo messages?
+### 5.ix. How can I change the format for echo messages?
 
 There are 3 global options that allow customizing the echoed message.
 
@@ -564,7 +609,7 @@ There are 3 global options that allow customizing the echoed message.
     * `%...code...%` is an optional error code, and most characters can be
       written between the `%` characters.
     * `%linter%` is the linter name
-    * `%severity` is the severity type
+    * `%severity%` is the severity type
 - `g:ale_echo_msg_error_str` is the string used for error severity.
 - `g:ale_echo_msg_warning_str` is the string used for warning severity.
 
@@ -578,13 +623,13 @@ let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'
 
 Will give you:
 
-![Echoed message](img/echo.png)
+![Echoed message](https://user-images.githubusercontent.com/3518142/59195927-348bd000-8b85-11e9-88b6-508a094f1548.png)
 
 See `:help g:ale_echo_msg_format` for more information.
 
 <a name="faq-autocmd"></a>
 
-### 5.viii. How can I execute some code when ALE starts or stops linting?
+### 5.x. How can I execute some code when ALE starts or stops linting?
 
 ALE runs its own [autocmd](http://vimdoc.sourceforge.net/htmldoc/autocmd.html)
 events when a lint or fix cycle are started and stopped. There is also an event
@@ -607,7 +652,7 @@ augroup END
 
 <a name="faq-navigation"></a>
 
-### 5.ix. How can I navigate between errors quickly?
+### 5.xi. How can I navigate between errors quickly?
 
 ALE offers some commands with `<Plug>` keybinds for moving between warnings and
 errors quickly. You can map the keys Ctrl+j and Ctrl+k to moving between errors
@@ -623,7 +668,7 @@ For more information, consult the online documentation with
 
 <a name="faq-lint-on-save"></a>
 
-### 5.x. How can I run linters only when I save files?
+### 5.xii. How can I run linters only when I save files?
 
 ALE offers an option `g:ale_lint_on_save` for enabling running the linters
 when files are saved. This option is enabled by default. If you only
@@ -633,6 +678,7 @@ options off.
 ```vim
 " Write this in your vimrc file
 let g:ale_lint_on_text_changed = 'never'
+let g:ale_lint_on_insert_leave = 0
 " You can disable this option too
 " if you don't want linters to run on opening a file
 let g:ale_lint_on_enter = 0
@@ -643,7 +689,7 @@ files, you can set `g:ale_lint_on_save` to `0`.
 
 <a name="faq-quickfix"></a>
 
-### 5.xi. How can I use the quickfix list instead of the loclist?
+### 5.xiii. How can I use the quickfix list instead of the loclist?
 
 The quickfix list can be enabled by turning the `g:ale_set_quickfix`
 option on. If you wish to also disable the loclist, you can disable
@@ -673,7 +719,7 @@ instead of the default horizontally.
 
 <a name="faq-jsx-stylelint-eslint"></a>
 
-### 5.xii. How can I check JSX files with both stylelint and eslint?
+### 5.xiv. How can I check JSX files with both stylelint and eslint?
 
 If you configure ALE options correctly in your vimrc file, and install
 the right tools, you can check JSX files with stylelint and eslint.
@@ -696,16 +742,16 @@ options in a jsx.vim ftplugin file.
 
 ```vim
 " In ~/.vim/ftplugin/jsx.vim, or somewhere similar.
+let b:ale_linter_aliases = ['css', 'javascript']
 let b:ale_linters = ['stylelint', 'eslint']
-let b:ale_linter_aliases = ['css']
 ```
 
 Or if you want, you can configure the linters from your vimrc file.
 
 ```vim
 " In ~/.vim/vimrc, or somewhere similar.
+let g:ale_linter_aliases = {'jsx': ['css', 'javascript']}
 let g:ale_linters = {'jsx': ['stylelint', 'eslint']}
-let g:ale_linter_aliases = {'jsx': 'css'}
 ```
 
 ALE will alias the `jsx` filetype so it uses the `css` filetype linters, and
@@ -713,9 +759,40 @@ use the original Array of selected linters for `jsx` from the `g:ale_linters`
 object. All available linters will be used for the filetype `javascript`, and
 no linter will be run twice for the same file.
 
+<a name="faq-vue-eslint"></a>
+
+### 5.xv. How can I check Vue files with ESLint?
+
+To check Vue files with ESLint, your ESLint project configuration file must be
+configured to use the [Vue plugin](https://github.com/vuejs/eslint-plugin-vue).
+After that, you need to configure ALE so it will run the JavaScript ESLint
+linter on your files. The settings you need are similar to the settings needed
+for checking JSX code with both stylelint and ESLint, in the previous section.
+
+```vim
+" In ~/.vim/ftplugin/vue.vim, or somewhere similar.
+
+" Run both javascript and vue linters for vue files.
+let b:ale_linter_aliases = ['javascript', 'vue']
+" Select the eslint and vls linters.
+let b:ale_linters = ['eslint', 'vls']
+```
+
+Run `:ALEInfo` to see which linters are available after telling ALE to run
+JavaScript linters on Vue files. Not all linters support checking Vue files.
+
+If you don't want to configure your linters in ftplugin files for some reason,
+you can configure them from your vimrc file instead.
+
+```vim
+" In ~/.vim/vimrc, or somewhere similar.
+let g:ale_linter_aliases = {'vue': ['vue', 'javascript']}
+let g:ale_linters = {'vue': ['eslint', 'vls']}
+```
+
 <a name="faq-my-battery-is-sad"></a>
 
-### 5.xiii. Will this plugin eat all of my laptop battery power?
+### 5.xvi. Will this plugin eat all of my laptop battery power?
 
 ALE takes advantage of the power of various tools to check your code. This of
 course means that CPU time will be used to continuously check your code. If you
@@ -728,11 +805,10 @@ while you type. ALE uses a timeout which is cancelled and reset every time you
 type, and this delay can be increased so linters are run less often. See
 `:help g:ale_lint_delay` for more information.
 
-If you don't wish to run linters while you type, you can disable that
-behaviour. Set `g:ale_lint_on_text_changed` to `never` or `normal`. You won't
-get as frequent error checking, but ALE shouldn't block your ability to edit a
-document after you save a file, so the asynchronous nature of the plugin will
-still be an advantage.
+If you don't wish to run linters while you type, you can disable that behavior.
+Set `g:ale_lint_on_text_changed` to `never`. You won't get as frequent error
+checking, but ALE shouldn't block your ability to edit a document after you save
+a file, so the asynchronous nature of the plugin will still be an advantage.
 
 If you are still concerned, you can turn the automatic linting off altogether,
 including the option `g:ale_lint_on_enter`, and you can run ALE manually with
@@ -740,7 +816,7 @@ including the option `g:ale_lint_on_enter`, and you can run ALE manually with
 
 <a name="faq-c-configuration"></a>
 
-### 5.xiv. How can I configure my C or C++ project?
+### 5.xvii. How can I configure my C or C++ project?
 
 The structure of C and C++ projects varies wildly from project to project, with
 many different build tools being used for building them, and many different
@@ -749,8 +825,9 @@ ALE cannot easily detect which compiler flags to use.
 
 Some tools and build configurations can generate
 [compile_commands.json](https://clang.llvm.org/docs/JSONCompilationDatabase.html)
-files. The `cppcheck`, `clangcheck` and `clangtidy` linters can read these
-files for automatically determining the appropriate compiler flags to use.
+files. The `cppcheck`, `clangcheck`, `clangtidy` and `cquery` linters can read
+these files for automatically determining the appropriate compiler flags to
+use.
 
 For linting with compilers like `gcc` and `clang`, and with other tools, you
 will need to tell ALE which compiler flags to use yourself. You can use
@@ -759,13 +836,24 @@ setting.  Consult the documentation for that setting for more information.
 `b:ale_linters` can be used to select which tools you want to run, say if you
 want to use only `gcc` for one project, and only `clang` for another.
 
+ALE will attempt to parse `compile_commands.json` files to discover compiler
+flags to use when linting code. See `:help g:ale_c_parse_compile_commands` for
+more information. See Clang's documentation for
+[compile_commands.json files](https://clang.llvm.org/docs/JSONCompilationDatabase.html).
+You should strongly consider generating them in your builds, which is easy to do
+with CMake.
+
+You can also configure ALE to automatically run `make -n` to run dry runs on
+`Makefile`s to discover compiler flags. This can execute arbitrary code, so the
+option is disabled by default. See `:help g:ale_c_parse_makefile`.
+
 You may also configure buffer-local settings for linters with project-specific
 vimrc files. [local_vimrc](https://github.com/LucHermitte/local_vimrc) can be
 used for executing local vimrc files which can be shared in your project.
 
 <a name="faq-buffer-configuration"></a>
 
-### 5.xv. How can I configure ALE differently for different buffers?
+### 5.xviii. How can I configure ALE differently for different buffers?
 
 ALE offers various ways to configure which linters or fixers are run, and
 other settings. For the majority of ALE's settings, they can either be
@@ -801,7 +889,7 @@ Buffer-local variables for settings always override the global settings.
 
 <a name="faq-list-window-height"></a>
 
-### 5.xvi. How can I configure the height of the list in which ALE displays errors?
+### 5.xix. How can I configure the height of the list in which ALE displays errors?
 
 To set a default height for the error list, use the `g:ale_list_window_size` variable.
 
@@ -809,3 +897,34 @@ To set a default height for the error list, use the `g:ale_list_window_size` var
 " Show 5 lines of errors (default: 10)
 let g:ale_list_window_size = 5
 ```
+
+<a name="faq-vm"></a>
+
+### 5.xx. How can I run linters or fixers via Docker or a VM?
+
+ALE supports running linters or fixers via Docker, virtual machines, or in
+combination with any remote machine with a different file system, so long as the
+tools are well-integrated with ALE, and ALE is properly configured to run the
+correct commands and map filename paths between different file systems. See
+`:help ale-lint-other-machines` for the full documentation on how to configure
+ALE to support this.
+
+<a name="faq-window-borders"></a>
+
+### 5.xxi. How can I change the borders for floating preview windows?
+
+Borders for floating preview windows are enabled by default. You can use the
+`g:ale_floating_window_border` setting to configure them.
+
+You could disable the border with an empty list.
+
+```vim
+let g:ale_floating_window_border = []
+```
+
+If the terminal supports Unicode, you might try setting the value like below, to
+make it look nicer.
+
+```vim
+let g:ale_floating_window_border = ['│', '─', '╭', '╮', '╯', '╰']
+```

ale_linters/ada/adals.vim

@@ -0,0 +1,26 @@
+" Author: Bartek Jasicki http://github.com/thindil
+" Description: Support for Ada Language Server
+
+call ale#Set('ada_adals_executable', 'ada_language_server')
+call ale#Set('ada_adals_project', 'default.gpr')
+call ale#Set('ada_adals_encoding', 'utf-8')
+
+function! ale_linters#ada#adals#GetAdaLSConfig(buffer) abort
+    return {
+    \   'ada.projectFile': ale#Var(a:buffer, 'ada_adals_project'),
+    \   'ada.defaultCharset': ale#Var(a:buffer, 'ada_adals_encoding')
+    \}
+endfunction
+
+function! ale_linters#ada#adals#GetRootDirectory(buffer) abort
+    return fnamemodify(bufname(a:buffer), ':p:h')
+endfunction
+
+call ale#linter#Define('ada', {
+\   'name': 'adals',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'ada_adals_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#ada#adals#GetRootDirectory'),
+\   'lsp_config': function('ale_linters#ada#adals#GetAdaLSConfig')
+\})

ale_linters/ada/gcc.vim

@@ -0,0 +1,54 @@
+" Author: Martino Pilia <martino.pilia@gmail.com>
+" Description: Lint Ada files with GCC
+
+call ale#Set('ada_gcc_executable', 'gcc')
+
+" -gnatwa: activate most optional warnings
+" -gnatq: try semantic analysis even if syntax errors have been found
+call ale#Set('ada_gcc_options', '-gnatwa -gnatq')
+
+function! ale_linters#ada#gcc#GetCommand(buffer) abort
+    " Build a suitable output file name. The output file is specified because
+    " the .ali file may be created even if no code generation is attempted.
+    " The output file name must match the source file name (except for the
+    " extension), so here we cannot use the null file as output.
+    let l:tmp_dir = fnamemodify(ale#command#CreateDirectory(a:buffer), ':p')
+    let l:out_file = l:tmp_dir . fnamemodify(bufname(a:buffer), ':t:r') . '.o'
+
+    " -gnatc: Check syntax and semantics only (no code generation attempted)
+    return '%e -x ada -c -gnatc'
+    \   . ' -o ' . ale#Escape(l:out_file)
+    \   . ' -I %s:h'
+    \   . ale#Pad(ale#Var(a:buffer, 'ada_gcc_options'))
+    \   . ' %t'
+endfunction
+
+" For the message format please refer to:
+"   https://gcc.gnu.org/onlinedocs/gnat_ugn/Output-and-Error-Message-Control.html
+"   https://gcc.gnu.org/onlinedocs/gnat_ugn/Warning-Message-Control.html
+function! ale_linters#ada#gcc#Handle(buffer, lines) abort
+    " Error format: <filename>:<lnum>:<col>: <text>
+    " Warning format: <filename>:<lnum>:<col>: warning: <text>
+    let l:re = '\v(.+):([0-9]+):([0-9]+):\s+(warning:)?\s*(.+)\s*'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:re)
+        call add(l:output, {
+        \   'bufnr': a:buffer,
+        \   'lnum': str2nr(l:match[2]),
+        \   'col': str2nr(l:match[3]),
+        \   'type': l:match[4] is# 'warning:' ? 'W' : 'E',
+        \   'text': l:match[5],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('ada', {
+\   'name': 'gcc',
+\   'output_stream': 'stderr',
+\   'executable': {b -> ale#Var(b, 'ada_gcc_executable')},
+\   'command': function('ale_linters#ada#gcc#GetCommand'),
+\   'callback': 'ale_linters#ada#gcc#Handle',
+\})

ale_linters/ansible/ansible_lint.vim

@@ -1,7 +1,13 @@
-" Author: Bjorn Neergaard <bjorn@neersighted.com>
+" Authors: Bjorn Neergaard <bjorn@neersighted.com>, Vytautas Macionis <vytautas.macionis@manomail.de>
 " Description: ansible-lint for ansible-yaml files
 
-function! ale_linters#ansible#ansible_lint#Handle(buffer, lines) abort
+call ale#Set('ansible_ansible_lint_executable', 'ansible-lint')
+
+function! ale_linters#ansible#ansible_lint#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'ansible_ansible_lint_executable')
+endfunction
+
+function! ale_linters#ansible#ansible_lint#Handle(buffer, version, lines) abort
     for l:line in a:lines[:10]
         if match(l:line, '^Traceback') >= 0
             return [{
@@ -12,38 +18,86 @@ function! ale_linters#ansible#ansible_lint#Handle(buffer, lines) abort
         endif
     endfor
 
-    " Matches patterns line the following:
-    "
-    " test.yml:35: [EANSIBLE0002] Trailing whitespace
-    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?: \[?([[:alnum:]]+)\]? (.*)$'
+    let l:version_group = ale#semver#GTE(a:version, [5, 0, 0]) ? '>=5.0.0' : '<5.0.0'
     let l:output = []
 
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        let l:code = l:match[4]
+    if '>=5.0.0' is# l:version_group
+        " Matches patterns line the following:
+        "      test.yml:3:148: syntax-check 'var' is not a valid attribute for a Play
+        "      roles/test/tasks/test.yml:8: [package-latest] [VERY_LOW] Package installs should not use latest
+        "      D:\test\tasks\test.yml:8: [package-latest] [VERY_LOW] package installs should not use latest
+        let l:pattern = '\v^(%([a-zA-Z]:)?[^:]+):(\d+):%((\d+):)? %(\[([-[:alnum:]]+)\]) %(\[([_[:alnum:]]+)\]) (.*)$'
+        let l:error_codes = { 'VERY_HIGH': 'E', 'HIGH': 'E', 'MEDIUM': 'W', 'LOW': 'W', 'VERY_LOW': 'W', 'INFO': 'I' }
 
-        if l:code is# 'EANSIBLE0002'
-        \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
-            " Skip warnings for trailing whitespace if the option is off.
-            continue
-        endif
+        for l:match in ale#util#GetMatches(a:lines, l:pattern)
+            if ale#path#IsBufferPath(a:buffer, l:match[1])
+                call add(l:output, {
+                \   'lnum': l:match[2] + 0,
+                \   'col': l:match[3] + 0,
+                \   'text': l:match[6],
+                \   'code': l:match[4],
+                \   'type': l:error_codes[l:match[5]],
+                \})
+            endif
+        endfor
+    endif
 
-        if ale#path#IsBufferPath(a:buffer, l:match[1])
-            call add(l:output, {
-            \   'lnum': l:match[2] + 0,
-            \   'col': l:match[3] + 0,
-            \   'text': l:match[5],
-            \   'code': l:code,
-            \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
-            \})
-        endif
-    endfor
+    if '<5.0.0' is# l:version_group
+        " Matches patterns line the following:
+        "      test.yml:35: [EANSIBLE0002] Trailing whitespace
+        let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?: \[?([[:alnum:]]+)\]? (.*)$'
+
+        for l:match in ale#util#GetMatches(a:lines, l:pattern)
+            let l:code = l:match[4]
+
+            if l:code is# 'EANSIBLE0002'
+            \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+                " Skip warnings for trailing whitespace if the option is off.
+                continue
+            endif
+
+            if ale#path#IsBufferPath(a:buffer, l:match[1])
+                call add(l:output, {
+                \   'lnum': l:match[2] + 0,
+                \   'col': l:match[3] + 0,
+                \   'text': l:match[5],
+                \   'code': l:code,
+                \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
+                \})
+            endif
+        endfor
+    endif
 
     return l:output
 endfunction
 
+function! ale_linters#ansible#ansible_lint#GetCommand(buffer, version) abort
+    let l:commands = {
+    \   '>=5.0.0': '%e --parseable-severity -x yaml',
+    \   '<5.0.0': '%e -p %t'
+    \}
+    let l:command = ale#semver#GTE(a:version, [5, 0]) ? l:commands['>=5.0.0'] : l:commands['<5.0.0']
+
+    return l:command
+endfunction
+
 call ale#linter#Define('ansible', {
-\   'name': 'ansible',
-\   'executable': 'ansible',
-\   'command': 'ansible-lint -p %t',
-\   'callback': 'ale_linters#ansible#ansible_lint#Handle',
+\   'name': 'ansible_lint',
+\   'aliases': ['ansible', 'ansible-lint'],
+\   'executable': function('ale_linters#ansible#ansible_lint#GetExecutable'),
+\   'command': {buffer -> ale#semver#RunWithVersionCheck(
+\       buffer,
+\       ale_linters#ansible#ansible_lint#GetExecutable(buffer),
+\       '%e --version',
+\       function('ale_linters#ansible#ansible_lint#GetCommand'),
+\   )},
+\   'callback': {buffer, lines -> ale#semver#RunWithVersionCheck(
+\       buffer,
+\       ale_linters#ansible#ansible_lint#GetExecutable(buffer),
+\       '%e --version',
+\       {buffer, version -> ale_linters#ansible#ansible_lint#Handle(
+\           buffer,
+\           l:version,
+\           lines)},
+\   )},
 \})

ale_linters/apiblueprint/drafter.vim

@@ -16,10 +16,12 @@ function! ale_linters#apiblueprint#drafter#HandleErrors(buffer, lines) abort
         \   'lnum': l:match[3] + 0,
         \   'col': l:match[4] + 0,
         \}
+
         if l:match[5] isnot# ''
             let l:item.end_lnum = l:match[6] + 0
             let l:item.end_col = l:match[7] + 0
         endif
+
         call add(l:output, l:item)
     endfor
 
@@ -31,6 +33,6 @@ call ale#linter#Define('apiblueprint', {
 \   'name': 'drafter',
 \   'output_stream': 'stderr',
 \   'executable': 'drafter',
-\   'command': 'drafter --use-line-num --validate %t',
+\   'command': 'drafter --use-line-num --validate',
 \   'callback': 'ale_linters#apiblueprint#drafter#HandleErrors',
 \})

ale_linters/apkbuild/apkbuild_lint.vim

@@ -0,0 +1,12 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: apkbuild-lint from atools linter for APKBUILDs
+
+call ale#Set('apkbuild_apkbuild_lint_executable', 'apkbuild-lint')
+
+call ale#linter#Define('apkbuild', {
+\   'name': 'apkbuild_lint',
+\   'output_stream': 'stdout',
+\   'executable': {b -> ale#Var(b, 'apkbuild_apkbuild_lint_executable')},
+\   'command': '%e %t',
+\   'callback': 'ale#handlers#atools#Handle',
+\})

ale_linters/apkbuild/secfixes_check.vim

@@ -0,0 +1,12 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: secfixes-check from atools linter for APKBUILDs
+
+call ale#Set('apkbuild_secfixes_check_executable', 'secfixes-check')
+
+call ale#linter#Define('apkbuild', {
+\   'name': 'secfixes_check',
+\   'output_stream': 'stdout',
+\   'executable': {b -> ale#Var(b, 'apkbuild_secfixes_check_executable')},
+\   'command': '%e %t',
+\   'callback': 'ale#handlers#atools#Handle',
+\})

ale_linters/asciidoc/alex.vim

@@ -1,11 +1,4 @@
 " Author: Johannes Wienke <languitar@semipol.de>
 " Description: alex for asciidoc files
 
-call ale#linter#Define('help', {
-\   'name': 'alex',
-\   'executable': 'alex',
-\   'command': 'alex %s -t',
-\   'output_stream': 'stderr',
-\   'callback': 'ale#handlers#alex#Handle',
-\   'lint_file': 1,
-\})
+call ale#handlers#alex#DefineLinter('asciidoc', '--text')

ale_linters/asciidoc/languagetool.vim

@@ -0,0 +1,5 @@
+" Author: Horacio Sanson (hsanson [ät] gmail.com)
+" Description: languagetool for asciidoc files, copied from markdown.
+
+
+call ale#handlers#languagetool#DefineLinter('asciidoc')

ale_linters/asciidoc/textlint.vim

@@ -0,0 +1,9 @@
+" Author: TANIGUCHI Masaya <ta2gch@gmail.com>
+" Description: textlint for AsciiDoc files
+
+call ale#linter#Define('asciidoc', {
+\   'name': 'textlint',
+\   'executable': function('ale#handlers#textlint#GetExecutable'),
+\   'command': function('ale#handlers#textlint#GetCommand'),
+\   'callback': 'ale#handlers#textlint#HandleTextlintOutput',
+\})

ale_linters/asciidoc/vale.vim

@@ -0,0 +1,9 @@
+" Author: Jeff Kreeftmeijer https://github.com/jeffkreeftmeijer
+" Description: vale for AsciiDoc files
+
+call ale#linter#Define('asciidoc', {
+\   'name': 'vale',
+\   'executable': 'vale',
+\   'command': 'vale --output=line %t',
+\   'callback': 'ale#handlers#unix#HandleAsWarning',
+\})

ale_linters/asciidoc/write-good.vim

@@ -1,9 +0,0 @@
-" Author: Sumner Evans <sumner.evans98@gmail.com>
-" Description: write-good for AsciiDoc files
-
-call ale#linter#Define('asciidoc', {
-\   'name': 'write-good',
-\   'executable_callback': 'ale#handlers#writegood#GetExecutable',
-\   'command_callback': 'ale#handlers#writegood#GetCommand',
-\   'callback': 'ale#handlers#writegood#Handle',
-\})

ale_linters/asciidoc/writegood.vim

@@ -0,0 +1,4 @@
+" Author: Sumner Evans <sumner.evans98@gmail.com>
+" Description: write-good for AsciiDoc files
+
+call ale#handlers#writegood#DefineLinter('asciidoc')

ale_linters/asm/gcc.vim

@@ -4,15 +4,13 @@
 call ale#Set('asm_gcc_executable', 'gcc')
 call ale#Set('asm_gcc_options', '-Wall')
 
-function! ale_linters#asm#gcc#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'asm_gcc_executable')
-endfunction
-
 function! ale_linters#asm#gcc#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#asm#gcc#GetExecutable(a:buffer))
-    \    . ' -x assembler -fsyntax-only '
-    \    . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-    \    . ' ' . ale#Var(a:buffer, 'asm_gcc_options') . ' -'
+    " `-o /dev/null` or `-o null` is needed to catch all errors,
+    " -fsyntax-only doesn't catch everything.
+    return '%e -x assembler'
+    \   . ' -o ' . g:ale#util#nul_file
+    \   . '-iquote %s:h'
+    \   . ' ' . ale#Var(a:buffer, 'asm_gcc_options') . ' -'
 endfunction
 
 function! ale_linters#asm#gcc#Handle(buffer, lines) abort
@@ -33,7 +31,7 @@ endfunction
 call ale#linter#Define('asm', {
 \    'name': 'gcc',
 \    'output_stream': 'stderr',
-\    'executable_callback': 'ale_linters#asm#gcc#GetExecutable',
-\    'command_callback': 'ale_linters#asm#gcc#GetCommand',
+\    'executable': {b -> ale#Var(b, 'asm_gcc_executable')},
+\    'command': function('ale_linters#asm#gcc#GetCommand'),
 \    'callback': 'ale_linters#asm#gcc#Handle',
 \})

ale_linters/awk/gawk.vim

@@ -1,30 +1,22 @@
 " Author: kmarc <korondi.mark@gmail.com>
 " Description: This file adds support for using GNU awk with sripts.
 
-let g:ale_awk_gawk_executable =
-\   get(g:, 'ale_awk_gawk_executable', 'gawk')
-
-let g:ale_awk_gawk_options =
-\   get(g:, 'ale_awk_gawk_options', '')
-
-function! ale_linters#awk#gawk#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'awk_gawk_executable')
-endfunction
+call ale#Set('awk_gawk_executable', 'gawk')
+call ale#Set('awk_gawk_options', '')
 
 function! ale_linters#awk#gawk#GetCommand(buffer) abort
     " note the --source 'BEGIN ...' is to prevent
     " gawk from attempting to execute the body of the script
     " it is linting.
-    return ale_linters#awk#gawk#GetExecutable(a:buffer)
-    \   . " --source 'BEGIN { exit } END { exit 1 }'"
-    \   . ' ' . ale#Var(a:buffer, 'awk_gawk_options')
-    \   . ' ' . '-f %t --lint /dev/null'
+    return '%e --source ' . ale#Escape('BEGIN { exit } END { exit 1 }')
+    \   .  ale#Pad(ale#Var(a:buffer, 'awk_gawk_options'))
+    \   . ' -f %t --lint /dev/null'
 endfunction
 
 call ale#linter#Define('awk', {
 \   'name': 'gawk',
-\   'executable_callback': 'ale_linters#awk#gawk#GetExecutable',
-\   'command_callback': 'ale_linters#awk#gawk#GetCommand',
+\   'executable': {b -> ale#Var(b, 'awk_gawk_executable')},
+\   'command': function('ale_linters#awk#gawk#GetCommand'),
 \   'callback': 'ale#handlers#gawk#HandleGawkFormat',
 \   'output_stream': 'both'
 \})

ale_linters/bats/shellcheck.vim

@@ -0,0 +1,4 @@
+" Author: Ian2020 <https://github.com/Ian2020>
+" Description: shellcheck linter for bats scripts.
+
+call ale#handlers#shellcheck#DefineLinter('bats')

ale_linters/bib/bibclean.vim

@@ -0,0 +1,80 @@
+" Author: Horacio Sanson - https://github.com/hsanson
+" Description: Support for bibclean linter for BibTeX files.
+
+call ale#Set('bib_bibclean_executable', 'bibclean')
+
+function! ale_linters#bib#bibclean#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'bib_bibclean_executable')
+
+    return ale#Escape(l:executable) . ' -file-position '
+endfunction
+
+function! ale_linters#bib#bibclean#get_type(str) abort
+    if a:str is# '??'
+        return 'E'
+    else
+        return 'W'
+    endif
+endfunction
+
+function! ale_linters#bib#bibclean#match_msg(line) abort
+    " Legacy message pattern works for bibclean <= v2.11.4. If empty, try
+    " the new message pattern for bibtex > v2.11.4
+    let l:matches_legacy = matchlist(a:line, '^\(.*\) "stdin", line \(\d\+\): \(.*\)$')
+
+    return ! empty(l:matches_legacy) ? l:matches_legacy
+    \ : matchlist(a:line, '^\(.*\) stdin:\(\d\+\):\(.*\)$')
+endfunction
+
+function! ale_linters#bib#bibclean#match_entry(line) abort
+    return matchlist(a:line, 'Entry   input byte=.* line=\(.*\) column=\(.*\) output .*$')
+endfunction
+
+function! ale_linters#bib#bibclean#match_value(line) abort
+    return matchlist(a:line, 'Value   input byte=.* line=\(.*\) column=\(.*\) output .*$')
+endfunction
+
+function! ale_linters#bib#bibclean#Handle(buffer, lines) abort
+    let l:output = []
+
+    let l:type = 'E'
+    let l:msg  = ''
+
+    for l:line in a:lines
+        if empty(l:msg)
+            let l:mlist = ale_linters#bib#bibclean#match_msg(l:line)
+
+            if !empty(l:mlist)
+                let l:msg = l:mlist[3]
+                let l:type = ale_linters#bib#bibclean#get_type(l:mlist[1])
+            endif
+        else
+            if l:type is# 'E'
+                let l:mlist = ale_linters#bib#bibclean#match_entry(l:line)
+            else
+                let l:mlist = ale_linters#bib#bibclean#match_value(l:line)
+            endif
+
+            if !empty(l:mlist)
+                call add(l:output, {
+                \ 'lnum': l:mlist[1],
+                \ 'col': l:mlist[2],
+                \ 'text': l:msg,
+                \ 'type': l:type
+                \})
+
+                let l:msg = ''
+            endif
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('bib', {
+\   'name': 'bibclean',
+\   'executable': {b -> ale#Var(b, 'bib_bibclean_executable')},
+\   'command': function('ale_linters#bib#bibclean#GetCommand'),
+\   'output_stream': 'stderr',
+\   'callback': 'ale_linters#bib#bibclean#Handle',
+\})

ale_linters/c/cc.vim

@@ -0,0 +1,53 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: A C compiler linter for C files with gcc/clang, etc.
+
+call ale#Set('c_cc_executable', '<auto>')
+call ale#Set('c_cc_options', '-std=c11 -Wall')
+
+function! ale_linters#c#cc#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'c_cc_executable')
+
+    " Default to either clang or gcc.
+    if l:executable is# '<auto>'
+        if ale#engine#IsExecutable(a:buffer, 'clang')
+            let l:executable = 'clang'
+        else
+            let l:executable = 'gcc'
+        endif
+    endif
+
+    return l:executable
+endfunction
+
+function! ale_linters#c#cc#GetCommand(buffer, output) abort
+    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+    let l:ale_flags = ale#Var(a:buffer, 'c_cc_options')
+
+    if l:cflags =~# '-std='
+        let l:ale_flags = substitute(
+        \   l:ale_flags,
+        \   '-std=\(c\|gnu\)[0-9]\{2\}',
+        \   '',
+        \   'g')
+    endif
+
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    "
+    " `-o /dev/null` or `-o null` is needed to catch all errors,
+    " -fsyntax-only doesn't catch everything.
+    return '%e -S -x c'
+    \   . ' -o ' . g:ale#util#nul_file
+    \   . ' -iquote %s:h'
+    \   . ale#Pad(l:cflags)
+    \   . ale#Pad(l:ale_flags) . ' -'
+endfunction
+
+call ale#linter#Define('c', {
+\   'name': 'cc',
+\   'aliases': ['gcc', 'clang'],
+\   'output_stream': 'stderr',
+\   'executable': function('ale_linters#c#cc#GetExecutable'),
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#cc#GetCommand'))},
+\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
+\})

ale_linters/c/ccls.vim

@@ -0,0 +1,15 @@
+" Author: Ye Jingchen <ye.jingchen@gmail.com>, Ben Falconer <ben@falconers.me.uk>, jtalowell <jtalowell@protonmail.com>
+" Description: A language server for C
+
+call ale#Set('c_ccls_executable', 'ccls')
+call ale#Set('c_ccls_init_options', {})
+call ale#Set('c_build_dir', '')
+
+call ale#linter#Define('c', {
+\   'name': 'ccls',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'c_ccls_executable')},
+\   'command': '%e',
+\   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
+\   'initialization_options': {b -> ale#handlers#ccls#GetInitOpts(b, 'c_ccls_init_options')},
+\})

ale_linters/c/clang.vim

@@ -1,32 +0,0 @@
-" Author: Masahiro H https://github.com/mshr-h
-" Description: clang linter for c files
-
-call ale#Set('c_clang_executable', 'clang')
-call ale#Set('c_clang_options', '-std=c11 -Wall')
-
-function! ale_linters#c#clang#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'c_clang_executable')
-endfunction
-
-function! ale_linters#c#clang#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return ale#Escape(ale_linters#c#clang#GetExecutable(a:buffer))
-    \   . ' -S -x c -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . l:cflags
-    \   . ale#Var(a:buffer, 'c_clang_options') . ' -'
-endfunction
-
-call ale#linter#Define('c', {
-\   'name': 'clang',
-\   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#c#clang#GetExecutable',
-\   'command_chain': [
-\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
-\       {'callback': 'ale_linters#c#clang#GetCommand'}
-\   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
-\})

ale_linters/c/clangd.vim

@@ -0,0 +1,22 @@
+" Author: Andrey Melentyev <andrey.melentyev@protonmail.com>
+" Description: Clangd language server
+
+call ale#Set('c_clangd_executable', 'clangd')
+call ale#Set('c_clangd_options', '')
+call ale#Set('c_build_dir', '')
+
+function! ale_linters#c#clangd#GetCommand(buffer) abort
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+
+    return '%e'
+    \    . ale#Pad(ale#Var(a:buffer, 'c_clangd_options'))
+    \    . (!empty(l:build_dir) ? ' -compile-commands-dir=' . ale#Escape(l:build_dir) : '')
+endfunction
+
+call ale#linter#Define('c', {
+\   'name': 'clangd',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'c_clangd_executable')},
+\   'command': function('ale_linters#c#clangd#GetCommand'),
+\   'project_root': function('ale#c#FindProjectRoot'),
+\})

ale_linters/c/clangtidy.vim

@@ -10,45 +10,33 @@ call ale#Set('c_clangtidy_executable', 'clang-tidy')
 " Consult the check list in clang-tidy's documentation:
 " http://clang.llvm.org/extra/clang-tidy/checks/list.html
 
-call ale#Set('c_clangtidy_checks', ['*'])
-" Set this option to manually set some options for clang-tidy.
+call ale#Set('c_clangtidy_checks', [])
+" Set this option to manually set some options for clang-tidy to use as compile
+" flags.
 " This will disable compile_commands.json detection.
 call ale#Set('c_clangtidy_options', '')
+" Set this option to manually set options for clang-tidy directly.
+call ale#Set('c_clangtidy_extra_options', '')
 call ale#Set('c_build_dir', '')
 
-function! ale_linters#c#clangtidy#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'c_clangtidy_executable')
-endfunction
-
-function! s:GetBuildDirectory(buffer) abort
-    " Don't include build directory for header files, as compile_commands.json
-    " files don't consider headers to be translation units, and provide no
-    " commands for compiling header files.
-    if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
-        return ''
-    endif
-
-    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
-
-    " c_build_dir has the priority if defined
-    if !empty(l:build_dir)
-        return l:build_dir
-    endif
-
-    return ale#c#FindCompileCommands(a:buffer)
-endfunction
-
-function! ale_linters#c#clangtidy#GetCommand(buffer) abort
+function! ale_linters#c#clangtidy#GetCommand(buffer, output) abort
     let l:checks = join(ale#Var(a:buffer, 'c_clangtidy_checks'), ',')
-    let l:build_dir = s:GetBuildDirectory(a:buffer)
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+    let l:options = ''
 
     " Get the extra options if we couldn't find a build directory.
-    let l:options = empty(l:build_dir)
-    \   ? ale#Var(a:buffer, 'c_clangtidy_options')
-    \   : ''
+    if empty(l:build_dir)
+        let l:options = ale#Var(a:buffer, 'c_clangtidy_options')
+        let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+        let l:options .= !empty(l:options) ? ale#Pad(l:cflags) : l:cflags
+    endif
 
-    return ale#Escape(ale_linters#c#clangtidy#GetExecutable(a:buffer))
+    " Get the options to pass directly to clang-tidy
+    let l:extra_options = ale#Var(a:buffer, 'c_clangtidy_extra_options')
+
+    return '%e'
     \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
+    \   . (!empty(l:extra_options) ? ' ' . ale#Escape(l:extra_options) : '')
     \   . ' %s'
     \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
     \   . (!empty(l:options) ? ' -- ' . l:options : '')
@@ -57,8 +45,8 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'clangtidy',
 \   'output_stream': 'stdout',
-\   'executable_callback': 'ale_linters#c#clangtidy#GetExecutable',
-\   'command_callback': 'ale_linters#c#clangtidy#GetCommand',
+\   'executable': {b -> ale#Var(b, 'c_clangtidy_executable')},
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#clangtidy#GetCommand'))},
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})

ale_linters/c/cppcheck.vim

@@ -4,36 +4,26 @@
 call ale#Set('c_cppcheck_executable', 'cppcheck')
 call ale#Set('c_cppcheck_options', '--enable=style')
 
-function! ale_linters#c#cppcheck#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'c_cppcheck_executable')
-endfunction
-
 function! ale_linters#c#cppcheck#GetCommand(buffer) abort
-    " Search upwards from the file for compile_commands.json.
-    "
-    " If we find it, we'll `cd` to where the compile_commands.json file is,
-    " then use the file to set up import paths, etc.
-    let l:compile_commmands_path = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
-
-    let l:cd_command = !empty(l:compile_commmands_path)
-    \   ? ale#path#CdString(fnamemodify(l:compile_commmands_path, ':h'))
-    \   : ''
-    let l:compile_commands_option = !empty(l:compile_commmands_path)
-    \   ? '--project=compile_commands.json '
+    let l:compile_commands_option = ale#handlers#cppcheck#GetCompileCommandsOptions(a:buffer)
+    let l:buffer_path_include = empty(l:compile_commands_option)
+    \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
     \   : ''
+    let l:template = ' --template=' . ale#Escape('{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]\\n{code}')
 
-    return l:cd_command
-    \   . ale#Escape(ale_linters#c#cppcheck#GetExecutable(a:buffer))
-    \   . ' -q --language=c '
-    \   . l:compile_commands_option
-    \   . ale#Var(a:buffer, 'c_cppcheck_options')
+    return '%e -q --language=c'
+    \   . l:template
+    \   . ale#Pad(l:compile_commands_option)
+    \   . ale#Pad(ale#Var(a:buffer, 'c_cppcheck_options'))
+    \   . l:buffer_path_include
     \   . ' %t'
 endfunction
 
 call ale#linter#Define('c', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable_callback': 'ale_linters#c#cppcheck#GetExecutable',
-\   'command_callback': 'ale_linters#c#cppcheck#GetCommand',
+\   'executable': {b -> ale#Var(b, 'c_cppcheck_executable')},
+\   'cwd': function('ale#handlers#cppcheck#GetCwd'),
+\   'command': function('ale_linters#c#cppcheck#GetCommand'),
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})

ale_linters/c/cquery.vim

@@ -0,0 +1,30 @@
+" Author: Ben Falconer <ben@falconers.me.uk>, jtalowell <jtalowell@protonmail.com>
+" Description: A language server for C
+
+call ale#Set('c_cquery_executable', 'cquery')
+call ale#Set('c_cquery_cache_directory', expand('~/.cache/cquery'))
+
+function! ale_linters#c#cquery#GetProjectRoot(buffer) abort
+    " Try to find cquery configuration files first.
+    let l:config = ale#path#FindNearestFile(a:buffer, '.cquery')
+
+    if !empty(l:config)
+        return fnamemodify(l:config, ':h')
+    endif
+
+    " Fall back on default project root detection.
+    return ale#c#FindProjectRoot(a:buffer)
+endfunction
+
+function! ale_linters#c#cquery#GetInitializationOptions(buffer) abort
+    return {'cacheDirectory': ale#Var(a:buffer, 'c_cquery_cache_directory')}
+endfunction
+
+call ale#linter#Define('c', {
+\   'name': 'cquery',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'c_cquery_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#c#cquery#GetProjectRoot'),
+\   'initialization_options': function('ale_linters#c#cquery#GetInitializationOptions'),
+\})

ale_linters/c/flawfinder.vim

@@ -6,26 +6,20 @@ call ale#Set('c_flawfinder_options', '')
 call ale#Set('c_flawfinder_minlevel', 1)
 call ale#Set('c_flawfinder_error_severity', 6)
 
-function! ale_linters#c#flawfinder#GetExecutable(buffer) abort
-   return ale#Var(a:buffer, 'c_flawfinder_executable')
-endfunction
-
 function! ale_linters#c#flawfinder#GetCommand(buffer) abort
+    " Set the minimum vulnerability level for flawfinder to bother with
+    let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'c_flawfinder_minlevel')
 
-   " Set the minimum vulnerability level for flawfinder to bother with
-   let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'c_flawfinder_minlevel')
-
-   return ale#Escape(ale_linters#c#flawfinder#GetExecutable(a:buffer))
-   \  . ' -CDQS'
-   \  . ale#Var(a:buffer, 'c_flawfinder_options')
-   \  . l:minlevel
-   \  . ' %t'
+    return '%e -CDQS'
+    \  . ale#Pad(ale#Var(a:buffer, 'c_flawfinder_options'))
+    \  . l:minlevel
+    \  . ' %t'
 endfunction
 
 call ale#linter#Define('c', {
 \  'name': 'flawfinder',
 \  'output_stream': 'stdout',
-\  'executable_callback': 'ale_linters#c#flawfinder#GetExecutable',
-\  'command_callback': 'ale_linters#c#flawfinder#GetCommand',
+\  'executable': {b -> ale#Var(b, 'c_flawfinder_executable')},
+\  'command': function('ale_linters#c#flawfinder#GetCommand'),
 \  'callback': 'ale#handlers#flawfinder#HandleFlawfinderFormat',
 \})

ale_linters/c/gcc.vim

@@ -1,32 +0,0 @@
-" Author: w0rp <devw0rp@gmail.com>
-" Description: gcc linter for c files
-
-call ale#Set('c_gcc_executable', 'gcc')
-call ale#Set('c_gcc_options', '-std=c11 -Wall')
-
-function! ale_linters#c#gcc#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'c_gcc_executable')
-endfunction
-
-function! ale_linters#c#gcc#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return ale#Escape(ale_linters#c#gcc#GetExecutable(a:buffer))
-    \   . ' -S -x c -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . l:cflags
-    \   . ale#Var(a:buffer, 'c_gcc_options') . ' -'
-endfunction
-
-call ale#linter#Define('c', {
-\   'name': 'gcc',
-\   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#c#gcc#GetExecutable',
-\   'command_chain': [
-\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
-\       {'callback': 'ale_linters#c#gcc#GetCommand'}
-\   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
-\})

ale_linters/chef/cookstyle.vim

@@ -0,0 +1,54 @@
+" Author: Raphael Hoegger - https://github.com/pfuender
+" Description: Cookstyle (RuboCop based), a code style analyzer for Ruby files
+
+call ale#Set('chef_cookstyle_executable', 'cookstyle')
+call ale#Set('chef_cookstyle_options', '')
+
+function! ale_linters#chef#cookstyle#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'chef_cookstyle_options')
+
+    return '%e' . ale#Pad(escape(l:options, '~')) . ' --force-exclusion --format json --stdin ' . ' %s'
+endfunction
+
+function! ale_linters#chef#cookstyle#Handle(buffer, lines) abort
+    if len(a:lines) == 0
+        return []
+    endif
+
+    let l:errors = ale#util#FuzzyJSONDecode(a:lines[0], {})
+
+    if !has_key(l:errors, 'summary')
+    \|| l:errors['summary']['offense_count'] == 0
+    \|| empty(l:errors['files'])
+        return []
+    endif
+
+    let l:output = []
+
+    for l:error in l:errors['files'][0]['offenses']
+        let l:start_col = str2nr(l:error['location']['start_column'])
+        let l:end_col = str2nr(l:error['location']['last_column'])
+
+        if !l:end_col
+            let l:end_col = l:start_col + 1
+        endif
+
+        call add(l:output, {
+        \   'lnum': str2nr(l:error['location']['line']),
+        \   'col': l:start_col,
+        \   'end_col': l:end_col,
+        \   'code': l:error['cop_name'],
+        \   'text': l:error['message'],
+        \   'type': l:error['severity'] is? 'convention' ? 'W' : 'E',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('chef', {
+\   'name': 'cookstyle',
+\   'executable': {b -> ale#Var(b, 'chef_cookstyle_executable')},
+\   'command': function('ale_linters#chef#cookstyle#GetCommand'),
+\   'callback': 'ale_linters#chef#cookstyle#Handle',
+\})

ale_linters/chef/foodcritic.vim

@@ -6,17 +6,10 @@
 call ale#Set('chef_foodcritic_executable', 'foodcritic')
 call ale#Set('chef_foodcritic_options', '')
 
-function! ale_linters#chef#foodcritic#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'chef_foodcritic_executable')
-endfunction
-
 function! ale_linters#chef#foodcritic#GetCommand(buffer) abort
-    let l:executable = ale_linters#chef#foodcritic#GetExecutable(a:buffer)
     let l:options = ale#Var(a:buffer, 'chef_foodcritic_options')
 
-    return ale#Escape(l:executable)
-    \   . (!empty(l:options) ? ' ' . escape(l:options, '~') : '')
-    \   . ' %s'
+    return '%e' . ale#Pad(escape(l:options, '~')) . ' %s'
 endfunction
 
 function! ale_linters#chef#foodcritic#Handle(buffer, lines) abort
@@ -41,8 +34,8 @@ endfunction
 
 call ale#linter#Define('chef', {
 \   'name': 'foodcritic',
-\   'executable_callback': 'ale_linters#chef#foodcritic#GetExecutable',
-\   'command_callback': 'ale_linters#chef#foodcritic#GetCommand',
+\   'executable': {b -> ale#Var(b, 'chef_foodcritic_executable')},
+\   'command': function('ale_linters#chef#foodcritic#GetCommand'),
 \   'callback': 'ale_linters#chef#foodcritic#Handle',
 \   'lint_file': 1,
 \})

ale_linters/clojure/clj_kondo.vim

@@ -0,0 +1,34 @@
+" Author: Masashi Iizuka <liquidz.uo@gmail.com>
+" Description: linter for clojure using clj-kondo https://github.com/borkdude/clj-kondo
+
+function! ale_linters#clojure#clj_kondo#HandleCljKondoFormat(buffer, lines) abort
+    " output format
+    " <filename>:<line>:<column>: <issue type>: <message>
+    let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+):? ((Exception|error|warning): ?(.+))$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:type = 'E'
+
+        if l:match[4] is? 'warning'
+            let l:type = 'W'
+        endif
+
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'text': l:match[3],
+        \   'type': l:type,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('clojure', {
+\   'name': 'clj-kondo',
+\   'output_stream': 'stdout',
+\   'executable': 'clj-kondo',
+\   'command': 'clj-kondo --cache --lint %t',
+\   'callback': 'ale_linters#clojure#clj_kondo#HandleCljKondoFormat',
+\})

ale_linters/clojure/joker.vim

@@ -9,9 +9,11 @@ function! ale_linters#clojure#joker#HandleJokerFormat(buffer, lines) abort
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:type = 'E'
+
         if l:match[4] is? 'Parse warning'
-          let l:type = 'W'
+            let l:type = 'W'
         endif
+
         call add(l:output, {
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 0,
@@ -27,6 +29,6 @@ call ale#linter#Define('clojure', {
 \   'name': 'joker',
 \   'output_stream': 'stderr',
 \   'executable': 'joker',
-\   'command': 'joker --lint %t',
+\   'command': 'joker --working-dir %s --lint %t',
 \   'callback': 'ale_linters#clojure#joker#HandleJokerFormat',
 \})

ale_linters/cloudformation/cfn_python_lint.vim

@@ -0,0 +1,36 @@
+" Author: Yasuhiro Kiyota <yasuhiroki.duck@gmail.com>
+" Description: Support cfn-python-lint for AWS Cloudformation template file
+
+function! ale_linters#cloudformation#cfn_python_lint#Handle(buffer, lines) abort
+    " Matches patterns line the following:
+    "
+    " sample.template.yaml:96:7:96:15:E3012:Property Resources/Sample/Properties/FromPort should be of type Integer
+    let l:pattern = '\v^(.*):(\d+):(\d+):(\d+):(\d+):([[:alnum:]]+):(.*)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:code = l:match[6]
+
+        if ale#path#IsBufferPath(a:buffer, l:match[1])
+            call add(l:output, {
+            \   'lnum': l:match[2],
+            \   'col': l:match[3],
+            \   'end_lnum': l:match[4],
+            \   'end_col': l:match[5],
+            \   'code': l:code,
+            \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
+            \   'text': l:match[7]
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cloudformation', {
+\   'name': 'cloudformation',
+\   'aliases': ['cfn-lint'],
+\   'executable': 'cfn-lint',
+\   'command': 'cfn-lint --template %t --format parseable',
+\   'callback': 'ale_linters#cloudformation#cfn_python_lint#Handle',
+\})

ale_linters/cmake/cmakelint.vim

@@ -18,7 +18,7 @@ endfunction
 
 call ale#linter#Define('cmake', {
 \   'name': 'cmakelint',
-\   'executable_callback': 'ale_linters#cmake#cmakelint#Executable',
-\   'command_callback': 'ale_linters#cmake#cmakelint#Command',
+\   'executable': function('ale_linters#cmake#cmakelint#Executable'),
+\   'command': function('ale_linters#cmake#cmakelint#Command'),
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
 \})

ale_linters/coffee/coffee.vim

@@ -16,8 +16,8 @@ endfunction
 
 call ale#linter#Define('coffee', {
 \   'name': 'coffee',
-\   'executable_callback': 'ale_linters#coffee#coffee#GetExecutable',
-\   'command_callback': 'ale_linters#coffee#coffee#GetCommand',
+\   'executable': function('ale_linters#coffee#coffee#GetExecutable'),
+\   'command': function('ale_linters#coffee#coffee#GetCommand'),
 \   'output_stream': 'stderr',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/coffee/coffeelint.vim

@@ -37,7 +37,7 @@ endfunction
 
 call ale#linter#Define('coffee', {
 \   'name': 'coffeelint',
-\   'executable_callback': 'ale_linters#coffee#coffeelint#GetExecutable',
-\   'command_callback': 'ale_linters#coffee#coffeelint#GetCommand',
+\   'executable': function('ale_linters#coffee#coffeelint#GetExecutable'),
+\   'command': function('ale_linters#coffee#coffeelint#GetCommand'),
 \   'callback': 'ale_linters#coffee#coffeelint#Handle',
 \})

ale_linters/cpp/cc.vim

@@ -0,0 +1,53 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: A C++ compiler linter for C++ files with gcc/clang, etc.
+
+call ale#Set('cpp_cc_executable', '<auto>')
+call ale#Set('cpp_cc_options', '-std=c++14 -Wall')
+
+function! ale_linters#cpp#cc#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'cpp_cc_executable')
+
+    " Default to either clang++ or gcc.
+    if l:executable is# '<auto>'
+        if ale#engine#IsExecutable(a:buffer, 'clang++')
+            let l:executable = 'clang++'
+        else
+            let l:executable = 'gcc'
+        endif
+    endif
+
+    return l:executable
+endfunction
+
+function! ale_linters#cpp#cc#GetCommand(buffer, output) abort
+    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+    let l:ale_flags = ale#Var(a:buffer, 'cpp_cc_options')
+
+    if l:cflags =~# '-std='
+        let l:ale_flags = substitute(
+        \   l:ale_flags,
+        \   '-std=\(c\|gnu\)++[0-9]\{2\}',
+        \   '',
+        \   'g')
+    endif
+
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    "
+    " `-o /dev/null` or `-o null` is needed to catch all errors,
+    " -fsyntax-only doesn't catch everything.
+    return '%e -S -x c++'
+    \   . ' -o ' . g:ale#util#nul_file
+    \   . ' -iquote %s:h'
+    \   . ale#Pad(l:cflags)
+    \   . ale#Pad(l:ale_flags) . ' -'
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'cc',
+\   'aliases': ['gcc', 'clang', 'g++', 'clang++'],
+\   'output_stream': 'stderr',
+\   'executable': function('ale_linters#cpp#cc#GetExecutable'),
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#cc#GetCommand'))},
+\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
+\})

ale_linters/cpp/ccls.vim

@@ -0,0 +1,15 @@
+" Author: Ye Jingchen <ye.jingchen@gmail.com>, Ben Falconer <ben@falconers.me.uk>, jtalowell <jtalowell@protonmail.com>
+" Description: A language server for C++
+
+call ale#Set('cpp_ccls_executable', 'ccls')
+call ale#Set('cpp_ccls_init_options', {})
+call ale#Set('c_build_dir', '')
+
+call ale#linter#Define('cpp', {
+\   'name': 'ccls',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'cpp_ccls_executable')},
+\   'command': '%e',
+\   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
+\   'initialization_options': {b -> ale#handlers#ccls#GetInitOpts(b, 'cpp_ccls_init_options')},
+\})

ale_linters/cpp/clang.vim

@@ -1,32 +0,0 @@
-" Author: Tomota Nakamura <https://github.com/tomotanakamura>
-" Description: clang linter for cpp files
-
-call ale#Set('cpp_clang_executable', 'clang++')
-call ale#Set('cpp_clang_options', '-std=c++14 -Wall')
-
-function! ale_linters#cpp#clang#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_clang_executable')
-endfunction
-
-function! ale_linters#cpp#clang#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return ale#Escape(ale_linters#cpp#clang#GetExecutable(a:buffer))
-    \   . ' -S -x c++ -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . l:cflags
-    \   . ale#Var(a:buffer, 'cpp_clang_options') . ' -'
-endfunction
-
-call ale#linter#Define('cpp', {
-\   'name': 'clang',
-\   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#cpp#clang#GetExecutable',
-\   'command_chain': [
-\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
-\       {'callback': 'ale_linters#cpp#clang#GetCommand'},
-\   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
-\})

ale_linters/cpp/clangcheck.vim

@@ -5,10 +5,6 @@ call ale#Set('cpp_clangcheck_executable', 'clang-check')
 call ale#Set('cpp_clangcheck_options', '')
 call ale#Set('c_build_dir', '')
 
-function! ale_linters#cpp#clangcheck#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_clangcheck_executable')
-endfunction
-
 function! ale_linters#cpp#clangcheck#GetCommand(buffer) abort
     let l:user_options = ale#Var(a:buffer, 'cpp_clangcheck_options')
 
@@ -16,24 +12,24 @@ function! ale_linters#cpp#clangcheck#GetCommand(buffer) abort
     let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
 
     if empty(l:build_dir)
-        let l:build_dir = ale#c#FindCompileCommands(a:buffer)
+        let [l:root, l:json_file] = ale#c#FindCompileCommands(a:buffer)
+        let l:build_dir = ale#path#Dirname(l:json_file)
     endif
 
     " The extra arguments in the command are used to prevent .plist files from
     " being generated. These are only added if no build directory can be
     " detected.
-    return ale#Escape(ale_linters#cpp#clangcheck#GetExecutable(a:buffer))
-    \   . ' -analyze %s'
-    \   . (empty(l:build_dir) ? ' -extra-arg -Xclang -extra-arg -analyzer-output=text' : '')
-    \   . (!empty(l:user_options) ? ' ' . l:user_options : '')
+    return '%e -analyze %s'
+    \   . (empty(l:build_dir) ? ' --extra-arg=-Xclang --extra-arg=-analyzer-output=text --extra-arg=-fno-color-diagnostics': '')
+    \   . ale#Pad(l:user_options)
     \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
 endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'clangcheck',
 \   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#cpp#clangcheck#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#clangcheck#GetCommand',
+\   'executable': {b -> ale#Var(b, 'cpp_clangcheck_executable')},
+\   'command': function('ale_linters#cpp#clangcheck#GetCommand'),
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})

ale_linters/cpp/clangd.vim

@@ -0,0 +1,22 @@
+" Author: Andrey Melentyev <andrey.melentyev@protonmail.com>
+" Description: Clangd language server
+
+call ale#Set('cpp_clangd_executable', 'clangd')
+call ale#Set('cpp_clangd_options', '')
+call ale#Set('c_build_dir', '')
+
+function! ale_linters#cpp#clangd#GetCommand(buffer) abort
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+
+    return '%e'
+    \    . ale#Pad(ale#Var(a:buffer, 'cpp_clangd_options'))
+    \    . (!empty(l:build_dir) ? ' -compile-commands-dir=' . ale#Escape(l:build_dir) : '')
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'clangd',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'cpp_clangd_executable')},
+\   'command': function('ale_linters#cpp#clangd#GetCommand'),
+\   'project_root': function('ale#c#FindProjectRoot'),
+\})

ale_linters/cpp/clangtidy.vim

@@ -4,45 +4,40 @@
 
 call ale#Set('cpp_clangtidy_executable', 'clang-tidy')
 " Set this option to check the checks clang-tidy will apply.
-call ale#Set('cpp_clangtidy_checks', ['*'])
-" Set this option to manually set some options for clang-tidy.
+call ale#Set('cpp_clangtidy_checks', [])
+" Set this option to manually set some options for clang-tidy to use as compile
+" flags.
 " This will disable compile_commands.json detection.
 call ale#Set('cpp_clangtidy_options', '')
+" Set this option to manually set options for clang-tidy directly.
+call ale#Set('cpp_clangtidy_extra_options', '')
 call ale#Set('c_build_dir', '')
 
-function! ale_linters#cpp#clangtidy#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_clangtidy_executable')
-endfunction
-
-function! s:GetBuildDirectory(buffer) abort
-    " Don't include build directory for header files, as compile_commands.json
-    " files don't consider headers to be translation units, and provide no
-    " commands for compiling header files.
-    if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
-        return ''
-    endif
-
-    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
-
-    " c_build_dir has the priority if defined
-    if !empty(l:build_dir)
-        return l:build_dir
-    endif
-
-    return ale#c#FindCompileCommands(a:buffer)
-endfunction
-
-function! ale_linters#cpp#clangtidy#GetCommand(buffer) abort
+function! ale_linters#cpp#clangtidy#GetCommand(buffer, output) abort
     let l:checks = join(ale#Var(a:buffer, 'cpp_clangtidy_checks'), ',')
-    let l:build_dir = s:GetBuildDirectory(a:buffer)
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+    let l:options = ''
 
     " Get the extra options if we couldn't find a build directory.
-    let l:options = empty(l:build_dir)
-    \   ? ale#Var(a:buffer, 'cpp_clangtidy_options')
-    \   : ''
+    if empty(l:build_dir)
+        let l:options = ale#Var(a:buffer, 'cpp_clangtidy_options')
+        let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+        let l:options .= !empty(l:options) ? ale#Pad(l:cflags) : l:cflags
 
-    return ale#Escape(ale_linters#cpp#clangtidy#GetExecutable(a:buffer))
+        " Tell clang-tidy a .h header with a C++ filetype in Vim is a C++ file
+        " only when compile-commands.json file is not there. Adding these
+        " flags makes clang-tidy completely ignore compile commmands.
+        if expand('#' . a:buffer) =~# '\.h$'
+            let l:options .= !empty(l:options) ? ' -x c++' : '-x c++'
+        endif
+    endif
+
+    " Get the options to pass directly to clang-tidy
+    let l:extra_options = ale#Var(a:buffer, 'cpp_clangtidy_extra_options')
+
+    return '%e'
     \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
+    \   . (!empty(l:extra_options) ? ' ' . ale#Escape(l:extra_options) : '')
     \   . ' %s'
     \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
     \   . (!empty(l:options) ? ' -- ' . l:options : '')
@@ -51,8 +46,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clangtidy',
 \   'output_stream': 'stdout',
-\   'executable_callback': 'ale_linters#cpp#clangtidy#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#clangtidy#GetCommand',
+\   'executable': {b -> ale#Var(b, 'cpp_clangtidy_executable')},
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#clangtidy#GetCommand'))},
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})

ale_linters/cpp/clazy.vim

@@ -0,0 +1,32 @@
+" Description: clazy linter for cpp files (clang-based and Qt-oriented)
+
+call ale#Set('cpp_clazy_executable', 'clazy-standalone')
+" Set this option to check the checks clazy will apply.
+call ale#Set('cpp_clazy_checks', ['level1'])
+" Set this option to manually set some options for clazy.
+" This will disable compile_commands.json detection.
+call ale#Set('cpp_clazy_options', '')
+call ale#Set('c_build_dir', '')
+
+function! ale_linters#cpp#clazy#GetCommand(buffer) abort
+    let l:checks = join(ale#Var(a:buffer, 'cpp_clazy_checks'), ',')
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+
+    " Get the extra options if we couldn't find a build directory.
+    let l:options = ale#Var(a:buffer, 'cpp_clazy_options')
+
+    return '%e'
+    \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
+    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' %s'
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'clazy',
+\   'output_stream': 'stderr',
+\   'executable': {b -> ale#Var(b, 'cpp_clazy_executable')},
+\   'command': function('ale_linters#cpp#clazy#GetCommand'),
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'lint_file': 1,
+\})

ale_linters/cpp/cppcheck.vim

@@ -4,36 +4,26 @@
 call ale#Set('cpp_cppcheck_executable', 'cppcheck')
 call ale#Set('cpp_cppcheck_options', '--enable=style')
 
-function! ale_linters#cpp#cppcheck#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_cppcheck_executable')
-endfunction
-
 function! ale_linters#cpp#cppcheck#GetCommand(buffer) abort
-    " Search upwards from the file for compile_commands.json.
-    "
-    " If we find it, we'll `cd` to where the compile_commands.json file is,
-    " then use the file to set up import paths, etc.
-    let l:compile_commmands_path = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
-
-    let l:cd_command = !empty(l:compile_commmands_path)
-    \   ? ale#path#CdString(fnamemodify(l:compile_commmands_path, ':h'))
-    \   : ''
-    let l:compile_commands_option = !empty(l:compile_commmands_path)
-    \   ? '--project=compile_commands.json '
+    let l:compile_commands_option = ale#handlers#cppcheck#GetCompileCommandsOptions(a:buffer)
+    let l:buffer_path_include = empty(l:compile_commands_option)
+    \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
     \   : ''
+    let l:template = ' --template=' . ale#Escape('{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]\\n{code}')
 
-    return l:cd_command
-    \   . ale#Escape(ale_linters#cpp#cppcheck#GetExecutable(a:buffer))
-    \   . ' -q --language=c++ '
-    \   . l:compile_commands_option
-    \   . ale#Var(a:buffer, 'cpp_cppcheck_options')
+    return '%e -q --language=c++'
+    \   . l:template
+    \   . ale#Pad(l:compile_commands_option)
+    \   . ale#Pad(ale#Var(a:buffer, 'cpp_cppcheck_options'))
+    \   . l:buffer_path_include
     \   . ' %t'
 endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable_callback': 'ale_linters#cpp#cppcheck#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#cppcheck#GetCommand',
+\   'executable': {b -> ale#Var(b, 'cpp_cppcheck_executable')},
+\   'cwd': function('ale#handlers#cppcheck#GetCwd'),
+\   'command': function('ale_linters#cpp#cppcheck#GetCommand'),
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})

ale_linters/cpp/cpplint.vim

@@ -4,23 +4,17 @@
 call ale#Set('cpp_cpplint_executable', 'cpplint')
 call ale#Set('cpp_cpplint_options', '')
 
-function! ale_linters#cpp#cpplint#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_cpplint_executable')
-endfunction
-
 function! ale_linters#cpp#cpplint#GetCommand(buffer) abort
     let l:options = ale#Var(a:buffer, 'cpp_cpplint_options')
 
-    return ale#Escape(ale_linters#cpp#cpplint#GetExecutable(a:buffer))
-    \   . (!empty(l:options) ? ' ' . l:options : '')
-    \   . ' %s'
+    return '%e' . ale#Pad(l:options) . ' %s'
 endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'cpplint',
 \   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#cpp#cpplint#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#cpplint#GetCommand',
+\   'executable': {b -> ale#Var(b, 'cpp_cpplint_executable')},
+\   'command': function('ale_linters#cpp#cpplint#GetCommand'),
 \   'callback': 'ale#handlers#cpplint#HandleCppLintFormat',
 \   'lint_file': 1,
 \})

ale_linters/cpp/cquery.vim

@@ -0,0 +1,30 @@
+" Author: Ben Falconer <ben@falconers.me.uk>
+" Description: A language server for C++
+
+call ale#Set('cpp_cquery_executable', 'cquery')
+call ale#Set('cpp_cquery_cache_directory', expand('~/.cache/cquery'))
+
+function! ale_linters#cpp#cquery#GetProjectRoot(buffer) abort
+    " Try to find cquery configuration files first.
+    let l:config = ale#path#FindNearestFile(a:buffer, '.cquery')
+
+    if !empty(l:config)
+        return fnamemodify(l:config, ':h')
+    endif
+
+    " Fall back on default project root detection.
+    return ale#c#FindProjectRoot(a:buffer)
+endfunction
+
+function! ale_linters#cpp#cquery#GetInitializationOptions(buffer) abort
+    return {'cacheDirectory': ale#Var(a:buffer, 'cpp_cquery_cache_directory')}
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'cquery',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'cpp_cquery_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#cpp#cquery#GetProjectRoot'),
+\   'initialization_options': function('ale_linters#cpp#cquery#GetInitializationOptions'),
+\})

ale_linters/cpp/flawfinder.vim

@@ -6,26 +6,20 @@ call ale#Set('cpp_flawfinder_options', '')
 call ale#Set('cpp_flawfinder_minlevel', 1)
 call ale#Set('c_flawfinder_error_severity', 6)
 
-function! ale_linters#cpp#flawfinder#GetExecutable(buffer) abort
-   return ale#Var(a:buffer, 'cpp_flawfinder_executable')
-endfunction
-
 function! ale_linters#cpp#flawfinder#GetCommand(buffer) abort
+    " Set the minimum vulnerability level for flawfinder to bother with
+    let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'cpp_flawfinder_minlevel')
 
-   " Set the minimum vulnerability level for flawfinder to bother with
-   let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'cpp_flawfinder_minlevel')
-
-   return ale#Escape(ale_linters#cpp#flawfinder#GetExecutable(a:buffer))
-   \  . ' -CDQS'
-   \  . ale#Var(a:buffer, 'cpp_flawfinder_options')
-   \  . l:minlevel
-   \  . ' %t'
+    return '%e -CDQS'
+    \  . ale#Var(a:buffer, 'cpp_flawfinder_options')
+    \  . l:minlevel
+    \  . ' %t'
 endfunction
 
 call ale#linter#Define('cpp', {
 \  'name': 'flawfinder',
 \  'output_stream': 'stdout',
-\  'executable_callback': 'ale_linters#cpp#flawfinder#GetExecutable',
-\  'command_callback': 'ale_linters#cpp#flawfinder#GetCommand',
+\  'executable': {b -> ale#Var(b, 'cpp_flawfinder_executable')},
+\  'command': function('ale_linters#cpp#flawfinder#GetCommand'),
 \  'callback': 'ale#handlers#flawfinder#HandleFlawfinderFormat',
 \})

ale_linters/cpp/gcc.vim

@@ -1,33 +0,0 @@
-" Author: geam <mdelage@student.42.fr>
-" Description: gcc linter for cpp files
-"
-call ale#Set('cpp_gcc_executable', 'gcc')
-call ale#Set('cpp_gcc_options', '-std=c++14 -Wall')
-
-function! ale_linters#cpp#gcc#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cpp_gcc_executable')
-endfunction
-
-function! ale_linters#cpp#gcc#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return ale#Escape(ale_linters#cpp#gcc#GetExecutable(a:buffer))
-    \   . ' -S -x c++ -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . l:cflags
-    \   . ale#Var(a:buffer, 'cpp_gcc_options') . ' -'
-endfunction
-
-call ale#linter#Define('cpp', {
-\   'name': 'gcc',
-\   'aliases': ['g++'],
-\   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#cpp#gcc#GetExecutable',
-\   'command_chain': [
-\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
-\       {'callback': 'ale_linters#cpp#gcc#GetCommand'},
-\   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
-\})

ale_linters/crystal/ameba.vim

@@ -0,0 +1,57 @@
+" Author: Harrison Bachrach - https://github.com/HarrisonB
+" Description: Ameba, a linter for crystal files
+
+call ale#Set('crystal_ameba_executable', 'bin/ameba')
+
+function! ale_linters#crystal#ameba#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'crystal_ameba_executable')
+
+    return ale#Escape(l:executable)
+    \   . ' --format json '
+    \   .  ale#Escape(expand('#' . a:buffer . ':p'))
+endfunction
+
+" Handle output from ameba
+function! ale_linters#crystal#ameba#HandleAmebaOutput(buffer, lines) abort
+    if len(a:lines) == 0
+        return []
+    endif
+
+    let l:errors = ale#util#FuzzyJSONDecode(a:lines[0], {})
+
+    if !has_key(l:errors, 'summary')
+    \|| l:errors['summary']['issues_count'] == 0
+    \|| empty(l:errors['sources'])
+        return []
+    endif
+
+    let l:output = []
+
+    for l:error in l:errors['sources'][0]['issues']
+        let l:start_col = str2nr(l:error['location']['column'])
+        let l:end_col = str2nr(l:error['end_location']['column'])
+
+        if !l:end_col
+            let l:end_col = l:start_col + 1
+        endif
+
+        call add(l:output, {
+        \   'lnum': str2nr(l:error['location']['line']),
+        \   'col': l:start_col,
+        \   'end_col': l:end_col,
+        \   'code': l:error['rule_name'],
+        \   'text': l:error['message'],
+        \   'type': 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('crystal', {
+\   'name': 'ameba',
+\   'executable': {b -> ale#Var(b, 'crystal_ameba_executable')},
+\   'command': function('ale_linters#crystal#ameba#GetCommand'),
+\   'callback': 'ale_linters#crystal#ameba#HandleAmebaOutput',
+\   'lint_file': 1,
+\})

ale_linters/crystal/crystal.vim

@@ -5,6 +5,10 @@ function! ale_linters#crystal#crystal#Handle(buffer, lines) abort
     let l:output = []
 
     for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
+        if !has_key(l:error, 'file')
+            continue
+        endif
+
         call add(l:output, {
         \   'lnum': l:error.line + 0,
         \   'col': l:error.column + 0,
@@ -26,6 +30,6 @@ call ale#linter#Define('crystal', {
 \   'executable': 'crystal',
 \   'output_stream': 'both',
 \   'lint_file': 1,
-\   'command_callback': 'ale_linters#crystal#crystal#GetCommand',
+\   'command': function('ale_linters#crystal#crystal#GetCommand'),
 \   'callback': 'ale_linters#crystal#crystal#Handle',
 \})

ale_linters/cs/csc.vim

@@ -0,0 +1,90 @@
+call ale#Set('cs_csc_options', '')
+call ale#Set('cs_csc_source', '')
+call ale#Set('cs_csc_assembly_path', [])
+call ale#Set('cs_csc_assemblies', [])
+
+function! ale_linters#cs#csc#GetCwd(buffer) abort
+    let l:cwd = ale#Var(a:buffer, 'cs_csc_source')
+
+    return !empty(l:cwd) ? l:cwd : expand('#' . a:buffer . ':p:h')
+endfunction
+
+function! ale_linters#cs#csc#GetCommand(buffer) abort
+    " Pass assembly paths via the -lib: parameter.
+    let l:path_list = ale#Var(a:buffer, 'cs_csc_assembly_path')
+
+    let l:lib_option = !empty(l:path_list)
+    \   ? '/lib:' . join(map(copy(l:path_list), 'ale#Escape(v:val)'), ',')
+    \   : ''
+
+    " Pass paths to DLL files via the -r: parameter.
+    let l:assembly_list = ale#Var(a:buffer, 'cs_csc_assemblies')
+
+    let l:r_option = !empty(l:assembly_list)
+    \   ? '/r:' . join(map(copy(l:assembly_list), 'ale#Escape(v:val)'), ',')
+    \   : ''
+
+    " register temporary module target file with ale
+    " register temporary module target file with ALE.
+    let l:out = ale#command#CreateFile(a:buffer)
+
+    " The code is compiled as a module and the output is redirected to a
+    " temporary file.
+    return 'csc /unsafe'
+    \    . ale#Pad(ale#Var(a:buffer, 'cs_csc_options'))
+    \    . ale#Pad(l:lib_option)
+    \    . ale#Pad(l:r_option)
+    \    . ' /out:' . l:out
+    \    . ' /t:module'
+    \    . ' /recurse:' . ale#Escape('*.cs')
+endfunction
+
+function! ale_linters#cs#csc#Handle(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " Tests.cs(12,29): error CSXXXX: ; expected
+    "
+    " NOTE: pattern also captures file name as linter compiles all
+    " files within the source tree rooted at the specified source
+    " path and not just the file loaded in the buffer
+    let l:patterns = [
+    \    '^\v(.+\.cs)\((\d+),(\d+)\)\:\s+([^ ]+)\s+([cC][sS][^ ]+):\s(.+)$',
+    \    '^\v([^ ]+)\s+([Cc][sS][^ ]+):\s+(.+)$',
+    \]
+    let l:output = []
+    let l:dir = ale_linters#cs#csc#GetCwd(a:buffer)
+
+    for l:match in ale#util#GetMatches(a:lines, l:patterns)
+        if len(l:match) > 6 && strlen(l:match[5]) > 2 && l:match[5][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
+            \   'lnum': l:match[2] + 0,
+            \   'col': l:match[3] + 0,
+            \   'type': l:match[4] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[5],
+            \   'text': l:match[6] ,
+            \})
+        elseif strlen(l:match[2]) > 2 && l:match[2][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename':'<csc>',
+            \   'lnum': -1,
+            \   'col': -1,
+            \   'type': l:match[1] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[2],
+            \   'text': l:match[3],
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cs',{
+\   'name': 'csc',
+\   'output_stream': 'stdout',
+\   'executable': 'csc',
+\   'cwd': function('ale_linters#cs#csc#GetCwd'),
+\   'command': function('ale_linters#cs#csc#GetCommand'),
+\   'callback': 'ale_linters#cs#csc#Handle',
+\   'lint_file': 1
+\})

ale_linters/cs/mcs.vim

@@ -1,7 +1,11 @@
 let g:ale_cs_mcs_options = get(g:, 'ale_cs_mcs_options', '')
 
 function! ale_linters#cs#mcs#GetCommand(buffer) abort
-    return 'mcs -unsafe --parse ' . ale#Var(a:buffer, 'cs_mcs_options') . ' %t'
+    let l:options = ale#Var(a:buffer, 'cs_mcs_options')
+
+    return 'mcs -unsafe --parse'
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' %t'
 endfunction
 
 function! ale_linters#cs#mcs#Handle(buffer, lines) abort
@@ -28,6 +32,6 @@ call ale#linter#Define('cs',{
 \   'name': 'mcs',
 \   'output_stream': 'stderr',
 \   'executable': 'mcs',
-\   'command_callback': 'ale_linters#cs#mcs#GetCommand',
+\   'command': function('ale_linters#cs#mcs#GetCommand'),
 \   'callback': 'ale_linters#cs#mcs#Handle',
 \})

ale_linters/cs/mcsc.vim

@@ -3,14 +3,10 @@ call ale#Set('cs_mcsc_source', '')
 call ale#Set('cs_mcsc_assembly_path', [])
 call ale#Set('cs_mcsc_assemblies', [])
 
-function! s:GetWorkingDirectory(buffer) abort
-    let l:working_directory = ale#Var(a:buffer, 'cs_mcsc_source')
+function! ale_linters#cs#mcsc#GetCwd(buffer) abort
+    let l:cwd = ale#Var(a:buffer, 'cs_mcsc_source')
 
-    if !empty(l:working_directory)
-        return l:working_directory
-    endif
-
-    return expand('#' . a:buffer . ':p:h')
+    return !empty(l:cwd) ? l:cwd : expand('#' . a:buffer . ':p:h')
 endfunction
 
 function! ale_linters#cs#mcsc#GetCommand(buffer) abort
@@ -29,16 +25,15 @@ function! ale_linters#cs#mcsc#GetCommand(buffer) abort
     \   : ''
 
     " register temporary module target file with ale
-    let l:out = tempname()
-    call ale#engine#ManageFile(a:buffer, l:out)
+    " register temporary module target file with ALE.
+    let l:out = ale#command#CreateFile(a:buffer)
 
     " The code is compiled as a module and the output is redirected to a
     " temporary file.
-    return ale#path#CdString(s:GetWorkingDirectory(a:buffer))
-    \    . 'mcs -unsafe'
-    \    . ' ' . ale#Var(a:buffer, 'cs_mcsc_options')
-    \    . ' ' . l:lib_option
-    \    . ' ' . l:r_option
+    return 'mcs -unsafe'
+    \    . ale#Pad(ale#Var(a:buffer, 'cs_mcsc_options'))
+    \    . ale#Pad(l:lib_option)
+    \    . ale#Pad(l:r_option)
     \    . ' -out:' . l:out
     \    . ' -t:module'
     \    . ' -recurse:' . ale#Escape('*.cs')
@@ -52,20 +47,34 @@ function! ale_linters#cs#mcsc#Handle(buffer, lines) abort
     " NOTE: pattern also captures file name as linter compiles all
     " files within the source tree rooted at the specified source
     " path and not just the file loaded in the buffer
-    let l:pattern = '^\v(.+\.cs)\((\d+),(\d+)\)\: ([^ ]+) ([^ ]+): (.+)$'
+    let l:patterns = [
+    \    '^\v(.+\.cs)\((\d+),(\d+)\)\:\s+([^ ]+)\s+([cC][sS][^ ]+):\s(.+)$',
+    \    '^\v([^ ]+)\s+([Cc][sS][^ ]+):\s+(.+)$',
+    \]
     let l:output = []
 
-    let l:dir = s:GetWorkingDirectory(a:buffer)
+    let l:dir = ale_linters#cs#mcsc#GetCwd(a:buffer)
 
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        call add(l:output, {
-        \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
-        \   'lnum': l:match[2] + 0,
-        \   'col': l:match[3] + 0,
-        \   'type': l:match[4] is# 'error' ? 'E' : 'W',
-        \   'code': l:match[5],
-        \   'text': l:match[6],
-        \})
+    for l:match in ale#util#GetMatches(a:lines, l:patterns)
+        if len(l:match) > 6 && strlen(l:match[5]) > 2 && l:match[5][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
+            \   'lnum': l:match[2] + 0,
+            \   'col': l:match[3] + 0,
+            \   'type': l:match[4] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[5],
+            \   'text': l:match[6] ,
+            \})
+        elseif strlen(l:match[2]) > 2 && l:match[2][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename':'<mcs>',
+            \   'lnum': -1,
+            \   'col': -1,
+            \   'type': l:match[1] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[2],
+            \   'text': l:match[3],
+            \})
+        endif
     endfor
 
     return l:output
@@ -75,7 +84,8 @@ call ale#linter#Define('cs',{
 \   'name': 'mcsc',
 \   'output_stream': 'stderr',
 \   'executable': 'mcs',
-\   'command_callback': 'ale_linters#cs#mcsc#GetCommand',
+\   'cwd': function('ale_linters#cs#mcsc#GetCwd'),
+\   'command': function('ale_linters#cs#mcsc#GetCommand'),
 \   'callback': 'ale_linters#cs#mcsc#Handle',
 \   'lint_file': 1
 \})

ale_linters/css/csslint.vim

@@ -13,6 +13,6 @@ endfunction
 call ale#linter#Define('css', {
 \   'name': 'csslint',
 \   'executable': 'csslint',
-\   'command_callback': 'ale_linters#css#csslint#GetCommand',
+\   'command': function('ale_linters#css#csslint#GetCommand'),
 \   'callback': 'ale#handlers#css#HandleCSSLintFormat',
 \})

ale_linters/css/fecs.vim

@@ -0,0 +1,9 @@
+" Author: harttle <yangjvn@126.com>
+" Description: fecs for CSS files
+
+call ale#linter#Define('css', {
+\   'name': 'fecs',
+\   'executable': function('ale#handlers#fecs#GetExecutable'),
+\   'command': function('ale#handlers#fecs#GetCommand'),
+\   'callback': 'ale#handlers#fecs#Handle',
+\})

ale_linters/css/stylelint.vim

@@ -4,21 +4,16 @@ call ale#Set('css_stylelint_executable', 'stylelint')
 call ale#Set('css_stylelint_options', '')
 call ale#Set('css_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
-function! ale_linters#css#stylelint#GetExecutable(buffer) abort
-    return ale#node#FindExecutable(a:buffer, 'css_stylelint', [
-    \   'node_modules/.bin/stylelint',
-    \])
-endfunction
-
 function! ale_linters#css#stylelint#GetCommand(buffer) abort
-    return ale_linters#css#stylelint#GetExecutable(a:buffer)
-    \   . ' ' . ale#Var(a:buffer, 'css_stylelint_options')
+    return '%e ' . ale#Pad(ale#Var(a:buffer, 'css_stylelint_options'))
     \   . ' --stdin-filename %s'
 endfunction
 
 call ale#linter#Define('css', {
 \   'name': 'stylelint',
-\   'executable_callback': 'ale_linters#css#stylelint#GetExecutable',
-\   'command_callback': 'ale_linters#css#stylelint#GetCommand',
+\   'executable': {b -> ale#node#FindExecutable(b, 'css_stylelint', [
+\       'node_modules/.bin/stylelint',
+\   ])},
+\   'command': function('ale_linters#css#stylelint#GetCommand'),
 \   'callback': 'ale#handlers#css#HandleStyleLintFormat',
 \})

ale_linters/cucumber/cucumber.vim

@@ -22,6 +22,7 @@ function! ale_linters#cucumber#cucumber#Handle(buffer, lines) abort
     endtry
 
     let l:output = []
+
     for l:element in get(l:json, 'elements', [])
         for l:step in l:element['steps']
             if l:step['result']['status'] is# 'undefined'
@@ -40,6 +41,6 @@ endfunction
 call ale#linter#Define('cucumber', {
 \   'name': 'cucumber',
 \   'executable': 'cucumber',
-\   'command_callback': 'ale_linters#cucumber#cucumber#GetCommand',
+\   'command': function('ale_linters#cucumber#cucumber#GetCommand'),
 \   'callback': 'ale_linters#cucumber#cucumber#Handle'
 \})

ale_linters/cuda/nvcc.vim

@@ -4,20 +4,11 @@
 call ale#Set('cuda_nvcc_executable', 'nvcc')
 call ale#Set('cuda_nvcc_options', '-std=c++11')
 
-function! ale_linters#cuda#nvcc#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'cuda_nvcc_executable')
-endfunction
-
 function! ale_linters#cuda#nvcc#GetCommand(buffer) abort
-    " Unused: use ale#util#nul_file
-    " let l:output_file = tempname() . '.ii'
-    " call ale#engine#ManageFile(a:buffer, l:output_file)
-
-    return ale#Escape(ale_linters#cuda#nvcc#GetExecutable(a:buffer))
-    \   . ' -cuda '
-    \   . ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer))
-    \   . ale#Var(a:buffer, 'cuda_nvcc_options') . ' %s'
-    \   . ' -o ' . g:ale#util#nul_file
+    return '%e -cuda'
+    \   . ale#Pad(ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer)))
+    \   . ale#Pad(ale#Var(a:buffer, 'cuda_nvcc_options'))
+    \   . ' %s -o ' . g:ale#util#nul_file
 endfunction
 
 function! ale_linters#cuda#nvcc#HandleNVCCFormat(buffer, lines) abort
@@ -28,7 +19,6 @@ function! ale_linters#cuda#nvcc#HandleNVCCFormat(buffer, lines) abort
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-
         let l:item = {
         \   'lnum': str2nr(l:match[2]),
         \   'type': l:match[4] =~# 'error' ? 'E' : 'W',
@@ -49,8 +39,8 @@ endfunction
 call ale#linter#Define('cuda', {
 \   'name': 'nvcc',
 \   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#cuda#nvcc#GetExecutable',
-\   'command_callback': 'ale_linters#cuda#nvcc#GetCommand',
+\   'executable': {b -> ale#Var(b, 'cuda_nvcc_executable')},
+\   'command': function('ale_linters#cuda#nvcc#GetCommand'),
 \   'callback': 'ale_linters#cuda#nvcc#HandleNVCCFormat',
 \   'lint_file': 1,
 \})

ale_linters/cypher/cypher_lint.vim

@@ -0,0 +1,26 @@
+" Author: Francisco Lopes <francisco@oblita.com>
+" Description: Linting for Neo4j's Cypher
+
+function! ale_linters#cypher#cypher_lint#Handle(buffer, lines) abort
+    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+): (.*)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:match[4],
+        \   'type': 'E',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cypher', {
+\   'name': 'cypher_lint',
+\   'executable': 'cypher-lint',
+\   'command': 'cypher-lint',
+\   'output_stream': 'stderr',
+\   'callback': 'ale_linters#cypher#cypher_lint#Handle',
+\})

ale_linters/d/dls.vim

@@ -0,0 +1,22 @@
+" Author: aurieh <me@aurieh.me>
+" Description: A Language Server implementation for D
+
+call ale#Set('d_dls_executable', 'dls')
+
+function! ale_linters#d#dls#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'd_dls_executable')
+endfunction
+
+function! ale_linters#d#dls#FindProjectRoot(buffer) abort
+    " Note: this will return . if dub config is empty
+    " dls can run outside DUB projects just fine
+    return fnamemodify(ale#d#FindDUBConfig(a:buffer), ':h')
+endfunction
+
+call ale#linter#Define('d', {
+\   'name': 'dls',
+\   'lsp': 'stdio',
+\   'executable': function('ale_linters#d#dls#GetExecutable'),
+\   'command': function('ale_linters#d#dls#GetExecutable'),
+\   'project_root': function('ale_linters#d#dls#FindProjectRoot'),
+\})

ale_linters/d/dmd.vim

@@ -1,41 +1,40 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: "dmd for D files"
 
-function! s:FindDUBConfig(buffer) abort
-    " Find a DUB configuration file in ancestor paths.
-    " The most DUB-specific names will be tried first.
-    for l:possible_filename in ['dub.sdl', 'dub.json', 'package.json']
-        let l:dub_file = ale#path#FindNearestFile(a:buffer, l:possible_filename)
-
-        if !empty(l:dub_file)
-            return l:dub_file
-        endif
-    endfor
-
-    return ''
-endfunction
-
-function! ale_linters#d#dmd#DUBCommand(buffer) abort
+function! s:GetDUBCommand(buffer) abort
     " If we can't run dub, then skip this command.
-    if !executable('dub')
+    if executable('dub')
         " Returning an empty string skips to the DMD command.
-        return ''
+        let l:config = ale#d#FindDUBConfig(a:buffer)
+
+        " To support older dub versions, we just change the directory to the
+        " directory where we found the dub config, and then run `dub describe`
+        " from that directory.
+        if !empty(l:config)
+            return [fnamemodify(l:config, ':h'), 'dub describe --import-paths']
+        endif
     endif
 
-    let l:dub_file = s:FindDUBConfig(a:buffer)
-
-    if empty(l:dub_file)
-        return ''
-    endif
-
-    " To support older dub versions, we just change the directory to
-    " the directory where we found the dub config, and then run `dub describe`
-    " from that directory.
-    return 'cd ' . ale#Escape(fnamemodify(l:dub_file, ':h'))
-    \   . ' && dub describe --import-paths'
+    return ['', '']
 endfunction
 
-function! ale_linters#d#dmd#DMDCommand(buffer, dub_output) abort
+function! ale_linters#d#dmd#RunDUBCommand(buffer) abort
+    let [l:cwd, l:command] = s:GetDUBCommand(a:buffer)
+
+    if empty(l:command)
+        " If we can't run DUB, just run DMD.
+        return ale_linters#d#dmd#DMDCommand(a:buffer, [], {})
+    endif
+
+    return ale#command#Run(
+    \   a:buffer,
+    \   l:command,
+    \   function('ale_linters#d#dmd#DMDCommand'),
+    \   {'cwd': l:cwd},
+    \)
+endfunction
+
+function! ale_linters#d#dmd#DMDCommand(buffer, dub_output, meta) abort
     let l:import_list = []
 
     " Build a list of import paths generated from DUB, if available.
@@ -71,9 +70,7 @@ endfunction
 call ale#linter#Define('d', {
 \   'name': 'dmd',
 \   'executable': 'dmd',
-\   'command_chain': [
-\       {'callback': 'ale_linters#d#dmd#DUBCommand', 'output_stream': 'stdout'},
-\       {'callback': 'ale_linters#d#dmd#DMDCommand', 'output_stream': 'stderr'},
-\   ],
+\   'command': function('ale_linters#d#dmd#RunDUBCommand'),
 \   'callback': 'ale_linters#d#dmd#Handle',
+\   'output_stream': 'stderr',
 \})

ale_linters/dafny/dafny.vim

@@ -6,20 +6,36 @@ function! ale_linters#dafny#dafny#Handle(buffer, lines) abort
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
-        \    'bufnr': a:buffer,
+        \    'filename': l:match[1],
         \    'col': l:match[3] + 0,
         \    'lnum': l:match[2] + 0,
         \    'text': l:match[5],
         \    'type': l:match[4] =~# '^Error' ? 'E' : 'W'
         \ })
     endfor
+
+    for l:match in ale#util#GetMatches(a:lines, '\v(.*)\((\d+),(\d+)\): (Verification of .{-} timed out after \d+ seconds)')
+        call add(l:output, {
+        \     'filename': l:match[1],
+        \     'col': l:match[3] + 0,
+        \     'lnum': l:match[2] + 0,
+        \     'text': l:match[4],
+        \     'type': 'E',
+        \ })
+    endfor
+
     return l:output
 endfunction
 
+function! ale_linters#dafny#dafny#GetCommand(buffer) abort
+    return printf('dafny %%s /compile:0 /timeLimit:%d', ale#Var(a:buffer, 'dafny_dafny_timelimit'))
+endfunction
+
+call ale#Set('dafny_dafny_timelimit', 10)
 call ale#linter#Define('dafny', {
 \    'name': 'dafny',
 \    'executable': 'dafny',
-\    'command': 'dafny %s /compile:0',
+\    'command': function('ale_linters#dafny#dafny#GetCommand'),
 \    'callback': 'ale_linters#dafny#dafny#Handle',
 \    'lint_file': 1,
 \ })

ale_linters/dart/analysis_server.vim

@@ -0,0 +1,29 @@
+" Author: Nelson Yeung <nelsyeung@gmail.com>
+" Description: Check Dart files with dart analysis server LSP
+
+call ale#Set('dart_analysis_server_executable', 'dart')
+
+function! ale_linters#dart#analysis_server#GetProjectRoot(buffer) abort
+    " Note: pub only looks for pubspec.yaml, there's no point in adding
+    " support for pubspec.yml
+    let l:pubspec = ale#path#FindNearestFile(a:buffer, 'pubspec.yaml')
+
+    return !empty(l:pubspec) ? fnamemodify(l:pubspec, ':h:h') : '.'
+endfunction
+
+function! ale_linters#dart#analysis_server#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'dart_analysis_server_executable')
+    let l:dart = resolve(exepath(l:executable))
+
+    return '%e '
+    \   . fnamemodify(l:dart, ':h') . '/snapshots/analysis_server.dart.snapshot'
+    \   . ' --lsp'
+endfunction
+
+call ale#linter#Define('dart', {
+\   'name': 'analysis_server',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'dart_analysis_server_executable')},
+\   'command': function('ale_linters#dart#analysis_server#GetCommand'),
+\   'project_root': function('ale_linters#dart#analysis_server#GetProjectRoot'),
+\})

ale_linters/dart/dartanalyzer.vim

@@ -3,15 +3,10 @@
 
 call ale#Set('dart_dartanalyzer_executable', 'dartanalyzer')
 
-function! ale_linters#dart#dartanalyzer#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'dart_dartanalyzer_executable')
-endfunction
-
 function! ale_linters#dart#dartanalyzer#GetCommand(buffer) abort
-    let l:executable = ale_linters#dart#dartanalyzer#GetExecutable(a:buffer)
     let l:path = ale#path#FindNearestFile(a:buffer, '.packages')
 
-    return ale#Escape(l:executable)
+    return '%e'
     \   . (!empty(l:path) ? ' --packages ' . ale#Escape(l:path) : '')
     \   . ' %s'
 endfunction
@@ -34,8 +29,8 @@ endfunction
 
 call ale#linter#Define('dart', {
 \   'name': 'dartanalyzer',
-\   'executable_callback': 'ale_linters#dart#dartanalyzer#GetExecutable',
-\   'command_callback': 'ale_linters#dart#dartanalyzer#GetCommand',
+\   'executable': {b -> ale#Var(b, 'dart_dartanalyzer_executable')},
+\   'command': function('ale_linters#dart#dartanalyzer#GetCommand'),
 \   'callback': 'ale_linters#dart#dartanalyzer#Handle',
 \   'lint_file': 1,
 \})

ale_linters/dart/language_server.vim

@@ -3,10 +3,6 @@
 
 call ale#Set('dart_language_server_executable', 'dart_language_server')
 
-function! ale_linters#dart#language_server#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'dart_language_server_executable')
-endfunction
-
 function! ale_linters#dart#language_server#GetProjectRoot(buffer) abort
     " Note: pub only looks for pubspec.yaml, there's no point in adding
     " support for pubspec.yml
@@ -18,8 +14,7 @@ endfunction
 call ale#linter#Define('dart', {
 \   'name': 'language_server',
 \   'lsp': 'stdio',
-\   'executable_callback': 'ale_linters#dart#language_server#GetExecutable',
-\   'command_callback': 'ale_linters#dart#language_server#GetExecutable',
-\   'language': 'dart',
-\   'project_root_callback': 'ale_linters#dart#language_server#GetProjectRoot',
+\   'executable': {b -> ale#Var(b, 'dart_language_server_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#dart#language_server#GetProjectRoot'),
 \})

ale_linters/dockerfile/dockerfile_lint.vim

@@ -0,0 +1,76 @@
+" Author: Alexander Olofsson <alexander.olofsson@liu.se>
+
+call ale#Set('dockerfile_dockerfile_lint_executable', 'dockerfile_lint')
+call ale#Set('dockerfile_dockerfile_lint_options', '')
+
+function! ale_linters#dockerfile#dockerfile_lint#GetType(type) abort
+    if a:type is? 'error'
+        return 'E'
+    elseif a:type is? 'warn'
+        return 'W'
+    endif
+
+    return 'I'
+endfunction
+
+function! ale_linters#dockerfile#dockerfile_lint#Handle(buffer, lines) abort
+    try
+        let l:data = json_decode(join(a:lines, ''))
+    catch
+        return []
+    endtry
+
+    if empty(l:data)
+        " Should never happen, but it's better to be on the safe side
+        return []
+    endif
+
+    let l:messages = []
+
+    for l:type in ['error', 'warn', 'info']
+        for l:object in l:data[l:type]['data']
+            let l:line = get(l:object, 'line', -1)
+            let l:message = l:object['message']
+
+            let l:link = get(l:object, 'reference_url', '')
+
+            if type(l:link) == v:t_list
+                " Somehow, reference_url is returned as two-part list.
+                " Anchor markers in that list are sometimes duplicated.
+                " See https://github.com/projectatomic/dockerfile_lint/issues/134
+                let l:link = join(l:link, '')
+                let l:link = substitute(l:link, '##', '#', '')
+            endif
+
+            let l:detail = l:message
+
+            if get(l:object, 'description', 'None') isnot# 'None'
+                let l:detail .= "\n\n" . l:object['description']
+            endif
+
+            let l:detail .= "\n\n" . l:link
+
+            call add(l:messages, {
+            \   'lnum': l:line,
+            \   'text': l:message,
+            \   'type': ale_linters#dockerfile#dockerfile_lint#GetType(l:type),
+            \   'detail': l:detail,
+            \})
+        endfor
+    endfor
+
+    return l:messages
+endfunction
+
+function! ale_linters#dockerfile#dockerfile_lint#GetCommand(buffer) abort
+    return '%e' . ale#Pad(ale#Var(a:buffer, 'dockerfile_dockerfile_lint_options'))
+    \   . ' -p -j -f'
+    \   . ' %t'
+endfunction
+
+call ale#linter#Define('dockerfile', {
+\   'name': 'dockerfile_lint',
+\   'executable': {b -> ale#Var(b, 'dockerfile_dockerfile_lint_executable')},
+\   'command': function('ale_linters#dockerfile#dockerfile_lint#GetCommand'),
+\   'callback': 'ale_linters#dockerfile#dockerfile_lint#Handle',
+\})

ale_linters/dockerfile/hadolint.vim

@@ -9,7 +9,7 @@ function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
     "
     " /dev/stdin:19 DL3001 Pipe chain should start with a raw value.
     " /dev/stdin:19:3 unexpected thing
-    let l:pattern = '\v^/dev/stdin:(\d+):?(\d+)? ((DL|SC)(\d+) )?(.+)$'
+    let l:pattern = '\v^/dev/stdin:(\d+):?(\d+)? ((DL|SC)(\d+) )?((.+)?: )?(.+)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
@@ -24,9 +24,19 @@ function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
             let l:colnum = l:match[2] + 0
         endif
 
-        let l:type = 'W'
-        let l:text = l:match[6]
-        let l:detail = l:match[6]
+        " Shellcheck knows a 'style' severity - pin it to info level as well.
+        if l:match[7] is# 'style'
+            let l:type = 'I'
+        elseif l:match[7] is# 'info'
+            let l:type = 'I'
+        elseif l:match[7] is# 'warning'
+            let l:type = 'W'
+        else
+            let l:type = 'E'
+        endif
+
+        let l:text = l:match[8]
+        let l:detail = l:match[8]
         let l:domain = 'https://github.com/hadolint/hadolint/wiki/'
 
         if l:match[4] is# 'SC'
@@ -82,16 +92,18 @@ endfunction
 
 function! ale_linters#dockerfile#hadolint#GetCommand(buffer) abort
     let l:command = ale_linters#dockerfile#hadolint#GetExecutable(a:buffer)
+
     if l:command is# 'docker'
         return 'docker run --rm -i ' . ale#Var(a:buffer, 'dockerfile_hadolint_docker_image')
     endif
+
     return 'hadolint -'
 endfunction
 
 
 call ale#linter#Define('dockerfile', {
 \   'name': 'hadolint',
-\   'executable_callback': 'ale_linters#dockerfile#hadolint#GetExecutable',
-\   'command_callback': 'ale_linters#dockerfile#hadolint#GetCommand',
+\   'executable': function('ale_linters#dockerfile#hadolint#GetExecutable'),
+\   'command': function('ale_linters#dockerfile#hadolint#GetCommand'),
 \   'callback': 'ale_linters#dockerfile#hadolint#Handle',
 \})

ale_linters/elixir/credo.vim

@@ -11,10 +11,18 @@ function! ale_linters#elixir#credo#Handle(buffer, lines) abort
         let l:type = l:match[3]
         let l:text = l:match[4]
 
-        if l:type is# 'C'
-            let l:type = 'E'
-        elseif l:type is# 'R'
+        " Refactoring opportunities
+        if l:type is# 'F'
             let l:type = 'W'
+        " Consistency
+        elseif l:type is# 'C'
+            let l:type = 'W'
+        " Software Design
+        elseif l:type is# 'D'
+            let l:type = 'I'
+        " Code Readability
+        elseif l:type is# 'R'
+            let l:type = 'I'
         endif
 
         call add(l:output, {
@@ -29,9 +37,35 @@ function! ale_linters#elixir#credo#Handle(buffer, lines) abort
     return l:output
 endfunction
 
+function! ale_linters#elixir#credo#GetMode() abort
+    if get(g:, 'ale_elixir_credo_strict', 0)
+        return '--strict'
+    else
+        return 'suggest'
+    endif
+endfunction
+
+function! ale_linters#elixir#credo#GetConfigFile() abort
+    let l:config_file = get(g:, 'ale_elixir_credo_config_file', '')
+
+    if empty(l:config_file)
+        return ''
+    endif
+
+    return ' --config-file ' . l:config_file
+endfunction
+
+function! ale_linters#elixir#credo#GetCommand(buffer) abort
+    return 'mix help credo && '
+    \ . 'mix credo ' . ale_linters#elixir#credo#GetMode()
+    \ . ale_linters#elixir#credo#GetConfigFile()
+    \ . ' --format=flycheck --read-from-stdin %s'
+endfunction
+
 call ale#linter#Define('elixir', {
 \   'name': 'credo',
 \   'executable': 'mix',
-\   'command': 'mix help credo && mix credo suggest --format=flycheck --read-from-stdin %s',
+\   'cwd': function('ale#handlers#elixir#FindMixUmbrellaRoot'),
+\   'command': function('ale_linters#elixir#credo#GetCommand'),
 \   'callback': 'ale_linters#elixir#credo#Handle',
 \})

ale_linters/elixir/dialyxir.vim

@@ -28,7 +28,7 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'dialyxir',
 \   'executable': 'mix',
-\   'command': 'mix dialyzer',
+\   'cwd': function('ale#handlers#elixir#FindMixProjectRoot'),
+\   'command': 'mix help dialyzer && mix dialyzer',
 \   'callback': 'ale_linters#elixir#dialyxir#Handle',
 \})
-

ale_linters/elixir/dogma.vim

@@ -32,6 +32,7 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'dogma',
 \   'executable': 'mix',
+\   'cwd': function('ale#handlers#elixir#FindMixProjectRoot'),
 \   'command': 'mix help dogma && mix dogma %s --format=flycheck',
 \   'lint_file': 1,
 \   'callback': 'ale_linters#elixir#dogma#Handle',

ale_linters/elixir/elixir_ls.vim

@@ -0,0 +1,21 @@
+" Author: Jon Parise <jon@indelible.org>
+" Description: ElixirLS integration (https://github.com/JakeBecker/elixir-ls)
+
+call ale#Set('elixir_elixir_ls_release', 'elixir-ls')
+call ale#Set('elixir_elixir_ls_config', {})
+
+function! ale_linters#elixir#elixir_ls#GetExecutable(buffer) abort
+    let l:dir = ale#path#Simplify(ale#Var(a:buffer, 'elixir_elixir_ls_release'))
+    let l:cmd = has('win32') ? '\language_server.bat' : '/language_server.sh'
+
+    return l:dir . l:cmd
+endfunction
+
+call ale#linter#Define('elixir', {
+\   'name': 'elixir-ls',
+\   'lsp': 'stdio',
+\   'executable': function('ale_linters#elixir#elixir_ls#GetExecutable'),
+\   'command': function('ale_linters#elixir#elixir_ls#GetExecutable'),
+\   'project_root': function('ale#handlers#elixir#FindMixUmbrellaRoot'),
+\   'lsp_config': {b -> ale#Var(b, 'elixir_elixir_ls_config')},
+\})

ale_linters/elixir/mix.vim

@@ -0,0 +1,45 @@
+" Author: evnu - https://github.com/evnu
+" Author: colbydehart - https://github.com/colbydehart
+" Description: Mix compile checking for Elixir files
+
+function! ale_linters#elixir#mix#Handle(buffer, lines) abort
+    " Matches patterns like the following:
+    "
+    " Error format
+    " ** (CompileError) apps/sim/lib/sim/server.ex:87: undefined function update_in/4
+    "
+    " TODO: Warning format
+    " warning: variable "foobar" does not exist and is being expanded to "foobar()", please use parentheses to remove the ambiguity or change the variable name
+    let l:pattern = '\v\(([^\)]+Error)\) ([^:]+):([^:]+): (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:type = 'E'
+        let l:text = l:match[4]
+
+        call add(l:output, {
+        \   'bufnr': a:buffer,
+        \   'lnum': l:match[3] + 0,
+        \   'col': 0,
+        \   'type': l:type,
+        \   'text': l:text,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#elixir#mix#GetCommand(buffer) abort
+    let l:temp_dir = ale#command#CreateDirectory(a:buffer)
+
+    return ale#Env('MIX_BUILD_PATH', l:temp_dir) . 'mix compile %s'
+endfunction
+
+call ale#linter#Define('elixir', {
+\   'name': 'mix',
+\   'executable': 'mix',
+\   'cwd': function('ale#handlers#elixir#FindMixProjectRoot'),
+\   'command': function('ale_linters#elixir#mix#GetCommand'),
+\   'callback': 'ale_linters#elixir#mix#Handle',
+\   'lint_file': 1,
+\})

ale_linters/elm/elm_ls.vim

@@ -0,0 +1,40 @@
+" Author: antew - https://github.com/antew
+" Description: elm-language-server integration for elm (diagnostics, formatting, and more)
+
+call ale#Set('elm_ls_executable', 'elm-language-server')
+call ale#Set('elm_ls_use_global', get(g:, 'ale_use_global_executables', 1))
+
+" elm-language-server will search for local and global binaries, if empty
+call ale#Set('elm_ls_elm_path', '')
+call ale#Set('elm_ls_elm_format_path', '')
+call ale#Set('elm_ls_elm_test_path', '')
+call ale#Set('elm_ls_elm_analyse_trigger', 'change')
+
+function! elm_ls#GetRootDir(buffer) abort
+    let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')
+
+    return !empty(l:elm_json) ? fnamemodify(l:elm_json, ':p:h') : ''
+endfunction
+
+function! elm_ls#GetOptions(buffer) abort
+    return {
+    \   'elmPath': ale#Var(a:buffer, 'elm_ls_elm_path'),
+    \   'elmFormatPath': ale#Var(a:buffer, 'elm_ls_elm_format_path'),
+    \   'elmTestPath': ale#Var(a:buffer, 'elm_ls_elm_test_path'),
+    \   'elmAnalyseTrigger': ale#Var(a:buffer, 'elm_ls_elm_analyse_trigger'),
+    \}
+endfunction
+
+call ale#linter#Define('elm', {
+\   'name': 'elm_ls',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#node#FindExecutable(b, 'elm_ls', [
+\       'node_modules/.bin/elm-language-server',
+\       'node_modules/.bin/elm-lsp',
+\       'elm-lsp'
+\   ])},
+\   'command': '%e --stdio',
+\   'project_root': function('elm_ls#GetRootDir'),
+\   'language': 'elm',
+\   'initialization_options': function('elm_ls#GetOptions')
+\})

ale_linters/elm/make.vim

@@ -4,12 +4,6 @@
 call ale#Set('elm_make_executable', 'elm')
 call ale#Set('elm_make_use_global', get(g:, 'ale_use_global_executables', 0))
 
-function! ale_linters#elm#make#GetExecutable(buffer) abort
-    return ale#node#FindExecutable(a:buffer, 'elm_make', [
-    \   'node_modules/.bin/elm',
-    \])
-endfunction
-
 function! ale_linters#elm#make#Handle(buffer, lines) abort
     let l:output = []
     let l:unparsed_lines = []
@@ -128,14 +122,7 @@ function! ale_linters#elm#make#HandleElm018Line(line, output) abort
 endfunction
 
 function! ale_linters#elm#make#FileIsBuffer(path) abort
-    let l:is_windows = has('win32')
-    let l:temp_dir = l:is_windows ? $TMP : $TMPDIR
-
-    if has('win32')
-        return a:path[0:len(l:temp_dir) - 1] is? l:temp_dir
-    else
-        return a:path[0:len(l:temp_dir) - 1] is# l:temp_dir
-    endif
+    return ale#path#IsTempName(a:path)
 endfunction
 
 function! ale_linters#elm#make#ParseMessage(message) abort
@@ -143,47 +130,113 @@ function! ale_linters#elm#make#ParseMessage(message) abort
 endfunction
 
 function! ale_linters#elm#make#ParseMessageItem(item) abort
-    if type(a:item) == type('')
+    if type(a:item) is v:t_string
         return a:item
     else
         return a:item.string
     endif
 endfunction
 
-" Return the command to execute the linter in the projects directory.
-" If it doesn't, then this will fail when imports are needed.
-function! ale_linters#elm#make#GetCommand(buffer) abort
+function! ale_linters#elm#make#GetPackageFile(buffer) abort
     let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')
-    let l:elm_exe = ale_linters#elm#make#GetExecutable(a:buffer)
 
     if empty(l:elm_json)
         " Fallback to Elm 0.18
         let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm-package.json')
     endif
 
-    if empty(l:elm_json)
-        let l:dir_set_cmd = ''
+    return l:elm_json
+endfunction
+
+function! ale_linters#elm#make#IsVersionGte19(buffer) abort
+    let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
+
+    if l:elm_json =~# '-package'
+        return 0
     else
-        let l:root_dir = fnamemodify(l:elm_json, ':p:h')
-        let l:dir_set_cmd = 'cd ' . ale#Escape(l:root_dir) . ' && '
+        return 1
+    endif
+endfunction
+
+function! ale_linters#elm#make#GetRootDir(buffer) abort
+    let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
+
+    if empty(l:elm_json)
+        return ''
+    else
+        return fnamemodify(l:elm_json, ':p:h')
+    endif
+endfunction
+
+function! ale_linters#elm#make#IsTest(buffer) abort
+    let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
+
+    if empty(l:root_dir)
+        return 0
+    endif
+
+    let l:tests_dir = join([l:root_dir, 'tests', ''], has('win32') ? '\' : '/')
+
+    let l:buffer_path = fnamemodify(bufname(a:buffer), ':p')
+
+    if stridx(l:buffer_path, l:tests_dir) == 0
+        return 1
+    else
+        return 0
+    endif
+endfunction
+
+function! ale_linters#elm#make#GetCwd(buffer) abort
+    let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
+
+    return !empty(l:root_dir) ? l:root_dir : ''
+endfunction
+
+" Return the command to execute the linter in the projects directory.
+" If it doesn't, then this will fail when imports are needed.
+function! ale_linters#elm#make#GetCommand(buffer) abort
+    let l:executable = ale_linters#elm#make#GetExecutable(a:buffer)
+    let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
+    let l:is_using_elm_test = l:executable =~# 'elm-test$'
+
+    " elm-test needs to know the path of elm-make if elm isn't installed globally.
+    " https://github.com/rtfeldman/node-test-runner/blob/57728f10668f2d2ab3179e7e3208bcfa9a1f19aa/README.md#--compiler
+    if l:is_v19 && l:is_using_elm_test
+        let l:elm_make_executable = ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
+        let l:elm_test_compiler_flag = ' --compiler ' . l:elm_make_executable . ' '
+    else
+        let l:elm_test_compiler_flag = ' '
     endif
 
     " The elm compiler, at the time of this writing, uses '/dev/null' as
     " a sort of flag to tell the compiler not to generate an output file,
     " which is why this is hard coded here.
     " Source: https://github.com/elm-lang/elm-compiler/blob/19d5a769b30ec0b2fc4475985abb4cd94cd1d6c3/builder/src/Generate/Output.hs#L253
-    let l:elm_cmd = ale#Escape(l:elm_exe)
-    \   . ' make'
-    \   . ' --report=json'
-    \   . ' --output=/dev/null'
+    return '%e make --report=json --output=/dev/null'
+    \   . l:elm_test_compiler_flag
+    \   . '%t'
+endfunction
 
-    return l:dir_set_cmd . ' ' . l:elm_cmd . ' %t'
+function! ale_linters#elm#make#GetExecutable(buffer) abort
+    let l:is_test = ale_linters#elm#make#IsTest(a:buffer)
+    let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
+
+    if l:is_test && l:is_v19
+        return ale#node#FindExecutable(
+        \   a:buffer,
+        \   'elm_make',
+        \   ['node_modules/.bin/elm-test', 'node_modules/.bin/elm']
+        \)
+    else
+        return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
+    endif
 endfunction
 
 call ale#linter#Define('elm', {
-\    'name': 'make',
-\    'executable_callback': 'ale_linters#elm#make#GetExecutable',
-\    'output_stream': 'both',
-\    'command_callback': 'ale_linters#elm#make#GetCommand',
-\    'callback': 'ale_linters#elm#make#Handle'
+\   'name': 'make',
+\   'executable': function('ale_linters#elm#make#GetExecutable'),
+\   'output_stream': 'both',
+\   'cwd': function('ale_linters#elm#make#GetCwd'),
+\   'command': function('ale_linters#elm#make#GetCommand'),
+\   'callback': 'ale_linters#elm#make#Handle'
 \})

ale_linters/erlang/dialyzer.vim

@@ -0,0 +1,97 @@
+" Author: Autoine Gagne - https://github.com/AntoineGagne
+" Description: Define a checker that runs dialyzer on Erlang files.
+
+let g:ale_erlang_dialyzer_executable =
+\   get(g:, 'ale_erlang_dialyzer_executable', 'dialyzer')
+let g:ale_erlang_dialyzer_options =
+\   get(g:, 'ale_erlang_dialyzer_options', '-Wunmatched_returns'
+\                                        . ' -Werror_handling'
+\                                        . ' -Wrace_conditions'
+\                                        . ' -Wunderspecs')
+let g:ale_erlang_dialyzer_plt_file =
+\   get(g:, 'ale_erlang_dialyzer_plt_file', '')
+let g:ale_erlang_dialyzer_rebar3_profile =
+\   get(g:, 'ale_erlang_dialyzer_rebar3_profile', 'default')
+
+function! ale_linters#erlang#dialyzer#GetRebar3Profile(buffer) abort
+    return ale#Var(a:buffer, 'erlang_dialyzer_rebar3_profile')
+endfunction
+
+function! ale_linters#erlang#dialyzer#FindPlt(buffer) abort
+    let l:plt_file = ''
+    let l:rebar3_profile = ale_linters#erlang#dialyzer#GetRebar3Profile(a:buffer)
+    let l:plt_file_directory = ale#path#FindNearestDirectory(a:buffer, '_build/' . l:rebar3_profile)
+
+    if !empty(l:plt_file_directory)
+        let l:plt_file = globpath(l:plt_file_directory, '*_plt', 0, 1)
+    endif
+
+    if !empty(l:plt_file)
+        return l:plt_file[0]
+    endif
+
+    if !empty($REBAR_PLT_DIR)
+        return expand('$REBAR_PLT_DIR/dialyzer/plt')
+    endif
+
+    return expand('$HOME/.dialyzer_plt')
+endfunction
+
+function! ale_linters#erlang#dialyzer#GetPlt(buffer) abort
+    let l:plt_file = ale#Var(a:buffer, 'erlang_dialyzer_plt_file')
+
+    if !empty(l:plt_file)
+        return l:plt_file
+    endif
+
+    return ale_linters#erlang#dialyzer#FindPlt(a:buffer)
+endfunction
+
+function! ale_linters#erlang#dialyzer#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'erlang_dialyzer_executable')
+endfunction
+
+function! ale_linters#erlang#dialyzer#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'erlang_dialyzer_options')
+
+    let l:command = ale#Escape(ale_linters#erlang#dialyzer#GetExecutable(a:buffer))
+    \   . ' -n'
+    \   . ' --plt ' . ale#Escape(ale_linters#erlang#dialyzer#GetPlt(a:buffer))
+    \   . ' ' . l:options
+    \   . ' %s'
+
+    return l:command
+endfunction
+
+function! ale_linters#erlang#dialyzer#Handle(buffer, lines) abort
+    " Match patterns like the following:
+    "
+    " erl_tidy_prv_fmt.erl:3: Callback info about the provider behaviour is not available
+    let l:pattern = '^\S\+:\(\d\+\): \(.\+\)$'
+    let l:output = []
+
+    for l:line in a:lines
+        let l:match = matchlist(l:line, l:pattern)
+
+        if len(l:match) != 0
+            let l:code = l:match[2]
+
+            call add(l:output, {
+            \   'lnum': str2nr(l:match[1]),
+            \   'lcol': 0,
+            \   'text': l:code,
+            \   'type': 'W'
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('erlang', {
+\   'name': 'dialyzer',
+\   'executable': function('ale_linters#erlang#dialyzer#GetExecutable'),
+\   'command': function('ale_linters#erlang#dialyzer#GetCommand'),
+\   'callback': function('ale_linters#erlang#dialyzer#Handle'),
+\   'lint_file': 1
+\})

ale_linters/erlang/elvis.vim

@@ -0,0 +1,39 @@
+" Author: Dmitri Vereshchagin <dmitri.vereshchagin@gmail.com>
+" Description: Elvis linter for Erlang files
+
+call ale#Set('erlang_elvis_executable', 'elvis')
+
+function! ale_linters#erlang#elvis#Handle(buffer, lines) abort
+    let l:pattern = '\v:(\d+):[^:]+:(.+)'
+    let l:loclist = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:loclist, {
+        \   'lnum': str2nr(l:match[1]),
+        \   'text': s:AbbreviateMessage(l:match[2]),
+        \   'type': 'W',
+        \})
+    endfor
+
+    return l:loclist
+endfunction
+
+function! s:AbbreviateMessage(text) abort
+    let l:pattern = '\v\c^(line \d+ is too long):.*$'
+
+    return substitute(a:text, l:pattern, '\1.', '')
+endfunction
+
+function! s:GetCommand(buffer) abort
+    let l:file = ale#Escape(expand('#' . a:buffer . ':.'))
+
+    return '%e rock --output-format=parsable ' . l:file
+endfunction
+
+call ale#linter#Define('erlang', {
+\   'name': 'elvis',
+\   'callback': 'ale_linters#erlang#elvis#Handle',
+\   'executable': {b -> ale#Var(b, 'erlang_elvis_executable')},
+\   'command': function('s:GetCommand'),
+\   'lint_file': 1,
+\})

ale_linters/erlang/erlc.vim

@@ -1,14 +1,22 @@
 " Author: Magnus Ottenklinger - https://github.com/evnu
 
+let g:ale_erlang_erlc_executable = get(g:, 'ale_erlang_erlc_executable', 'erlc')
 let g:ale_erlang_erlc_options = get(g:, 'ale_erlang_erlc_options', '')
 
-function! ale_linters#erlang#erlc#GetCommand(buffer) abort
-    let l:output_file = tempname()
-    call ale#engine#ManageFile(a:buffer, l:output_file)
+function! ale_linters#erlang#erlc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'erlang_erlc_executable')
+endfunction
 
-    return 'erlc -o ' . ale#Escape(l:output_file)
-    \   . ' ' . ale#Var(a:buffer, 'erlang_erlc_options')
-    \   . ' %t'
+function! ale_linters#erlang#erlc#GetCommand(buffer) abort
+    let l:output_file = ale#util#Tempname()
+    call ale#command#ManageFile(a:buffer, l:output_file)
+
+    let l:command = ale#Escape(ale_linters#erlang#erlc#GetExecutable(a:buffer))
+    \             . ' -o ' . ale#Escape(l:output_file)
+    \             . ' ' . ale#Var(a:buffer, 'erlang_erlc_options')
+    \             . ' %t'
+
+    return l:command
 endfunction
 
 function! ale_linters#erlang#erlc#Handle(buffer, lines) abort
@@ -90,7 +98,7 @@ endfunction
 
 call ale#linter#Define('erlang', {
 \   'name': 'erlc',
-\   'executable': 'erlc',
-\   'command_callback': 'ale_linters#erlang#erlc#GetCommand',
+\   'executable': function('ale_linters#erlang#erlc#GetExecutable'),
+\   'command': function('ale_linters#erlang#erlc#GetCommand'),
 \   'callback': 'ale_linters#erlang#erlc#Handle',
 \})

ale_linters/erlang/syntaxerl.vim

@@ -3,24 +3,22 @@
 
 call ale#Set('erlang_syntaxerl_executable', 'syntaxerl')
 
+function! ale_linters#erlang#syntaxerl#RunHelpCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'erlang_syntaxerl_executable')
 
-function! ale_linters#erlang#syntaxerl#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'erlang_syntaxerl_executable')
+    return ale#command#Run(
+    \   a:buffer,
+    \   ale#Escape(l:executable) . ' -h',
+    \   function('ale_linters#erlang#syntaxerl#GetCommand'),
+    \)
 endfunction
 
-
-function! ale_linters#erlang#syntaxerl#FeatureCheck(buffer) abort
-    return s:GetEscapedExecutable(a:buffer) . ' -h'
-endfunction
-
-
-function! ale_linters#erlang#syntaxerl#GetCommand(buffer, output) abort
+function! ale_linters#erlang#syntaxerl#GetCommand(buffer, output, meta) abort
     let l:use_b_option = match(a:output, '\C\V-b, --base\>') > -1
 
-    return s:GetEscapedExecutable(a:buffer) . (l:use_b_option ? ' -b %s %t' : ' %t')
+    return '%e' . (l:use_b_option ? ' -b %s %t' : ' %t')
 endfunction
 
-
 function! ale_linters#erlang#syntaxerl#Handle(buffer, lines) abort
     let l:pattern = '\v\C:(\d+):( warning:)? (.+)'
     let l:loclist = []
@@ -36,18 +34,9 @@ function! ale_linters#erlang#syntaxerl#Handle(buffer, lines) abort
     return l:loclist
 endfunction
 
-
-function! s:GetEscapedExecutable(buffer) abort
-    return ale#Escape(ale_linters#erlang#syntaxerl#GetExecutable(a:buffer))
-endfunction
-
-
 call ale#linter#Define('erlang', {
 \   'name': 'syntaxerl',
-\   'executable_callback': 'ale_linters#erlang#syntaxerl#GetExecutable',
-\   'command_chain': [
-\       {'callback': 'ale_linters#erlang#syntaxerl#FeatureCheck'},
-\       {'callback': 'ale_linters#erlang#syntaxerl#GetCommand'},
-\   ],
+\   'executable': {b -> ale#Var(b, 'erlang_syntaxerl_executable')},
+\   'command': {b -> ale_linters#erlang#syntaxerl#RunHelpCommand(b)},
 \   'callback': 'ale_linters#erlang#syntaxerl#Handle',
 \})

ale_linters/eruby/erb.vim

@@ -19,7 +19,7 @@ call ale#linter#Define('eruby', {
 \   'aliases': ['erubylint'],
 \   'executable': 'erb',
 \   'output_stream': 'stderr',
-\   'command_callback': 'ale_linters#eruby#erb#GetCommand',
+\   'command': function('ale_linters#eruby#erb#GetCommand'),
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})
 

ale_linters/eruby/erubi.vim

@@ -1,14 +1,10 @@
 " Author: Eddie Lebow https://github.com/elebow
 " Description: eruby checker using `erubi`
 
-function! ale_linters#eruby#erubi#CheckErubi(buffer) abort
-    return 'ruby -r erubi/capture_end -e ' . ale#Escape('""')
-endfunction
-
-function! ale_linters#eruby#erubi#GetCommand(buffer, check_erubi_output) abort
+function! ale_linters#eruby#erubi#GetCommand(buffer, output, meta) abort
     let l:rails_root = ale#ruby#FindRailsRoot(a:buffer)
 
-    if (!empty(a:check_erubi_output))
+    if !empty(a:output)
         " The empty command in CheckErubi returns nothing if erubi runs and
         " emits an error if erubi is not present
         return ''
@@ -27,9 +23,10 @@ endfunction
 call ale#linter#Define('eruby', {
 \   'name': 'erubi',
 \   'executable': 'ruby',
-\   'command_chain': [
-\     {'callback': 'ale_linters#eruby#erubi#CheckErubi'},
-\     {'callback': 'ale_linters#eruby#erubi#GetCommand', 'output_stream': 'stderr'},
-\   ],
+\   'command': {buffer -> ale#command#Run(
+\       buffer,
+\       'ruby -r erubi/capture_end -e ' . ale#Escape('""'),
+\       function('ale_linters#eruby#erubi#GetCommand'),
+\   )},
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})

ale_linters/eruby/erubis.vim

@@ -18,6 +18,6 @@ call ale#linter#Define('eruby', {
 \   'name': 'erubis',
 \   'executable': 'erubis',
 \   'output_stream': 'stderr',
-\   'command_callback': 'ale_linters#eruby#erubis#GetCommand',
+\   'command': function('ale_linters#eruby#erubis#GetCommand'),
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})

ale_linters/eruby/ruumba.vim

@@ -0,0 +1,62 @@
+" Author: aclemons - https://github.com/aclemons
+" based on the ale rubocop linter
+" Description: Ruumba, RuboCop linting for ERB templates.
+
+call ale#Set('eruby_ruumba_executable', 'ruumba')
+call ale#Set('eruby_ruumba_options', '')
+
+function! ale_linters#eruby#ruumba#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'eruby_ruumba_executable')
+
+    return ale#ruby#EscapeExecutable(l:executable, 'ruumba')
+    \   . ' --format json --force-exclusion '
+    \   . ale#Var(a:buffer, 'eruby_ruumba_options')
+    \   . ' --stdin %s'
+endfunction
+
+function! ale_linters#eruby#ruumba#Handle(buffer, lines) abort
+    try
+        let l:errors = json_decode(a:lines[0])
+    catch
+        return []
+    endtry
+
+    if !has_key(l:errors, 'summary')
+    \|| l:errors['summary']['offense_count'] == 0
+    \|| empty(l:errors['files'])
+        return []
+    endif
+
+    let l:output = []
+
+    for l:error in l:errors['files'][0]['offenses']
+        let l:start_col = l:error['location']['column'] + 0
+        call add(l:output, {
+        \   'lnum': l:error['location']['line'] + 0,
+        \   'col': l:start_col,
+        \   'end_col': l:start_col + l:error['location']['length'] - 1,
+        \   'code': l:error['cop_name'],
+        \   'text': l:error['message'],
+        \   'type': ale_linters#eruby#ruumba#GetType(l:error['severity']),
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#eruby#ruumba#GetType(severity) abort
+    if a:severity is? 'convention'
+    \|| a:severity is? 'warning'
+    \|| a:severity is? 'refactor'
+        return 'W'
+    endif
+
+    return 'E'
+endfunction
+
+call ale#linter#Define('eruby', {
+\   'name': 'ruumba',
+\   'executable': {b -> ale#Var(b, 'eruby_ruumba_executable')},
+\   'command': function('ale_linters#eruby#ruumba#GetCommand'),
+\   'callback': 'ale_linters#eruby#ruumba#Handle',
+\})

ale_linters/fortran/gcc.vim

@@ -2,18 +2,10 @@
 " Description: gcc for Fortran files
 
 " This option can be set to 0 to use -ffixed-form
-if !exists('g:ale_fortran_gcc_use_free_form')
-    let g:ale_fortran_gcc_use_free_form = 1
-endif
-
-if !exists('g:ale_fortran_gcc_executable')
-    let g:ale_fortran_gcc_executable = 'gcc'
-endif
-
+call ale#Set('fortran_gcc_use_free_form', 1)
+call ale#Set('fortran_gcc_executable', 'gcc')
 " Set this option to change the GCC options for warnings for Fortran.
-if !exists('g:ale_fortran_gcc_options')
-    let g:ale_fortran_gcc_options = '-Wall'
-endif
+call ale#Set('fortran_gcc_options', '-Wall')
 
 function! ale_linters#fortran#gcc#Handle(buffer, lines) abort
     " We have to match a starting line and a later ending line together,
@@ -61,26 +53,20 @@ function! ale_linters#fortran#gcc#Handle(buffer, lines) abort
     return l:output
 endfunction
 
-function! ale_linters#fortran#gcc#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'fortran_gcc_executable')
-endfunction
-
 function! ale_linters#fortran#gcc#GetCommand(buffer) abort
     let l:layout_option = ale#Var(a:buffer, 'fortran_gcc_use_free_form')
     \   ? '-ffree-form'
     \   : '-ffixed-form'
 
-    return ale_linters#fortran#gcc#GetExecutable(a:buffer)
-    \   . ' -S -x f95 -fsyntax-only '
-    \   . l:layout_option . ' '
-    \   . ale#Var(a:buffer, 'fortran_gcc_options') . ' '
-    \   . '-'
+    return '%e -S -x f95 -fsyntax-only ' . l:layout_option
+    \   . ale#Pad(ale#Var(a:buffer, 'fortran_gcc_options'))
+    \   . ' -'
 endfunction
 
 call ale#linter#Define('fortran', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
-\   'executable_callback': 'ale_linters#fortran#gcc#GetExecutable',
-\   'command_callback': 'ale_linters#fortran#gcc#GetCommand',
+\   'executable': {b -> ale#Var(b, 'fortran_gcc_executable')},
+\   'command': function('ale_linters#fortran#gcc#GetCommand'),
 \   'callback': 'ale_linters#fortran#gcc#Handle',
 \})

ale_linters/fortran/language_server.vim

@@ -0,0 +1,19 @@
+" Author: unpairedbracket ben.spiers22@gmail.com
+" Description: A language server for fortran
+
+call ale#Set('fortran_language_server_executable', 'fortls')
+call ale#Set('fortran_language_server_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale_linters#fortran#language_server#GetProjectRoot(buffer) abort
+    let l:fortls_file = ale#path#FindNearestFile(a:buffer, '.fortls')
+
+    return !empty(l:fortls_file) ? fnamemodify(l:fortls_file, ':h') : ''
+endfunction
+
+call ale#linter#Define('fortran', {
+\   'name': 'language_server',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'fortran_language_server_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#fortran#language_server#GetProjectRoot'),
+\})

ale_linters/fuse/fusionlint.vim

@@ -1,19 +1,11 @@
 " Author: RyanSquared <vandor2012@gmail.com>
 " Description: `fusion-lint` linter for FusionScript files
 
-let g:ale_fuse_fusionlint_executable =
-\   get(g:, 'ale_fuse_fusionlint_executable', 'fusion-lint')
-
-let g:ale_fuse_fusionlint_options =
-\   get(g:, 'ale_fuse_fusionlint_options', '')
-
-function! ale_linters#fuse#fusionlint#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'fuse_fusionlint_executable')
-endfunction
+call ale#Set('fuse_fusionlint_executable', 'fusion-lint')
+call ale#Set('fuse_fusionlint_options', '')
 
 function! ale_linters#fuse#fusionlint#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#fuse#fusionlint#GetExecutable(a:buffer))
-    \   . ' ' . ale#Var(a:buffer, 'fuse_fusionlint_options')
+    return '%e' . ale#Pad(ale#Var(a:buffer, 'fuse_fusionlint_options'))
     \   . ' --filename %s -i'
 endfunction
 
@@ -35,7 +27,7 @@ endfunction
 
 call ale#linter#Define('fuse', {
 \   'name': 'fusionlint',
-\   'executable_callback': 'ale_linters#fuse#fusionlint#GetExecutable',
-\   'command_callback': 'ale_linters#fuse#fusionlint#GetCommand',
+\   'executable': {b -> ale#Var(b, 'fuse_fusionlint_executable')},
+\   'command': function('ale_linters#fuse#fusionlint#GetCommand'),
 \   'callback': 'ale_linters#fuse#fusionlint#Handle',
 \})