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ale/ale_linters/java/javalsp.vim
Horacio Sanson 40bf6e6b5c Add support for javalsp configuration options.
This MR adds a new configuration variable `g:ale_java_javalsp_config`
that allows to configure external dependencies and class paths to the
language server.

The variable accepts a dictionary similar to the one supported by the
[vscode/settings.json](https://github.com/georgewfraser/java-language-server#settings)
file.

Deprecates: #2561
2019-06-19 11:38:23 +09:00

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2.1 KiB
VimL

" Author: Horacio Sanson <https://github.com/hsanson>
" Description: Support for the Java language server https://github.com/georgewfraser/vscode-javac
call ale#Set('java_javalsp_executable', '')
call ale#Set('java_javalsp_config', {})
function! ale_linters#java#javalsp#Executable(buffer) abort
return ale#Var(a:buffer, 'java_javalsp_executable')
endfunction
function! ale_linters#java#javalsp#Config(buffer) abort
let l:defaults = { 'java': { 'classPath': [], 'externalDependencies': [] } }
let l:config = ale#Var(a:buffer, 'java_javalsp_config')
" Ensure the config dictionary contains both classPath and
" externalDependencies keys to avoid a NPE crash on Java Language Server.
call extend(l:config, l:defaults, 'keep')
call extend(l:config['java'], l:defaults['java'], 'keep')
return l:config
endfunction
function! ale_linters#java#javalsp#Command(buffer) abort
let l:executable = ale_linters#java#javalsp#Executable(a:buffer)
if fnamemodify(l:executable, ':t') is# 'java'
" For backward compatibility.
let l:cmd = [
\ ale#Escape(l:executable),
\ '--add-exports jdk.compiler/com.sun.tools.javac.api=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.code=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.comp=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.main=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.tree=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.model=javacs',
\ '--add-exports jdk.compiler/com.sun.tools.javac.util=javacs',
\ '--add-opens jdk.compiler/com.sun.tools.javac.api=javacs',
\ '-m javacs/org.javacs.Main',
\]
return join(l:cmd, ' ')
else
return ale#Escape(l:executable)
endif
endfunction
call ale#linter#Define('java', {
\ 'name': 'javalsp',
\ 'lsp': 'stdio',
\ 'executable': function('ale_linters#java#javalsp#Executable'),
\ 'command': function('ale_linters#java#javalsp#Command'),
\ 'language': 'java',
\ 'project_root': function('ale#java#FindProjectRoot'),
\ 'lsp_config': function('ale_linters#java#javalsp#Config')
\})