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Respect python black fixer configuration file

Browse source 
Similar to other linters/fixers, by default change to the directory of
the file being fixed before invoking `black`, which allows the tool to
read project-specific configuration (pyproject.toml)

Fixes #2218
This commit is contained in:
Aiden Scandella 2019-01-30 07:57:58 -08:00
parent 067601e9db
commit de29ff26ff
No known key found for this signature in database
GPG key ID: 17C559C421D83A19
3 changed files with 21 additions and 3 deletions
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7
autoload/ale/fixers/black.vim
View file

@ -5,6 +5,7 @@ call ale#Set('python_black_executable', 'black')
call ale#Set('python_black_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_black_options', '')
call ale#Set('python_black_auto_pipenv', 0)
call ale#Set('python_black_change_directory', 1)
function! ale#fixers#black#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_black_auto_pipenv'))
@ -16,6 +17,10 @@ function! ale#fixers#black#GetExecutable(buffer) abort
endfunction
function! ale#fixers#black#Fix(buffer) abort
let l:cd_string = ale#Var(a:buffer, 'python_black_change_directory')
\ ? ale#path#BufferCdString(a:buffer)
\ : ''
let l:executable = ale#fixers#black#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv$'
@ -25,7 +30,7 @@ function! ale#fixers#black#Fix(buffer) abort
let l:options = ale#Var(a:buffer, 'python_black_options')
return {
\ 'command': ale#Escape(l:executable) . l:exec_args
\ 'command': l:cd_string . ale#Escape(l:executable) . l:exec_args
\ . (!empty(l:options) ? ' ' . l:options : '')
\ . ' -',
\}

10
doc/ale-python.txt
View file

@ -139,6 +139,16 @@ g:ale_python_black_auto_pipenv *g:ale_python_black_auto_pipenv*
Detect whether the file is inside a pipenv, and set the executable to `pipenv`
if true. This is overridden by a manually-set executable.
g:ale_python_black_change_directory *g:ale_python_black_change_directory*
*b:ale_python_black_change_directory*
Type: |Number|
Default: `1`
If set to `1`, ALE will switch to the directory the Python file being
checked with `black` is in before checking it. This helps `black` find
configuration files more easily. This option can be turned off if you want
to control the directory Python is executed from yourself.
===============================================================================
flake8 *ale-python-flake8*

7
test/fixers/test_black_fixer_callback.vader
View file

@ -24,11 +24,12 @@ After:
Execute(The black callback should return the correct default values):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
AssertEqual
\ {'command': ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/black')) . ' -'},
\ {'command': ale#path#BufferCdString(bufnr('')) . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/black')) . ' -'},
\ ale#fixers#black#Fix(bufnr(''))
Execute(The black callback should include options):
let g:ale_python_black_options = '--some-option'
let g:ale_python_black_change_directory = 0
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
AssertEqual
@ -37,8 +38,10 @@ Execute(The black callback should include options):
Execute(Pipenv is detected when python_black_auto_pipenv is set):
let g:ale_python_black_auto_pipenv = 1
let g:ale_python_black_change_directory = 0
call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
AssertEqual
AssertEqual
\ {'command': ale#Escape('pipenv') . ' run black -'},
\ ale#fixers#black#Fix(bufnr(''))