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" Author: Michael Thiesen <micthiesen@gmail.com>
" Description: pycodestyle linting for python files
call ale#Set('python_pycodestyle_executable', 'pycodestyle')
call ale#Set('python_pycodestyle_options', '')
call ale#Set('python_pycodestyle_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_pycodestyle_auto_pipenv', 0)
function! ale_linters#python#pycodestyle#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_pycodestyle_auto_pipenv'))
\ && ale#python#PipenvPresent(a:buffer)
return 'pipenv'
endif
return ale#python#FindExecutable(a:buffer, 'python_pycodestyle', ['pycodestyle'])
endfunction
function! ale_linters#python#pycodestyle#GetCommand(buffer) abort
let l:executable = ale_linters#python#pycodestyle#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv$'
\ ? ' run pycodestyle'
\ : ''
return ale#Escape(l:executable) . l:exec_args
\ . ' '
\ . ale#Var(a:buffer, 'python_pycodestyle_options')
\ . ' -'
endfunction
function! ale_linters#python#pycodestyle#Handle(buffer, lines) abort
let l:pattern = '\v^(\S*):(\d*):(\d*): ([EW]\d+) (.*)$'
let l:output = []
" lines are formatted as follows:
" file.py:21:26: W291 trailing whitespace
for l:match in ale#util#GetMatches(a:lines, l:pattern)
if(l:match[4] is# 'W291' || l:match[4] is# 'W293')
\&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
" Skip warnings for trailing whitespace if the option is off.
continue
endif
if l:match[4] is# 'W391'
\&& !ale#Var(a:buffer, 'warn_about_trailing_blank_lines')
" Skip warnings for trailing blank lines if the option is off
continue
endif
let l:item = {
\ 'lnum': l:match[2] + 0,
\ 'col': l:match[3] + 0,
\ 'type': l:match[4][0],
\ 'sub_type': 'style',
\ 'text': l:match[5],
\ 'code': l:match[4],
\}
" E999 and E112 are syntax errors.
if l:match[4] is# 'E999' || l:match[4] is# 'E112'
unlet l:item.sub_type
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'pycodestyle',
\ 'executable_callback': 'ale_linters#python#pycodestyle#GetExecutable',
\ 'command_callback': 'ale_linters#python#pycodestyle#GetCommand',
\ 'callback': 'ale_linters#python#pycodestyle#Handle',
\})
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