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" Author: keith <k@keith.so>
" Description: pylint for python files
call ale#Set('python_pylint_executable', 'pylint')
call ale#Set('python_pylint_options', '')
call ale#Set('python_pylint_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_pylint_change_directory', 1)
call ale#Set('python_pylint_auto_pipenv', 0)
call ale#Set('python_pylint_use_msg_id', 0)
function! ale_linters#python#pylint#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_pylint_auto_pipenv'))
\ && ale#python#PipenvPresent(a:buffer)
return 'pipenv'
endif
return ale#python#FindExecutable(a:buffer, 'python_pylint', ['pylint'])
endfunction
function! ale_linters#python#pylint#GetCwd(buffer) abort
if ale#Var(a:buffer, 'python_pylint_change_directory')
" pylint only checks for pylintrc in the packages above its current
" directory before falling back to user and global pylintrc.
" Run from project root, if found, otherwise buffer dir.
let l:project_root = ale#python#FindProjectRoot(a:buffer)
return !empty(l:project_root) ? l:project_root : '%s:h'
endif
return ''
endfunction
function! ale_linters#python#pylint#GetCommand(buffer, version) abort
let l:executable = ale_linters#python#pylint#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv$'
\ ? ' run pylint'
\ : ''
return ale#Escape(l:executable) . l:exec_args
\ . ale#Pad(ale#Var(a:buffer, 'python_pylint_options'))
\ . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n'
\ . (ale#semver#GTE(a:version, [2, 4, 0]) ? ' --from-stdin' : '')
\ . ' %s'
endfunction
function! ale_linters#python#pylint#Handle(buffer, lines) abort
let l:output = ale#python#HandleTraceback(a:lines, 10)
if !empty(l:output)
return l:output
endif
" Matches patterns like the following:
"
" test.py:4:4: W0101 (unreachable) Unreachable code
let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+): ([[:alnum:]]+) \(([^(]*)\) (.*)$'
for l:match in ale#util#GetMatches(a:lines, l:pattern)
"let l:failed = append(0, l:match)
let l:code = l:match[3]
if (l:code is# 'C0303')
\ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
" Skip warnings for trailing whitespace if the option is off.
continue
endif
if l:code is# 'I0011'
" Skip 'Locally disabling' message
continue
endif
if ale#Var(a:buffer, 'python_pylint_use_msg_id') is# 1
let l:code_out = l:code
else
let l:code_out = l:match[4]
endif
let l:item = {
\ 'lnum': l:match[1] + 0,
\ 'col': l:match[2] + 1,
\ 'text': l:match[5],
\ 'code': l:code_out,
\ 'type': 'W',
\}
if l:code[:0] is# 'E'
let l:item.type = 'E'
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'pylint',
\ 'executable': function('ale_linters#python#pylint#GetExecutable'),
\ 'lint_file': {buffer -> ale#semver#RunWithVersionCheck(
\ buffer,
\ ale#Var(buffer, 'python_pylint_executable'),
\ '%e --version',
\ {buffer, version -> !ale#semver#GTE(version, [2, 4, 0])},
\ )},
\ 'cwd': function('ale_linters#python#pylint#GetCwd'),
\ 'command': {buffer -> ale#semver#RunWithVersionCheck(
\ buffer,
\ ale#Var(buffer, 'python_pylint_executable'),
\ '%e --version',
\ function('ale_linters#python#pylint#GetCommand'),
\ )},
\ 'callback': 'ale_linters#python#pylint#Handle',
\})
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