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" Author: Kevin Locke <kevin@kevinlocke.name>
" Description: pylama for python files
call ale#Set('python_pylama_executable', 'pylama')
call ale#Set('python_pylama_options', '')
call ale#Set('python_pylama_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_pylama_auto_pipenv', 0)
call ale#Set('python_pylama_change_directory', 1)
function! ale_linters#python#pylama#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_pylama_auto_pipenv'))
\ && ale#python#PipenvPresent(a:buffer)
return 'pipenv'
endif
return ale#python#FindExecutable(a:buffer, 'python_pylama', ['pylama'])
endfunction
function! ale_linters#python#pylama#GetCommand(buffer) abort
let l:cd_string = ''
if ale#Var(a:buffer, 'python_pylama_change_directory')
" Pylama loads its configuration from the current directory only, and
" applies file masks using paths relative to the current directory.
" Run from project root, if found, otherwise buffer dir.
let l:project_root = ale#python#FindProjectRoot(a:buffer)
let l:cd_string = l:project_root isnot# ''
\ ? ale#path#CdString(l:project_root)
\ : ale#path#BufferCdString(a:buffer)
endif
let l:executable = ale_linters#python#pylama#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv$'
\ ? ' run pylama'
\ : ''
" Note: Using %t to lint changes would be preferable, but many pylama
" checks use surrounding paths (e.g. C0103 module name, E0402 relative
" import beyond top, etc.). Neither is ideal.
return l:cd_string
\ . ale#Escape(l:executable) . l:exec_args
\ . ale#Pad(ale#Var(a:buffer, 'python_pylama_options'))
\ . ' %s'
endfunction
function! ale_linters#python#pylama#Handle(buffer, lines) abort
if empty(a:lines)
return []
endif
let l:output = ale#python#HandleTraceback(a:lines, 1)
let l:pattern = '\v^.{-}:([0-9]+):([0-9]+): +%(([A-Z][0-9]+):? +)?(.*)$'
" First letter of error code is a pylint-compatible message type
" http://pylint.pycqa.org/en/latest/user_guide/output.html#source-code-analysis-section
" D is for Documentation (pydocstyle)
let l:pylint_type_to_ale_type = {
\ 'I': 'I',
\ 'R': 'W',
\ 'C': 'W',
\ 'W': 'W',
\ 'E': 'E',
\ 'F': 'E',
\ 'D': 'W',
\}
let l:pylint_type_to_ale_sub_type = {
\ 'R': 'style',
\ 'C': 'style',
\ 'D': 'style',
\}
for l:match in ale#util#GetMatches(a:lines, l:pattern)
call add(l:output, {
\ 'lnum': str2nr(l:match[1]),
\ 'col': str2nr(l:match[2]),
\ 'code': l:match[3],
\ 'type': get(l:pylint_type_to_ale_type, l:match[3][0], 'W'),
\ 'sub_type': get(l:pylint_type_to_ale_sub_type, l:match[3][0], ''),
\ 'text': l:match[4],
\})
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'pylama',
\ 'executable': function('ale_linters#python#pylama#GetExecutable'),
\ 'command': function('ale_linters#python#pylama#GetCommand'),
\ 'callback': 'ale_linters#python#pylama#Handle',
\ 'lint_file': 1,
\})
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