mirror of https://github.com/dense-analysis/ale
153 lines
4.9 KiB
VimL
153 lines
4.9 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
|
|
" Description: flake8 for python files
|
|
|
|
call ale#Set('python_flake8_executable', 'flake8')
|
|
call ale#Set('python_flake8_options', '')
|
|
call ale#Set('python_flake8_use_global', get(g:, 'ale_use_global_executables', 0))
|
|
call ale#Set('python_flake8_change_directory', 1)
|
|
call ale#Set('python_flake8_auto_pipenv', 0)
|
|
|
|
function! s:UsingModule(buffer) abort
|
|
return ale#Var(a:buffer, 'python_flake8_options') =~# ' *-m flake8'
|
|
endfunction
|
|
|
|
function! ale_linters#python#flake8#GetExecutable(buffer) abort
|
|
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_flake8_auto_pipenv'))
|
|
\ && ale#python#PipenvPresent(a:buffer)
|
|
return 'pipenv'
|
|
endif
|
|
|
|
if !s:UsingModule(a:buffer)
|
|
return ale#python#FindExecutable(a:buffer, 'python_flake8', ['flake8'])
|
|
endif
|
|
|
|
return ale#Var(a:buffer, 'python_flake8_executable')
|
|
endfunction
|
|
|
|
function! ale_linters#python#flake8#VersionCheck(buffer) abort
|
|
let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
|
|
|
|
" If we have previously stored the version number in a cache, then
|
|
" don't look it up again.
|
|
if ale#semver#HasVersion(l:executable)
|
|
" Returning an empty string skips this command.
|
|
return ''
|
|
endif
|
|
|
|
let l:executable = ale#Escape(l:executable)
|
|
let l:module_string = s:UsingModule(a:buffer) ? ' -m flake8' : ''
|
|
|
|
return l:executable . l:module_string . ' --version'
|
|
endfunction
|
|
|
|
function! ale_linters#python#flake8#GetCommand(buffer, version_output) abort
|
|
let l:cd_string = ale#Var(a:buffer, 'python_flake8_change_directory')
|
|
\ ? ale#path#BufferCdString(a:buffer)
|
|
\ : ''
|
|
let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
|
|
let l:version = ale#semver#GetVersion(l:executable, a:version_output)
|
|
|
|
let l:exec_args = l:executable =~? 'pipenv$'
|
|
\ ? ' run flake8'
|
|
\ : ''
|
|
|
|
" Only include the --stdin-display-name argument if we can parse the
|
|
" flake8 version, and it is recent enough to support it.
|
|
let l:display_name_args = ale#semver#GTE(l:version, [3, 0, 0])
|
|
\ ? ' --stdin-display-name %s'
|
|
\ : ''
|
|
|
|
let l:options = ale#Var(a:buffer, 'python_flake8_options')
|
|
|
|
return l:cd_string
|
|
\ . ale#Escape(l:executable) . l:exec_args
|
|
\ . (!empty(l:options) ? ' ' . l:options : '')
|
|
\ . ' --format=default'
|
|
\ . l:display_name_args . ' -'
|
|
endfunction
|
|
|
|
let s:end_col_pattern_map = {
|
|
\ 'F405': '\(.\+\) may be undefined',
|
|
\ 'F821': 'undefined name ''\([^'']\+\)''',
|
|
\ 'F999': '^''\([^'']\+\)''',
|
|
\ 'F841': 'local variable ''\([^'']\+\)''',
|
|
\}
|
|
|
|
function! ale_linters#python#flake8#Handle(buffer, lines) abort
|
|
let l:output = ale#python#HandleTraceback(a:lines, 10)
|
|
|
|
if !empty(l:output)
|
|
return l:output
|
|
endif
|
|
|
|
" Matches patterns line the following:
|
|
"
|
|
" Matches patterns line the following:
|
|
"
|
|
" stdin:6:6: E111 indentation is not a multiple of four
|
|
let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):?(\d+)?: ([[:alnum:]]+):? (.*)$'
|
|
|
|
for l:match in ale#util#GetMatches(a:lines, l:pattern)
|
|
let l:code = l:match[3]
|
|
|
|
if (l:code is# 'W291' || l:code is# 'W293')
|
|
\ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
|
|
" Skip warnings for trailing whitespace if the option is off.
|
|
continue
|
|
endif
|
|
|
|
if l:code 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[1] + 0,
|
|
\ 'col': l:match[2] + 0,
|
|
\ 'vcol': 1,
|
|
\ 'text': l:match[4],
|
|
\ 'code': l:code,
|
|
\ 'type': 'W',
|
|
\}
|
|
|
|
if l:code[:0] is# 'F'
|
|
if l:code isnot# 'F401'
|
|
let l:item.type = 'E'
|
|
endif
|
|
elseif l:code[:0] is# 'E'
|
|
let l:item.type = 'E'
|
|
|
|
if l:code isnot# 'E999' && l:code isnot# 'E112'
|
|
let l:item.sub_type = 'style'
|
|
endif
|
|
elseif l:code[:0] is# 'W'
|
|
let l:item.sub_type = 'style'
|
|
endif
|
|
|
|
let l:end_col_pattern = get(s:end_col_pattern_map, l:code, '')
|
|
|
|
if !empty(l:end_col_pattern)
|
|
let l:end_col_match = matchlist(l:match[4], l:end_col_pattern)
|
|
|
|
if !empty(l:end_col_match)
|
|
let l:item.end_col = l:item.col + len(l:end_col_match[1]) - 1
|
|
endif
|
|
endif
|
|
|
|
call add(l:output, l:item)
|
|
endfor
|
|
|
|
return l:output
|
|
endfunction
|
|
|
|
call ale#linter#Define('python', {
|
|
\ 'name': 'flake8',
|
|
\ 'executable_callback': 'ale_linters#python#flake8#GetExecutable',
|
|
\ 'command_chain': [
|
|
\ {'callback': 'ale_linters#python#flake8#VersionCheck'},
|
|
\ {'callback': 'ale_linters#python#flake8#GetCommand', 'output_stream': 'both'},
|
|
\ ],
|
|
\ 'callback': 'ale_linters#python#flake8#Handle',
|
|
\})
|