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" Author: Keith Smiley <k@keith.so>, w0rp <devw0rp@gmail.com>
" Description: mypy support for optional python typechecking
let g:ale_python_mypy_options = get(g:, 'ale_python_mypy_options', '')
function! ale_linters#python#mypy#GetCommand(buffer) abort
let l:automatic_stubs_dir = ale#path#FindNearestDirectory(a:buffer, 'stubs')
" TODO: Add Windows support
let l:automatic_stubs_command = (has('unix') && !empty(l:automatic_stubs_dir))
\ ? 'MYPYPATH=' . l:automatic_stubs_dir . ' '
\ : ''
return 'mypy --show-column-numbers '
\ . ale#Var(a:buffer, 'python_mypy_options')
\ . ' %t'
endfunction
function! ale_linters#python#mypy#Handle(buffer, lines) abort
" Look for lines like the following:
"
" file.py:4: error: No library stub file for module 'django.db'
"
" Lines like these should be ignored below:
"
" file.py:4: note: (Stub files are from https://github.com/python/typeshed)
let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):?(\d+)?: ([^:]+): (.+)$'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:pattern)
if l:match[4] =~# 'Stub files are from'
" The lines telling us where to get stub files from make it so
" we can't read the actual errors, so exclude them.
continue
endif
call add(l:output, {
\ 'lnum': l:match[1] + 0,
\ 'col': l:match[2] + 0,
\ 'text': l:match[4],
\ 'type': l:match[3] =~# 'error' ? 'E' : 'W',
\})
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'mypy',
\ 'executable': 'mypy',
\ 'command_callback': 'ale_linters#python#mypy#GetCommand',
\ 'callback': 'ale_linters#python#mypy#Handle',
\})
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