72 lines
2.4 KiB
VimL
72 lines
2.4 KiB
VimL
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" Author: Keith Smiley <k@keith.so>, w0rp <devw0rp@gmail.com>
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" Description: mypy support for optional python typechecking
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call ale#Set('python_mypy_executable', 'mypy')
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call ale#Set('python_mypy_ignore_invalid_syntax', 0)
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call ale#Set('python_mypy_options', '')
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call ale#Set('python_mypy_use_global', 0)
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function! ale_linters#python#mypy#GetExecutable(buffer) abort
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return ale#python#FindExecutable(a:buffer, 'python_mypy', ['mypy'])
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endfunction
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" The directory to change to before running mypy
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function! s:GetDir(buffer) abort
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let l:project_root = ale#python#FindProjectRoot(a:buffer)
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return !empty(l:project_root)
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\ ? l:project_root
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\ : expand('#' . a:buffer . ':p:h')
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endfunction
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function! ale_linters#python#mypy#GetCommand(buffer) abort
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let l:dir = s:GetDir(a:buffer)
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let l:executable = ale_linters#python#mypy#GetExecutable(a:buffer)
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" We have to always switch to an explicit directory for a command so
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" we can know with certainty the base path for the 'filename' keys below.
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return ale#path#CdString(l:dir)
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\ . ale#Escape(l:executable)
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\ . ' --show-column-numbers '
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\ . ale#Var(a:buffer, 'python_mypy_options')
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\ . ' --shadow-file %s %t %s'
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endfunction
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function! ale_linters#python#mypy#Handle(buffer, lines) abort
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let l:dir = s:GetDir(a:buffer)
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" Look for lines like the following:
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"
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" file.py:4: error: No library stub file for module 'django.db'
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"
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" Lines like these should be ignored below:
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"
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" file.py:4: note: (Stub files are from https://github.com/python/typeshed)
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let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?: (error|warning): (.+)$'
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let l:output = []
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for l:match in ale#util#GetMatches(a:lines, l:pattern)
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" Skip invalid syntax errors if the option is on.
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if l:match[5] is# 'invalid syntax'
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\&& ale#Var(a:buffer, 'python_mypy_ignore_invalid_syntax')
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continue
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endif
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call add(l:output, {
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\ 'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
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\ 'lnum': l:match[2] + 0,
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\ 'col': l:match[3] + 0,
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\ 'type': l:match[4] is# 'error' ? 'E' : 'W',
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\ 'text': l:match[5],
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\})
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endfor
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return l:output
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endfunction
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call ale#linter#Define('python', {
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\ 'name': 'mypy',
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\ 'executable_callback': 'ale_linters#python#mypy#GetExecutable',
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\ 'command_callback': 'ale_linters#python#mypy#GetCommand',
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\ 'callback': 'ale_linters#python#mypy#Handle',
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\})
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