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-rw-r--r--ale_linters/python/flakehell.vim175
1 files changed, 175 insertions, 0 deletions
diff --git a/ale_linters/python/flakehell.vim b/ale_linters/python/flakehell.vim
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+" Author: w0rp <devw0rp@gmail.com>
+" Description: flakehell for python files
+
+call ale#Set('python_flakehell_executable', 'flakehell')
+call ale#Set('python_flakehell_options', '')
+call ale#Set('python_flakehell_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_flakehell_change_directory', 'project')
+call ale#Set('python_flakehell_auto_pipenv', 0)
+call ale#Set('python_flakehell_auto_poetry', 0)
+
+function! s:UsingModule(buffer) abort
+ return ale#Var(a:buffer, 'python_flakehell_executable') is? 'python'
+endfunction
+
+function! ale_linters#python#flakehell#GetExecutable(buffer) abort
+ if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_flakehell_auto_pipenv'))
+ \ && ale#python#PipenvPresent(a:buffer)
+ return 'pipenv'
+ endif
+
+ if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_flakehell_auto_poetry'))
+ \ && ale#python#PoetryPresent(a:buffer)
+ return 'poetry'
+ endif
+
+ if !s:UsingModule(a:buffer)
+ return ale#python#FindExecutable(a:buffer, 'python_flakehell', ['flakehell'])
+ endif
+
+ return ale#Var(a:buffer, 'python_flakehell_executable')
+endfunction
+
+function! ale_linters#python#flakehell#RunWithVersionCheck(buffer) abort
+ let l:executable = ale_linters#python#flakehell#GetExecutable(a:buffer)
+
+ let l:module_string = s:UsingModule(a:buffer) ? ' -m flakehell' : ''
+ let l:command = ale#Escape(l:executable) . l:module_string . ' --version'
+
+ return ale#semver#RunWithVersionCheck(
+ \ a:buffer,
+ \ l:executable,
+ \ l:command,
+ \ function('ale_linters#python#flakehell#GetCommand'),
+ \)
+endfunction
+
+function! ale_linters#python#flakehell#GetCwd(buffer) abort
+ let l:change_directory = ale#Var(a:buffer, 'python_flakehell_change_directory')
+ let l:cwd = ''
+
+ if l:change_directory is# 'project'
+ let l:project_root = ale#python#FindProjectRootIni(a:buffer)
+
+ if !empty(l:project_root)
+ let l:cwd = l:project_root
+ endif
+ endif
+
+ if (l:change_directory is# 'project' && empty(l:cwd))
+ \|| l:change_directory is# 1
+ \|| l:change_directory is# 'file'
+ let l:cwd = '%s:h'
+ endif
+
+ return l:cwd
+endfunction
+
+function! ale_linters#python#flakehell#GetCommand(buffer, version) abort
+ let l:executable = ale_linters#python#flakehell#GetExecutable(a:buffer)
+
+ if (l:executable =~? 'pipenv\|poetry$')
+ let l:exec_args = ' run flakehell'
+ elseif (l:executable is? 'python')
+ let l:exec_args = ' -m flakehell'
+ else
+ let l:exec_args = ''
+ endif
+
+ " Only include the --stdin-display-name argument if we can parse the
+ " flakehell version, and it is recent enough to support it.
+ let l:display_name_args = ale#semver#GTE(a:version, [0, 8, 0])
+ \ ? ' --stdin-display-name %s'
+ \ : ''
+
+ let l:options = ale#Var(a:buffer, 'python_flakehell_options')
+
+ return ale#Escape(l:executable)
+ \ . l:exec_args
+ \ . (!empty(l:options) ? ' lint ' . l:options : ' lint')
+ \ . ' --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#flakehell#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': 'flakehell',
+\ 'executable': function('ale_linters#python#flakehell#GetExecutable'),
+\ 'cwd': function('ale_linters#python#flakehell#GetCwd'),
+\ 'command': function('ale_linters#python#flakehell#RunWithVersionCheck'),
+\ 'callback': 'ale_linters#python#flakehell#Handle',
+\})