ale/ale_linters/lua/luacheck.vim

80 lines
2.4 KiB
VimL

" Author: Sol Bekic https://github.com/s-ol
" Description: luacheck linter for lua files
call ale#Set('lua_luacheck_executable', 'luacheck')
call ale#Set('lua_luacheck_options', '')
function! s:IsInRuntimepath(buffer) abort
let l:runtimepath_dirs = split(&runtimepath, ',')
for l:dir in ale#path#Upwards(expand('#' . a:buffer . ':p:h'))
for l:runtime_dir in l:runtimepath_dirs
if l:dir is# l:runtime_dir
return 1
endif
endfor
endfor
return 0
endfunction
function! ale_linters#lua#luacheck#GetCommand(buffer) abort
let l:options = ale#Var(a:buffer, 'lua_luacheck_options')
" Add `--globals vim` by default if the file is in runtimepath.
if l:options !~# '--globals'
let l:in_runtime = getbufvar(a:buffer, 'ale_in_runtimepath', v:null)
if l:in_runtime is v:null
let l:in_runtime = s:IsInRuntimepath(a:buffer)
" Save the result of check this buffer so we only check once.
call setbufvar(a:buffer, 'ale_in_runtimepath', l:in_runtime)
endif
if l:in_runtime
if !empty(l:options)
let l:options .= ' '
endif
let l:options .= '--globals vim'
endif
endif
return '%e' . ale#Pad(l:options)
\ . ' --formatter plain --codes --filename %s -'
endfunction
function! ale_linters#lua#luacheck#Handle(buffer, lines) abort
" Matches patterns line the following:
"
" artal.lua:159:17: (W111) shadowing definition of loop variable 'i' on line 106
" artal.lua:182:7: (W213) unused loop variable 'i'
let l:pattern = '^.*:\(\d\+\):\(\d\+\): (\([WE]\)\(\d\+\)) \(.\+\)$'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:pattern)
if !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
\ && l:match[3] is# 'W'
\ && index(range(611, 614), str2nr(l:match[4])) >= 0
continue
endif
call add(l:output, {
\ 'lnum': l:match[1] + 0,
\ 'col': l:match[2] + 0,
\ 'type': l:match[3],
\ 'code': l:match[3] . l:match[4],
\ 'text': l:match[5],
\})
endfor
return l:output
endfunction
call ale#linter#Define('lua', {
\ 'name': 'luacheck',
\ 'executable': {b -> ale#Var(b, 'lua_luacheck_executable')},
\ 'command': function('ale_linters#lua#luacheck#GetCommand'),
\ 'callback': 'ale_linters#lua#luacheck#Handle',
\})