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" Author: Joshua Rubin <joshua@rubixconsulting.com>, Ben Reedy <https://github.com/breed808>
" Description: go build for Go files
" inspired by work from dzhou121 <dzhou121@gmail.com>
function! ale_linters#go#gobuild#GoEnv(buffer) abort
if exists('s:go_env')
return ''
endif
return 'go env GOPATH GOROOT'
endfunction
function! ale_linters#go#gobuild#GetCommand(buffer, goenv_output) abort
if !exists('s:go_env')
let s:go_env = {
\ 'GOPATH': a:goenv_output[0],
\ 'GOROOT': a:goenv_output[1],
\}
endif
" Run go test in local directory with relative path
return 'GOPATH=' . s:go_env.GOPATH
\ . ' cd ' . fnamemodify(bufname(a:buffer), ':.:h')
\ . ' && go test -c -o /dev/null ./'
endfunction
function! ale_linters#go#gobuild#Handler(buffer, lines) abort
return ale_linters#go#gobuild#HandleGoBuildErrors(a:buffer, bufname(a:buffer), a:lines)
endfunction
function! ale_linters#go#gobuild#HandleGoBuildErrors(buffer, full_filename, lines) abort
" Matches patterns line the following:
"
" file.go:27: missing argument for Printf("%s"): format reads arg 2, have only 1 args
" file.go:53:10: if block ends with a return statement, so drop this else and outdent its block (move short variable declaration to its own line if necessary)
" file.go:5:2: expected declaration, found 'STRING' "log"
" go test returns relative paths so use tail of filename as part of pattern matcher
let l:filename = fnamemodify(a:full_filename, ':t')
let l:path_pattern = '[a-zA-Z]\?\\\?:\?[[:alnum:]/\.\-_]\+'
let l:pattern = '^' . l:path_pattern . ':\(\d\+\):\?\(\d\+\)\?:\? \(.\+\)$'
let l:output = []
for l:line in a:lines
let l:match = matchlist(l:line, l:pattern)
" Omit errors from imported go packages
if len(l:match) == 0 || l:line !~ l:filename
continue
endif
" vcol is Needed to indicate that the column is a character.
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': l:match[1] + 0,
\ 'vcol': 0,
\ 'col': l:match[2] + 0,
\ 'text': l:match[3],
\ 'type': 'E',
\ 'nr': -1,
\})
endfor
return l:output
endfunction
call ale#linter#Define('go', {
\ 'name': 'go build',
\ 'executable': 'go',
\ 'command_chain': [
\ {'callback': 'ale_linters#go#gobuild#GoEnv', 'output_stream': 'stdout'},
\ {'callback': 'ale_linters#go#gobuild#GetCommand', 'output_stream': 'stderr'},
\ ],
\ 'callback': 'ale_linters#go#gobuild#Handler',
\ 'lint_file': 1,
\})
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