122 lines
3.7 KiB
VimL
122 lines
3.7 KiB
VimL
" Author: hauleth - https://github.com/hauleth
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" always, yes, never
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call ale#Set('dockerfile_hadolint_use_docker', 'never')
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call ale#Set('dockerfile_hadolint_docker_image', 'hadolint/hadolint')
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function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
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" Matches patterns line the following:
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"
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" -:19 DL3001 warning: Pipe chain should start with a raw value.
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" /dev/stdin:19:3 unexpected thing
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let l:pattern = '\v^%(/dev/stdin|-):(\d+):?(\d+)? ((DL|SC)(\d+) )?((.+)?: )?(.+)$'
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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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let l:lnum = 0
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let l:colnum = 0
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if l:match[1] isnot# ''
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let l:lnum = l:match[1] + 0
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endif
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if l:match[2] isnot# ''
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let l:colnum = l:match[2] + 0
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endif
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" Shellcheck knows a 'style' severity - pin it to info level as well.
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if l:match[7] is# 'style'
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let l:type = 'I'
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elseif l:match[7] is# 'info'
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let l:type = 'I'
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elseif l:match[7] is# 'warning'
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let l:type = 'W'
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else
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let l:type = 'E'
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endif
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let l:text = l:match[8]
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let l:detail = l:match[8]
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let l:domain = 'https://github.com/hadolint/hadolint/wiki/'
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let l:code = ''
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let l:link = ''
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if l:match[4] is# 'SC'
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let l:domain = 'https://github.com/koalaman/shellcheck/wiki/'
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endif
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if l:match[5] isnot# ''
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let l:code = l:match[4] . l:match[5]
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let l:link = ' ( ' . l:domain . l:code . ' )'
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let l:text = l:code . ': ' . l:detail
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let l:detail = l:code . l:link . "\n\n" . l:detail
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else
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let l:type = 'E'
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let l:detail = 'hadolint could not parse the file because of a syntax error.'
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endif
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let l:line_output = {
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\ 'lnum': l:lnum,
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\ 'col': l:colnum,
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\ 'type': l:type,
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\ 'text': l:text,
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\ 'detail': l:detail
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\}
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if l:code isnot# ''
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let l:line_output['code'] = l:code
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endif
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call add(l:output, l:line_output)
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endfor
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return l:output
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endfunction
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" This is a little different than the typical 'executable' callback. We want
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" to afford the user the chance to say always use docker, never use docker,
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" and use docker if the hadolint executable is not present on the system.
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"
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" In the case of neither docker nor hadolint executables being present, it
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" really doesn't matter which we return -- either will have the effect of
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" 'nope, can't use this linter!'.
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function! ale_linters#dockerfile#hadolint#GetExecutable(buffer) abort
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let l:use_docker = ale#Var(a:buffer, 'dockerfile_hadolint_use_docker')
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" check for mandatory directives
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if l:use_docker is# 'never'
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return 'hadolint'
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elseif l:use_docker is# 'always'
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return 'docker'
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endif
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" if we reach here, we want to use 'hadolint' if present...
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if executable('hadolint')
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return 'hadolint'
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endif
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"... and 'docker' as a fallback.
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return 'docker'
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endfunction
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function! ale_linters#dockerfile#hadolint#GetCommand(buffer) abort
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let l:command = ale_linters#dockerfile#hadolint#GetExecutable(a:buffer)
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let l:opts = '--no-color -'
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if l:command is# 'docker'
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return printf('docker run --rm -i %s hadolint %s',
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\ ale#Var(a:buffer, 'dockerfile_hadolint_docker_image'),
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\ l:opts)
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endif
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return 'hadolint ' . l:opts
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endfunction
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call ale#linter#Define('dockerfile', {
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\ 'name': 'hadolint',
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\ 'executable': function('ale_linters#dockerfile#hadolint#GetExecutable'),
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\ 'command': function('ale_linters#dockerfile#hadolint#GetCommand'),
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\ 'callback': 'ale_linters#dockerfile#hadolint#Handle',
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\})
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