72dbd7f648
In the (unreleased) Nix 2.4 the error-messages have been reformatted[1]. This patch aims to retain proper `.nix`-support in `ale`, for both stable Nix (2.3 and older) and unstable Nix (2.4 and newer). [1] https://github.com/NixOS/nix/pull/3590
63 lines
1.8 KiB
VimL
63 lines
1.8 KiB
VimL
" Author: Alistair Bill <@alibabzo>
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" Author: Maximilian Bosch <maximilian@mbosch.me>
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" Description: nix-instantiate linter for nix files
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function! ale_linters#nix#nix#Command(buffer, output, meta) abort
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let l:version = a:output[0][22:]
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if l:version =~# '^\(2.4\|3\).*'
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return 'nix-instantiate --log-format internal-json --parse -'
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else
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return 'nix-instantiate --parse -'
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endif
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endfunction
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function! ale_linters#nix#nix#Handle(buffer, lines) abort
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let l:output = []
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if empty(a:lines)
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return l:output
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endif
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if a:lines[0] =~# '^@nix .*'
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for l:line in a:lines
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if l:line =~# '^@nix .*'
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let l:result = json_decode(strpart(l:line, 4))
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if has_key(l:result, 'column')
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call add(l:output, {
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\ 'type': 'E',
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\ 'lnum': l:result.line,
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\ 'col': l:result.column,
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\ 'text': l:result.raw_msg
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\})
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endif
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endif
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endfor
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else
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let l:pattern = '^\(.\+\): \(.\+\) at .*:\(\d\+\):\(\d\+\)$'
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for l:match in ale#util#GetMatches(a:lines, l:pattern)
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call add(l:output, {
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\ 'lnum': l:match[3] + 0,
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\ 'col': l:match[4] + 0,
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\ 'text': l:match[1] . ': ' . substitute(l:match[2], ',$', '', ''),
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\ 'type': l:match[1] =~# '^error' ? 'E' : 'W',
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\})
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endfor
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endif
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return l:output
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endfunction
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call ale#linter#Define('nix', {
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\ 'name': 'nix',
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\ 'output_stream': 'stderr',
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\ 'executable': 'nix-instantiate',
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\ 'command': {buffer -> ale#command#Run(
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\ buffer,
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\ 'nix-instantiate --version',
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\ function('ale_linters#nix#nix#Command')
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\ )},
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\ 'callback': 'ale_linters#nix#nix#Handle',
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\})
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