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Fix FindCompileCommands to handle absolute paths in c_build_dir_names

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Use ale#path#GetAbsPath to resolve build directory paths, which correctly
handles both absolute and relative paths. When the dirname is absolute,
derive the project root from the parent of the build directory.

Co-authored-by: w0rp <3518142+w0rp@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-02-12 00:24:39 +00:00
parent 7f79d30fb9
commit 520c775c6a
2 changed files with 42 additions and 2 deletions
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11
autoload/ale/c.vim
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@@ -249,11 +249,18 @@ function! ale#c#FindCompileCommands(buffer) abort
" Search in build directories if we can't find it in the project.
for l:path in ale#path#Upwards(expand('#' . a:buffer . ':p:h'))
for l:dirname in ale#Var(a:buffer, 'c_build_dir_names')
let l:c_build_dir = l:path . s:sep . l:dirname
let l:c_build_dir = ale#path#GetAbsPath(l:path, l:dirname)
let l:json_file = l:c_build_dir . s:sep . 'compile_commands.json'
if filereadable(l:json_file)
return [l:path, l:json_file]
" Use the parent of the build dir for absolute
" paths, otherwise use the path found by searching
" upwards from the file.
let l:root = ale#path#IsAbsolute(l:dirname)
\ ? fnamemodify(l:c_build_dir, ':h')
\ : l:path
return [l:root, l:json_file]
endif
endfor
endfor