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Before the plugin tries to diff a file, it checks whether git is tracking the file. If git isn't tracking the file, it stops there and doesn't display any signs. If git is tracking the file, the plugin remembers so next time it can skip the check. When I introduced asynchronous diffing for NeoVim (18b78361), I made a refactoring mistake which caused the plugin on second and subsequent runs [to always think git is tracking a file][1]. The non-realtime diffs – the ones you get when you save a buffer – basically run `git diff FILE`. With an untracked file git returns nothing and exits successfully. So although the plugin erroneously thinks git is tracking the file, it gets an error-free, empty diff back and so removes any and all signs. Which means that the bug doesn't make any difference. However the realtime diffs write the buffer's contents to a temporary file, and write the file as staged in the index to a temporary file, then run `git diff FILE1 FILE2`. To write the staged version of the file we use `git show :FILE > TMPFILE`. When `FILE` isn't known to git, `git show :FILE` exits with an error. Unless, that is, [the filename contains square brackets and you're using git v2.5.0+][2], in which case git exits successfully with empty output. So if you're using git v2.5.0+, and you're editing an untracked file in a repository, and the filename contains square brackets, the plugin will think: git is tracking the file; the realtime diff is successful; the file in the index is empty; so every line in the the working copy must be an addition; hence a `+` sign on every line. [1]:18b7836168/autoload/gitgutter/diff.vim (L119-L121)[2]: http://comments.gmane.org/gmane.comp.version-control.git/285686 Closes #325.
11 lines
236 B
VimL
11 lines
236 B
VimL
source helper.vim
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let tmpfile = '[un]trackedFileWithinRepo.tmp'
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call system('touch '.tmpfile)
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execute 'edit '.tmpfile
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normal ggo*
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doautocmd CursorHold
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call DumpSigns('untrackedFileSquareBracketsWithinRepo')
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call system('rm '.tmpfile)
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