Re: [PATCH v2 2/7] git-p4: match branches case insensitively if configured

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On Thu, 21 Mar 2019 at 22:32, Mazo, Andrey <amazo@xxxxxxxxxxxxxx> wrote:
>
> git-p4 knows how to handle case insensitivity in file paths
> if core.ignorecase is set.
> However, when determining a branch for a file,
> it still does a case-sensitive prefix match.
> This may result in some file changes to be lost on import.
>
> For example, given the following commits
>  1. add //depot/main/file1
>  2. add //depot/DirA/file2
>  3. add //depot/dira/file3
>  4. add //depot/DirA/file4
> and "branchList = main:DirA" branch mapping,
> commit 3 will be lost.
>
> So, do branch search case insensitively if running with core.ignorecase set.
> Teach splitFilesIntoBranches() to use the p4PathStartsWith() function
> for path prefix matches instead of always case-sensitive match.

I wonder what other code paths break due to this problem!

Looks reasonable but I fear there may be some other holes in there -
quickly looking through the code suggests there are several other
places this problem occurs.

Luke

>
> Signed-off-by: Andrey Mazo <amazo@xxxxxxxxxxxxxx>
> ---
>  git-p4.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/git-p4.py b/git-p4.py
> index c0a3068b6f..91c610f960 100755
> --- a/git-p4.py
> +++ b/git-p4.py
> @@ -2721,11 +2721,11 @@ def splitFilesIntoBranches(self, commit):
>                  relPath = self.stripRepoPath(path, self.depotPaths)
>
>              for branch in self.knownBranches.keys():
>                  # add a trailing slash so that a commit into qt/4.2foo
>                  # doesn't end up in qt/4.2, e.g.
> -                if relPath.startswith(branch + "/"):
> +                if p4PathStartsWith(relPath, branch + "/"):
>                      if branch not in branches:
>                          branches[branch] = []
>                      branches[branch].append(file)
>                      break
>
> --
> 2.19.2
>



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