Re: [PATCH] scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks

[Genki Sky]

Hi Alexander,

On Sun, 11 Nov 2018 16:48:38 +0200, Alexander Kapshuk <alexander.kapshuk@xxxxxxxxx> wrote:
> Piping the output of the git command to grep and using the return status
> of grep as the test condition within the if block, would be sufficient
> to determine whether or not '-dirty' should be printed.
>
> Sample run:
> % if git --no-optional-locks \
>         status -uno --porcelain \
>         2>/dev/null |
>         grep -qv '^.. scripts/package'
> then
>         printf '%s' -dirty
> fi

I don't think this works well for us. We need to check whether
--no-optional-locks is available before using the output to determine
whether the tree is dirty or not. If it's not available, we have to
fall back on diff-index. Let me know if I'm misreading you.