Re: [PATCH v4 2/2] attr: add flag `--revision` to work with revisions

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Hi Eric

On 21/12/2022 21:13, Eric Sunshine wrote:
On Wed, Dec 21, 2022 at 3:58 PM Phillip Wood <phillip.wood123@xxxxxxxxx> wrote:
On 21/12/2022 13:47, Karthik Nayak wrote:
Since we use a tree-ish object, the user can pass "--revision
HEAD:subdirectory" and all the attributes will be looked up as if
subdirectory was the root directory of the repository.

We should be clear in the documentation and option help that --revision
takes a tree-ish (i.e. --revision=<tree-ish>). Maybe calling the option
--tree would be clearer.

If that's the case, shouldn't this be called --source (or some
variation thereof) for consistency[1] with git-restore?

Yes, that's a good suggestion, sorry I'd forgotten that you'd mentioned that before.

[1]: https://lore.kernel.org/git/CAPig+cT_xz3m-3kkL_Scf0opNXkikU94kSF46VO8KHkNMWbGzg@xxxxxxxxxxxxxx/

+attr_check_revision () {
+     path="$1" expect="$2" revision="$3" git_opts="$4" &&

Is that line valid posix shell? I know it works with local (which is not
in posix) but is it allowed for global variables?

This is fine as-is; it's POSIX.

Thanks for clarifying that

Best Wishes

Phillip



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