Re: [PATCH 3/3] stash: require a clean index to apply

[Jeff King <peff@peff.net>]

On Sun, Jun 07, 2015 at 08:40:01AM -0400, Jeff King wrote:

> Are you running flake8 across the whole tree, or just on the files with
> proposed changes? Does it need to see the whole tree? If you can get
> away with feeding it single files, then it should be very efficient to
> loop over the output of "git diff-index HEAD" and feed the proposed
> updated blobs to it. If you can get away with feeding single lines, then
> feeding the actual diffs to it would be even better, but I assume that
> is not enough (I do not use flake8 myself).

Like I said, I do not use it, but peeking at the flake8 source code, it
has an "--install-hook" option to set up a pre-commit hook. It looks
like the hook runs "git diff-index --cached --name-only HEAD" to get
the list of modified files, filters that only for "*.py", and then
copies the results into a temporary directory to operate on.

-Peff