From: David Turner <dturner@twopensource.com>
Date: Tue, 03 Nov 2015 00:27:49 GMT
Subject: Re: Strange diff-index output
Message-ID: <1446510469.4131.35.camel@twopensource.com>
In-Reply-To: <CABxGUTj-5vdmyVGkKuoMdBAG2EAQvLJNYLLA++T2hNFvGRmb0w@mail.gmail.com>

On Tue, 2015-11-03 at 12:59 +1300, Ch'Gans wrote:
> Hi there,
> 
> We're using a script to verify that what we are building is clean
> against our git repository, for this we're using "git rev-parse
> --short HEAD" to get the current hash and "git diff-index --quiet
> HEAD" to check for local modification.

See this note from the git diff-index man page:
           Note
           As with other commands of this type, git diff-index does not
           actually look at the contents of the file at all. So maybe
           kernel/sched.c hasn’t actually changed, and it’s just that
you
           touched it. In either case, it’s a note that you need to git
           update-index it to make the index be in sync.

You can either add an update-index to your script, or use git status
--porcelain.