Re: diff against a tag ?

From: Junio C Hamano <junkio@cox.net>
Date: Apr 28, 2005, 20:42 UTC
Message-ID: <7vpswe7hvj.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <20050428200953.GD8514@redhat.com>

>>>>> "DJ" == Dave Jones <davej@redhat.com> writes:

DJ> Maybe I missed this in the discussion on tags recently DJ> (I kinda tuned out after a while on that thread).

DJ> Is there an easy way to express 'show me the diff DJ> between HEAD and 2.6.12rc3' today ?

Depends on your definition of today, but with the patch below I sent today, you can say "diff-tree -p $tag $(cat .git/HEAD)".

    Subject: [PATCH] Rename and extend read_tree_with_tree_or_commit_sha1
    Date:	Thu, 28 Apr 2005 12:15:43 -0700
    Message-ID: <7vu0lq7lwg.fsf@assigned-by-dhcp.cox.net>

    This patch renames read_tree_with_tree_or_commit_sha1() to
    read_object_with_reference() and extends it to automatically
    dereference not just "commit" objects but "tag" objects.  With
    this patch, you can say e.g.:

        ls-tree $tag
        read-tree -m $(merge-base $tag $HEAD) $tag $HEAD
        diff-cache $tag
        diff-tree $tag $HEAD