Re: [PATCH] Make git-commit cleverer - have it figure out whether it needs -a automatically

Junio C Hamano [off-list ref] writes:

I think another exception should be needed.  If the index does
not match the working tree, it should not default to "-a".

Otherwise,

I think there needs a bit of explanation and additional step
that happened here.  This by the way is not a made-up example.
Everything, including the 20-minute away, were what happened
when I did the latest blame fix you saw a few days ago.

 * I am still futzing with blame from time to time, and have
   this change almost permanently in my working tree.

	$ cat P.diff
        diff --git a/builtin-blame.c b/builtin-blame.c
        index dc3ffea..46ce45c 100644
        --- a/builtin-blame.c
        +++ b/builtin-blame.c
        @@ -38,7 +38,7 @@ static int max_digits;
         static int max_score_digits;

         #ifndef DEBUG
        -#define DEBUG 0
        +#define DEBUG 1
         #endif

 * I also have the GIT-VERSION-GEN change in my working tree.

I want to fix another thing in pickaxe.

	$ edit builtin-blame.c

 * Of course I did tests here.

My wife calls me.  Away from desk for 20 minutes.  Later I come
back.

 * And then reverted the DEBUG back to 0 in preparation for
   "checking into the index"

	$ edit builtin-blame.c

	$ git update-index builtin-pickaxe.c

 * And then I reverted it back for later futing.

 	$ git apply P.diff ;# that is a permanent-temporary file.

I am so used to that name and did not realize that typo, and I
was not paying too much attention.  My wife calls me again.
Away from desk and back in 20 minutes.

	$ git commit -m 'git-blame: Another fix.'

Oops.

 * Oops here is not just that builtin-blame.c would have been
   committed; I'd almost never do "commit -a" in this repository,
   because it would take that "DEBUG 1" change _and_
   GIT-VERSION-GEN change into the commit.

So, please turn this "cleverness" off when the index does not
match the working tree.