Re: git-commit: select which files to commit while editing the commit message

[Junio C Hamano <junkio@cox.net>]

Seth Falcon <sethfalcon@gmail.com> writes:

> I don't think I understand what an --exclude=<pattern> option would
> do, but I'm pretty sure it doesn't help the use case I'm thinking of:
>
>    Editing away, you've made changes in 8 files.
>
>    Reviewing diff, you want to commit 6 of those and continue working
>    on the other two.
>
>    It seems that there could be a less manual way than 
>    git update-index f1 f2 ... f6
>
>
> Hmm, maybe I could do:
>
>    git diff --name-only > changed
>    ## edit changed
>    cat changed|xargs git update-index
>
> I suppose this could be wrapped in a simple way to bring up an editor.

Note that output of cat piped to anything is almost always a bad
programming ;-)

Maybe the "git add --interactive" would give you a transcript
like this:

        $ git add --interactive '*.c' '*.h'
	showing list of modified files...
         1) bozbar.c 2) filfre.c 3) frotz.h 4) nitfol.c 5) rezrov.h
         6) xyzzy.c  7) yomin.h  8) z.c
        choice> 2 3 5 6 7
	showing list of modified files...
         1) bozbar.c 2* filfre.c 3* frotz.h 4) nitfol.c 5* rezrov.h
         6* xyzzy.c  7* yomin.h  8) z.c
        choice> 4+
	showing "git diff -- nitfol.c"...
        diff --git a/nitfol.c b/nitfol.c
        @@ -22,x +22,y @@
         {
        -	int i;
        +	long i;
        +	i = 314;
	 
        stage this hunk [Yes/No/All/Done]? y
        ...
 
The latter half is to come up with a subset of diff and then run
"git-apply --cached" to update only the index with the chosen
hunks.