Yaroslav Halchenko <y...@onerussian.com> writes:
> command. ATM there is no non-interactive (via --patch/--interactive I
> think it is possible) way to commit selected subset of staged files not
> from the worktree (as it is done with "git commit file(s)") but from the
> index.
Hmph, so
edit A B C
git add A B
edit A B C
git commit --cached B
would create a commit that is different from the original HEAD by
the edit to file B you did in the first step, but not the edit to A
or C, or edit to B after you did "git add"?
That sounds like a useful feature. If you do not need that "exclude
the later edit since the last 'git add'", you can do "git commit B",
but if you added crufts to B in the working tree since you added a
good copy of B to the index, that would not do what you want to do.
Sounds like a good starter project for somebody who wants to try to
get their hands dirty. I think it is just the matter of updating
builtin/commit.c::prepare_index() where COMMIT_PARTIAL is handled,
skipping "(2) update the index with the given paths" when "--cached"
option is given, but doing everything else in that codepath.
