Yaroslav Halchenko <yoh@xxxxxxxxxxxxxx> 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.
