Re: [PATCH] Make git-diff-tree indicate when it flushes

Junio C Hamano writes:

I'm asking git-diff-tree which of a given set of commits affect any of a set of paths, so that gitk can highlight the ones that do. Furthermore I want to be able to use the git-diff-tree process for multiple sets of commit IDs.

If I don't use -s, then I will get lines starting with a ":" after the commit IDs of the commits that do affect the set of paths I specified. That means I get a definite indication for all except the last commit I send. For the last commit I still don't know whether the absence of any ":" lines means that the commit doesn't affect the set of paths, or that git-diff-tree is being slow. So I still need something like the patch I sent.

I could get the indication I want (with or without -s) if I close the pipe going to the git-diff-tree process. But then the process will exit, and I want it to stay around so that I don't have to pay the fork/exec and startup time of git-diff-tree next time (which will be when the user scrolls the commit list window or asks to move to the next highlighted commit).

Thus, --always (with or without -s) doesn't quite do what I need.

Paul.