I staged a few changes to be committed. How do I see the diffs of all files which are staged for the next commit? Is there a handy one-liner for this?
git status only shows names of files which are staged, but I want to see the actual diffs.
The git-diff(1) man page says:
git diff [--options] [--] […]
This form is to view the changes you made relative to the index (staging area for the next commit). In other words, the differences are what you could tell git to further add to the index but you still haven't. You can stage these changes by using git-add(1).
It should just be:
git diff --cached
--cached means show the changes in the cache/index (i.e. staged changes) against the current HEAD. --staged is a synonym for --cached.
--staged and --cached does not point to HEAD, just difference with respect to HEAD. If you cherry pick what to commit using git add --patch (or git add -p), --staged will return what is staged.