On Thu, Jul 23, 2015 at 09:06:01AM +0200, Sebastian Schuberth wrote: > My use-case (also see [1]) is that I wanted to checked whether some > given commits change nothing but whitespace. So I did > > if git diff-tree --quiet --ignore-space-change $commit; then > echo "$commit only changes whitespace." > fi > > just to see those SHA1s being printed to the console. > > I probably could instead do > > if git diff-tree --exit-code --ignore-space-change $commit > /dev/null > 2>&1; then > echo "$commit only changes whitespace." > fi > > but that defeats the purpose of having "--quiet" in the first place. I have not been following the thread closely, but I do not recall seeing anyone mention that the reason for the sha1-output is handing only a single commit-ish to diff-tree is what puts it into its log-like mode. Actually asking for a two-endpoint tree diff: git diff-tree --quiet --ignore-space-change $commit^ $commit will do what you want. I know that does not necessarily help the greater issue of "what diff-tree is doing is confusing", but perhaps that sheds some light at least on why it is doing what it is doing. :) -Peff -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html