Re: Git Bug - diff in commit message.

Michael Witten [off-list ref] writes:

It would appear that `git rebase' is in fact producing patches with
`git format-patch' and then applying the resulting patches with `git
am', which gets confused by your inline diff; this can be clearly seen
in the `git-rebase--am[.sh]' file.

Perhaps `git rebase' should be reimplemented to use `git cherry-pick',
or does that suffer from the same problem?

I think it just is a simple matter of this one-liner.  We were already
bending backwards to preserve the original message by not parsing and
running stripspace the message in the output from mailinfo, and instead
using the log message from the original, but were still using the patch
text that came from mailinfo that was split incorrectly because it was
fooled by the diff in the commit log message.

In the longer term, I think "git-rebase--am.sh" should be rewritten to
have format-patch avoid the cost of actually generating the patch text,
and the "mailinfo" call that comes above the context shown in this patch
should be made conditional---when using "am" for rebasing we do not really
care anything but the commit object names, and everything else is figured
out from the commit this codepath.

 git-am.sh |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/git-am.sh b/git-am.sh
index 016b505..9a4cb2d 100755
--- a/git-am.sh
+++ b/git-am.sh

@@ -632,6 +632,7 @@ To restore the original branch and stop patching run \"\$cmdline --abort\"."
 			sed -e '1,/^$/d' >"$dotest/msg-clean"
 			echo "$commit" > "$dotest/original-commit"
 			get_author_ident_from_commit "$commit" > "$dotest/author-script"
+			git diff-tree --root --binary -m --first-parent "$commit" >"$dotest/patch"
 		else
 			{
 				sed -n '/^Subject/ s/Subject: //p' "$dotest/info"