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[PATCH] rebase: Squelch the "fatal: Not an error." message

From
Kevin Ballard <kevin@sb.org>
Date
Mar 24, 2010, 00:03 UTC
Message-ID
<C07F26A5-6BAD-433D-B1FF-A08DC8E0EA74@sb.org>

When `git rebase --onto newbase upstream` is executed with upstream being equal to the current commit, `git rebase` will call `git format-patch` with "upstream..upstream" as the commits to generate patches for. This causes a spurious error message to be thrown which should be squelched.

Signed-off-by: Kevin Ballard <kevin@sb.org>
---
This patch was inspired by a common error encountered when using `git pull --rebase`, particularly in the case where there are no local commits that need rebasing and the fetched head was a force-pushed history modification (e.g. from git filter-branch). The error itself is actually caused by running `git rebase --onto newbase upstream` where upstream is the same commit as HEAD. This causes `git format-patch` to be called with "upstream..upstream" as the range and it complains. My solution was to squelch all errors from `git format-patch`, though I am unsure if the "fatal: Not a range." error is the only error that can be raised in this situation.

git-rebase.sh | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/git-rebase.sh b/git-rebase.sh
index e0eb956..8868dee 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -544,7 +544,7 @@ fi
 if test -z "$do_merge"
 then
 	git format-patch -k --stdout --full-index --ignore-if-in-upstream \
-		$root_flag "$revisions" |
+		$root_flag "$revisions" 2>/dev/null |
 	git am $git_am_opt --rebasing --resolvemsg="$RESOLVEMSG" &&
 	move_to_original_branch
 	ret=$?
Next: Kevin Ballard
Message 1 of 6 in “rebase: Squelch the "fatal: Not an error." message”
  1. rebase: Squelch the "fatal: Not an error." messageKevin Ballard, Mar 24, 2010
  2. Kevin BallardMar 25, 2010
  3. Junio C HamanoMar 26, 2010
  4. Kevin BallardMar 26, 2010
  5. Kevin BallardMar 27, 2010
  6. format-patch: Squelch 'fatal: Not a range." errorKevin Ballard, Mar 30, 2010

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