threads / patch / 6495

patchgit-checkout -m: fix merge case

Subject: [PATCH] git-checkout -m: fix merge case

## tl;dr

One message between Jan 24, 2007 and Jan 24, 2007. Diffs are folded; open one to read it.

replies: 0people: 1as markdown or json

Junio C Hamano· Jan 24, 2007, 01:42 UTC · lore

Commit c1a4278e switched the "merging checkout" implementation from 3-way read-tree to merge-recursive, but forgot that merge-recursive will signal an unmerged state with its own exit status code. This prevented the clean-up phase (paths cleanly merged should not be updated in the index) from running.

Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 git-checkout.sh |   15 +++++----------
 t/t7201-co.sh   |   28 +++++++++++++++++++++++++++-
 2 files changed, 32 insertions(+), 11 deletions(-)
Show changes to 2 files +32 −11

git-checkout.sh, t/t7201-co.sh

diff --git a/git-checkout.sh b/git-checkout.sh
index e02d4d8..c52f352 100755
--- a/git-checkout.sh
+++ b/git-checkout.sh
@@ -200,17 +200,12 @@ else
 	# Match the index to the working tree, and do a three-way.
     	git diff-files --name-only | git update-index --remove --stdin &&
 	work=`git write-tree` &&
-	git read-tree --reset -u $new &&
-	eval GITHEAD_$new=${new_name:-${branch:-$new}} GITHEAD_$work=local &&
-	export GITHEAD_$new GITHEAD_$work &&
-	git merge-recursive $old -- $new $work || exit
+	git read-tree --reset -u $new || exit
 
-	if result=`git write-tree 2>/dev/null`
-	then
-	    echo >&2 "Trivially automerged."
-	else
-	    git merge-index -o git-merge-one-file -a
-	fi
+	eval GITHEAD_$new=${new_name:-${branch:-$new}} &&
+	eval GITHEAD_$work=local &&
+	export GITHEAD_$new GITHEAD_$work &&
+	git merge-recursive $old -- $new $work
 
 	# Do not register the cleanly merged paths in the index yet.
 	# this is not a real merge before committing, but just carrying
diff --git a/t/t7201-co.sh b/t/t7201-co.sh
index 315fa35..867bbd2 100755
--- a/t/t7201-co.sh
+++ b/t/t7201-co.sh
@@ -100,7 +100,33 @@ test_expect_success "checkout -m with dirty tree, renamed" '
 	git checkout -m renamer &&
 	fill 1 3 4 5 7 8 >expect &&
 	diff expect uno &&
-	! test -f one
+	! test -f one &&
+	git diff --cached >current &&
+	! test -s current
+
+'
+
+test_expect_success 'checkout -m with merge conflict' '
+
+	git checkout -f master && git clean &&
+
+	fill 1 T 3 4 5 6 S 8 >one &&
+	if git checkout renamer
+	then
+		echo Not happy
+		false
+	else
+		echo "happy - failed correctly"
+	fi &&
+
+	git checkout -m renamer &&
+
+	git diff master:one :3:uno |
+	sed -e "1,/^@@/d" -e "/^ /d" -e "s/^-/d/" -e "s/^+/a/" >current &&
+	fill d2 aT d7 aS >expect &&
+	diff current expect &&
+	git diff --cached two >current &&
+	! test -s current
 '
 
 test_done
-- 
1.5.0.rc2.gd7eb

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