Merge branch 'mm/rebase-i-post-rewrite-exec' into maint

"git rebase -i" fired post-rewrite hook when it shouldn't (namely,
when it was told to stop sequencing with 'exec' insn).

* mm/rebase-i-post-rewrite-exec:
  t5407: use <<- to align the expected output
  rebase -i: fix post-rewrite hook with failed exec command
  rebase -i: demonstrate incorrect behavior of post-rewrite

git-rebase--interactive.sh

@@ -502,7 +502,7 @@ do_pick () {
 }
 
 do_next () {
-	rm -f "$msg" "$author_script" "$amend" || exit
+	rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit
 	read -r command sha1 rest < "$todo"
 	case "$command" in
 	"$comment_char"*|''|noop)
@@ -592,9 +592,6 @@ do_next () {
 		read -r command rest < "$todo"
 		mark_action_done
 		printf 'Executing: %s\n' "$rest"
-		# "exec" command doesn't take a sha1 in the todo-list.
-		# => can't just use $sha1 here.
-		git rev-parse --verify HEAD > "$state_dir"/stopped-sha
 		${SHELL:-@SHELL_PATH@} -c "$rest" # Actual execution
 		status=$?
 		# Run in subshell because require_clean_work_tree can die.
@@ -890,7 +887,10 @@ first and then run 'git rebase --continue' again."
 		fi
 	fi
 
+	if test -r "$state_dir"/stopped-sha
+	then
 		record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
+	fi
 
 	require_clean_work_tree "rebase"
 	do_rest

t/t5407-post-rewrite-hook.sh

@@ -61,7 +61,7 @@ test_expect_success 'git rebase' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD^)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
@@ -77,7 +77,7 @@ test_expect_success 'git rebase --skip' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
 	verify_hook_input
@@ -89,7 +89,7 @@ test_expect_success 'git rebase --skip the last one' '
 	test_must_fail git rebase --onto D A &&
 	git rebase --skip &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse E) $(git rev-parse HEAD)
 	EOF
 	verify_hook_input
@@ -103,7 +103,7 @@ test_expect_success 'git rebase -m' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD^)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
@@ -119,7 +119,7 @@ test_expect_success 'git rebase -m --skip' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
 	verify_hook_input
@@ -148,7 +148,7 @@ test_expect_success 'git rebase -i (unchanged)' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD^)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
@@ -163,7 +163,7 @@ test_expect_success 'git rebase -i (skip)' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
 	verify_hook_input
@@ -177,7 +177,7 @@ test_expect_success 'git rebase -i (squash)' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
@@ -189,7 +189,7 @@ test_expect_success 'git rebase -i (fixup without conflict)' '
 	clear_hook_input &&
 	FAKE_LINES="1 fixup 2" git rebase -i B &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF
@@ -205,7 +205,24 @@ test_expect_success 'git rebase -i (double edit)' '
 	git add foo &&
 	git rebase --continue &&
 	echo rebase >expected.args &&
-	cat >expected.data <<EOF &&
+	cat >expected.data <<-EOF &&
+	$(git rev-parse C) $(git rev-parse HEAD^)
+	$(git rev-parse D) $(git rev-parse HEAD)
+	EOF
+	verify_hook_input
+'
+
+test_expect_success 'git rebase -i (exec)' '
+	git reset --hard D &&
+	clear_hook_input &&
+	FAKE_LINES="edit 1 exec_false 2" git rebase -i B &&
+	echo something >bar &&
+	git add bar &&
+	# Fails because of exec false
+	test_must_fail git rebase --continue &&
+	git rebase --continue &&
+	echo rebase >expected.args &&
+	cat >expected.data <<-EOF &&
 	$(git rev-parse C) $(git rev-parse HEAD^)
 	$(git rev-parse D) $(git rev-parse HEAD)
 	EOF