Merge branch 'js/git-path-head-dot-lock-fix' into pu

"git rev-parse --git-path HEAD.lock" did not give the right path
when run in a secondary worktree.

* js/git-path-head-dot-lock-fix:
  git_path(): handle `.lock` files correctly
  t1400: wrap setup code in test case

path.c

@@ -268,7 +268,7 @@ static int trie_find(struct trie *root, const char *key, match_fn fn,
 	int result;
 	struct trie *child;
 
-	if (!*key) {
+	if (!*key || !strcmp(key, ".lock")) {
 		/* we have reached the end of the key */
 		if (root->value && !root->len)
 			return fn(key, root->value, baton);
@@ -288,7 +288,7 @@ static int trie_find(struct trie *root, const char *key, match_fn fn,
 
 	/* Matched the entire compressed section */
 	key += i;
-	if (!*key)
+	if (!*key || !strcmp(key, ".lock"))
 		/* End of key */
 		return fn(key, root->value, baton);
 

t/t1400-update-ref.sh

@@ -344,14 +344,16 @@ test_expect_success "verifying $m's log (logged by config)" '
 	test_cmp expect .git/logs/$m
 '
 
-git update-ref $m $D
-cat >.git/logs/$m <<EOF
-$Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
-$C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
-$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
-$F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
-$Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
-EOF
+test_expect_success 'set up for querying the reflog' '
+	git update-ref $m $D &&
+	cat >.git/logs/$m <<-EOF
+	$Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
+	$C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
+	$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
+	$F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
+	$Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
+	EOF
+'
 
 ed="Thu, 26 May 2005 18:32:00 -0500"
 gd="Thu, 26 May 2005 18:33:00 -0500"

t/t1500-rev-parse.sh

@@ -117,6 +117,21 @@ test_expect_success 'git-path inside sub-dir' '
 	test_cmp expect actual
 '
 
+test_expect_success 'git-path in worktree' '
+	test_tick &&
+	git commit --allow-empty -m empty &&
+	git worktree add --detach wt &&
+	test_write_lines >expect \
+		"$(pwd)/.git/worktrees/wt/logs/HEAD" \
+		"$(pwd)/.git/worktrees/wt/logs/HEAD.lock" \
+		"$(pwd)/.git/worktrees/wt/index" \
+		"$(pwd)/.git/worktrees/wt/index.lock" &&
+	git -C wt rev-parse >actual \
+		--git-path logs/HEAD --git-path logs/HEAD.lock \
+		--git-path index --git-path index.lock &&
+	test_cmp expect actual
+'
+
 test_expect_success 'rev-parse --is-shallow-repository in shallow repo' '
 	test_commit test_commit &&
 	echo true >expect &&