path: remove unused git_path_topdir

src/path.c

@@ -274,24 +274,6 @@ size_t git_path_basename_offset(git_buf *buffer)
 	return 0;
 }
 
-const char *git_path_topdir(const char *path)
-{
-	size_t len;
-	ssize_t i;
-
-	assert(path);
-	len = strlen(path);
-
-	if (!len || path[len - 1] != '/')
-		return NULL;
-
-	for (i = (ssize_t)len - 2; i >= 0; --i)
-		if (path[i] == '/')
-			break;
-
-	return &path[i + 1];
-}
-
 int git_path_root(const char *path)
 {
 	int offset = 0, prefix_len;

src/path.h

@@ -67,8 +67,6 @@ extern int git_path_basename_r(git_buf *buffer, const char *path);
  */
 extern size_t git_path_basename_offset(git_buf *buffer);
 
-extern const char *git_path_topdir(const char *path);
-
 /**
  * Find offset to root of path if path has one.
  *

tests/core/path.c

@@ -32,15 +32,6 @@ check_basename(const char *A, const char *B)
 }
 
 static void
-check_topdir(const char *A, const char *B)
-{
-	const char *dir;
-
-	cl_assert((dir = git_path_topdir(A)) != NULL);
-	cl_assert_equal_s(B, dir);
-}
-
-static void
 check_joinpath(const char *path_a, const char *path_b, const char *expected_path)
 {
 	git_buf joined_path = GIT_BUF_INIT;
@@ -119,23 +110,6 @@ void test_core_path__01_basename(void)
 	check_basename(REP1024("/abc"), "abc");
 }
 
-/* get the latest component in a path */
-void test_core_path__02_topdir(void)
-{
-	check_topdir(".git/", ".git/");
-	check_topdir("/.git/", ".git/");
-	check_topdir("usr/local/.git/", ".git/");
-	check_topdir("./.git/", ".git/");
-	check_topdir("/usr/.git/", ".git/");
-	check_topdir("/", "/");
-	check_topdir("a/", "a/");
-
-	cl_assert(git_path_topdir("/usr/.git") == NULL);
-	cl_assert(git_path_topdir(".") == NULL);
-	cl_assert(git_path_topdir("") == NULL);
-	cl_assert(git_path_topdir("a") == NULL);
-}
-
 /* properly join path components */
 void test_core_path__05_joins(void)
 {