is_directory(): a generic helper function
A simple "grep -e stat --and -e S_ISDIR" revealed there are many
open-coded implementations of this function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/abspath.c b/abspath.c
index 0d56124..8194ce1 100644
--- a/abspath.c
+++ b/abspath.c
@@ -1,5 +1,16 @@
#include "cache.h"
+/*
+ * Do not use this for inspecting *tracked* content. When path is a
+ * symlink to a directory, we do not want to say it is a directory when
+ * dealing with tracked content in the working tree.
+ */
+int is_directory(const char *path)
+{
+ struct stat st;
+ return (!stat(path, &st) && S_ISDIR(st.st_mode));
+}
+
/* We allow "recursive" symbolic links. Only within reason, though. */
#define MAXDEPTH 5
@@ -17,7 +28,7 @@
die ("Too long path: %.*s", 60, path);
while (depth--) {
- if (stat(buf, &st) || !S_ISDIR(st.st_mode)) {
+ if (!is_directory(buf)) {
char *last_slash = strrchr(buf, '/');
if (last_slash) {
*last_slash = '\0';
diff --git a/builtin-clone.c b/builtin-clone.c
index c843529..a4b8790 100644
--- a/builtin-clone.c
+++ b/builtin-clone.c
@@ -77,7 +77,7 @@
for (i = 0; i < ARRAY_SIZE(suffix); i++) {
const char *path;
path = mkpath("%s%s", repo, suffix[i]);
- if (!stat(path, &st) && S_ISDIR(st.st_mode)) {
+ if (is_directory(path)) {
*is_bundle = 0;
return xstrdup(make_nonrelative_path(path));
}
@@ -140,13 +140,6 @@
return xstrndup(start, end - start);
}
-static int is_directory(const char *path)
-{
- struct stat buf;
-
- return !stat(path, &buf) && S_ISDIR(buf.st_mode);
-}
-
static void strip_trailing_slashes(char *dir)
{
char *end = dir + strlen(dir);
diff --git a/cache.h b/cache.h
index de8c2b6..ce1f630 100644
--- a/cache.h
+++ b/cache.h
@@ -533,6 +533,7 @@
{
return path[0] == '/' || has_dos_drive_prefix(path);
}
+int is_directory(const char *);
const char *make_absolute_path(const char *path);
const char *make_nonrelative_path(const char *path);
const char *make_relative_path(const char *abs, const char *base);
diff --git a/daemon.c b/daemon.c
index c315932..ab7a273 100644
--- a/daemon.c
+++ b/daemon.c
@@ -1115,13 +1115,9 @@
if (strict_paths && (!ok_paths || !*ok_paths))
die("option --strict-paths requires a whitelist");
- if (base_path) {
- struct stat st;
-
- if (stat(base_path, &st) || !S_ISDIR(st.st_mode))
- die("base-path '%s' does not exist or "
- "is not a directory", base_path);
- }
+ if (base_path && !is_directory(base_path))
+ die("base-path '%s' does not exist or is not a directory",
+ base_path);
if (inetd_mode) {
struct sockaddr_storage ss;
diff --git a/rerere.c b/rerere.c
index 323e493..c38886b 100644
--- a/rerere.c
+++ b/rerere.c
@@ -319,7 +319,6 @@
static int is_rerere_enabled(void)
{
- struct stat st;
const char *rr_cache;
int rr_cache_exists;
@@ -327,7 +326,7 @@
return 0;
rr_cache = git_path("rr-cache");
- rr_cache_exists = !stat(rr_cache, &st) && S_ISDIR(st.st_mode);
+ rr_cache_exists = is_directory(rr_cache);
if (rerere_enabled < 0)
return rr_cache_exists;
diff --git a/sha1_file.c b/sha1_file.c
index 9ee1ed1..ae550e8 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -250,7 +250,6 @@
*/
static int link_alt_odb_entry(const char * entry, int len, const char * relative_base, int depth)
{
- struct stat st;
const char *objdir = get_object_directory();
struct alternate_object_database *ent;
struct alternate_object_database *alt;
@@ -281,7 +280,7 @@
ent->base[pfxlen] = ent->base[entlen-1] = 0;
/* Detect cases where alternate disappeared */
- if (stat(ent->base, &st) || !S_ISDIR(st.st_mode)) {
+ if (!is_directory(ent->base)) {
error("object directory %s does not exist; "
"check .git/objects/info/alternates.",
ent->base);
