fix inifinite loop due to broken symlink and new requires in git-svn

git-infinite-loop.patch

@@ -0,0 +1,39 @@
+diff --git a/refs.c b/refs.c
+index 67d6745..ddb9a77 100644
+--- a/refs.c
++++ b/refs.c
+@@ -1422,6 +1422,7 @@ static struct ref_dir *get_loose_refs(struct ref_cache *refs)
+ /* We allow "recursive" symbolic refs. Only within reason, though */
+ #define MAXDEPTH 5
+ #define MAXREFLEN (1024)
++#define MAXRETRIES 5
+ 
+ /*
+  * Called by resolve_gitlink_ref_recursive() after it failed to read
+@@ -1576,6 +1577,7 @@ const char *resolve_ref_unsafe(const char *refname, int resolve_flags, unsigned
+ 		struct stat st;
+ 		char *buf;
+ 		int fd;
++		int retries = 0;
+ 
+ 		if (--depth < 0) {
+ 			errno = ELOOP;
+@@ -1612,7 +1614,8 @@ const char *resolve_ref_unsafe(const char *refname, int resolve_flags, unsigned
+ 		if (S_ISLNK(st.st_mode)) {
+ 			len = readlink(path, buffer, sizeof(buffer)-1);
+ 			if (len < 0) {
+-				if (errno == ENOENT || errno == EINVAL)
++				if ((errno == ENOENT || errno == EINVAL) &&
++					retries++ < MAXRETRIES)
+ 					/* inconsistent with lstat; retry */
+ 					goto stat_ref;
+ 				else
+@@ -1645,7 +1648,7 @@ const char *resolve_ref_unsafe(const char *refname, int resolve_flags, unsigned
+ 		 */
+ 		fd = open(path, O_RDONLY);
+ 		if (fd < 0) {
+-			if (errno == ENOENT)
++			if (errno == ENOENT && retries++ < MAXRETRIES)
+ 				/* inconsistent with lstat; retry */
+ 				goto stat_ref;
+ 			else