#include "cache.h"
#include <errno.h>
-#include <ctype.h>
/* We allow "recursive" symbolic refs. Only within reason, though */
#define MAXDEPTH 5
#define USE_SYMLINK_HEAD 1
#endif
-int validate_symref(const char *path)
-{
- struct stat st;
- char *buf, buffer[256];
- int len, fd;
-
- if (lstat(path, &st) < 0)
- return -1;
-
- /* Make sure it is a "refs/.." symlink */
- if (S_ISLNK(st.st_mode)) {
- len = readlink(path, buffer, sizeof(buffer)-1);
- if (len >= 5 && !memcmp("refs/", buffer, 5))
- return 0;
- return -1;
- }
-
- /*
- * Anything else, just open it and try to see if it is a symbolic ref.
- */
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return -1;
- len = read(fd, buffer, sizeof(buffer)-1);
- close(fd);
-
- /*
- * Is it a symbolic ref?
- */
- if (len < 4 || memcmp("ref:", buffer, 4))
- return -1;
- buf = buffer + 4;
- len -= 4;
- while (len && isspace(*buf))
- buf++, len--;
- if (len >= 5 && !memcmp("refs/", buf, 5))
- return 0;
- return -1;
-}
-
const char *resolve_ref(const char *path, unsigned char *sha1, int reading)
{
int depth = MAXDEPTH, len;
int create_symref(const char *git_HEAD, const char *refs_heads_master)
{
-#if USE_SYMLINK_HEAD
- unlink(git_HEAD);
- return symlink(refs_heads_master, git_HEAD);
-#else
const char *lockpath;
char ref[1000];
int fd, len, written;
+#if USE_SYMLINK_HEAD
+ if (!only_use_symrefs) {
+ unlink(git_HEAD);
+ if (!symlink(refs_heads_master, git_HEAD))
+ return 0;
+ fprintf(stderr, "no symlink - falling back to symbolic ref\n");
+ }
+#endif
+
len = snprintf(ref, sizeof(ref), "ref: %s\n", refs_heads_master);
if (sizeof(ref) <= len) {
error("refname too long: %s", refs_heads_master);
return -3;
}
return 0;
-#endif
}
int read_ref(const char *filename, unsigned char *sha1)