update-index --split-index: do not split if $GIT_DIR is read only

diff --git a/git-compat-util.h b/git-compat-util.h
index 585ef8a79bd9fa66a34a840eae30658894a213f1..f6d3a46622d1de2497b56274a255d7bca46117dd 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -343,8 +343,11 @@ extern int ends_with(const char *str, const char *suffix);
 
 static inline const char *skip_prefix(const char *str, const char *prefix)
 {
-       size_t len = strlen(prefix);
-       return strncmp(str, prefix, len) ? NULL : str + len;
+       do {
+               if (!*prefix)
+                       return str;
+       } while (*str++ == *prefix++);
+       return NULL;
 }
 
 #if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
@@ -533,7 +536,7 @@ extern FILE *xfdopen(int fd, const char *mode);
 extern int xmkstemp(char *template);
 extern int xmkstemp_mode(char *template, int mode);
 extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
-extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
+extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1);
 
 static inline size_t xsize_t(off_t len)
 {
@@ -713,4 +716,11 @@ void warn_on_inaccessible(const char *path);
 /* Get the passwd entry for the UID of the current process. */
 struct passwd *xgetpwuid_self(void);
 
+#ifdef GMTIME_UNRELIABLE_ERRORS
+struct tm *git_gmtime(const time_t *);
+struct tm *git_gmtime_r(const time_t *, struct tm *);
+#define gmtime git_gmtime
+#define gmtime_r git_gmtime_r
+#endif
+
 #endif