remote rm/prune: print a message when writing packed-refs fails

diff --git a/git-compat-util.h b/git-compat-util.h
index 0c4e663928cb8fb03c73a6d3de6a506c7d98fc9a..59ecf218cbca417dc7d6e0a571f6c82111041225 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -192,7 +192,7 @@ extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
 struct itimerval {
        struct timeval it_interval;
        struct timeval it_value;
-}
+};
 #endif
 
 #ifdef NO_SETITIMER
@@ -326,6 +326,8 @@ static inline char *git_find_last_dir_sep(const char *path)
 
 #include "wildmatch.h"
 
+struct strbuf;
+
 /* General helper functions */
 extern void vreportf(const char *prefix, const char *err, va_list params);
 extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
@@ -777,11 +779,21 @@ void git_qsort(void *base, size_t nmemb, size_t size,
 
 /*
  * Preserves errno, prints a message, but gives no warning for ENOENT.
- * Always returns the return value of unlink(2).
+ * Returns 0 on success, which includes trying to unlink an object that does
+ * not exist.
  */
 int unlink_or_warn(const char *path);
+ /*
+  * Tries to unlink file.  Returns 0 if unlink succeeded
+  * or the file already didn't exist.  Returns -1 and
+  * appends a message to err suitable for
+  * 'error("%s", err->buf)' on error.
+  */
+int unlink_or_msg(const char *file, struct strbuf *err);
 /*
- * Likewise for rmdir(2).
+ * Preserves errno, prints a message, but gives no warning for ENOENT.
+ * Returns 0 on success, which includes trying to remove a directory that does
+ * not exist.
  */
 int rmdir_or_warn(const char *path);
 /*