Make the cache stat information comparator public.

diff --git a/read-cache.c b/read-cache.c
index 44b4b0fc69cef727b2a35c41b202e3a6bb424869..c42d2de330d20b599527547b1c7f130e8ec530c9 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -222,6 +222,29 @@ static int error(const char * string)
        return -1;
 }
 
+int cache_match_stat(struct cache_entry *ce, struct stat *st)
+{
+       unsigned int changed = 0;
+
+       if (ce->mtime.sec  != (unsigned int)st->st_mtim.tv_sec ||
+           ce->mtime.nsec != (unsigned int)st->st_mtim.tv_nsec)
+               changed |= MTIME_CHANGED;
+       if (ce->ctime.sec  != (unsigned int)st->st_ctim.tv_sec ||
+           ce->ctime.nsec != (unsigned int)st->st_ctim.tv_nsec)
+               changed |= CTIME_CHANGED;
+       if (ce->st_uid != (unsigned int)st->st_uid ||
+           ce->st_gid != (unsigned int)st->st_gid)
+               changed |= OWNER_CHANGED;
+       if (ce->st_mode != (unsigned int)st->st_mode)
+               changed |= MODE_CHANGED;
+       if (ce->st_dev != (unsigned int)st->st_dev ||
+           ce->st_ino != (unsigned int)st->st_ino)
+               changed |= INODE_CHANGED;
+       if (ce->st_size != (unsigned int)st->st_size)
+               changed |= DATA_CHANGED;
+       return changed;
+}
+
 static int cache_name_compare(const char *name1, int len1, const char *name2, int len2)
 {
        int len = len1 < len2 ? len1 : len2;