summaryrefslogtreecommitdiff
path: root/update-cache.c
diff options
context:
space:
mode:
Diffstat (limited to 'update-cache.c')
-rw-r--r--update-cache.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/update-cache.c b/update-cache.c
index 4353b80..02c213c 100644
--- a/update-cache.c
+++ b/update-cache.c
@@ -12,7 +12,23 @@
* like "update-cache *" and suddenly having all the object
* files be revision controlled.
*/
-static int allow_add = 0, allow_remove = 0;
+static int allow_add = 0, allow_remove = 0, not_new = 0;
+
+/* Three functions to allow overloaded pointer return; see linux/err.h */
+static inline void *ERR_PTR(long error)
+{
+ return (void *) error;
+}
+
+static inline long PTR_ERR(const void *ptr)
+{
+ return (long) ptr;
+}
+
+static inline long IS_ERR(const void *ptr)
+{
+ return (unsigned long)ptr > (unsigned long)-1000L;
+}
static int index_fd(unsigned char *sha1, int fd, struct stat *st)
{
@@ -172,7 +188,7 @@ static struct cache_entry *refresh_entry(struct cache_entry *ce)
int changed, size;
if (stat(ce->name, &st) < 0)
- return NULL;
+ return ERR_PTR(-errno);
changed = cache_match_stat(ce, &st);
if (!changed)
@@ -183,10 +199,10 @@ static struct cache_entry *refresh_entry(struct cache_entry *ce)
* to refresh the entry - it's not going to match
*/
if (changed & MODE_CHANGED)
- return NULL;
+ return ERR_PTR(-EINVAL);
if (compare_data(ce, st.st_size))
- return NULL;
+ return ERR_PTR(-EINVAL);
size = ce_size(ce);
updated = malloc(size);
@@ -212,8 +228,9 @@ static void refresh_cache(void)
}
new = refresh_entry(ce);
- if (!new) {
- printf("%s: needs update\n", ce->name);
+ if (IS_ERR(new)) {
+ if (!(not_new && PTR_ERR(new) == -ENOENT))
+ printf("%s: needs update\n", ce->name);
continue;
}
active_cache[i] = new;
@@ -328,6 +345,10 @@ int main(int argc, char **argv)
i += 3;
continue;
}
+ if (!strcmp(path, "--ignore-missing")) {
+ not_new = 1;
+ continue;
+ }
die("unknown option %s", path);
}
if (!verify_path(path)) {