Enable ref log creation in git checkout -b.

diff --git a/read-tree.c b/read-tree.c
index 26f4f7e32308d6e60d6a6e2c294bda322b34fc05..e16e91b173163f2b514e965d5e5ba7b939ffa1de 100644 (file)
--- a/read-tree.c
+++ b/read-tree.c
@@ -12,6 +12,7 @@
 #include <sys/time.h>
 #include <signal.h>
 
+static int reset = 0;
 static int merge = 0;
 static int update = 0;
 static int index_only = 0;
@@ -416,6 +417,10 @@ static void verify_uptodate(struct cache_entry *ce)
                        return;
                errno = 0;
        }
+       if (reset) {
+               ce->ce_flags |= htons(CE_UPDATE);
+               return;
+       }
        if (errno == ENOENT)
                return;
        die("Entry '%s' not uptodate. Cannot merge.", ce->name);
@@ -684,8 +689,14 @@ static int oneway_merge(struct cache_entry **src)
                             merge_size);
 
        if (!a)
-               return 0;
+               return deleted_entry(old, NULL);
        if (old && same(old, a)) {
+               if (reset) {
+                       struct stat st;
+                       if (lstat(old->name, &st) ||
+                           ce_match_stat(old, &st, 1))
+                               old->ce_flags |= htons(CE_UPDATE);
+               }
                return keep_entry(old);
        }
        return merged_entry(a, NULL);
@@ -719,7 +730,7 @@ static struct cache_file cache_file;
 
 int main(int argc, char **argv)
 {
-       int i, newfd, reset, stage = 0;
+       int i, newfd, stage = 0;
        unsigned char sha1[20];
        merge_fn_t fn = NULL;
 
@@ -794,8 +805,8 @@ int main(int argc, char **argv)
                if (1 < index_only + update)
                        usage(read_tree_usage);
 
-               if (get_sha1(arg, sha1) < 0)
-                       usage(read_tree_usage);
+               if (get_sha1(arg, sha1))
+                       die("Not a valid object name %s", arg);
                if (list_tree(sha1) < 0)
                        die("failed to unpack tree object %s", arg);
                stage++;