setup: Provide GIT_PREFIX to built-ins

diff --git a/remote.c b/remote.c
index e3afecdb1069a244493e906b5e16a96dc47535d3..ca42a126ad04514f0ed8378768ebce98cfc5a659 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -443,6 +443,8 @@ static int handle_config(const char *key, const char *value, void *cb)
        } else if (!strcmp(subkey, ".tagopt")) {
                if (!strcmp(value, "--no-tags"))
                        remote->fetch_tags = -1;
+               else if (!strcmp(value, "--tags"))
+                       remote->fetch_tags = 2;
        } else if (!strcmp(subkey, ".proxy")) {
                return git_config_string((const char **)&remote->http_proxy,
                                         key, value);
@@ -476,7 +478,7 @@ static void read_config(void)
        unsigned char sha1[20];
        const char *head_ref;
        int flag;
-       if (default_remote_name) // did this already
+       if (default_remote_name) /* did this already */
                return;
        default_remote_name = xstrdup("origin");
        current_branch = NULL;
@@ -491,7 +493,7 @@ static void read_config(void)
 }
 
 /*
- * We need to make sure the tracking branches are well formed, but a
+ * We need to make sure the remote-tracking branches are well formed, but a
  * wildcard refspec in "struct refspec" must have a trailing slash. We
  * temporarily drop the trailing '/' while calling check_ref_format(),
  * and put it back.  The caller knows that a CHECK_REF_FORMAT_ONELEVEL
@@ -657,10 +659,9 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
 
 int valid_fetch_refspec(const char *fetch_refspec_str)
 {
-       const char *fetch_refspec[] = { fetch_refspec_str };
        struct refspec *refspec;
 
-       refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
+       refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
        free_refspecs(refspec, 1);
        return !!refspec;
 }
@@ -753,7 +754,7 @@ int for_each_remote(each_remote_fn fn, void *priv)
 
 void ref_remove_duplicates(struct ref *ref_map)
 {
-       struct string_list refs = { NULL, 0, 0, 0 };
+       struct string_list refs = STRING_LIST_INIT_NODUP;
        struct string_list_item *item = NULL;
        struct ref *prev = NULL, *next = NULL;
        for (; ref_map; prev = ref_map, ref_map = next) {
@@ -761,7 +762,7 @@ void ref_remove_duplicates(struct ref *ref_map)
                if (!ref_map->peer_ref)
                        continue;
 
-               item = string_list_lookup(ref_map->peer_ref->name, &refs);
+               item = string_list_lookup(&refs, ref_map->peer_ref->name);
                if (item) {
                        if (strcmp(((struct ref *)item->util)->name,
                                   ref_map->name))
@@ -776,7 +777,7 @@ void ref_remove_duplicates(struct ref *ref_map)
                        continue;
                }
 
-               item = string_list_insert(ref_map->peer_ref->name, &refs);
+               item = string_list_insert(&refs, ref_map->peer_ref->name);
                item->util = ref_map;
        }
        string_list_clear(&refs, 0);
@@ -1247,6 +1248,56 @@ int match_refs(struct ref *src, struct ref **dst,
        return 0;
 }
 
+void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
+       int force_update)
+{
+       struct ref *ref;
+
+       for (ref = remote_refs; ref; ref = ref->next) {
+               if (ref->peer_ref)
+                       hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+               else if (!send_mirror)
+                       continue;
+
+               ref->deletion = is_null_sha1(ref->new_sha1);
+               if (!ref->deletion &&
+                       !hashcmp(ref->old_sha1, ref->new_sha1)) {
+                       ref->status = REF_STATUS_UPTODATE;
+                       continue;
+               }
+
+               /* This part determines what can overwrite what.
+                * The rules are:
+                *
+                * (0) you can always use --force or +A:B notation to
+                *     selectively force individual ref pairs.
+                *
+                * (1) if the old thing does not exist, it is OK.
+                *
+                * (2) if you do not have the old thing, you are not allowed
+                *     to overwrite it; you would not know what you are losing
+                *     otherwise.
+                *
+                * (3) if both new and old are commit-ish, and new is a
+                *     descendant of old, it is OK.
+                *
+                * (4) regardless of all of the above, removing :B is
+                *     always allowed.
+                */
+
+               ref->nonfastforward =
+                       !ref->deletion &&
+                       !is_null_sha1(ref->old_sha1) &&
+                       (!has_sha1_file(ref->old_sha1)
+                         || !ref_newer(ref->new_sha1, ref->old_sha1));
+
+               if (ref->nonfastforward && !ref->force && !force_update) {
+                       ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
+                       continue;
+               }
+       }
+}
+
 struct branch *branch_get(const char *name)
 {
        struct branch *ret;
@@ -1653,13 +1704,13 @@ static int get_stale_heads_cb(const char *refname,
 struct ref *get_stale_heads(struct remote *remote, struct ref *fetch_map)
 {
        struct ref *ref, *stale_refs = NULL;
-       struct string_list ref_names = { NULL, 0, 0, 0 };
+       struct string_list ref_names = STRING_LIST_INIT_NODUP;
        struct stale_heads_info info;
        info.remote = remote;
        info.ref_names = &ref_names;
        info.stale_refs_tail = &stale_refs;
        for (ref = fetch_map; ref; ref = ref->next)
-               string_list_append(ref->name, &ref_names);
+               string_list_append(&ref_names, ref->name);
        sort_string_list(&ref_names);
        for_each_ref(get_stale_heads_cb, &info);
        string_list_clear(&ref_names, 0);