Merge branch 'jk/maint-diffstat-overflow'

diff --git a/remote.c b/remote.c
index b979a9642b81b456ab92cdf57e8eda944f01f92e..c70181cdc621b27ed02aba17b3e4f7ab64518e9f 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -53,6 +53,11 @@ static struct rewrites rewrites_push;
 #define BUF_SIZE (2048)
 static char buffer[BUF_SIZE];
 
+static int valid_remote(const struct remote *remote)
+{
+       return (!!remote->url) || (!!remote->foreign_vcs);
+}
+
 static const char *alias_url(const char *url, struct rewrites *r)
 {
        int i, j;
@@ -441,6 +446,8 @@ static int handle_config(const char *key, const char *value, void *cb)
        } else if (!strcmp(subkey, ".proxy")) {
                return git_config_string((const char **)&remote->http_proxy,
                                         key, value);
+       } else if (!strcmp(subkey, ".vcs")) {
+               return git_config_string(&remote->foreign_vcs, key, value);
        }
        return 0;
 }
@@ -668,6 +675,16 @@ static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
        return parse_refspec_internal(nr_refspec, refspec, 0, 0);
 }
 
+void free_refspec(int nr_refspec, struct refspec *refspec)
+{
+       int i;
+       for (i = 0; i < nr_refspec; i++) {
+               free(refspec[i].src);
+               free(refspec[i].dst);
+       }
+       free(refspec);
+}
+
 static int valid_remote_nick(const char *name)
 {
        if (!name[0] || is_dot_or_dotdot(name))
@@ -690,14 +707,14 @@ struct remote *remote_get(const char *name)
 
        ret = make_remote(name, 0);
        if (valid_remote_nick(name)) {
-               if (!ret->url)
+               if (!valid_remote(ret))
                        read_remotes_file(ret);
-               if (!ret->url)
+               if (!valid_remote(ret))
                        read_branches_file(ret);
        }
-       if (name_given && !ret->url)
+       if (name_given && !valid_remote(ret))
                add_url_alias(ret, name);
-       if (!ret->url)
+       if (!valid_remote(ret))
                return NULL;
        ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec);
        ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec);
@@ -810,6 +827,23 @@ static int match_name_with_pattern(const char *key, const char *name,
        return ret;
 }
 
+char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
+                    const char *name)
+{
+       int i;
+       char *ret = NULL;
+       for (i = 0; i < nr_refspec; i++) {
+               struct refspec *refspec = refspecs + i;
+               if (refspec->pattern) {
+                       if (match_name_with_pattern(refspec->src, name,
+                                                   refspec->dst, &ret))
+                               return ret;
+               } else if (!strcmp(refspec->src, name))
+                       return strdup(refspec->dst);
+       }
+       return NULL;
+}
+
 int remote_find_tracking(struct remote *remote, struct refspec *refspec)
 {
        int find_src = refspec->src == NULL;
@@ -1213,6 +1247,56 @@ 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;