Merge branch 'doc-style/for-next' of git://repo.or.cz/git/trast
[gitweb.git] / remote.c
index 73d33f2584b061085fcaa0958c26b1c3d4665904..c70181cdc621b27ed02aba17b3e4f7ab64518e9f 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -6,6 +6,7 @@
 #include "revision.h"
 #include "dir.h"
 #include "tag.h"
+#include "string-list.h"
 
 static struct refspec s_tag_refspec = {
        0,
@@ -52,6 +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;
@@ -396,7 +402,8 @@ static int handle_config(const char *key, const char *value, void *cb)
                remote->mirror = git_config_bool(key, value);
        else if (!strcmp(subkey, ".skipdefaultupdate"))
                remote->skip_default_update = git_config_bool(key, value);
-
+       else if (!strcmp(subkey, ".skipfetchall"))
+               remote->skip_default_update = git_config_bool(key, value);
        else if (!strcmp(subkey, ".url")) {
                const char *v;
                if (git_config_string(&v, key, value))
@@ -439,6 +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;
 }
@@ -666,6 +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))
@@ -688,14 +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);
@@ -734,29 +753,33 @@ int for_each_remote(each_remote_fn fn, void *priv)
 
 void ref_remove_duplicates(struct ref *ref_map)
 {
-       struct ref **posn;
-       struct ref *next;
-       for (; ref_map; ref_map = ref_map->next) {
+       struct string_list refs = { NULL, 0, 0, 0 };
+       struct string_list_item *item = NULL;
+       struct ref *prev = NULL, *next = NULL;
+       for (; ref_map; prev = ref_map, ref_map = next) {
+               next = ref_map->next;
                if (!ref_map->peer_ref)
                        continue;
-               posn = &ref_map->next;
-               while (*posn) {
-                       if ((*posn)->peer_ref &&
-                           !strcmp((*posn)->peer_ref->name,
-                                   ref_map->peer_ref->name)) {
-                               if (strcmp((*posn)->name, ref_map->name))
-                                       die("%s tracks both %s and %s",
-                                           ref_map->peer_ref->name,
-                                           (*posn)->name, ref_map->name);
-                               next = (*posn)->next;
-                               free((*posn)->peer_ref);
-                               free(*posn);
-                               *posn = next;
-                       } else {
-                               posn = &(*posn)->next;
-                       }
+
+               item = string_list_lookup(ref_map->peer_ref->name, &refs);
+               if (item) {
+                       if (strcmp(((struct ref *)item->util)->name,
+                                  ref_map->name))
+                               die("%s tracks both %s and %s",
+                                   ref_map->peer_ref->name,
+                                   ((struct ref *)item->util)->name,
+                                   ref_map->name);
+                       prev->next = ref_map->next;
+                       free(ref_map->peer_ref);
+                       free(ref_map);
+                       ref_map = prev; /* skip this; we freed it */
+                       continue;
                }
+
+               item = string_list_insert(ref_map->peer_ref->name, &refs);
+               item->util = ref_map;
        }
+       string_list_clear(&refs, 0);
 }
 
 int remote_has_url(struct remote *remote, const char *url)
@@ -804,6 +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;
@@ -1207,6 +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;
@@ -1586,3 +1676,42 @@ struct ref *guess_remote_head(const struct ref *head,
 
        return list;
 }
+
+struct stale_heads_info {
+       struct remote *remote;
+       struct string_list *ref_names;
+       struct ref **stale_refs_tail;
+};
+
+static int get_stale_heads_cb(const char *refname,
+       const unsigned char *sha1, int flags, void *cb_data)
+{
+       struct stale_heads_info *info = cb_data;
+       struct refspec refspec;
+       memset(&refspec, 0, sizeof(refspec));
+       refspec.dst = (char *)refname;
+       if (!remote_find_tracking(info->remote, &refspec)) {
+               if (!((flags & REF_ISSYMREF) ||
+                   string_list_has_string(info->ref_names, refspec.src))) {
+                       struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
+                       hashcpy(ref->new_sha1, sha1);
+               }
+       }
+       return 0;
+}
+
+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 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);
+       sort_string_list(&ref_names);
+       for_each_ref(get_stale_heads_cb, &info);
+       string_list_clear(&ref_names, 0);
+       return stale_refs;
+}