diff options
Diffstat (limited to 'remote.c')
| -rw-r--r-- | remote.c | 147 |
1 files changed, 137 insertions, 10 deletions
@@ -5,6 +5,7 @@ #include "diff.h" #include "revision.h" #include "dir.h" +#include "tag.h" static struct refspec s_tag_refspec = { 0, @@ -498,7 +499,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp int is_glob; const char *lhs, *rhs; - llen = is_glob = 0; + is_glob = 0; lhs = refspec[i]; if (*lhs == '+') { @@ -787,10 +788,18 @@ struct ref *alloc_ref(const char *name) static struct ref *copy_ref(const struct ref *ref) { - struct ref *ret = xmalloc(sizeof(struct ref) + strlen(ref->name) + 1); - memcpy(ret, ref, sizeof(struct ref) + strlen(ref->name) + 1); - ret->next = NULL; - return ret; + struct ref *cpy; + size_t len; + if (!ref) + return NULL; + len = strlen(ref->name); + cpy = xmalloc(sizeof(struct ref) + len + 1); + memcpy(cpy, ref, sizeof(struct ref) + len + 1); + cpy->next = NULL; + cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL; + cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : NULL; + cpy->peer_ref = copy_ref(ref->peer_ref); + return cpy; } struct ref *copy_ref_list(const struct ref *ref) @@ -809,6 +818,7 @@ static void free_ref(struct ref *ref) { if (!ref) return; + free_ref(ref->peer_ref); free(ref->remote_status); free(ref->symref); free(ref); @@ -819,7 +829,6 @@ void free_refs(struct ref *ref) struct ref *next; while (ref) { next = ref->next; - free(ref->peer_ref); free_ref(ref); ref = next; } @@ -936,6 +945,7 @@ static int match_explicit(struct ref *src, struct ref *dst, struct refspec *rs) { struct ref *matched_src, *matched_dst; + int copy_src; const char *dst_value = rs->dst; char *dst_guess; @@ -946,6 +956,7 @@ static int match_explicit(struct ref *src, struct ref *dst, matched_src = matched_dst = NULL; switch (count_refspec_match(rs->src, src, &matched_src)) { case 1: + copy_src = 1; break; case 0: /* The source could be in the get_sha1() format @@ -955,6 +966,7 @@ static int match_explicit(struct ref *src, struct ref *dst, matched_src = try_explicit_object_name(rs->src); if (!matched_src) return error("src refspec %s does not match any.", rs->src); + copy_src = 0; break; default: return error("src refspec %s matches more than one.", rs->src); @@ -1000,7 +1012,7 @@ static int match_explicit(struct ref *src, struct ref *dst, return error("dst ref %s receives from more than one src.", matched_dst->name); else { - matched_dst->peer_ref = matched_src; + matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src; matched_dst->force = rs->force; } return 0; @@ -1049,6 +1061,7 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, struct refspec *rs; int send_all = flags & MATCH_REFS_ALL; int send_mirror = flags & MATCH_REFS_MIRROR; + int errs; static const char *default_refspec[] = { ":", 0 }; if (!nr_refspec) { @@ -1056,8 +1069,7 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, refspec = default_refspec; } rs = parse_push_refspec(nr_refspec, (const char **) refspec); - if (match_explicit_refs(src, dst, dst_tail, rs, nr_refspec)) - return -1; + errs = match_explicit_refs(src, dst, dst_tail, rs, nr_refspec); /* pick the remainder */ for ( ; src; src = src->next) { @@ -1108,11 +1120,13 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, dst_peer = make_linked_ref(dst_name, dst_tail); hashcpy(dst_peer->new_sha1, src->new_sha1); } - dst_peer->peer_ref = src; + dst_peer->peer_ref = copy_ref(src); dst_peer->force = pat->force; free_name: free(dst_name); } + if (errs) + return -1; return 0; } @@ -1278,6 +1292,54 @@ int resolve_remote_symref(struct ref *ref, struct ref *list) return 1; } +static void unmark_and_free(struct commit_list *list, unsigned int mark) +{ + while (list) { + struct commit_list *temp = list; + temp->item->object.flags &= ~mark; + list = temp->next; + free(temp); + } +} + +int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1) +{ + struct object *o; + struct commit *old, *new; + struct commit_list *list, *used; + int found = 0; + + /* Both new and old must be commit-ish and new is descendant of + * old. Otherwise we require --force. + */ + o = deref_tag(parse_object(old_sha1), NULL, 0); + if (!o || o->type != OBJ_COMMIT) + return 0; + old = (struct commit *) o; + + o = deref_tag(parse_object(new_sha1), NULL, 0); + if (!o || o->type != OBJ_COMMIT) + return 0; + new = (struct commit *) o; + + if (parse_commit(new) < 0) + return 0; + + used = list = NULL; + commit_list_insert(new, &list); + while (list) { + new = pop_most_recent_commit(&list, TMP_MARK); + commit_list_insert(new, &used); + if (new == old) { + found = 1; + break; + } + } + unmark_and_free(list, TMP_MARK); + unmark_and_free(used, TMP_MARK); + return found; +} + /* * Return true if there is anything to report, otherwise false. */ @@ -1385,3 +1447,68 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb) base, num_ours, num_theirs); return 1; } + +static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +{ + struct ref ***local_tail = cb_data; + struct ref *ref; + int len; + + /* we already know it starts with refs/ to get here */ + if (check_ref_format(refname + 5)) + return 0; + + len = strlen(refname) + 1; + ref = xcalloc(1, sizeof(*ref) + len); + hashcpy(ref->new_sha1, sha1); + memcpy(ref->name, refname, len); + **local_tail = ref; + *local_tail = &ref->next; + return 0; +} + +struct ref *get_local_heads(void) +{ + struct ref *local_refs, **local_tail = &local_refs; + for_each_ref(one_local_ref, &local_tail); + return local_refs; +} + +struct ref *guess_remote_head(const struct ref *head, + const struct ref *refs, + int all) +{ + const struct ref *r; + struct ref *list = NULL; + struct ref **tail = &list; + + if (!head) + return NULL; + + /* + * Some transports support directly peeking at + * where HEAD points; if that is the case, then + * we don't have to guess. + */ + if (head->symref) + return copy_ref(find_ref_by_name(refs, head->symref)); + + /* If refs/heads/master could be right, it is. */ + if (!all) { + r = find_ref_by_name(refs, "refs/heads/master"); + if (r && !hashcmp(r->old_sha1, head->old_sha1)) + return copy_ref(r); + } + + /* Look for another ref that points there */ + for (r = refs; r; r = r->next) { + if (r != head && !hashcmp(r->old_sha1, head->old_sha1)) { + *tail = copy_ref(r); + tail = &((*tail)->next); + if (!all) + break; + } + } + + return list; +} |