diff options
Diffstat (limited to 'remote.c')
| -rw-r--r-- | remote.c | 330 |
1 files changed, 226 insertions, 104 deletions
@@ -49,6 +49,7 @@ static int branches_nr; static struct branch *current_branch; static const char *default_remote_name; +static const char *branch_pushremote_name; static const char *pushremote_name; static int explicit_default_remote_name; @@ -76,7 +77,7 @@ static const char *alias_url(const char *url, struct rewrites *r) if (!r->rewrite[i]) continue; for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) { - if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) && + if (starts_with(url, r->rewrite[i]->instead_of[j].s) && (!longest || longest->len < r->rewrite[i]->instead_of[j].len)) { longest = &(r->rewrite[i]->instead_of[j]); @@ -169,7 +170,6 @@ static struct branch *make_branch(const char *name, int len) { struct branch *ret; int i; - char *refname; for (i = 0; i < branches_nr; i++) { if (len ? (!strncmp(name, branches[i]->name, len) && @@ -185,10 +185,7 @@ static struct branch *make_branch(const char *name, int len) ret->name = xstrndup(name, len); else ret->name = xstrdup(name); - refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1); - strcpy(refname, "refs/heads/"); - strcpy(refname + strlen("refs/heads/"), ret->name); - ret->refname = refname; + ret->refname = xstrfmt("refs/heads/%s", ret->name); return ret; } @@ -239,13 +236,13 @@ static void read_remotes_file(struct remote *remote) int value_list; char *s, *p; - if (!prefixcmp(buffer, "URL:")) { + if (starts_with(buffer, "URL:")) { value_list = 0; s = buffer + 4; - } else if (!prefixcmp(buffer, "Push:")) { + } else if (starts_with(buffer, "Push:")) { value_list = 1; s = buffer + 5; - } else if (!prefixcmp(buffer, "Pull:")) { + } else if (starts_with(buffer, "Pull:")) { value_list = 2; s = buffer + 5; } else @@ -337,7 +334,7 @@ static int handle_config(const char *key, const char *value, void *cb) const char *subkey; struct remote *remote; struct branch *branch; - if (!prefixcmp(key, "branch.")) { + if (starts_with(key, "branch.")) { name = key + 7; subkey = strrchr(name, '.'); if (!subkey) @@ -352,7 +349,7 @@ static int handle_config(const char *key, const char *value, void *cb) } } else if (!strcmp(subkey, ".pushremote")) { if (branch == current_branch) - if (git_config_string(&pushremote_name, key, value)) + if (git_config_string(&branch_pushremote_name, key, value)) return -1; } else if (!strcmp(subkey, ".merge")) { if (!value) @@ -361,7 +358,7 @@ static int handle_config(const char *key, const char *value, void *cb) } return 0; } - if (!prefixcmp(key, "url.")) { + if (starts_with(key, "url.")) { struct rewrite *rewrite; name = key + 4; subkey = strrchr(name, '.'); @@ -380,7 +377,7 @@ static int handle_config(const char *key, const char *value, void *cb) } } - if (prefixcmp(key, "remote.")) + if (!starts_with(key, "remote.")) return 0; name = key + 7; @@ -487,11 +484,14 @@ static void read_config(void) current_branch = NULL; head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag); if (head_ref && (flag & REF_ISSYMREF) && - !prefixcmp(head_ref, "refs/heads/")) { - current_branch = - make_branch(head_ref + strlen("refs/heads/"), 0); + skip_prefix(head_ref, "refs/heads/", &head_ref)) { + current_branch = make_branch(head_ref, 0); } git_config(handle_config, NULL); + if (branch_pushremote_name) { + free((char *)pushremote_name); + pushremote_name = branch_pushremote_name; + } alias_all_urls(); } @@ -518,7 +518,7 @@ static void free_refspecs(struct refspec *refspec, int nr_refspec) static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) { int i; - struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec); + struct refspec *rs = xcalloc(nr_refspec, sizeof(*rs)); for (i = 0; i < nr_refspec; i++) { size_t llen; @@ -745,35 +745,66 @@ int for_each_remote(each_remote_fn fn, void *priv) return result; } -void ref_remove_duplicates(struct ref *ref_map) +static void handle_duplicate(struct ref *ref1, struct ref *ref2) +{ + if (strcmp(ref1->name, ref2->name)) { + if (ref1->fetch_head_status != FETCH_HEAD_IGNORE && + ref2->fetch_head_status != FETCH_HEAD_IGNORE) { + die(_("Cannot fetch both %s and %s to %s"), + ref1->name, ref2->name, ref2->peer_ref->name); + } else if (ref1->fetch_head_status != FETCH_HEAD_IGNORE && + ref2->fetch_head_status == FETCH_HEAD_IGNORE) { + warning(_("%s usually tracks %s, not %s"), + ref2->peer_ref->name, ref2->name, ref1->name); + } else if (ref1->fetch_head_status == FETCH_HEAD_IGNORE && + ref2->fetch_head_status == FETCH_HEAD_IGNORE) { + die(_("%s tracks both %s and %s"), + ref2->peer_ref->name, ref1->name, ref2->name); + } else { + /* + * This last possibility doesn't occur because + * FETCH_HEAD_IGNORE entries always appear at + * the end of the list. + */ + die(_("Internal error")); + } + } + free(ref2->peer_ref); + free(ref2); +} + +struct ref *ref_remove_duplicates(struct ref *ref_map) { 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) { - next = ref_map->next; - if (!ref_map->peer_ref) - continue; + struct ref *retval = NULL; + struct ref **p = &retval; - item = string_list_lookup(&refs, ref_map->peer_ref->name); - 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; - } + while (ref_map) { + struct ref *ref = ref_map; + + ref_map = ref_map->next; + ref->next = NULL; - item = string_list_insert(&refs, ref_map->peer_ref->name); - item->util = ref_map; + if (!ref->peer_ref) { + *p = ref; + p = &ref->next; + } else { + struct string_list_item *item = + string_list_insert(&refs, ref->peer_ref->name); + + if (item->util) { + /* Entry already existed */ + handle_duplicate((struct ref *)item->util, ref); + } else { + *p = ref; + p = &ref->next; + item->util = ref; + } + } } + string_list_clear(&refs, 0); + return retval; } int remote_has_url(struct remote *remote, const char *url) @@ -821,13 +852,13 @@ static int match_name_with_pattern(const char *key, const char *name, return ret; } -static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query) +static void query_refspecs_multiple(struct refspec *refs, int ref_count, struct refspec *query, struct string_list *results) { int i; int find_src = !query->src; if (find_src && !query->dst) - return error("query_refspecs: need either src or dst"); + error("query_refspecs_multiple: need either src or dst"); for (i = 0; i < ref_count; i++) { struct refspec *refspec = &refs[i]; @@ -839,6 +870,32 @@ static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *q if (!refspec->dst) continue; if (refspec->pattern) { + if (match_name_with_pattern(key, needle, value, result)) + string_list_append_nodup(results, *result); + } else if (!strcmp(needle, key)) { + string_list_append(results, value); + } + } +} + +int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query) +{ + int i; + int find_src = !query->src; + const char *needle = find_src ? query->dst : query->src; + char **result = find_src ? &query->src : &query->dst; + + if (find_src && !query->dst) + return error("query_refspecs: need either src or dst"); + + for (i = 0; i < ref_count; i++) { + struct refspec *refspec = &refs[i]; + const char *key = find_src ? refspec->dst : refspec->src; + const char *value = find_src ? refspec->src : refspec->dst; + + if (!refspec->dst) + continue; + if (refspec->pattern) { if (match_name_with_pattern(key, needle, value, result)) { query->force = refspec->force; return 0; @@ -955,9 +1012,9 @@ void sort_ref_list(struct ref **l, int (*cmp)(const void *, const void *)) *l = llist_mergesort(*l, ref_list_get_next, ref_list_set_next, cmp); } -static int count_refspec_match(const char *pattern, - struct ref *refs, - struct ref **matched_ref) +int count_refspec_match(const char *pattern, + struct ref *refs, + struct ref **matched_ref) { int patlen = strlen(pattern); struct ref *matched_weak = NULL; @@ -969,7 +1026,7 @@ static int count_refspec_match(const char *pattern, char *name = refs->name; int namelen = strlen(name); - if (!refname_match(pattern, name, ref_rev_parse_rules)) + if (!refname_match(pattern, name)) continue; /* A match is "weak" if it is with refs outside @@ -982,8 +1039,8 @@ static int count_refspec_match(const char *pattern, */ if (namelen != patlen && patlen != namelen - 5 && - prefixcmp(name, "refs/heads/") && - prefixcmp(name, "refs/tags/")) { + !starts_with(name, "refs/heads/") && + !starts_with(name, "refs/tags/")) { /* We want to catch the case where only weak * matches are found and there are multiple * matches, and where more than one strong @@ -1000,11 +1057,13 @@ static int count_refspec_match(const char *pattern, } } if (!matched) { - *matched_ref = matched_weak; + if (matched_ref) + *matched_ref = matched_weak; return weak_match; } else { - *matched_ref = matched; + if (matched_ref) + *matched_ref = matched; return match; } } @@ -1024,18 +1083,25 @@ static struct ref *alloc_delete_ref(void) return ref; } -static struct ref *try_explicit_object_name(const char *name) +static int try_explicit_object_name(const char *name, + struct ref **match) { unsigned char sha1[20]; - struct ref *ref; - if (!*name) - return alloc_delete_ref(); + if (!*name) { + if (match) + *match = alloc_delete_ref(); + return 0; + } + if (get_sha1(name, sha1)) - return NULL; - ref = alloc_ref(name); - hashcpy(ref->new_sha1, sha1); - return ref; + return -1; + + if (match) { + *match = alloc_ref(name); + hashcpy((*match)->new_sha1, sha1); + } + return 0; } static struct ref *make_linked_ref(const char *name, struct ref ***tail) @@ -1054,9 +1120,9 @@ static char *guess_ref(const char *name, struct ref *peer) if (!r) return NULL; - if (!prefixcmp(r, "refs/heads/")) + if (starts_with(r, "refs/heads/")) strbuf_addstr(&buf, "refs/heads/"); - else if (!prefixcmp(r, "refs/tags/")) + else if (starts_with(r, "refs/tags/")) strbuf_addstr(&buf, "refs/tags/"); else return NULL; @@ -1065,12 +1131,37 @@ static char *guess_ref(const char *name, struct ref *peer) return strbuf_detach(&buf, NULL); } +static int match_explicit_lhs(struct ref *src, + struct refspec *rs, + struct ref **match, + int *allocated_match) +{ + switch (count_refspec_match(rs->src, src, match)) { + case 1: + if (allocated_match) + *allocated_match = 0; + return 0; + case 0: + /* The source could be in the get_sha1() format + * not a reference name. :refs/other is a + * way to delete 'other' ref at the remote end. + */ + if (try_explicit_object_name(rs->src, match) < 0) + return error("src refspec %s does not match any.", rs->src); + if (allocated_match) + *allocated_match = 1; + return 0; + default: + return error("src refspec %s matches more than one.", rs->src); + } +} + static int match_explicit(struct ref *src, struct ref *dst, struct ref ***dst_tail, struct refspec *rs) { struct ref *matched_src, *matched_dst; - int copy_src; + int allocated_src; const char *dst_value = rs->dst; char *dst_guess; @@ -1079,23 +1170,8 @@ static int match_explicit(struct ref *src, struct ref *dst, return 0; 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 - * not a reference name. :refs/other is a - * way to delete 'other' ref at the remote end. - */ - 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); - } + if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0) + return -1; if (!dst_value) { unsigned char sha1[20]; @@ -1104,7 +1180,7 @@ static int match_explicit(struct ref *src, struct ref *dst, dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag); if (!dst_value || ((flag & REF_ISSYMREF) && - prefixcmp(dst_value, "refs/heads/"))) + !starts_with(dst_value, "refs/heads/"))) die("%s cannot be resolved to branch.", matched_src->name); } @@ -1113,7 +1189,7 @@ static int match_explicit(struct ref *src, struct ref *dst, case 1: break; case 0: - if (!memcmp(dst_value, "refs/", 5)) + if (starts_with(dst_value, "refs/")) matched_dst = make_linked_ref(dst_value, dst_tail); else if (is_null_sha1(matched_src->new_sha1)) error("unable to delete '%s': remote ref does not exist", @@ -1140,7 +1216,9 @@ 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 = copy_src ? copy_ref(matched_src) : matched_src; + matched_dst->peer_ref = allocated_src ? + matched_src : + copy_ref(matched_src); matched_dst->force = rs->force; } return 0; @@ -1193,7 +1271,7 @@ static char *get_ref_match(const struct refspec *rs, int rs_nr, const struct ref * including refs outside refs/heads/ hierarchy, but * that does not make much sense these days. */ - if (!send_mirror && prefixcmp(ref->name, "refs/heads/")) + if (!send_mirror && !starts_with(ref->name, "refs/heads/")) return NULL; name = xstrdup(ref->name); } @@ -1248,7 +1326,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds add_to_tips(&sent_tips, ref->peer_ref->new_sha1); else add_to_tips(&sent_tips, ref->old_sha1); - if (!prefixcmp(ref->name, "refs/tags/")) + if (starts_with(ref->name, "refs/tags/")) string_list_append(&dst_tag, ref->name); } clear_commit_marks_many(sent_tips.nr, sent_tips.tip, TMP_MARK); @@ -1257,7 +1335,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds /* Collect tags they do not have. */ for (ref = src; ref; ref = ref->next) { - if (prefixcmp(ref->name, "refs/tags/")) + if (!starts_with(ref->name, "refs/tags/")) continue; /* not a tag */ if (string_list_has_string(&dst_tag, ref->name)) continue; /* they already have it */ @@ -1322,6 +1400,31 @@ static void prepare_ref_index(struct string_list *ref_index, struct ref *ref) } /* + * Given only the set of local refs, sanity-check the set of push + * refspecs. We can't catch all errors that match_push_refs would, + * but we can catch some errors early before even talking to the + * remote side. + */ +int check_push_refs(struct ref *src, int nr_refspec, const char **refspec_names) +{ + struct refspec *refspec = parse_push_refspec(nr_refspec, refspec_names); + int ret = 0; + int i; + + for (i = 0; i < nr_refspec; i++) { + struct refspec *rs = refspec + i; + + if (rs->pattern || rs->matching) + continue; + + ret |= match_explicit_lhs(src, rs, NULL, NULL); + } + + free_refspec(nr_refspec, refspec); + return ret; +} + +/* * Given the set of refs the local repository has, the set of refs the * remote repository has, and the refspec used for push, determine * what remote refs we will update and with what value by setting @@ -1373,7 +1476,7 @@ int match_push_refs(struct ref *src, struct ref **dst, /* * Remote doesn't have it, and we have no * explicit pattern, and we don't have - * --all nor --mirror. + * --all or --mirror. */ goto free_name; @@ -1481,7 +1584,7 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror, */ else if (!ref->deletion && !is_null_sha1(ref->old_sha1)) { - if (!prefixcmp(ref->name, "refs/tags/")) + if (starts_with(ref->name, "refs/tags/")) reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS; else if (!has_sha1_file(ref->old_sha1)) reject_reason = REF_STATUS_REJECT_FETCH_FIRST; @@ -1540,7 +1643,7 @@ int branch_merge_matches(struct branch *branch, { if (!branch || i < 0 || i >= branch->merge_nr) return 0; - return refname_match(branch->merge[i]->src, refname, ref_fetch_rules); + return refname_match(branch->merge[i]->src, refname); } static int ignore_symref_update(const char *refname) @@ -1553,6 +1656,13 @@ static int ignore_symref_update(const char *refname) return (flag & REF_ISSYMREF); } +/* + * Create and return a list of (struct ref) consisting of copies of + * each remote_ref that matches refspec. refspec must be a pattern. + * Fill in the copies' peer_ref to describe the local tracking refs to + * which they map. Omit any references that would map to an existing + * local symbolic ref. + */ static struct ref *get_expanded_map(const struct ref *remote_refs, const struct refspec *refspec) { @@ -1560,9 +1670,9 @@ static struct ref *get_expanded_map(const struct ref *remote_refs, struct ref *ret = NULL; struct ref **tail = &ret; - char *expn_name; - for (ref = remote_refs; ref; ref = ref->next) { + char *expn_name = NULL; + if (strchr(ref->name, '^')) continue; /* a dereference item */ if (match_name_with_pattern(refspec->src, ref->name, @@ -1571,12 +1681,12 @@ static struct ref *get_expanded_map(const struct ref *remote_refs, struct ref *cpy = copy_ref(ref); cpy->peer_ref = alloc_ref(expn_name); - free(expn_name); if (refspec->force) cpy->peer_ref->force = 1; *tail = cpy; tail = &cpy->next; } + free(expn_name); } return ret; @@ -1586,7 +1696,7 @@ static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const c { const struct ref *ref; for (ref = refs; ref; ref = ref->next) { - if (refname_match(name, ref->name, ref_fetch_rules)) + if (refname_match(name, ref->name)) return ref; } return NULL; @@ -1607,12 +1717,12 @@ static struct ref *get_local_ref(const char *name) if (!name || name[0] == '\0') return NULL; - if (!prefixcmp(name, "refs/")) + if (starts_with(name, "refs/")) return alloc_ref(name); - if (!prefixcmp(name, "heads/") || - !prefixcmp(name, "tags/") || - !prefixcmp(name, "remotes/")) + if (starts_with(name, "heads/") || + starts_with(name, "tags/") || + starts_with(name, "remotes/")) return alloc_ref_with_prefix("refs/", 5, name); return alloc_ref_with_prefix("refs/heads/", 11, name); @@ -1647,7 +1757,7 @@ int get_fetch_map(const struct ref *remote_refs, for (rmp = &ref_map; *rmp; ) { if ((*rmp)->peer_ref) { - if (prefixcmp((*rmp)->peer_ref->name, "refs/") || + if (!starts_with((*rmp)->peer_ref->name, "refs/") || check_refname_format((*rmp)->peer_ref->name, 0)) { struct ref *ignore = *rmp; error("* Ignoring funny ref '%s' locally", @@ -1931,7 +2041,7 @@ struct ref *guess_remote_head(const struct ref *head, /* Look for another ref that points there */ for (r = refs; r; r = r->next) { if (r != head && - !prefixcmp(r->name, "refs/heads/") && + starts_with(r->name, "refs/heads/") && !hashcmp(r->old_sha1, head->old_sha1)) { *tail = copy_ref(r); tail = &((*tail)->next); @@ -1954,25 +2064,37 @@ 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 string_list matches = STRING_LIST_INIT_DUP; struct refspec query; + int i, stale = 1; memset(&query, 0, sizeof(struct refspec)); query.dst = (char *)refname; - if (query_refspecs(info->refs, info->ref_count, &query)) - return 0; /* No matches */ + query_refspecs_multiple(info->refs, info->ref_count, &query, &matches); + if (matches.nr == 0) + goto clean_exit; /* No matches */ /* * If we did find a suitable refspec and it's not a symref and * it's not in the list of refs that currently exist in that - * remote we consider it to be stale. + * remote, we consider it to be stale. In order to deal with + * overlapping refspecs, we need to go over all of the + * matching refs. */ - if (!((flags & REF_ISSYMREF) || - string_list_has_string(info->ref_names, query.src))) { + if (flags & REF_ISSYMREF) + goto clean_exit; + + for (i = 0; stale && i < matches.nr; i++) + if (string_list_has_string(info->ref_names, matches.items[i].string)) + stale = 0; + + if (stale) { struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail); hashcpy(ref->new_sha1, sha1); } - free(query.src); +clean_exit: + string_list_clear(&matches, 0); return 0; } @@ -2083,7 +2205,7 @@ static void apply_cas(struct push_cas_option *cas, /* Find an explicit --<option>=<name>[:<value>] entry */ for (i = 0; i < cas->nr; i++) { struct push_cas *entry = &cas->entry[i]; - if (!refname_match(entry->refname, ref->name, ref_rev_parse_rules)) + if (!refname_match(entry->refname, ref->name)) continue; ref->expect_old_sha1 = 1; if (!entry->use_tracking) |