diff options
Diffstat (limited to 'remote.c')
| -rw-r--r-- | remote.c | 364 |
1 files changed, 273 insertions, 91 deletions
@@ -4,13 +4,15 @@ #include "commit.h" #include "diff.h" #include "revision.h" +#include "dir.h" +#include "tag.h" static struct refspec s_tag_refspec = { 0, 1, 0, - "refs/tags/", - "refs/tags/" + "refs/tags/*", + "refs/tags/*" }; const struct refspec *tag_refspec = &s_tag_refspec; @@ -37,6 +39,7 @@ static int branches_nr; static struct branch *current_branch; static const char *default_remote_name; +static int explicit_default_remote_name; static struct rewrite **rewrite; static int rewrite_alloc; @@ -69,7 +72,7 @@ static const char *alias_url(const char *url) if (!longest) return url; - ret = malloc(rewrite[longest_i]->baselen + + ret = xmalloc(rewrite[longest_i]->baselen + (strlen(url) - longest->len) + 1); strcpy(ret, rewrite[longest_i]->base); strcpy(ret + rewrite[longest_i]->baselen, url + longest->len); @@ -152,7 +155,7 @@ static struct branch *make_branch(const char *name, int len) ret->name = xstrndup(name, len); else ret->name = xstrdup(name); - refname = malloc(strlen(name) + strlen("refs/heads/") + 1); + refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1); strcpy(refname, "refs/heads/"); strcpy(refname + strlen("refs/heads/"), ret->name); ret->refname = refname; @@ -201,6 +204,7 @@ static void read_remotes_file(struct remote *remote) if (!f) return; + remote->origin = REMOTE_REMOTES; while (fgets(buffer, BUF_SIZE, f)) { int value_list; char *s, *p; @@ -245,7 +249,7 @@ static void read_branches_file(struct remote *remote) { const char *slash = strchr(remote->name, '/'); char *frag; - struct strbuf branch; + struct strbuf branch = STRBUF_INIT; int n = slash ? slash - remote->name : 1000; FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r"); char *s, *p; @@ -261,6 +265,7 @@ static void read_branches_file(struct remote *remote) s++; if (!*s) return; + remote->origin = REMOTE_BRANCHES; p = s + strlen(s); while (isspace(p[-1])) *--p = 0; @@ -283,7 +288,6 @@ static void read_branches_file(struct remote *remote) * #branch specified. The "master" (or specified) branch is * fetched and stored in the local branch of the same name. */ - strbuf_init(&branch, 0); frag = strchr(p, '#'); if (frag) { *(frag++) = '\0'; @@ -328,8 +332,10 @@ static int handle_config(const char *key, const char *value, void *cb) if (!value) return config_error_nonbool(key); branch->remote_name = xstrdup(value); - if (branch == current_branch) + if (branch == current_branch) { default_remote_name = branch->remote_name; + explicit_default_remote_name = 1; + } } else if (!strcmp(subkey, ".merge")) { if (!value) return config_error_nonbool(key); @@ -360,8 +366,9 @@ static int handle_config(const char *key, const char *value, void *cb) } subkey = strrchr(name, '.'); if (!subkey) - return error("Config with no key for remote %s", name); + return 0; remote = make_remote(name, subkey - name); + remote->origin = REMOTE_CONFIG; if (!strcmp(subkey, ".mirror")) remote->mirror = git_config_bool(key, value); else if (!strcmp(subkey, ".skipdefaultupdate")) @@ -448,19 +455,34 @@ static void read_config(void) */ static int verify_refname(char *name, int is_glob) { - int result, len = -1; + int result; - if (is_glob) { - len = strlen(name); - assert(name[len - 1] == '/'); - name[len - 1] = '\0'; - } result = check_ref_format(name); - if (is_glob) - name[len - 1] = '/'; + if (is_glob && result == CHECK_REF_FORMAT_WILDCARD) + result = CHECK_REF_FORMAT_OK; return result; } +/* + * This function frees a refspec array. + * Warning: code paths should be checked to ensure that the src + * and dst pointers are always freeable pointers as well + * as the refspec pointer itself. + */ +static void free_refspecs(struct refspec *refspec, int nr_refspec) +{ + int i; + + if (!refspec) + return; + + for (i = 0; i < nr_refspec; i++) { + free(refspec[i].src); + free(refspec[i].dst); + } + free(refspec); +} + static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) { int i; @@ -472,7 +494,7 @@ 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 == '+') { @@ -493,16 +515,15 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp if (rhs) { size_t rlen = strlen(++rhs); - is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*")); - rs[i].dst = xstrndup(rhs, rlen - is_glob); + is_glob = (1 <= rlen && strchr(rhs, '*')); + rs[i].dst = xstrndup(rhs, rlen); } llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); - if (2 <= llen && !memcmp(lhs + llen - 2, "/*", 2)) { + if (1 <= llen && memchr(lhs, '*', llen)) { if ((rhs && !is_glob) || (!rhs && fetch)) goto invalid; is_glob = 1; - llen--; } else if (rhs && is_glob) { goto invalid; } @@ -579,7 +600,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp invalid: if (verify) { - free(rs); + /* + * nr_refspec must be greater than zero and i must be valid + * since it is only possible to reach this point from within + * the for loop above. + */ + free_refspecs(rs, i+1); return NULL; } die("Invalid refspec '%s'", refspec[i]); @@ -591,7 +617,7 @@ int valid_fetch_refspec(const char *fetch_refspec_str) struct refspec *refspec; refspec = parse_refspec_internal(1, fetch_refspec, 1, 1); - free(refspec); + free_refspecs(refspec, 1); return !!refspec; } @@ -600,17 +626,14 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec) return parse_refspec_internal(nr_refspec, refspec, 1, 0); } -struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) +static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) { return parse_refspec_internal(nr_refspec, refspec, 0, 0); } static int valid_remote_nick(const char *name) { - if (!name[0] || /* not empty */ - (name[0] == '.' && /* not "." */ - (!name[1] || /* not ".." */ - (name[1] == '.' && !name[2])))) + if (!name[0] || is_dot_or_dotdot(name)) return 0; return !strchr(name, '/'); /* no slash */ } @@ -618,10 +641,16 @@ static int valid_remote_nick(const char *name) struct remote *remote_get(const char *name) { struct remote *ret; + int name_given = 0; read_config(); - if (!name) + if (name) + name_given = 1; + else { name = default_remote_name; + name_given = explicit_default_remote_name; + } + ret = make_remote(name, 0); if (valid_remote_nick(name)) { if (!ret->url) @@ -629,7 +658,7 @@ struct remote *remote_get(const char *name) if (!ret->url) read_branches_file(ret); } - if (!ret->url) + if (name_given && !ret->url) add_url_alias(ret, name); if (!ret->url) return NULL; @@ -638,6 +667,17 @@ struct remote *remote_get(const char *name) return ret; } +int remote_is_configured(const char *name) +{ + int i; + read_config(); + + for (i = 0; i < remotes_nr; i++) + if (!strcmp(name, remotes[i]->name)) + return 1; + return 0; +} + int for_each_remote(each_remote_fn fn, void *priv) { int i, result = 0; @@ -694,6 +734,41 @@ int remote_has_url(struct remote *remote, const char *url) return 0; } +static int match_name_with_pattern(const char *key, const char *name, + const char *value, char **result) +{ + const char *kstar = strchr(key, '*'); + size_t klen; + size_t ksuffixlen; + size_t namelen; + int ret; + if (!kstar) + die("Key '%s' of pattern had no '*'", key); + klen = kstar - key; + ksuffixlen = strlen(kstar + 1); + namelen = strlen(name); + ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen && + !memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen); + if (ret && value) { + const char *vstar = strchr(value, '*'); + size_t vlen; + size_t vsuffixlen; + if (!vstar) + die("Value '%s' of pattern has no '*'", value); + vlen = vstar - value; + vsuffixlen = strlen(vstar + 1); + *result = xmalloc(vlen + vsuffixlen + + strlen(name) - + klen - ksuffixlen + 1); + strncpy(*result, value, vlen); + strncpy(*result + vlen, + name + klen, namelen - klen - ksuffixlen); + strcpy(*result + vlen + namelen - klen - ksuffixlen, + vstar + 1); + } + return ret; +} + int remote_find_tracking(struct remote *remote, struct refspec *refspec) { int find_src = refspec->src == NULL; @@ -717,13 +792,7 @@ int remote_find_tracking(struct remote *remote, struct refspec *refspec) if (!fetch->dst) continue; if (fetch->pattern) { - if (!prefixcmp(needle, key)) { - *result = xmalloc(strlen(value) + - strlen(needle) - - strlen(key) + 1); - strcpy(*result, value); - strcpy(*result + strlen(value), - needle + strlen(key)); + if (match_name_with_pattern(key, needle, value, result)) { refspec->force = fetch->force; return 0; } @@ -736,26 +805,35 @@ int remote_find_tracking(struct remote *remote, struct refspec *refspec) return -1; } -struct ref *alloc_ref(unsigned namelen) +static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen, + const char *name) { - struct ref *ret = xmalloc(sizeof(struct ref) + namelen); - memset(ret, 0, sizeof(struct ref) + namelen); - return ret; + size_t len = strlen(name); + struct ref *ref = xcalloc(1, sizeof(struct ref) + prefixlen + len + 1); + memcpy(ref->name, prefix, prefixlen); + memcpy(ref->name + prefixlen, name, len); + return ref; } -struct ref *alloc_ref_from_str(const char* str) +struct ref *alloc_ref(const char *name) { - struct ref *ret = alloc_ref(strlen(str) + 1); - strcpy(ret->name, str); - return ret; + return alloc_ref_with_prefix("", 0, 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) @@ -770,10 +848,11 @@ struct ref *copy_ref_list(const struct ref *ref) return ret; } -void free_ref(struct ref *ref) +static void free_ref(struct ref *ref) { if (!ref) return; + free_ref(ref->peer_ref); free(ref->remote_status); free(ref->symref); free(ref); @@ -784,7 +863,6 @@ void free_refs(struct ref *ref) struct ref *next; while (ref) { next = ref->next; - free(ref->peer_ref); free_ref(ref); ref = next; } @@ -858,21 +936,20 @@ static struct ref *try_explicit_object_name(const char *name) struct ref *ref; if (!*name) { - ref = alloc_ref(20); - strcpy(ref->name, "(delete)"); + ref = alloc_ref("(delete)"); hashclr(ref->new_sha1); return ref; } if (get_sha1(name, sha1)) return NULL; - ref = alloc_ref_from_str(name); + ref = alloc_ref(name); hashcpy(ref->new_sha1, sha1); return ref; } static struct ref *make_linked_ref(const char *name, struct ref ***tail) { - struct ref *ret = alloc_ref_from_str(name); + struct ref *ret = alloc_ref(name); tail_link_ref(ret, tail); return ret; } @@ -902,6 +979,7 @@ 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; @@ -912,6 +990,7 @@ 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 @@ -921,6 +1000,7 @@ 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); @@ -966,7 +1046,7 @@ 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; @@ -995,7 +1075,8 @@ static const struct refspec *check_pattern_match(const struct refspec *rs, continue; } - if (rs[i].pattern && !prefixcmp(src->name, rs[i].src)) + if (rs[i].pattern && match_name_with_pattern(rs[i].src, src->name, + NULL, NULL)) return rs + i; } if (matching_refs != -1) @@ -1015,6 +1096,7 @@ 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) { @@ -1022,8 +1104,7 @@ 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) { @@ -1049,11 +1130,9 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, } else { const char *dst_side = pat->dst ? pat->dst : pat->src; - dst_name = xmalloc(strlen(dst_side) + - strlen(src->name) - - strlen(pat->src) + 2); - strcpy(dst_name, dst_side); - strcat(dst_name, src->name + strlen(pat->src)); + if (!match_name_with_pattern(pat->src, src->name, + dst_side, &dst_name)) + die("Didn't think it matches any more"); } dst_peer = find_ref_by_name(dst, dst_name); if (dst_peer) { @@ -1074,11 +1153,13 @@ 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; } @@ -1100,8 +1181,9 @@ struct branch *branch_get(const char *name) for (i = 0; i < ret->merge_nr; i++) { ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); ret->merge[i]->src = xstrdup(ret->merge_name[i]); - remote_find_tracking(ret->remote, - ret->merge[i]); + if (remote_find_tracking(ret->remote, ret->merge[i]) + && !strcmp(ret->remote_name, ".")) + ret->merge[i]->dst = xstrdup(ret->merge_name[i]); } } } @@ -1129,21 +1211,17 @@ static struct ref *get_expanded_map(const struct ref *remote_refs, struct ref *ret = NULL; struct ref **tail = &ret; - int remote_prefix_len = strlen(refspec->src); - int local_prefix_len = strlen(refspec->dst); + char *expn_name; for (ref = remote_refs; ref; ref = ref->next) { if (strchr(ref->name, '^')) continue; /* a dereference item */ - if (!prefixcmp(ref->name, refspec->src)) { - const char *match; + if (match_name_with_pattern(refspec->src, ref->name, + refspec->dst, &expn_name)) { struct ref *cpy = copy_ref(ref); - match = ref->name + remote_prefix_len; - cpy->peer_ref = alloc_ref(local_prefix_len + - strlen(match) + 1); - sprintf(cpy->peer_ref->name, "%s%s", - refspec->dst, match); + cpy->peer_ref = alloc_ref(expn_name); + free(expn_name); if (refspec->force) cpy->peer_ref->force = 1; *tail = cpy; @@ -1176,25 +1254,18 @@ struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) static struct ref *get_local_ref(const char *name) { - struct ref *ret; if (!name) return NULL; - if (!prefixcmp(name, "refs/")) { - return alloc_ref_from_str(name); - } + if (!prefixcmp(name, "refs/")) + return alloc_ref(name); if (!prefixcmp(name, "heads/") || !prefixcmp(name, "tags/") || - !prefixcmp(name, "remotes/")) { - ret = alloc_ref(strlen(name) + 6); - sprintf(ret->name, "refs/%s", name); - return ret; - } + !prefixcmp(name, "remotes/")) + return alloc_ref_with_prefix("refs/", 5, name); - ret = alloc_ref(strlen(name) + 12); - sprintf(ret->name, "refs/heads/%s", name); - return ret; + return alloc_ref_with_prefix("refs/heads/", 11, name); } int get_fetch_map(const struct ref *remote_refs, @@ -1253,6 +1324,54 @@ 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. */ @@ -1341,9 +1460,7 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb) return 0; base = branch->merge[0]->dst; - if (!prefixcmp(base, "refs/remotes/")) { - base += strlen("refs/remotes/"); - } + base = shorten_unambiguous_ref(base, 0); if (!num_theirs) strbuf_addf(sb, "Your branch is ahead of '%s' " "by %d commit%s.\n", @@ -1360,3 +1477,68 @@ 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 = NULL, **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; +} |