3 #include "object-store.h"
8 #include "gpg-interface.h"
10 const char *tag_type = "tag";
12 static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags)
14 struct signature_check sigc;
18 memset(&sigc, 0, sizeof(sigc));
20 payload_size = parse_signature(buf, size);
22 if (size == payload_size) {
23 if (flags & GPG_VERIFY_VERBOSE)
24 write_in_full(1, buf, payload_size);
25 return error("no signature found");
28 ret = check_signature(buf, payload_size, buf + payload_size,
29 size - payload_size, &sigc);
31 if (!(flags & GPG_VERIFY_OMIT_STATUS))
32 print_signature_buffer(&sigc, flags);
34 signature_check_clear(&sigc);
38 int gpg_verify_tag(const struct object_id *oid, const char *name_to_report,
41 enum object_type type;
46 type = oid_object_info(the_repository, oid, NULL);
48 return error("%s: cannot verify a non-tag object of type %s.",
51 find_unique_abbrev(oid, DEFAULT_ABBREV),
54 buf = read_object_file(oid, &type, &size);
56 return error("%s: unable to read file.",
59 find_unique_abbrev(oid, DEFAULT_ABBREV));
61 ret = run_gpg_verify(buf, size, flags);
67 struct object *deref_tag(struct repository *r, struct object *o, const char *warn, int warnlen)
69 while (o && o->type == OBJ_TAG)
70 if (((struct tag *)o)->tagged)
71 o = parse_object(r, &((struct tag *)o)->tagged->oid);
76 warnlen = strlen(warn);
77 error("missing object referenced by '%.*s'", warnlen, warn);
82 struct object *deref_tag_noverify(struct object *o)
84 while (o && o->type == OBJ_TAG) {
85 o = parse_object(the_repository, &o->oid);
86 if (o && o->type == OBJ_TAG && ((struct tag *)o)->tagged)
87 o = ((struct tag *)o)->tagged;
94 struct tag *lookup_tag(struct repository *r, const struct object_id *oid)
96 struct object *obj = lookup_object(r, oid->hash);
98 return create_object(r, oid->hash,
100 return object_as_type(r, obj, OBJ_TAG, 0);
103 static timestamp_t parse_tag_date(const char *buf, const char *tail)
107 while (buf < tail && *buf++ != '>')
112 while (buf < tail && *buf++ != '\n')
116 /* dateptr < buf && buf[-1] == '\n', so parsing will stop at buf-1 */
117 return parse_timestamp(dateptr, NULL, 10);
120 void release_tag_memory(struct tag *t)
124 t->object.parsed = 0;
128 int parse_tag_buffer(struct repository *r, struct tag *item, const void *data, unsigned long size)
130 struct object_id oid;
132 const char *bufptr = data;
133 const char *tail = bufptr + size;
136 if (item->object.parsed)
138 item->object.parsed = 1;
140 if (size < GIT_SHA1_HEXSZ + 24)
142 if (memcmp("object ", bufptr, 7) || parse_oid_hex(bufptr + 7, &oid, &bufptr) || *bufptr++ != '\n')
145 if (!starts_with(bufptr, "type "))
148 nl = memchr(bufptr, '\n', tail - bufptr);
149 if (!nl || sizeof(type) <= (nl - bufptr))
151 memcpy(type, bufptr, nl - bufptr);
152 type[nl - bufptr] = '\0';
155 if (!strcmp(type, blob_type)) {
156 item->tagged = (struct object *)lookup_blob(r, &oid);
157 } else if (!strcmp(type, tree_type)) {
158 item->tagged = (struct object *)lookup_tree(r, &oid);
159 } else if (!strcmp(type, commit_type)) {
160 item->tagged = (struct object *)lookup_commit(r, &oid);
161 } else if (!strcmp(type, tag_type)) {
162 item->tagged = (struct object *)lookup_tag(r, &oid);
164 error("Unknown type %s", type);
168 if (bufptr + 4 < tail && starts_with(bufptr, "tag "))
173 nl = memchr(bufptr, '\n', tail - bufptr);
176 item->tag = xmemdupz(bufptr, nl - bufptr);
179 if (bufptr + 7 < tail && starts_with(bufptr, "tagger "))
180 item->date = parse_tag_date(bufptr, tail);
187 int parse_tag(struct tag *item)
189 enum object_type type;
194 if (item->object.parsed)
196 data = read_object_file(&item->object.oid, &type, &size);
198 return error("Could not read %s",
199 oid_to_hex(&item->object.oid));
200 if (type != OBJ_TAG) {
202 return error("Object %s not a tag",
203 oid_to_hex(&item->object.oid));
205 ret = parse_tag_buffer(the_repository, item, data, size);