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Commit | Line | Data |
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4250a5e5 | 1 | #include "cache.h" |
30ae764b | 2 | #include "walker.h" |
109cd76d | 3 | #include "repository.h" |
cbd53a21 | 4 | #include "object-store.h" |
4250a5e5 DB |
5 | #include "commit.h" |
6 | #include "tree.h" | |
1bc995a3 | 7 | #include "tree-walk.h" |
3173bd49 DB |
8 | #include "tag.h" |
9 | #include "blob.h" | |
cd541a68 | 10 | #include "refs.h" |
7655b411 | 11 | #include "progress.h" |
cd541a68 | 12 | |
94f5a121 | 13 | static struct object_id current_commit_oid; |
4250a5e5 | 14 | |
fa262cac | 15 | void walker_say(struct walker *walker, const char *fmt, ...) |
1e8be59d | 16 | { |
fa262cac JK |
17 | if (walker->get_verbosely) { |
18 | va_list ap; | |
19 | va_start(ap, fmt); | |
20 | vfprintf(stderr, fmt, ap); | |
21 | va_end(ap); | |
22 | } | |
e78d9772 JH |
23 | } |
24 | ||
0d7a6e4e | 25 | static void report_missing(const struct object *obj) |
b2d62f16 | 26 | { |
0d7a6e4e | 27 | fprintf(stderr, "Cannot obtain needed %s %s\n", |
debca9d2 | 28 | obj->type ? type_name(obj->type): "object", |
f2fd0760 | 29 | oid_to_hex(&obj->oid)); |
94f5a121 | 30 | if (!is_null_oid(¤t_commit_oid)) |
0d7a6e4e | 31 | fprintf(stderr, "while processing commit %s.\n", |
94f5a121 | 32 | oid_to_hex(¤t_commit_oid)); |
b2d62f16 JH |
33 | } |
34 | ||
30ae764b | 35 | static int process(struct walker *walker, struct object *obj); |
3173bd49 | 36 | |
30ae764b | 37 | static int process_tree(struct walker *walker, struct tree *tree) |
4250a5e5 | 38 | { |
1bc995a3 | 39 | struct tree_desc desc; |
4c068a98 | 40 | struct name_entry entry; |
4250a5e5 DB |
41 | |
42 | if (parse_tree(tree)) | |
43 | return -1; | |
44 | ||
6fda5e51 | 45 | init_tree_desc(&desc, tree->buffer, tree->size); |
4c068a98 | 46 | while (tree_entry(&desc, &entry)) { |
6f9012b6 JH |
47 | struct object *obj = NULL; |
48 | ||
582c7393 | 49 | /* submodule commits are not stored in the superproject */ |
68fb4650 | 50 | if (S_ISGITLINK(entry.mode)) |
582c7393 | 51 | continue; |
4c068a98 | 52 | if (S_ISDIR(entry.mode)) { |
f86bcc7b | 53 | struct tree *tree = lookup_tree(the_repository, |
ea82b2a0 | 54 | &entry.oid); |
6f9012b6 JH |
55 | if (tree) |
56 | obj = &tree->object; | |
57 | } | |
58 | else { | |
da14a7ff | 59 | struct blob *blob = lookup_blob(the_repository, |
ea82b2a0 | 60 | &entry.oid); |
6f9012b6 JH |
61 | if (blob) |
62 | obj = &blob->object; | |
2d9c58c6 | 63 | } |
30ae764b | 64 | if (!obj || process(walker, obj)) |
4250a5e5 | 65 | return -1; |
4250a5e5 | 66 | } |
6e454b9a | 67 | free_tree_buffer(tree); |
4250a5e5 DB |
68 | return 0; |
69 | } | |
70 | ||
208acbfb | 71 | /* Remember to update object flag allocation in object.h */ |
24451c31 SV |
72 | #define COMPLETE (1U << 0) |
73 | #define SEEN (1U << 1) | |
74 | #define TO_SCAN (1U << 2) | |
85d106c2 | 75 | |
d0ac30f2 | 76 | static struct commit_list *complete = NULL; |
22c6e1d0 | 77 | |
30ae764b | 78 | static int process_commit(struct walker *walker, struct commit *commit) |
4250a5e5 | 79 | { |
0b6b3429 MÅ |
80 | struct commit_list *parents; |
81 | ||
1e8be59d | 82 | if (parse_commit(commit)) |
4250a5e5 DB |
83 | return -1; |
84 | ||
22c6e1d0 | 85 | while (complete && complete->item->date >= commit->date) { |
d0ac30f2 | 86 | pop_most_recent_commit(&complete, COMPLETE); |
22c6e1d0 | 87 | } |
22c6e1d0 | 88 | |
d0ac30f2 | 89 | if (commit->object.flags & COMPLETE) |
22c6e1d0 DB |
90 | return 0; |
91 | ||
94f5a121 | 92 | oidcpy(¤t_commit_oid, &commit->object.oid); |
4250a5e5 | 93 | |
f2fd0760 | 94 | walker_say(walker, "walk %s\n", oid_to_hex(&commit->object.oid)); |
85d106c2 | 95 | |
c89b6e13 | 96 | if (process(walker, &get_commit_tree(commit)->object)) |
0b6b3429 MÅ |
97 | return -1; |
98 | ||
99 | for (parents = commit->parents; parents; parents = parents->next) { | |
100 | if (process(walker, &parents->item->object)) | |
4250a5e5 | 101 | return -1; |
4250a5e5 | 102 | } |
0b6b3429 | 103 | |
4250a5e5 DB |
104 | return 0; |
105 | } | |
106 | ||
30ae764b | 107 | static int process_tag(struct walker *walker, struct tag *tag) |
3173bd49 | 108 | { |
1e8be59d | 109 | if (parse_tag(tag)) |
3173bd49 | 110 | return -1; |
30ae764b | 111 | return process(walker, tag->tagged); |
3173bd49 DB |
112 | } |
113 | ||
1e8be59d DB |
114 | static struct object_list *process_queue = NULL; |
115 | static struct object_list **process_queue_end = &process_queue; | |
116 | ||
30ae764b | 117 | static int process_object(struct walker *walker, struct object *obj) |
3173bd49 | 118 | { |
1974632c | 119 | if (obj->type == OBJ_COMMIT) { |
30ae764b | 120 | if (process_commit(walker, (struct commit *)obj)) |
f88fcf8b DB |
121 | return -1; |
122 | return 0; | |
123 | } | |
1974632c | 124 | if (obj->type == OBJ_TREE) { |
30ae764b | 125 | if (process_tree(walker, (struct tree *)obj)) |
f88fcf8b DB |
126 | return -1; |
127 | return 0; | |
128 | } | |
1974632c | 129 | if (obj->type == OBJ_BLOB) { |
f88fcf8b DB |
130 | return 0; |
131 | } | |
1974632c | 132 | if (obj->type == OBJ_TAG) { |
30ae764b | 133 | if (process_tag(walker, (struct tag *)obj)) |
f88fcf8b | 134 | return -1; |
3173bd49 | 135 | return 0; |
f88fcf8b DB |
136 | } |
137 | return error("Unable to determine requirements " | |
138 | "of type %s for %s", | |
debca9d2 | 139 | type_name(obj->type), oid_to_hex(&obj->oid)); |
f88fcf8b DB |
140 | } |
141 | ||
30ae764b | 142 | static int process(struct walker *walker, struct object *obj) |
f88fcf8b | 143 | { |
a82d07e5 SV |
144 | if (obj->flags & SEEN) |
145 | return 0; | |
146 | obj->flags |= SEEN; | |
147 | ||
f2fd0760 | 148 | if (has_object_file(&obj->oid)) { |
f88fcf8b | 149 | /* We already have it, so we should scan it now. */ |
85d106c2 | 150 | obj->flags |= TO_SCAN; |
e5f38ec3 JH |
151 | } |
152 | else { | |
7b64d06b SV |
153 | if (obj->flags & COMPLETE) |
154 | return 0; | |
ed1c9977 | 155 | walker->prefetch(walker, obj->oid.hash); |
f88fcf8b | 156 | } |
a6080a0a | 157 | |
1e8be59d DB |
158 | object_list_insert(obj, process_queue_end); |
159 | process_queue_end = &(*process_queue_end)->next; | |
1e8be59d DB |
160 | return 0; |
161 | } | |
162 | ||
30ae764b | 163 | static int loop(struct walker *walker) |
1e8be59d | 164 | { |
85d106c2 | 165 | struct object_list *elem; |
7655b411 RS |
166 | struct progress *progress = NULL; |
167 | uint64_t nr = 0; | |
168 | ||
169 | if (walker->get_progress) | |
170 | progress = start_delayed_progress(_("Fetching objects"), 0); | |
85d106c2 | 171 | |
1e8be59d DB |
172 | while (process_queue) { |
173 | struct object *obj = process_queue->item; | |
85d106c2 JH |
174 | elem = process_queue; |
175 | process_queue = elem->next; | |
176 | free(elem); | |
1e8be59d DB |
177 | if (!process_queue) |
178 | process_queue_end = &process_queue; | |
179 | ||
85d106c2 JH |
180 | /* If we are not scanning this object, we placed it in |
181 | * the queue because we needed to fetch it first. | |
182 | */ | |
183 | if (! (obj->flags & TO_SCAN)) { | |
ed1c9977 | 184 | if (walker->fetch(walker, obj->oid.hash)) { |
7655b411 | 185 | stop_progress(&progress); |
0d7a6e4e | 186 | report_missing(obj); |
85d106c2 JH |
187 | return -1; |
188 | } | |
189 | } | |
1e8be59d | 190 | if (!obj->type) |
109cd76d | 191 | parse_object(the_repository, &obj->oid); |
7655b411 RS |
192 | if (process_object(walker, obj)) { |
193 | stop_progress(&progress); | |
f88fcf8b | 194 | return -1; |
7655b411 RS |
195 | } |
196 | display_progress(progress, ++nr); | |
1e8be59d | 197 | } |
7655b411 | 198 | stop_progress(&progress); |
1e8be59d | 199 | return 0; |
3173bd49 DB |
200 | } |
201 | ||
94f5a121 | 202 | static int interpret_target(struct walker *walker, char *target, struct object_id *oid) |
cd541a68 | 203 | { |
94f5a121 | 204 | if (!get_oid_hex(target, oid)) |
cd541a68 | 205 | return 0; |
8d9c5010 | 206 | if (!check_refname_format(target, 0)) { |
59c69c0c | 207 | struct ref *ref = alloc_ref(target); |
c13b2633 | 208 | if (!walker->fetch_ref(walker, ref)) { |
94f5a121 | 209 | oidcpy(oid, &ref->old_oid); |
c13b2633 | 210 | free(ref); |
cd541a68 DB |
211 | return 0; |
212 | } | |
c13b2633 | 213 | free(ref); |
cd541a68 DB |
214 | } |
215 | return -1; | |
216 | } | |
217 | ||
b4ebaf9e MH |
218 | static int mark_complete(const char *path, const struct object_id *oid, |
219 | int flag, void *cb_data) | |
22c6e1d0 | 220 | { |
21e1ee8f SB |
221 | struct commit *commit = lookup_commit_reference_gently(the_repository, |
222 | oid, 1); | |
b4ebaf9e | 223 | |
d0ac30f2 JH |
224 | if (commit) { |
225 | commit->object.flags |= COMPLETE; | |
3bc7a05b | 226 | commit_list_insert(commit, &complete); |
22c6e1d0 DB |
227 | } |
228 | return 0; | |
229 | } | |
cd541a68 | 230 | |
30ae764b | 231 | int walker_targets_stdin(char ***target, const char ***write_ref) |
8e87ca66 PB |
232 | { |
233 | int targets = 0, targets_alloc = 0; | |
f285a2d7 | 234 | struct strbuf buf = STRBUF_INIT; |
8e87ca66 | 235 | *target = NULL; *write_ref = NULL; |
8e87ca66 PB |
236 | while (1) { |
237 | char *rf_one = NULL; | |
238 | char *tg_one; | |
239 | ||
8f309aeb | 240 | if (strbuf_getline_lf(&buf, stdin) == EOF) |
8e87ca66 PB |
241 | break; |
242 | tg_one = buf.buf; | |
243 | rf_one = strchr(tg_one, '\t'); | |
244 | if (rf_one) | |
245 | *rf_one++ = 0; | |
246 | ||
247 | if (targets >= targets_alloc) { | |
248 | targets_alloc = targets_alloc ? targets_alloc * 2 : 64; | |
2756ca43 RS |
249 | REALLOC_ARRAY(*target, targets_alloc); |
250 | REALLOC_ARRAY(*write_ref, targets_alloc); | |
8e87ca66 | 251 | } |
9befac47 | 252 | (*target)[targets] = xstrdup(tg_one); |
8c53f071 | 253 | (*write_ref)[targets] = xstrdup_or_null(rf_one); |
8e87ca66 PB |
254 | targets++; |
255 | } | |
e6c019d0 | 256 | strbuf_release(&buf); |
8e87ca66 PB |
257 | return targets; |
258 | } | |
259 | ||
30ae764b | 260 | void walker_targets_free(int targets, char **target, const char **write_ref) |
8e87ca66 PB |
261 | { |
262 | while (targets--) { | |
263 | free(target[targets]); | |
24deea52 | 264 | if (write_ref) |
8e87ca66 PB |
265 | free((char *) write_ref[targets]); |
266 | } | |
267 | } | |
268 | ||
30ae764b DB |
269 | int walker_fetch(struct walker *walker, int targets, char **target, |
270 | const char **write_ref, const char *write_ref_log_details) | |
4250a5e5 | 271 | { |
b6b10bb4 RS |
272 | struct strbuf refname = STRBUF_INIT; |
273 | struct strbuf err = STRBUF_INIT; | |
274 | struct ref_transaction *transaction = NULL; | |
667b76ec | 275 | struct object_id *oids; |
b6b10bb4 RS |
276 | char *msg = NULL; |
277 | int i, ret = -1; | |
cd541a68 | 278 | |
98533b90 | 279 | save_commit_buffer = 0; |
4211e4d1 | 280 | |
667b76ec JK |
281 | ALLOC_ARRAY(oids, targets); |
282 | ||
b6b10bb4 RS |
283 | if (write_ref) { |
284 | transaction = ref_transaction_begin(&err); | |
285 | if (!transaction) { | |
286 | error("%s", err.buf); | |
287 | goto done; | |
d0740d92 | 288 | } |
cd541a68 DB |
289 | } |
290 | ||
3bc7a05b | 291 | if (!walker->get_recover) { |
b4ebaf9e | 292 | for_each_ref(mark_complete, NULL); |
3bc7a05b RS |
293 | commit_list_sort_by_date(&complete); |
294 | } | |
22c6e1d0 | 295 | |
4211e4d1 | 296 | for (i = 0; i < targets; i++) { |
94f5a121 | 297 | if (interpret_target(walker, target[i], oids + i)) { |
5f48741a | 298 | error("Could not interpret response from server '%s' as something to pull", target[i]); |
b6b10bb4 | 299 | goto done; |
4211e4d1 | 300 | } |
0ebbcf70 | 301 | if (process(walker, lookup_unknown_object(&oids[i]))) |
b6b10bb4 | 302 | goto done; |
4bd18c43 | 303 | } |
4211e4d1 | 304 | |
30ae764b | 305 | if (loop(walker)) |
b6b10bb4 RS |
306 | goto done; |
307 | if (!write_ref) { | |
308 | ret = 0; | |
309 | goto done; | |
310 | } | |
4211e4d1 | 311 | if (write_ref_log_details) { |
01d678a2 | 312 | msg = xstrfmt("fetch from %s", write_ref_log_details); |
4211e4d1 PB |
313 | } else { |
314 | msg = NULL; | |
4bd18c43 | 315 | } |
4211e4d1 | 316 | for (i = 0; i < targets; i++) { |
b6b10bb4 | 317 | if (!write_ref[i]) |
4211e4d1 | 318 | continue; |
b6b10bb4 RS |
319 | strbuf_reset(&refname); |
320 | strbuf_addf(&refname, "refs/%s", write_ref[i]); | |
321 | if (ref_transaction_update(transaction, refname.buf, | |
89f3bbdd | 322 | oids + i, NULL, 0, |
db7516ab | 323 | msg ? msg : "fetch (unknown)", |
b6b10bb4 RS |
324 | &err)) { |
325 | error("%s", err.buf); | |
326 | goto done; | |
327 | } | |
328 | } | |
db7516ab | 329 | if (ref_transaction_commit(transaction, &err)) { |
b6b10bb4 RS |
330 | error("%s", err.buf); |
331 | goto done; | |
4bd18c43 | 332 | } |
4211e4d1 | 333 | |
b6b10bb4 | 334 | ret = 0; |
30ae764b | 335 | |
b6b10bb4 RS |
336 | done: |
337 | ref_transaction_free(transaction); | |
338 | free(msg); | |
94f5a121 | 339 | free(oids); |
b6b10bb4 RS |
340 | strbuf_release(&err); |
341 | strbuf_release(&refname); | |
342 | return ret; | |
4250a5e5 | 343 | } |
30ae764b DB |
344 | |
345 | void walker_free(struct walker *walker) | |
346 | { | |
347 | walker->cleanup(walker); | |
348 | free(walker); | |
349 | } |