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Commit | Line | Data |
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b6fdc44c | 1 | #include "git-compat-util.h" |
fa796530 | 2 | #include "config.h" |
ec2101ab | 3 | #include "csum-file.h" |
f394e093 | 4 | #include "gettext.h" |
41771fa4 | 5 | #include "hex.h" |
08fd81c9 | 6 | #include "lockfile.h" |
08fd81c9 DS |
7 | #include "packfile.h" |
8 | #include "commit.h" | |
9 | #include "object.h" | |
59fb8770 | 10 | #include "refs.h" |
bc626927 | 11 | #include "hash-lookup.h" |
08fd81c9 | 12 | #include "commit-graph.h" |
87bed179 | 13 | #include "object-file.h" |
a034e910 | 14 | #include "object-store-ll.h" |
6f2d7430 | 15 | #include "oid-array.h" |
c339932b | 16 | #include "path.h" |
96af91d4 | 17 | #include "alloc.h" |
d6538246 DS |
18 | #include "hashmap.h" |
19 | #include "replace-object.h" | |
7b0f2292 | 20 | #include "progress.h" |
f97b9325 | 21 | #include "bloom.h" |
d21ee7d1 | 22 | #include "commit-slab.h" |
120ad2b0 | 23 | #include "shallow.h" |
0087a87b DS |
24 | #include "json-writer.h" |
25 | #include "trace2.h" | |
d4a4f929 | 26 | #include "tree.h" |
47410aa8 | 27 | #include "chunk-format.h" |
08fd81c9 | 28 | |
b23ea979 DS |
29 | void git_test_write_commit_graph_or_die(void) |
30 | { | |
31 | int flags = 0; | |
32 | if (!git_env_bool(GIT_TEST_COMMIT_GRAPH, 0)) | |
33 | return; | |
34 | ||
35 | if (git_env_bool(GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS, 0)) | |
36 | flags = COMMIT_GRAPH_WRITE_BLOOM_FILTERS; | |
37 | ||
38 | if (write_commit_graph_reachable(the_repository->objects->odb, | |
39 | flags, NULL)) | |
40 | die("failed to write commit-graph under GIT_TEST_COMMIT_GRAPH"); | |
41 | } | |
42 | ||
08fd81c9 DS |
43 | #define GRAPH_SIGNATURE 0x43475048 /* "CGPH" */ |
44 | #define GRAPH_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */ | |
45 | #define GRAPH_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */ | |
46 | #define GRAPH_CHUNKID_DATA 0x43444154 /* "CDAT" */ | |
6dbf4b81 DS |
47 | #define GRAPH_CHUNKID_GENERATION_DATA 0x47444132 /* "GDA2" */ |
48 | #define GRAPH_CHUNKID_GENERATION_DATA_OVERFLOW 0x47444f32 /* "GDO2" */ | |
5af7417b | 49 | #define GRAPH_CHUNKID_EXTRAEDGES 0x45444745 /* "EDGE" */ |
76ffbca7 GS |
50 | #define GRAPH_CHUNKID_BLOOMINDEXES 0x42494458 /* "BIDX" */ |
51 | #define GRAPH_CHUNKID_BLOOMDATA 0x42444154 /* "BDAT" */ | |
118bd570 | 52 | #define GRAPH_CHUNKID_BASE 0x42415345 /* "BASE" */ |
08fd81c9 | 53 | |
c1665998 | 54 | #define GRAPH_DATA_WIDTH (the_hash_algo->rawsz + 16) |
08fd81c9 DS |
55 | |
56 | #define GRAPH_VERSION_1 0x1 | |
57 | #define GRAPH_VERSION GRAPH_VERSION_1 | |
58 | ||
5af7417b | 59 | #define GRAPH_EXTRA_EDGES_NEEDED 0x80000000 |
08fd81c9 DS |
60 | #define GRAPH_EDGE_LAST_MASK 0x7fffffff |
61 | #define GRAPH_PARENT_NONE 0x70000000 | |
62 | ||
63 | #define GRAPH_LAST_EDGE 0x80000000 | |
64 | ||
0e3b97cc | 65 | #define GRAPH_HEADER_SIZE 8 |
08fd81c9 | 66 | #define GRAPH_FANOUT_SIZE (4 * 256) |
2692c2f6 | 67 | #define GRAPH_MIN_SIZE (GRAPH_HEADER_SIZE + 4 * CHUNK_TOC_ENTRY_SIZE \ |
c1665998 | 68 | + GRAPH_FANOUT_SIZE + the_hash_algo->rawsz) |
08fd81c9 | 69 | |
e8b63005 AK |
70 | #define CORRECTED_COMMIT_DATE_OFFSET_OVERFLOW (1ULL << 31) |
71 | ||
cb99a34e DS |
72 | /* Remember to update object flag allocation in object.h */ |
73 | #define REACHABLE (1u<<15) | |
74 | ||
72a2bfca AK |
75 | define_commit_slab(topo_level_slab, uint32_t); |
76 | ||
d21ee7d1 JK |
77 | /* Keep track of the order in which commits are added to our list. */ |
78 | define_commit_slab(commit_pos, int); | |
79 | static struct commit_pos commit_pos = COMMIT_SLAB_INIT(1, commit_pos); | |
80 | ||
81 | static void set_commit_pos(struct repository *r, const struct object_id *oid) | |
82 | { | |
83 | static int32_t max_pos; | |
84 | struct commit *commit = lookup_commit(r, oid); | |
85 | ||
86 | if (!commit) | |
87 | return; /* should never happen, but be lenient */ | |
88 | ||
89 | *commit_pos_at(&commit_pos, commit) = max_pos++; | |
90 | } | |
91 | ||
92 | static int commit_pos_cmp(const void *va, const void *vb) | |
08fd81c9 | 93 | { |
d21ee7d1 JK |
94 | const struct commit *a = *(const struct commit **)va; |
95 | const struct commit *b = *(const struct commit **)vb; | |
96 | return commit_pos_at(&commit_pos, a) - | |
97 | commit_pos_at(&commit_pos, b); | |
98 | } | |
99 | ||
4844812b AK |
100 | define_commit_slab(commit_graph_data_slab, struct commit_graph_data); |
101 | static struct commit_graph_data_slab commit_graph_data_slab = | |
102 | COMMIT_SLAB_INIT(1, commit_graph_data_slab); | |
103 | ||
702110aa DS |
104 | static int get_configured_generation_version(struct repository *r) |
105 | { | |
106 | int version = 2; | |
107 | repo_config_get_int(r, "commitgraph.generationversion", &version); | |
108 | return version; | |
109 | } | |
110 | ||
4844812b AK |
111 | uint32_t commit_graph_position(const struct commit *c) |
112 | { | |
113 | struct commit_graph_data *data = | |
114 | commit_graph_data_slab_peek(&commit_graph_data_slab, c); | |
115 | ||
116 | return data ? data->graph_pos : COMMIT_NOT_FROM_GRAPH; | |
117 | } | |
118 | ||
d7f92784 | 119 | timestamp_t commit_graph_generation(const struct commit *c) |
4844812b AK |
120 | { |
121 | struct commit_graph_data *data = | |
122 | commit_graph_data_slab_peek(&commit_graph_data_slab, c); | |
123 | ||
2ee11f72 DS |
124 | if (data && data->generation) |
125 | return data->generation; | |
4844812b | 126 | |
2ee11f72 | 127 | return GENERATION_NUMBER_INFINITY; |
4844812b AK |
128 | } |
129 | ||
868c9911 TB |
130 | static timestamp_t commit_graph_generation_from_graph(const struct commit *c) |
131 | { | |
132 | struct commit_graph_data *data = | |
133 | commit_graph_data_slab_peek(&commit_graph_data_slab, c); | |
134 | ||
135 | if (!data || data->graph_pos == COMMIT_NOT_FROM_GRAPH) | |
136 | return GENERATION_NUMBER_INFINITY; | |
137 | return data->generation; | |
138 | } | |
139 | ||
4844812b AK |
140 | static struct commit_graph_data *commit_graph_data_at(const struct commit *c) |
141 | { | |
142 | unsigned int i, nth_slab; | |
143 | struct commit_graph_data *data = | |
144 | commit_graph_data_slab_peek(&commit_graph_data_slab, c); | |
145 | ||
146 | if (data) | |
147 | return data; | |
148 | ||
149 | nth_slab = c->index / commit_graph_data_slab.slab_size; | |
150 | data = commit_graph_data_slab_at(&commit_graph_data_slab, c); | |
151 | ||
152 | /* | |
153 | * commit-slab initializes elements with zero, overwrite this with | |
154 | * COMMIT_NOT_FROM_GRAPH for graph_pos. | |
155 | * | |
156 | * We avoid initializing generation with checking if graph position | |
157 | * is not COMMIT_NOT_FROM_GRAPH. | |
158 | */ | |
159 | for (i = 0; i < commit_graph_data_slab.slab_size; i++) { | |
160 | commit_graph_data_slab.slab[nth_slab][i].graph_pos = | |
161 | COMMIT_NOT_FROM_GRAPH; | |
162 | } | |
163 | ||
164 | return data; | |
165 | } | |
166 | ||
e30c5ee7 AK |
167 | /* |
168 | * Should be used only while writing commit-graph as it compares | |
169 | * generation value of commits by directly accessing commit-slab. | |
170 | */ | |
3d112755 GS |
171 | static int commit_gen_cmp(const void *va, const void *vb) |
172 | { | |
173 | const struct commit *a = *(const struct commit **)va; | |
174 | const struct commit *b = *(const struct commit **)vb; | |
175 | ||
d7f92784 AK |
176 | const timestamp_t generation_a = commit_graph_data_at(a)->generation; |
177 | const timestamp_t generation_b = commit_graph_data_at(b)->generation; | |
3d112755 | 178 | /* lower generation commits first */ |
c752ad09 | 179 | if (generation_a < generation_b) |
3d112755 | 180 | return -1; |
c752ad09 | 181 | else if (generation_a > generation_b) |
3d112755 GS |
182 | return 1; |
183 | ||
184 | /* use date as a heuristic when generations are equal */ | |
185 | if (a->date < b->date) | |
186 | return -1; | |
187 | else if (a->date > b->date) | |
188 | return 1; | |
189 | return 0; | |
190 | } | |
191 | ||
d21ee7d1 | 192 | char *get_commit_graph_filename(struct object_directory *obj_dir) |
08fd81c9 | 193 | { |
d21ee7d1 | 194 | return xstrfmt("%s/info/commit-graph", obj_dir->path); |
08fd81c9 DS |
195 | } |
196 | ||
ad2dd5bb | 197 | static char *get_split_graph_filename(struct object_directory *odb, |
5c84b339 DS |
198 | const char *oid_hex) |
199 | { | |
ad2dd5bb TB |
200 | return xstrfmt("%s/info/commit-graphs/graph-%s.graph", odb->path, |
201 | oid_hex); | |
5c84b339 DS |
202 | } |
203 | ||
663b2b1b | 204 | char *get_commit_graph_chain_filename(struct object_directory *odb) |
5c84b339 | 205 | { |
ad2dd5bb | 206 | return xstrfmt("%s/info/commit-graphs/commit-graph-chain", odb->path); |
08fd81c9 DS |
207 | } |
208 | ||
2a2e32bd DS |
209 | static struct commit_graph *alloc_commit_graph(void) |
210 | { | |
211 | struct commit_graph *g = xcalloc(1, sizeof(*g)); | |
2a2e32bd DS |
212 | |
213 | return g; | |
214 | } | |
215 | ||
d6538246 DS |
216 | static int commit_graph_compatible(struct repository *r) |
217 | { | |
5cef295f DS |
218 | if (!r->gitdir) |
219 | return 0; | |
220 | ||
f1178380 | 221 | if (replace_refs_enabled(r)) { |
d6538246 | 222 | prepare_replace_object(r); |
cdc986a7 | 223 | if (hashmap_get_size(&r->objects->replace_map->map)) |
d6538246 DS |
224 | return 0; |
225 | } | |
226 | ||
20fd6d57 | 227 | prepare_commit_graft(r); |
ce16364e | 228 | if (r->parsed_objects && |
cdc986a7 | 229 | (r->parsed_objects->grafts_nr || r->parsed_objects->substituted_parent)) |
20fd6d57 | 230 | return 0; |
cdc986a7 | 231 | if (is_repository_shallow(r)) |
20fd6d57 DS |
232 | return 0; |
233 | ||
d6538246 DS |
234 | return 1; |
235 | } | |
236 | ||
61df89c8 ÆAB |
237 | int open_commit_graph(const char *graph_file, int *fd, struct stat *st) |
238 | { | |
239 | *fd = git_open(graph_file); | |
240 | if (*fd < 0) | |
241 | return 0; | |
242 | if (fstat(*fd, st)) { | |
243 | close(*fd); | |
244 | return 0; | |
245 | } | |
246 | return 1; | |
247 | } | |
248 | ||
ab14d067 TB |
249 | struct commit_graph *load_commit_graph_one_fd_st(struct repository *r, |
250 | int fd, struct stat *st, | |
a7df60ca | 251 | struct object_directory *odb) |
2a2e32bd DS |
252 | { |
253 | void *graph_map; | |
2a2e32bd | 254 | size_t graph_size; |
aa658574 | 255 | struct commit_graph *ret; |
2a2e32bd | 256 | |
61df89c8 | 257 | graph_size = xsize_t(st->st_size); |
2a2e32bd DS |
258 | |
259 | if (graph_size < GRAPH_MIN_SIZE) { | |
260 | close(fd); | |
67a530fa | 261 | error(_("commit-graph file is too small")); |
61df89c8 | 262 | return NULL; |
2a2e32bd DS |
263 | } |
264 | graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0); | |
c8828530 | 265 | close(fd); |
a92d8523 TB |
266 | prepare_repo_settings(r); |
267 | ret = parse_commit_graph(&r->settings, graph_map, graph_size); | |
aa658574 | 268 | |
a7df60ca TB |
269 | if (ret) |
270 | ret->odb = odb; | |
c8828530 | 271 | else |
aa658574 | 272 | munmap(graph_map, graph_size); |
aa658574 JS |
273 | |
274 | return ret; | |
275 | } | |
276 | ||
52e2e8d4 JK |
277 | static int graph_read_oid_fanout(const unsigned char *chunk_start, |
278 | size_t chunk_size, void *data) | |
2ac138d5 | 279 | { |
52e2e8d4 | 280 | struct commit_graph *g = data; |
4169d896 JK |
281 | int i; |
282 | ||
52e2e8d4 | 283 | if (chunk_size != 256 * sizeof(uint32_t)) |
e0203916 | 284 | return error(_("commit-graph oid fanout chunk is wrong size")); |
52e2e8d4 | 285 | g->chunk_oid_fanout = (const uint32_t *)chunk_start; |
d3b6f6c6 | 286 | g->num_commits = ntohl(g->chunk_oid_fanout[255]); |
2ac138d5 | 287 | |
4169d896 JK |
288 | for (i = 0; i < 255; i++) { |
289 | uint32_t oid_fanout1 = ntohl(g->chunk_oid_fanout[i]); | |
290 | uint32_t oid_fanout2 = ntohl(g->chunk_oid_fanout[i + 1]); | |
291 | ||
292 | if (oid_fanout1 > oid_fanout2) { | |
e0203916 | 293 | error(_("commit-graph fanout values out of order")); |
4169d896 JK |
294 | return 1; |
295 | } | |
296 | } | |
4169d896 | 297 | |
2ac138d5 ÆAB |
298 | return 0; |
299 | } | |
300 | ||
2692c2f6 DS |
301 | static int graph_read_oid_lookup(const unsigned char *chunk_start, |
302 | size_t chunk_size, void *data) | |
303 | { | |
304 | struct commit_graph *g = data; | |
305 | g->chunk_oid_lookup = chunk_start; | |
d3b6f6c6 JK |
306 | if (chunk_size / g->hash_len != g->num_commits) |
307 | return error(_("commit-graph OID lookup chunk is the wrong size")); | |
2692c2f6 DS |
308 | return 0; |
309 | } | |
310 | ||
b72df612 JK |
311 | static int graph_read_commit_data(const unsigned char *chunk_start, |
312 | size_t chunk_size, void *data) | |
313 | { | |
314 | struct commit_graph *g = data; | |
4bc6d432 | 315 | if (chunk_size / GRAPH_DATA_WIDTH != g->num_commits) |
e0203916 | 316 | return error(_("commit-graph commit data chunk is wrong size")); |
b72df612 JK |
317 | g->chunk_commit_data = chunk_start; |
318 | return 0; | |
319 | } | |
320 | ||
4a3c3466 JK |
321 | static int graph_read_generation_data(const unsigned char *chunk_start, |
322 | size_t chunk_size, void *data) | |
323 | { | |
324 | struct commit_graph *g = data; | |
4bc6d432 | 325 | if (chunk_size / sizeof(uint32_t) != g->num_commits) |
e0203916 | 326 | return error(_("commit-graph generations chunk is wrong size")); |
4a3c3466 JK |
327 | g->chunk_generation_data = chunk_start; |
328 | return 0; | |
329 | } | |
330 | ||
581e0f8b JK |
331 | static int graph_read_bloom_index(const unsigned char *chunk_start, |
332 | size_t chunk_size, void *data) | |
333 | { | |
334 | struct commit_graph *g = data; | |
4bc6d432 | 335 | if (chunk_size / 4 != g->num_commits) { |
e0203916 | 336 | warning(_("commit-graph changed-path index chunk is too small")); |
581e0f8b JK |
337 | return -1; |
338 | } | |
339 | g->chunk_bloom_indexes = chunk_start; | |
340 | return 0; | |
341 | } | |
342 | ||
2692c2f6 DS |
343 | static int graph_read_bloom_data(const unsigned char *chunk_start, |
344 | size_t chunk_size, void *data) | |
345 | { | |
346 | struct commit_graph *g = data; | |
347 | uint32_t hash_version; | |
920f400e JK |
348 | |
349 | if (chunk_size < BLOOMDATA_CHUNK_HEADER_SIZE) { | |
e0203916 JK |
350 | warning(_("ignoring too-small changed-path chunk" |
351 | " (%"PRIuMAX" < %"PRIuMAX") in commit-graph file"), | |
920f400e JK |
352 | (uintmax_t)chunk_size, |
353 | (uintmax_t)BLOOMDATA_CHUNK_HEADER_SIZE); | |
354 | return -1; | |
355 | } | |
356 | ||
2692c2f6 | 357 | g->chunk_bloom_data = chunk_start; |
920f400e | 358 | g->chunk_bloom_data_size = chunk_size; |
2692c2f6 DS |
359 | hash_version = get_be32(chunk_start); |
360 | ||
361 | if (hash_version != 1) | |
362 | return 0; | |
363 | ||
364 | g->bloom_filter_settings = xmalloc(sizeof(struct bloom_filter_settings)); | |
365 | g->bloom_filter_settings->hash_version = hash_version; | |
366 | g->bloom_filter_settings->num_hashes = get_be32(chunk_start + 4); | |
367 | g->bloom_filter_settings->bits_per_entry = get_be32(chunk_start + 8); | |
368 | g->bloom_filter_settings->max_changed_paths = DEFAULT_BLOOM_MAX_CHANGES; | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
a92d8523 | 373 | struct commit_graph *parse_commit_graph(struct repo_settings *s, |
ab14d067 | 374 | void *graph_map, size_t graph_size) |
aa658574 | 375 | { |
2692c2f6 | 376 | const unsigned char *data; |
aa658574 | 377 | struct commit_graph *graph; |
aa658574 JS |
378 | uint32_t graph_signature; |
379 | unsigned char graph_version, hash_version; | |
2692c2f6 | 380 | struct chunkfile *cf = NULL; |
aa658574 JS |
381 | |
382 | if (!graph_map) | |
383 | return NULL; | |
384 | ||
385 | if (graph_size < GRAPH_MIN_SIZE) | |
386 | return NULL; | |
387 | ||
2a2e32bd DS |
388 | data = (const unsigned char *)graph_map; |
389 | ||
390 | graph_signature = get_be32(data); | |
391 | if (graph_signature != GRAPH_SIGNATURE) { | |
93b4405f | 392 | error(_("commit-graph signature %X does not match signature %X"), |
2a2e32bd | 393 | graph_signature, GRAPH_SIGNATURE); |
aa658574 | 394 | return NULL; |
2a2e32bd DS |
395 | } |
396 | ||
397 | graph_version = *(unsigned char*)(data + 4); | |
398 | if (graph_version != GRAPH_VERSION) { | |
93b4405f | 399 | error(_("commit-graph version %X does not match version %X"), |
2a2e32bd | 400 | graph_version, GRAPH_VERSION); |
aa658574 | 401 | return NULL; |
2a2e32bd DS |
402 | } |
403 | ||
404 | hash_version = *(unsigned char*)(data + 5); | |
d9fef9d9 | 405 | if (hash_version != oid_version(the_hash_algo)) { |
93b4405f | 406 | error(_("commit-graph hash version %X does not match version %X"), |
d9fef9d9 | 407 | hash_version, oid_version(the_hash_algo)); |
aa658574 | 408 | return NULL; |
2a2e32bd DS |
409 | } |
410 | ||
411 | graph = alloc_commit_graph(); | |
412 | ||
c1665998 | 413 | graph->hash_len = the_hash_algo->rawsz; |
2a2e32bd | 414 | graph->num_chunks = *(unsigned char*)(data + 6); |
2a2e32bd DS |
415 | graph->data = graph_map; |
416 | graph->data_len = graph_size; | |
417 | ||
2ad4f1a7 | 418 | if (graph_size < GRAPH_HEADER_SIZE + |
2692c2f6 | 419 | (graph->num_chunks + 1) * CHUNK_TOC_ENTRY_SIZE + |
2ad4f1a7 SG |
420 | GRAPH_FANOUT_SIZE + the_hash_algo->rawsz) { |
421 | error(_("commit-graph file is too small to hold %u chunks"), | |
422 | graph->num_chunks); | |
423 | free(graph); | |
424 | return NULL; | |
425 | } | |
426 | ||
2692c2f6 | 427 | cf = init_chunkfile(NULL); |
118bd570 | 428 | |
2692c2f6 | 429 | if (read_table_of_contents(cf, graph->data, graph_size, |
c9b9fefc | 430 | GRAPH_HEADER_SIZE, graph->num_chunks, 1)) |
2692c2f6 | 431 | goto free_and_return; |
2a2e32bd | 432 | |
8bd40ed2 JK |
433 | if (read_chunk(cf, GRAPH_CHUNKID_OIDFANOUT, graph_read_oid_fanout, graph)) { |
434 | error(_("commit-graph required OID fanout chunk missing or corrupted")); | |
435 | goto free_and_return; | |
436 | } | |
437 | if (read_chunk(cf, GRAPH_CHUNKID_OIDLOOKUP, graph_read_oid_lookup, graph)) { | |
438 | error(_("commit-graph required OID lookup chunk missing or corrupted")); | |
439 | goto free_and_return; | |
440 | } | |
441 | if (read_chunk(cf, GRAPH_CHUNKID_DATA, graph_read_commit_data, graph)) { | |
442 | error(_("commit-graph required commit data chunk missing or corrupted")); | |
443 | goto free_and_return; | |
444 | } | |
445 | ||
9622610e JK |
446 | pair_chunk(cf, GRAPH_CHUNKID_EXTRAEDGES, &graph->chunk_extra_edges, |
447 | &graph->chunk_extra_edges_size); | |
6cf61d0d JK |
448 | pair_chunk(cf, GRAPH_CHUNKID_BASE, &graph->chunk_base_graphs, |
449 | &graph->chunk_base_graphs_size); | |
702110aa | 450 | |
a92d8523 | 451 | if (s->commit_graph_generation_version >= 2) { |
4a3c3466 JK |
452 | read_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA, |
453 | graph_read_generation_data, graph); | |
702110aa | 454 | pair_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA_OVERFLOW, |
ee6a7924 JK |
455 | &graph->chunk_generation_data_overflow, |
456 | &graph->chunk_generation_data_overflow_size); | |
3b0199d4 DS |
457 | |
458 | if (graph->chunk_generation_data) | |
459 | graph->read_generation_data = 1; | |
702110aa | 460 | } |
2692c2f6 | 461 | |
a92d8523 | 462 | if (s->commit_graph_read_changed_paths) { |
581e0f8b JK |
463 | read_chunk(cf, GRAPH_CHUNKID_BLOOMINDEXES, |
464 | graph_read_bloom_index, graph); | |
2692c2f6 DS |
465 | read_chunk(cf, GRAPH_CHUNKID_BLOOMDATA, |
466 | graph_read_bloom_data, graph); | |
2a2e32bd DS |
467 | } |
468 | ||
76ffbca7 GS |
469 | if (graph->chunk_bloom_indexes && graph->chunk_bloom_data) { |
470 | init_bloom_filters(); | |
471 | } else { | |
472 | /* We need both the bloom chunks to exist together. Else ignore the data */ | |
473 | graph->chunk_bloom_indexes = NULL; | |
474 | graph->chunk_bloom_data = NULL; | |
fbda77c6 | 475 | FREE_AND_NULL(graph->bloom_filter_settings); |
76ffbca7 GS |
476 | } |
477 | ||
92e2cab9 | 478 | oidread(&graph->oid, graph->data + graph->data_len - graph->hash_len); |
118bd570 | 479 | |
2692c2f6 | 480 | free_chunkfile(cf); |
2a2e32bd | 481 | return graph; |
fbda77c6 JT |
482 | |
483 | free_and_return: | |
2692c2f6 | 484 | free_chunkfile(cf); |
fbda77c6 JT |
485 | free(graph->bloom_filter_settings); |
486 | free(graph); | |
487 | return NULL; | |
2a2e32bd DS |
488 | } |
489 | ||
ab14d067 TB |
490 | static struct commit_graph *load_commit_graph_one(struct repository *r, |
491 | const char *graph_file, | |
a7df60ca | 492 | struct object_directory *odb) |
61df89c8 ÆAB |
493 | { |
494 | ||
495 | struct stat st; | |
496 | int fd; | |
6c622f9f | 497 | struct commit_graph *g; |
61df89c8 ÆAB |
498 | int open_ok = open_commit_graph(graph_file, &fd, &st); |
499 | ||
500 | if (!open_ok) | |
501 | return NULL; | |
502 | ||
ab14d067 | 503 | g = load_commit_graph_one_fd_st(r, fd, &st, odb); |
6c622f9f DS |
504 | |
505 | if (g) | |
506 | g->filename = xstrdup(graph_file); | |
507 | ||
508 | return g; | |
61df89c8 ÆAB |
509 | } |
510 | ||
13c24992 TB |
511 | static struct commit_graph *load_commit_graph_v1(struct repository *r, |
512 | struct object_directory *odb) | |
5c84b339 | 513 | { |
ad2dd5bb | 514 | char *graph_name = get_commit_graph_filename(odb); |
ab14d067 | 515 | struct commit_graph *g = load_commit_graph_one(r, graph_name, odb); |
5c84b339 DS |
516 | free(graph_name); |
517 | ||
518 | return g; | |
519 | } | |
520 | ||
8298b543 JK |
521 | /* |
522 | * returns 1 if and only if all graphs in the chain have | |
523 | * corrected commit dates stored in the generation_data chunk. | |
524 | */ | |
525 | static int validate_mixed_generation_chain(struct commit_graph *g) | |
526 | { | |
527 | int read_generation_data = 1; | |
528 | struct commit_graph *p = g; | |
529 | ||
530 | while (read_generation_data && p) { | |
531 | read_generation_data = p->read_generation_data; | |
532 | p = p->base_graph; | |
533 | } | |
534 | ||
535 | if (read_generation_data) | |
536 | return 1; | |
537 | ||
538 | while (g) { | |
539 | g->read_generation_data = 0; | |
540 | g = g->base_graph; | |
541 | } | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
5c84b339 DS |
546 | static int add_graph_to_chain(struct commit_graph *g, |
547 | struct commit_graph *chain, | |
548 | struct object_id *oids, | |
549 | int n) | |
550 | { | |
551 | struct commit_graph *cur_g = chain; | |
552 | ||
118bd570 DS |
553 | if (n && !g->chunk_base_graphs) { |
554 | warning(_("commit-graph has no base graphs chunk")); | |
555 | return 0; | |
556 | } | |
557 | ||
6cf61d0d JK |
558 | if (g->chunk_base_graphs_size / g->hash_len < n) { |
559 | warning(_("commit-graph base graphs chunk is too small")); | |
560 | return 0; | |
561 | } | |
562 | ||
5c84b339 DS |
563 | while (n) { |
564 | n--; | |
118bd570 DS |
565 | |
566 | if (!cur_g || | |
567 | !oideq(&oids[n], &cur_g->oid) || | |
209250ef | 568 | !hasheq(oids[n].hash, g->chunk_base_graphs + st_mult(g->hash_len, n))) { |
118bd570 DS |
569 | warning(_("commit-graph chain does not match")); |
570 | return 0; | |
571 | } | |
572 | ||
5c84b339 DS |
573 | cur_g = cur_g->base_graph; |
574 | } | |
575 | ||
209250ef TB |
576 | if (chain) { |
577 | if (unsigned_add_overflows(chain->num_commits, | |
578 | chain->num_commits_in_base)) { | |
579 | warning(_("commit count in base graph too high: %"PRIuMAX), | |
580 | (uintmax_t)chain->num_commits_in_base); | |
581 | return 0; | |
582 | } | |
5c84b339 | 583 | g->num_commits_in_base = chain->num_commits + chain->num_commits_in_base; |
209250ef | 584 | } |
5c84b339 | 585 | |
991d549f JK |
586 | g->base_graph = chain; |
587 | ||
5c84b339 DS |
588 | return 1; |
589 | } | |
590 | ||
7ed76b4e JK |
591 | int open_commit_graph_chain(const char *chain_file, |
592 | int *fd, struct stat *st) | |
593 | { | |
594 | *fd = git_open(chain_file); | |
595 | if (*fd < 0) | |
596 | return 0; | |
597 | if (fstat(*fd, st)) { | |
598 | close(*fd); | |
599 | return 0; | |
600 | } | |
7754a565 | 601 | if (st->st_size < the_hash_algo->hexsz) { |
7ed76b4e | 602 | close(*fd); |
7754a565 JK |
603 | if (!st->st_size) { |
604 | /* treat empty files the same as missing */ | |
605 | errno = ENOENT; | |
606 | } else { | |
e0203916 | 607 | warning(_("commit-graph chain file too small")); |
7754a565 JK |
608 | errno = EINVAL; |
609 | } | |
7ed76b4e JK |
610 | return 0; |
611 | } | |
612 | return 1; | |
613 | } | |
614 | ||
615 | struct commit_graph *load_commit_graph_chain_fd_st(struct repository *r, | |
5f259197 JK |
616 | int fd, struct stat *st, |
617 | int *incomplete_chain) | |
5c84b339 DS |
618 | { |
619 | struct commit_graph *graph_chain = NULL; | |
620 | struct strbuf line = STRBUF_INIT; | |
5c84b339 DS |
621 | struct object_id *oids; |
622 | int i = 0, valid = 1, count; | |
7ed76b4e | 623 | FILE *fp = xfdopen(fd, "r"); |
5c84b339 | 624 | |
7ed76b4e | 625 | count = st->st_size / (the_hash_algo->hexsz + 1); |
ca56dadb | 626 | CALLOC_ARRAY(oids, count); |
5c84b339 | 627 | |
c523035c DS |
628 | prepare_alt_odb(r); |
629 | ||
630 | for (i = 0; i < count; i++) { | |
631 | struct object_directory *odb; | |
5c84b339 DS |
632 | |
633 | if (strbuf_getline_lf(&line, fp) == EOF) | |
634 | break; | |
635 | ||
636 | if (get_oid_hex(line.buf, &oids[i])) { | |
637 | warning(_("invalid commit-graph chain: line '%s' not a hash"), | |
638 | line.buf); | |
639 | valid = 0; | |
640 | break; | |
641 | } | |
642 | ||
c523035c DS |
643 | valid = 0; |
644 | for (odb = r->objects->odb; odb; odb = odb->next) { | |
ad2dd5bb | 645 | char *graph_name = get_split_graph_filename(odb, line.buf); |
ab14d067 | 646 | struct commit_graph *g = load_commit_graph_one(r, graph_name, odb); |
5c84b339 | 647 | |
c523035c DS |
648 | free(graph_name); |
649 | ||
650 | if (g) { | |
c523035c DS |
651 | if (add_graph_to_chain(g, graph_chain, oids, i)) { |
652 | graph_chain = g; | |
653 | valid = 1; | |
1d94abfe JK |
654 | } else { |
655 | free_commit_graph(g); | |
c523035c DS |
656 | } |
657 | ||
658 | break; | |
659 | } | |
660 | } | |
661 | ||
662 | if (!valid) { | |
663 | warning(_("unable to find all commit-graph files")); | |
664 | break; | |
665 | } | |
5c84b339 DS |
666 | } |
667 | ||
8298b543 JK |
668 | validate_mixed_generation_chain(graph_chain); |
669 | ||
5c84b339 DS |
670 | free(oids); |
671 | fclose(fp); | |
0aa6bce7 | 672 | strbuf_release(&line); |
5c84b339 | 673 | |
5f259197 | 674 | *incomplete_chain = !valid; |
5c84b339 DS |
675 | return graph_chain; |
676 | } | |
677 | ||
7ed76b4e JK |
678 | static struct commit_graph *load_commit_graph_chain(struct repository *r, |
679 | struct object_directory *odb) | |
680 | { | |
681 | char *chain_file = get_commit_graph_chain_filename(odb); | |
682 | struct stat st; | |
683 | int fd; | |
684 | struct commit_graph *g = NULL; | |
685 | ||
686 | if (open_commit_graph_chain(chain_file, &fd, &st)) { | |
5f259197 | 687 | int incomplete; |
7ed76b4e | 688 | /* ownership of fd is taken over by load function */ |
5f259197 | 689 | g = load_commit_graph_chain_fd_st(r, fd, &st, &incomplete); |
7ed76b4e JK |
690 | } |
691 | ||
692 | free(chain_file); | |
693 | return g; | |
694 | } | |
695 | ||
13c24992 TB |
696 | struct commit_graph *read_commit_graph_one(struct repository *r, |
697 | struct object_directory *odb) | |
5c84b339 | 698 | { |
13c24992 | 699 | struct commit_graph *g = load_commit_graph_v1(r, odb); |
5c84b339 DS |
700 | |
701 | if (!g) | |
13c24992 | 702 | g = load_commit_graph_chain(r, odb); |
5c84b339 DS |
703 | |
704 | return g; | |
61df89c8 ÆAB |
705 | } |
706 | ||
13c24992 TB |
707 | static void prepare_commit_graph_one(struct repository *r, |
708 | struct object_directory *odb) | |
177722b3 | 709 | { |
177722b3 | 710 | |
dade47c0 | 711 | if (r->objects->commit_graph) |
177722b3 DS |
712 | return; |
713 | ||
13c24992 | 714 | r->objects->commit_graph = read_commit_graph_one(r, odb); |
177722b3 DS |
715 | } |
716 | ||
5faf357b JT |
717 | /* |
718 | * Return 1 if commit_graph is non-NULL, and 0 otherwise. | |
719 | * | |
15beaaa3 | 720 | * On the first invocation, this function attempts to load the commit |
5faf357b JT |
721 | * graph if the_repository is configured to have one. |
722 | */ | |
dade47c0 | 723 | static int prepare_commit_graph(struct repository *r) |
177722b3 | 724 | { |
263db403 | 725 | struct object_directory *odb; |
dade47c0 | 726 | |
6abada18 | 727 | /* |
0803f9c7 LD |
728 | * Early return if there is no git dir or if the commit graph is |
729 | * disabled. | |
730 | * | |
6abada18 JK |
731 | * This must come before the "already attempted?" check below, because |
732 | * we want to disable even an already-loaded graph file. | |
733 | */ | |
0803f9c7 | 734 | if (!r->gitdir || r->commit_graph_disabled) |
6abada18 | 735 | return 0; |
43d35618 | 736 | |
dade47c0 JT |
737 | if (r->objects->commit_graph_attempted) |
738 | return !!r->objects->commit_graph; | |
739 | r->objects->commit_graph_attempted = 1; | |
740 | ||
7211b9e7 DS |
741 | prepare_repo_settings(r); |
742 | ||
859fdc0c | 743 | if (!git_env_bool(GIT_TEST_COMMIT_GRAPH, 0) && |
7211b9e7 | 744 | r->settings.core_commit_graph != 1) |
dade47c0 JT |
745 | /* |
746 | * This repository is not configured to use commit graphs, so | |
747 | * do not load one. (But report commit_graph_attempted anyway | |
748 | * so that commit graph loading is not attempted again for this | |
749 | * repository.) | |
750 | */ | |
5faf357b JT |
751 | return 0; |
752 | ||
d6538246 DS |
753 | if (!commit_graph_compatible(r)) |
754 | return 0; | |
755 | ||
dade47c0 | 756 | prepare_alt_odb(r); |
f0eaf638 | 757 | for (odb = r->objects->odb; |
263db403 JK |
758 | !r->objects->commit_graph && odb; |
759 | odb = odb->next) | |
13c24992 | 760 | prepare_commit_graph_one(r, odb); |
dade47c0 | 761 | return !!r->objects->commit_graph; |
177722b3 DS |
762 | } |
763 | ||
6cc01743 DS |
764 | int generation_numbers_enabled(struct repository *r) |
765 | { | |
766 | uint32_t first_generation; | |
767 | struct commit_graph *g; | |
768 | if (!prepare_commit_graph(r)) | |
769 | return 0; | |
770 | ||
771 | g = r->objects->commit_graph; | |
772 | ||
773 | if (!g->num_commits) | |
774 | return 0; | |
775 | ||
776 | first_generation = get_be32(g->chunk_commit_data + | |
777 | g->hash_len + 8) >> 2; | |
778 | ||
779 | return !!first_generation; | |
780 | } | |
781 | ||
8d00d7c3 AK |
782 | int corrected_commit_dates_enabled(struct repository *r) |
783 | { | |
784 | struct commit_graph *g; | |
785 | if (!prepare_commit_graph(r)) | |
786 | return 0; | |
787 | ||
788 | g = r->objects->commit_graph; | |
789 | ||
790 | if (!g->num_commits) | |
791 | return 0; | |
792 | ||
793 | return g->read_generation_data; | |
794 | } | |
795 | ||
4f364405 TB |
796 | struct bloom_filter_settings *get_bloom_filter_settings(struct repository *r) |
797 | { | |
798 | struct commit_graph *g = r->objects->commit_graph; | |
799 | while (g) { | |
800 | if (g->bloom_filter_settings) | |
801 | return g->bloom_filter_settings; | |
802 | g = g->base_graph; | |
803 | } | |
804 | return NULL; | |
805 | } | |
806 | ||
c3a3a964 | 807 | void close_commit_graph(struct raw_object_store *o) |
177722b3 | 808 | { |
d70f554c JK |
809 | if (!o->commit_graph) |
810 | return; | |
811 | ||
ac6d45d1 | 812 | clear_commit_graph_data_slab(&commit_graph_data_slab); |
09a75abb | 813 | free_commit_graph(o->commit_graph); |
c3a3a964 | 814 | o->commit_graph = NULL; |
177722b3 DS |
815 | } |
816 | ||
809ea28f | 817 | static int bsearch_graph(struct commit_graph *g, const struct object_id *oid, uint32_t *pos) |
177722b3 DS |
818 | { |
819 | return bsearch_hash(oid->hash, g->chunk_oid_fanout, | |
820 | g->chunk_oid_lookup, g->hash_len, pos); | |
821 | } | |
822 | ||
d4f4d60f DS |
823 | static void load_oid_from_graph(struct commit_graph *g, |
824 | uint32_t pos, | |
825 | struct object_id *oid) | |
826 | { | |
827 | uint32_t lex_index; | |
828 | ||
829 | while (g && pos < g->num_commits_in_base) | |
830 | g = g->base_graph; | |
831 | ||
832 | if (!g) | |
833 | BUG("NULL commit-graph"); | |
834 | ||
835 | if (pos >= g->num_commits + g->num_commits_in_base) | |
836 | die(_("invalid commit position. commit-graph is likely corrupt")); | |
837 | ||
838 | lex_index = pos - g->num_commits_in_base; | |
839 | ||
0bd8f30a | 840 | oidread(oid, g->chunk_oid_lookup + st_mult(g->hash_len, lex_index)); |
d4f4d60f DS |
841 | } |
842 | ||
4f542b7a SB |
843 | static struct commit_list **insert_parent_or_die(struct repository *r, |
844 | struct commit_graph *g, | |
d4f4d60f | 845 | uint32_t pos, |
177722b3 DS |
846 | struct commit_list **pptr) |
847 | { | |
848 | struct commit *c; | |
849 | struct object_id oid; | |
96af91d4 | 850 | |
d4f4d60f DS |
851 | if (pos >= g->num_commits + g->num_commits_in_base) |
852 | die("invalid parent position %"PRIu32, pos); | |
53614b13 | 853 | |
d4f4d60f | 854 | load_oid_from_graph(g, pos, &oid); |
4f542b7a | 855 | c = lookup_commit(r, &oid); |
177722b3 | 856 | if (!c) |
4f5b532d | 857 | die(_("could not find commit %s"), oid_to_hex(&oid)); |
c49c82aa | 858 | commit_graph_data_at(c)->graph_pos = pos; |
177722b3 DS |
859 | return &commit_list_insert(c, pptr)->next; |
860 | } | |
861 | ||
e2838d85 DS |
862 | static void fill_commit_graph_info(struct commit *item, struct commit_graph *g, uint32_t pos) |
863 | { | |
d4f4d60f | 864 | const unsigned char *commit_data; |
c752ad09 | 865 | struct commit_graph_data *graph_data; |
e8b63005 AK |
866 | uint32_t lex_index, offset_pos; |
867 | uint64_t date_high, date_low, offset; | |
d4f4d60f DS |
868 | |
869 | while (pos < g->num_commits_in_base) | |
870 | g = g->base_graph; | |
871 | ||
f90fca63 AK |
872 | if (pos >= g->num_commits + g->num_commits_in_base) |
873 | die(_("invalid commit position. commit-graph is likely corrupt")); | |
874 | ||
d4f4d60f | 875 | lex_index = pos - g->num_commits_in_base; |
2740ed1c | 876 | commit_data = g->chunk_commit_data + st_mult(GRAPH_DATA_WIDTH, lex_index); |
c752ad09 AK |
877 | |
878 | graph_data = commit_graph_data_at(item); | |
879 | graph_data->graph_pos = pos; | |
f90fca63 AK |
880 | |
881 | date_high = get_be32(commit_data + g->hash_len + 8) & 0x3; | |
882 | date_low = get_be32(commit_data + g->hash_len + 12); | |
883 | item->date = (timestamp_t)((date_high << 32) | date_low); | |
884 | ||
1fdc383c | 885 | if (g->read_generation_data) { |
2740ed1c | 886 | offset = (timestamp_t)get_be32(g->chunk_generation_data + st_mult(sizeof(uint32_t), lex_index)); |
e8b63005 AK |
887 | |
888 | if (offset & CORRECTED_COMMIT_DATE_OFFSET_OVERFLOW) { | |
889 | if (!g->chunk_generation_data_overflow) | |
890 | die(_("commit-graph requires overflow generation data but has none")); | |
891 | ||
892 | offset_pos = offset ^ CORRECTED_COMMIT_DATE_OFFSET_OVERFLOW; | |
ee6a7924 JK |
893 | if (g->chunk_generation_data_overflow_size / sizeof(uint64_t) <= offset_pos) |
894 | die(_("commit-graph overflow generation data is too small")); | |
895 | graph_data->generation = item->date + | |
896 | get_be64(g->chunk_generation_data_overflow + sizeof(uint64_t) * offset_pos); | |
e8b63005 AK |
897 | } else |
898 | graph_data->generation = item->date + offset; | |
899 | } else | |
900 | graph_data->generation = get_be32(commit_data + g->hash_len + 8) >> 2; | |
72a2bfca AK |
901 | |
902 | if (g->topo_levels) | |
903 | *topo_level_slab_at(g->topo_levels, item) = get_be32(commit_data + g->hash_len + 8) >> 2; | |
e2838d85 DS |
904 | } |
905 | ||
a133c40b NTND |
906 | static inline void set_commit_tree(struct commit *c, struct tree *t) |
907 | { | |
908 | c->maybe_tree = t; | |
909 | } | |
910 | ||
4f542b7a SB |
911 | static int fill_commit_in_graph(struct repository *r, |
912 | struct commit *item, | |
913 | struct commit_graph *g, uint32_t pos) | |
177722b3 | 914 | { |
177722b3 | 915 | uint32_t edge_value; |
9622610e | 916 | uint32_t parent_data_pos; |
177722b3 | 917 | struct commit_list **pptr; |
d4f4d60f DS |
918 | const unsigned char *commit_data; |
919 | uint32_t lex_index; | |
177722b3 | 920 | |
d4f4d60f DS |
921 | while (pos < g->num_commits_in_base) |
922 | g = g->base_graph; | |
923 | ||
f90fca63 | 924 | fill_commit_graph_info(item, g, pos); |
d4f4d60f | 925 | |
d4f4d60f | 926 | lex_index = pos - g->num_commits_in_base; |
50a71c29 | 927 | commit_data = g->chunk_commit_data + st_mult(g->hash_len + 16, lex_index); |
d4f4d60f DS |
928 | |
929 | item->object.parsed = 1; | |
177722b3 | 930 | |
a133c40b | 931 | set_commit_tree(item, NULL); |
177722b3 | 932 | |
177722b3 DS |
933 | pptr = &item->parents; |
934 | ||
935 | edge_value = get_be32(commit_data + g->hash_len); | |
936 | if (edge_value == GRAPH_PARENT_NONE) | |
937 | return 1; | |
4f542b7a | 938 | pptr = insert_parent_or_die(r, g, edge_value, pptr); |
177722b3 DS |
939 | |
940 | edge_value = get_be32(commit_data + g->hash_len + 4); | |
941 | if (edge_value == GRAPH_PARENT_NONE) | |
942 | return 1; | |
5af7417b | 943 | if (!(edge_value & GRAPH_EXTRA_EDGES_NEEDED)) { |
4f542b7a | 944 | pptr = insert_parent_or_die(r, g, edge_value, pptr); |
177722b3 DS |
945 | return 1; |
946 | } | |
947 | ||
9622610e | 948 | parent_data_pos = edge_value & GRAPH_EDGE_LAST_MASK; |
177722b3 | 949 | do { |
9622610e | 950 | if (g->chunk_extra_edges_size / sizeof(uint32_t) <= parent_data_pos) { |
e0203916 | 951 | error(_("commit-graph extra-edges pointer out of bounds")); |
9622610e JK |
952 | free_commit_list(item->parents); |
953 | item->parents = NULL; | |
954 | item->object.parsed = 0; | |
955 | return 0; | |
956 | } | |
957 | edge_value = get_be32(g->chunk_extra_edges + | |
958 | sizeof(uint32_t) * parent_data_pos); | |
4f542b7a | 959 | pptr = insert_parent_or_die(r, g, |
177722b3 DS |
960 | edge_value & GRAPH_EDGE_LAST_MASK, |
961 | pptr); | |
9622610e | 962 | parent_data_pos++; |
177722b3 DS |
963 | } while (!(edge_value & GRAPH_LAST_EDGE)); |
964 | ||
965 | return 1; | |
966 | } | |
967 | ||
809ea28f PS |
968 | static int search_commit_pos_in_graph(const struct object_id *id, struct commit_graph *g, uint32_t *pos) |
969 | { | |
970 | struct commit_graph *cur_g = g; | |
971 | uint32_t lex_index; | |
972 | ||
973 | while (cur_g && !bsearch_graph(cur_g, id, &lex_index)) | |
974 | cur_g = cur_g->base_graph; | |
975 | ||
976 | if (cur_g) { | |
977 | *pos = lex_index + cur_g->num_commits_in_base; | |
978 | return 1; | |
979 | } | |
980 | ||
981 | return 0; | |
982 | } | |
983 | ||
984 | static int find_commit_pos_in_graph(struct commit *item, struct commit_graph *g, uint32_t *pos) | |
e2838d85 | 985 | { |
c752ad09 AK |
986 | uint32_t graph_pos = commit_graph_position(item); |
987 | if (graph_pos != COMMIT_NOT_FROM_GRAPH) { | |
988 | *pos = graph_pos; | |
e2838d85 DS |
989 | return 1; |
990 | } else { | |
809ea28f | 991 | return search_commit_pos_in_graph(&item->object.oid, g, pos); |
e2838d85 DS |
992 | } |
993 | } | |
994 | ||
7805360b TB |
995 | int repo_find_commit_pos_in_graph(struct repository *r, struct commit *c, |
996 | uint32_t *pos) | |
997 | { | |
998 | if (!prepare_commit_graph(r)) | |
999 | return 0; | |
1000 | return find_commit_pos_in_graph(c, r->objects->commit_graph, pos); | |
1001 | } | |
1002 | ||
f559d6d4 PS |
1003 | struct commit *lookup_commit_in_graph(struct repository *repo, const struct object_id *id) |
1004 | { | |
e04838ea | 1005 | static int commit_graph_paranoia = -1; |
f559d6d4 PS |
1006 | struct commit *commit; |
1007 | uint32_t pos; | |
1008 | ||
e04838ea | 1009 | if (commit_graph_paranoia == -1) |
b1df3b38 | 1010 | commit_graph_paranoia = git_env_bool(GIT_COMMIT_GRAPH_PARANOIA, 0); |
e04838ea | 1011 | |
d6045294 | 1012 | if (!prepare_commit_graph(repo)) |
f559d6d4 PS |
1013 | return NULL; |
1014 | if (!search_commit_pos_in_graph(id, repo->objects->commit_graph, &pos)) | |
1015 | return NULL; | |
e04838ea | 1016 | if (commit_graph_paranoia && !has_object(repo, id, 0)) |
f559d6d4 PS |
1017 | return NULL; |
1018 | ||
1019 | commit = lookup_commit(repo, id); | |
1020 | if (!commit) | |
1021 | return NULL; | |
1022 | if (commit->object.parsed) | |
1023 | return commit; | |
1024 | ||
1025 | if (!fill_commit_in_graph(repo, commit, repo->objects->commit_graph, pos)) | |
1026 | return NULL; | |
1027 | ||
1028 | return commit; | |
1029 | } | |
1030 | ||
4f542b7a SB |
1031 | static int parse_commit_in_graph_one(struct repository *r, |
1032 | struct commit_graph *g, | |
1033 | struct commit *item) | |
177722b3 | 1034 | { |
e2838d85 DS |
1035 | uint32_t pos; |
1036 | ||
177722b3 DS |
1037 | if (item->object.parsed) |
1038 | return 1; | |
ee797053 | 1039 | |
809ea28f | 1040 | if (find_commit_pos_in_graph(item, g, &pos)) |
4f542b7a | 1041 | return fill_commit_in_graph(r, item, g, pos); |
ee797053 DS |
1042 | |
1043 | return 0; | |
1044 | } | |
1045 | ||
dade47c0 | 1046 | int parse_commit_in_graph(struct repository *r, struct commit *item) |
ee797053 | 1047 | { |
7b671f8c DS |
1048 | static int checked_env = 0; |
1049 | ||
1050 | if (!checked_env && | |
1051 | git_env_bool(GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE, 0)) | |
1052 | die("dying as requested by the '%s' variable on commit-graph parse!", | |
1053 | GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE); | |
1054 | checked_env = 1; | |
1055 | ||
dade47c0 | 1056 | if (!prepare_commit_graph(r)) |
ee797053 | 1057 | return 0; |
4f542b7a | 1058 | return parse_commit_in_graph_one(r, r->objects->commit_graph, item); |
177722b3 DS |
1059 | } |
1060 | ||
dade47c0 | 1061 | void load_commit_graph_info(struct repository *r, struct commit *item) |
e2838d85 DS |
1062 | { |
1063 | uint32_t pos; | |
7805360b | 1064 | if (repo_find_commit_pos_in_graph(r, item, &pos)) |
dade47c0 | 1065 | fill_commit_graph_info(item, r->objects->commit_graph, pos); |
e2838d85 DS |
1066 | } |
1067 | ||
4f542b7a SB |
1068 | static struct tree *load_tree_for_commit(struct repository *r, |
1069 | struct commit_graph *g, | |
1070 | struct commit *c) | |
7b8a21db DS |
1071 | { |
1072 | struct object_id oid; | |
d4f4d60f | 1073 | const unsigned char *commit_data; |
c752ad09 | 1074 | uint32_t graph_pos = commit_graph_position(c); |
d4f4d60f | 1075 | |
c752ad09 | 1076 | while (graph_pos < g->num_commits_in_base) |
d4f4d60f DS |
1077 | g = g->base_graph; |
1078 | ||
1079 | commit_data = g->chunk_commit_data + | |
51c31a64 | 1080 | st_mult(GRAPH_DATA_WIDTH, graph_pos - g->num_commits_in_base); |
7b8a21db | 1081 | |
92e2cab9 | 1082 | oidread(&oid, commit_data); |
a133c40b | 1083 | set_commit_tree(c, lookup_tree(r, &oid)); |
7b8a21db DS |
1084 | |
1085 | return c->maybe_tree; | |
1086 | } | |
1087 | ||
4f542b7a SB |
1088 | static struct tree *get_commit_tree_in_graph_one(struct repository *r, |
1089 | struct commit_graph *g, | |
0cbef8f8 | 1090 | const struct commit *c) |
7b8a21db DS |
1091 | { |
1092 | if (c->maybe_tree) | |
1093 | return c->maybe_tree; | |
c49c82aa | 1094 | if (commit_graph_position(c) == COMMIT_NOT_FROM_GRAPH) |
0cbef8f8 DS |
1095 | BUG("get_commit_tree_in_graph_one called from non-commit-graph commit"); |
1096 | ||
4f542b7a | 1097 | return load_tree_for_commit(r, g, (struct commit *)c); |
0cbef8f8 | 1098 | } |
7b8a21db | 1099 | |
dade47c0 | 1100 | struct tree *get_commit_tree_in_graph(struct repository *r, const struct commit *c) |
0cbef8f8 | 1101 | { |
4f542b7a | 1102 | return get_commit_tree_in_graph_one(r, r->objects->commit_graph, c); |
7b8a21db DS |
1103 | } |
1104 | ||
c9905bea DS |
1105 | struct packed_commit_list { |
1106 | struct commit **list; | |
3361390c JK |
1107 | size_t nr; |
1108 | size_t alloc; | |
c9905bea DS |
1109 | }; |
1110 | ||
c9905bea DS |
1111 | struct write_commit_graph_context { |
1112 | struct repository *r; | |
0bd52e27 | 1113 | struct object_directory *odb; |
c9905bea | 1114 | char *graph_name; |
a5f1c448 | 1115 | struct oid_array oids; |
c9905bea DS |
1116 | struct packed_commit_list commits; |
1117 | int num_extra_edges; | |
e8b63005 | 1118 | int num_generation_data_overflows; |
c9905bea DS |
1119 | unsigned long approx_nr_objects; |
1120 | struct progress *progress; | |
1121 | int progress_done; | |
1122 | uint64_t progress_cnt; | |
6c622f9f DS |
1123 | |
1124 | char *base_graph_name; | |
1125 | int num_commit_graphs_before; | |
1126 | int num_commit_graphs_after; | |
1127 | char **commit_graph_filenames_before; | |
1128 | char **commit_graph_filenames_after; | |
1129 | char **commit_graph_hash_after; | |
1130 | uint32_t new_num_commits_in_base; | |
1131 | struct commit_graph *new_base_graph; | |
1132 | ||
c9905bea | 1133 | unsigned append:1, |
6c622f9f | 1134 | report_progress:1, |
7c5c9b9c | 1135 | split:1, |
3d112755 | 1136 | changed_paths:1, |
e8b63005 | 1137 | order_by_pack:1, |
fde55b09 DS |
1138 | write_generation_data:1, |
1139 | trust_generation_numbers:1; | |
c2bc6e6a | 1140 | |
72a2bfca | 1141 | struct topo_level_slab *topo_levels; |
98bb7961 | 1142 | const struct commit_graph_opts *opts; |
f97b9325 | 1143 | size_t total_bloom_filter_data_size; |
98037f2b | 1144 | const struct bloom_filter_settings *bloom_settings; |
312cff52 TB |
1145 | |
1146 | int count_bloom_filter_computed; | |
1147 | int count_bloom_filter_not_computed; | |
59f0d507 | 1148 | int count_bloom_filter_trunc_empty; |
312cff52 | 1149 | int count_bloom_filter_trunc_large; |
c9905bea DS |
1150 | }; |
1151 | ||
9bab081d | 1152 | static int write_graph_chunk_fanout(struct hashfile *f, |
eb907191 | 1153 | void *data) |
08fd81c9 | 1154 | { |
eb907191 | 1155 | struct write_commit_graph_context *ctx = data; |
08fd81c9 | 1156 | int i, count = 0; |
c9905bea | 1157 | struct commit **list = ctx->commits.list; |
08fd81c9 DS |
1158 | |
1159 | /* | |
1160 | * Write the first-level table (the list is sorted, | |
1161 | * but we use a 256-entry lookup to be able to avoid | |
1162 | * having to do eight extra binary search iterations). | |
1163 | */ | |
1164 | for (i = 0; i < 256; i++) { | |
c9905bea | 1165 | while (count < ctx->commits.nr) { |
08fd81c9 DS |
1166 | if ((*list)->object.oid.hash[0] != i) |
1167 | break; | |
c9905bea | 1168 | display_progress(ctx->progress, ++ctx->progress_cnt); |
08fd81c9 DS |
1169 | count++; |
1170 | list++; | |
1171 | } | |
1172 | ||
1173 | hashwrite_be32(f, count); | |
1174 | } | |
9bab081d SG |
1175 | |
1176 | return 0; | |
08fd81c9 DS |
1177 | } |
1178 | ||
9bab081d | 1179 | static int write_graph_chunk_oids(struct hashfile *f, |
eb907191 | 1180 | void *data) |
08fd81c9 | 1181 | { |
eb907191 | 1182 | struct write_commit_graph_context *ctx = data; |
c9905bea | 1183 | struct commit **list = ctx->commits.list; |
08fd81c9 | 1184 | int count; |
c9905bea DS |
1185 | for (count = 0; count < ctx->commits.nr; count++, list++) { |
1186 | display_progress(ctx->progress, ++ctx->progress_cnt); | |
9bab081d | 1187 | hashwrite(f, (*list)->object.oid.hash, the_hash_algo->rawsz); |
53035c4f | 1188 | } |
9bab081d SG |
1189 | |
1190 | return 0; | |
08fd81c9 DS |
1191 | } |
1192 | ||
8380dcd7 | 1193 | static const struct object_id *commit_to_oid(size_t index, const void *table) |
08fd81c9 | 1194 | { |
8380dcd7 | 1195 | const struct commit * const *commits = table; |
45ee13b9 | 1196 | return &commits[index]->object.oid; |
08fd81c9 DS |
1197 | } |
1198 | ||
9bab081d | 1199 | static int write_graph_chunk_data(struct hashfile *f, |
eb907191 | 1200 | void *data) |
08fd81c9 | 1201 | { |
eb907191 | 1202 | struct write_commit_graph_context *ctx = data; |
c9905bea DS |
1203 | struct commit **list = ctx->commits.list; |
1204 | struct commit **last = ctx->commits.list + ctx->commits.nr; | |
08fd81c9 DS |
1205 | uint32_t num_extra_edges = 0; |
1206 | ||
1207 | while (list < last) { | |
1208 | struct commit_list *parent; | |
806278de | 1209 | struct object_id *tree; |
08fd81c9 DS |
1210 | int edge_value; |
1211 | uint32_t packedDate[2]; | |
c9905bea | 1212 | display_progress(ctx->progress, ++ctx->progress_cnt); |
08fd81c9 | 1213 | |
c4cc0831 | 1214 | if (repo_parse_commit_no_graph(ctx->r, *list)) |
16749b8d TB |
1215 | die(_("unable to parse commit %s"), |
1216 | oid_to_hex(&(*list)->object.oid)); | |
806278de | 1217 | tree = get_commit_tree_oid(*list); |
9bab081d | 1218 | hashwrite(f, tree->hash, the_hash_algo->rawsz); |
08fd81c9 DS |
1219 | |
1220 | parent = (*list)->parents; | |
1221 | ||
1222 | if (!parent) | |
1223 | edge_value = GRAPH_PARENT_NONE; | |
1224 | else { | |
45ee13b9 JK |
1225 | edge_value = oid_pos(&parent->item->object.oid, |
1226 | ctx->commits.list, | |
1227 | ctx->commits.nr, | |
1228 | commit_to_oid); | |
08fd81c9 | 1229 | |
6c622f9f DS |
1230 | if (edge_value >= 0) |
1231 | edge_value += ctx->new_num_commits_in_base; | |
8a6ac287 | 1232 | else if (ctx->new_base_graph) { |
6c622f9f | 1233 | uint32_t pos; |
809ea28f PS |
1234 | if (find_commit_pos_in_graph(parent->item, |
1235 | ctx->new_base_graph, | |
1236 | &pos)) | |
6c622f9f DS |
1237 | edge_value = pos; |
1238 | } | |
1239 | ||
08fd81c9 | 1240 | if (edge_value < 0) |
cce99cd8 DS |
1241 | BUG("missing parent %s for commit %s", |
1242 | oid_to_hex(&parent->item->object.oid), | |
1243 | oid_to_hex(&(*list)->object.oid)); | |
08fd81c9 DS |
1244 | } |
1245 | ||
1246 | hashwrite_be32(f, edge_value); | |
1247 | ||
1248 | if (parent) | |
1249 | parent = parent->next; | |
1250 | ||
1251 | if (!parent) | |
1252 | edge_value = GRAPH_PARENT_NONE; | |
1253 | else if (parent->next) | |
5af7417b | 1254 | edge_value = GRAPH_EXTRA_EDGES_NEEDED | num_extra_edges; |
08fd81c9 | 1255 | else { |
45ee13b9 JK |
1256 | edge_value = oid_pos(&parent->item->object.oid, |
1257 | ctx->commits.list, | |
1258 | ctx->commits.nr, | |
1259 | commit_to_oid); | |
6c622f9f DS |
1260 | |
1261 | if (edge_value >= 0) | |
1262 | edge_value += ctx->new_num_commits_in_base; | |
8a6ac287 | 1263 | else if (ctx->new_base_graph) { |
6c622f9f | 1264 | uint32_t pos; |
809ea28f PS |
1265 | if (find_commit_pos_in_graph(parent->item, |
1266 | ctx->new_base_graph, | |
1267 | &pos)) | |
6c622f9f DS |
1268 | edge_value = pos; |
1269 | } | |
1270 | ||
08fd81c9 | 1271 | if (edge_value < 0) |
cce99cd8 DS |
1272 | BUG("missing parent %s for commit %s", |
1273 | oid_to_hex(&parent->item->object.oid), | |
1274 | oid_to_hex(&(*list)->object.oid)); | |
08fd81c9 DS |
1275 | } |
1276 | ||
1277 | hashwrite_be32(f, edge_value); | |
1278 | ||
5af7417b | 1279 | if (edge_value & GRAPH_EXTRA_EDGES_NEEDED) { |
08fd81c9 DS |
1280 | do { |
1281 | num_extra_edges++; | |
1282 | parent = parent->next; | |
1283 | } while (parent); | |
1284 | } | |
1285 | ||
1286 | if (sizeof((*list)->date) > 4) | |
1287 | packedDate[0] = htonl(((*list)->date >> 32) & 0x3); | |
1288 | else | |
1289 | packedDate[0] = 0; | |
1290 | ||
72a2bfca | 1291 | packedDate[0] |= htonl(*topo_level_slab_at(ctx->topo_levels, *list) << 2); |
3258c663 | 1292 | |
08fd81c9 DS |
1293 | packedDate[1] = htonl((*list)->date); |
1294 | hashwrite(f, packedDate, 8); | |
1295 | ||
1296 | list++; | |
1297 | } | |
9bab081d SG |
1298 | |
1299 | return 0; | |
08fd81c9 DS |
1300 | } |
1301 | ||
e8b63005 | 1302 | static int write_graph_chunk_generation_data(struct hashfile *f, |
eb907191 | 1303 | void *data) |
e8b63005 | 1304 | { |
eb907191 | 1305 | struct write_commit_graph_context *ctx = data; |
e8b63005 AK |
1306 | int i, num_generation_data_overflows = 0; |
1307 | ||
1308 | for (i = 0; i < ctx->commits.nr; i++) { | |
1309 | struct commit *c = ctx->commits.list[i]; | |
90cb1c47 DS |
1310 | timestamp_t offset; |
1311 | repo_parse_commit(ctx->r, c); | |
1312 | offset = commit_graph_data_at(c)->generation - c->date; | |
e8b63005 AK |
1313 | display_progress(ctx->progress, ++ctx->progress_cnt); |
1314 | ||
1315 | if (offset > GENERATION_NUMBER_V2_OFFSET_MAX) { | |
1316 | offset = CORRECTED_COMMIT_DATE_OFFSET_OVERFLOW | num_generation_data_overflows; | |
1317 | num_generation_data_overflows++; | |
1318 | } | |
1319 | ||
1320 | hashwrite_be32(f, offset); | |
1321 | } | |
1322 | ||
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | static int write_graph_chunk_generation_data_overflow(struct hashfile *f, | |
eb907191 | 1327 | void *data) |
e8b63005 | 1328 | { |
eb907191 | 1329 | struct write_commit_graph_context *ctx = data; |
e8b63005 AK |
1330 | int i; |
1331 | for (i = 0; i < ctx->commits.nr; i++) { | |
1332 | struct commit *c = ctx->commits.list[i]; | |
1333 | timestamp_t offset = commit_graph_data_at(c)->generation - c->date; | |
1334 | display_progress(ctx->progress, ++ctx->progress_cnt); | |
1335 | ||
1336 | if (offset > GENERATION_NUMBER_V2_OFFSET_MAX) { | |
1337 | hashwrite_be32(f, offset >> 32); | |
1338 | hashwrite_be32(f, (uint32_t) offset); | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | return 0; | |
1343 | } | |
1344 | ||
9bab081d | 1345 | static int write_graph_chunk_extra_edges(struct hashfile *f, |
eb907191 | 1346 | void *data) |
08fd81c9 | 1347 | { |
eb907191 | 1348 | struct write_commit_graph_context *ctx = data; |
c9905bea DS |
1349 | struct commit **list = ctx->commits.list; |
1350 | struct commit **last = ctx->commits.list + ctx->commits.nr; | |
08fd81c9 DS |
1351 | struct commit_list *parent; |
1352 | ||
1353 | while (list < last) { | |
1354 | int num_parents = 0; | |
53035c4f | 1355 | |
c9905bea | 1356 | display_progress(ctx->progress, ++ctx->progress_cnt); |
53035c4f | 1357 | |
08fd81c9 DS |
1358 | for (parent = (*list)->parents; num_parents < 3 && parent; |
1359 | parent = parent->next) | |
1360 | num_parents++; | |
1361 | ||
1362 | if (num_parents <= 2) { | |
1363 | list++; | |
1364 | continue; | |
1365 | } | |
1366 | ||
1367 | /* Since num_parents > 2, this initializer is safe. */ | |
1368 | for (parent = (*list)->parents->next; parent; parent = parent->next) { | |
45ee13b9 JK |
1369 | int edge_value = oid_pos(&parent->item->object.oid, |
1370 | ctx->commits.list, | |
1371 | ctx->commits.nr, | |
1372 | commit_to_oid); | |
08fd81c9 | 1373 | |
6c622f9f DS |
1374 | if (edge_value >= 0) |
1375 | edge_value += ctx->new_num_commits_in_base; | |
8a6ac287 | 1376 | else if (ctx->new_base_graph) { |
6c622f9f | 1377 | uint32_t pos; |
809ea28f PS |
1378 | if (find_commit_pos_in_graph(parent->item, |
1379 | ctx->new_base_graph, | |
1380 | &pos)) | |
6c622f9f DS |
1381 | edge_value = pos; |
1382 | } | |
1383 | ||
08fd81c9 | 1384 | if (edge_value < 0) |
cce99cd8 DS |
1385 | BUG("missing parent %s for commit %s", |
1386 | oid_to_hex(&parent->item->object.oid), | |
1387 | oid_to_hex(&(*list)->object.oid)); | |
08fd81c9 DS |
1388 | else if (!parent->next) |
1389 | edge_value |= GRAPH_LAST_EDGE; | |
1390 | ||
1391 | hashwrite_be32(f, edge_value); | |
1392 | } | |
1393 | ||
1394 | list++; | |
1395 | } | |
9bab081d SG |
1396 | |
1397 | return 0; | |
08fd81c9 DS |
1398 | } |
1399 | ||
9bab081d | 1400 | static int write_graph_chunk_bloom_indexes(struct hashfile *f, |
eb907191 | 1401 | void *data) |
76ffbca7 | 1402 | { |
eb907191 | 1403 | struct write_commit_graph_context *ctx = data; |
76ffbca7 GS |
1404 | struct commit **list = ctx->commits.list; |
1405 | struct commit **last = ctx->commits.list + ctx->commits.nr; | |
1406 | uint32_t cur_pos = 0; | |
76ffbca7 GS |
1407 | |
1408 | while (list < last) { | |
312cff52 | 1409 | struct bloom_filter *filter = get_bloom_filter(ctx->r, *list); |
94919742 DS |
1410 | size_t len = filter ? filter->len : 0; |
1411 | cur_pos += len; | |
150cd3b6 | 1412 | display_progress(ctx->progress, ++ctx->progress_cnt); |
76ffbca7 GS |
1413 | hashwrite_be32(f, cur_pos); |
1414 | list++; | |
1415 | } | |
1416 | ||
9bab081d | 1417 | return 0; |
76ffbca7 GS |
1418 | } |
1419 | ||
0087a87b DS |
1420 | static void trace2_bloom_filter_settings(struct write_commit_graph_context *ctx) |
1421 | { | |
1422 | struct json_writer jw = JSON_WRITER_INIT; | |
1423 | ||
1424 | jw_object_begin(&jw, 0); | |
1425 | jw_object_intmax(&jw, "hash_version", ctx->bloom_settings->hash_version); | |
1426 | jw_object_intmax(&jw, "num_hashes", ctx->bloom_settings->num_hashes); | |
1427 | jw_object_intmax(&jw, "bits_per_entry", ctx->bloom_settings->bits_per_entry); | |
97ffa4fa | 1428 | jw_object_intmax(&jw, "max_changed_paths", ctx->bloom_settings->max_changed_paths); |
0087a87b DS |
1429 | jw_end(&jw); |
1430 | ||
1431 | trace2_data_json("bloom", ctx->r, "settings", &jw); | |
1432 | ||
1433 | jw_release(&jw); | |
76ffbca7 GS |
1434 | } |
1435 | ||
9bab081d | 1436 | static int write_graph_chunk_bloom_data(struct hashfile *f, |
eb907191 | 1437 | void *data) |
76ffbca7 | 1438 | { |
eb907191 | 1439 | struct write_commit_graph_context *ctx = data; |
76ffbca7 GS |
1440 | struct commit **list = ctx->commits.list; |
1441 | struct commit **last = ctx->commits.list + ctx->commits.nr; | |
76ffbca7 | 1442 | |
0087a87b DS |
1443 | trace2_bloom_filter_settings(ctx); |
1444 | ||
98037f2b DS |
1445 | hashwrite_be32(f, ctx->bloom_settings->hash_version); |
1446 | hashwrite_be32(f, ctx->bloom_settings->num_hashes); | |
1447 | hashwrite_be32(f, ctx->bloom_settings->bits_per_entry); | |
76ffbca7 GS |
1448 | |
1449 | while (list < last) { | |
312cff52 | 1450 | struct bloom_filter *filter = get_bloom_filter(ctx->r, *list); |
94919742 | 1451 | size_t len = filter ? filter->len : 0; |
94919742 | 1452 | |
150cd3b6 | 1453 | display_progress(ctx->progress, ++ctx->progress_cnt); |
94919742 DS |
1454 | if (len) |
1455 | hashwrite(f, filter->data, len * sizeof(unsigned char)); | |
76ffbca7 GS |
1456 | list++; |
1457 | } | |
1458 | ||
9bab081d | 1459 | return 0; |
76ffbca7 GS |
1460 | } |
1461 | ||
08fd81c9 DS |
1462 | static int add_packed_commits(const struct object_id *oid, |
1463 | struct packed_git *pack, | |
1464 | uint32_t pos, | |
1465 | void *data) | |
1466 | { | |
c9905bea | 1467 | struct write_commit_graph_context *ctx = (struct write_commit_graph_context*)data; |
08fd81c9 DS |
1468 | enum object_type type; |
1469 | off_t offset = nth_packed_object_offset(pack, pos); | |
1470 | struct object_info oi = OBJECT_INFO_INIT; | |
1471 | ||
c9905bea DS |
1472 | if (ctx->progress) |
1473 | display_progress(ctx->progress, ++ctx->progress_done); | |
7b0f2292 | 1474 | |
08fd81c9 | 1475 | oi.typep = &type; |
c9905bea | 1476 | if (packed_object_info(ctx->r, pack, offset, &oi) < 0) |
4f5b532d | 1477 | die(_("unable to get type of object %s"), oid_to_hex(oid)); |
08fd81c9 DS |
1478 | |
1479 | if (type != OBJ_COMMIT) | |
1480 | return 0; | |
1481 | ||
a5f1c448 | 1482 | oid_array_append(&ctx->oids, oid); |
d21ee7d1 JK |
1483 | set_commit_pos(ctx->r, oid); |
1484 | ||
08fd81c9 DS |
1485 | return 0; |
1486 | } | |
1487 | ||
c9905bea | 1488 | static void add_missing_parents(struct write_commit_graph_context *ctx, struct commit *commit) |
4f2542b4 DS |
1489 | { |
1490 | struct commit_list *parent; | |
1491 | for (parent = commit->parents; parent; parent = parent->next) { | |
cb99a34e | 1492 | if (!(parent->item->object.flags & REACHABLE)) { |
a5f1c448 | 1493 | oid_array_append(&ctx->oids, &parent->item->object.oid); |
cb99a34e | 1494 | parent->item->object.flags |= REACHABLE; |
4f2542b4 DS |
1495 | } |
1496 | } | |
1497 | } | |
1498 | ||
c9905bea | 1499 | static void close_reachable(struct write_commit_graph_context *ctx) |
4f2542b4 | 1500 | { |
49bbc57a | 1501 | int i; |
4f2542b4 | 1502 | struct commit *commit; |
98bb7961 TB |
1503 | enum commit_graph_split_flags flags = ctx->opts ? |
1504 | ctx->opts->split_flags : COMMIT_GRAPH_SPLIT_UNSPECIFIED; | |
4f2542b4 | 1505 | |
c9905bea DS |
1506 | if (ctx->report_progress) |
1507 | ctx->progress = start_delayed_progress( | |
1508 | _("Loading known commits in commit graph"), | |
1509 | ctx->oids.nr); | |
1510 | for (i = 0; i < ctx->oids.nr; i++) { | |
1511 | display_progress(ctx->progress, i + 1); | |
a5f1c448 | 1512 | commit = lookup_commit(ctx->r, &ctx->oids.oid[i]); |
4f2542b4 | 1513 | if (commit) |
cb99a34e | 1514 | commit->object.flags |= REACHABLE; |
4f2542b4 | 1515 | } |
c9905bea | 1516 | stop_progress(&ctx->progress); |
4f2542b4 DS |
1517 | |
1518 | /* | |
c9905bea | 1519 | * As this loop runs, ctx->oids.nr may grow, but not more |
4f2542b4 DS |
1520 | * than the number of missing commits in the reachable |
1521 | * closure. | |
1522 | */ | |
c9905bea DS |
1523 | if (ctx->report_progress) |
1524 | ctx->progress = start_delayed_progress( | |
1525 | _("Expanding reachable commits in commit graph"), | |
67fa6aac | 1526 | 0); |
c9905bea DS |
1527 | for (i = 0; i < ctx->oids.nr; i++) { |
1528 | display_progress(ctx->progress, i + 1); | |
a5f1c448 | 1529 | commit = lookup_commit(ctx->r, &ctx->oids.oid[i]); |
4f2542b4 | 1530 | |
6c622f9f DS |
1531 | if (!commit) |
1532 | continue; | |
1533 | if (ctx->split) { | |
c4cc0831 | 1534 | if ((!repo_parse_commit(ctx->r, commit) && |
c49c82aa | 1535 | commit_graph_position(commit) == COMMIT_NOT_FROM_GRAPH) || |
8a6ac287 | 1536 | flags == COMMIT_GRAPH_SPLIT_REPLACE) |
6c622f9f | 1537 | add_missing_parents(ctx, commit); |
c4cc0831 | 1538 | } else if (!repo_parse_commit_no_graph(ctx->r, commit)) |
c9905bea | 1539 | add_missing_parents(ctx, commit); |
4f2542b4 | 1540 | } |
c9905bea | 1541 | stop_progress(&ctx->progress); |
4f2542b4 | 1542 | |
c9905bea DS |
1543 | if (ctx->report_progress) |
1544 | ctx->progress = start_delayed_progress( | |
1545 | _("Clearing commit marks in commit graph"), | |
1546 | ctx->oids.nr); | |
1547 | for (i = 0; i < ctx->oids.nr; i++) { | |
1548 | display_progress(ctx->progress, i + 1); | |
a5f1c448 | 1549 | commit = lookup_commit(ctx->r, &ctx->oids.oid[i]); |
4f2542b4 DS |
1550 | |
1551 | if (commit) | |
cb99a34e | 1552 | commit->object.flags &= ~REACHABLE; |
4f2542b4 | 1553 | } |
c9905bea | 1554 | stop_progress(&ctx->progress); |
4f2542b4 DS |
1555 | } |
1556 | ||
368d19b0 DS |
1557 | struct compute_generation_info { |
1558 | struct repository *r; | |
1559 | struct packed_commit_list *commits; | |
1560 | struct progress *progress; | |
1561 | int progress_cnt; | |
1562 | ||
1563 | timestamp_t (*get_generation)(struct commit *c, void *data); | |
1564 | void (*set_generation)(struct commit *c, timestamp_t gen, void *data); | |
1565 | void *data; | |
1566 | }; | |
1567 | ||
1568 | static timestamp_t compute_generation_from_max(struct commit *c, | |
1569 | timestamp_t max_gen, | |
1570 | int generation_version) | |
1571 | { | |
1572 | switch (generation_version) { | |
1573 | case 1: /* topological levels */ | |
1574 | if (max_gen > GENERATION_NUMBER_V1_MAX - 1) | |
1575 | max_gen = GENERATION_NUMBER_V1_MAX - 1; | |
1576 | return max_gen + 1; | |
1577 | ||
1578 | case 2: /* corrected commit date */ | |
1579 | if (c->date && c->date > max_gen) | |
1580 | max_gen = c->date - 1; | |
1581 | return max_gen + 1; | |
1582 | ||
1583 | default: | |
1584 | BUG("attempting unimplemented version"); | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | static void compute_reachable_generation_numbers( | |
1589 | struct compute_generation_info *info, | |
1590 | int generation_version) | |
3258c663 DS |
1591 | { |
1592 | int i; | |
1593 | struct commit_list *list = NULL; | |
1594 | ||
368d19b0 DS |
1595 | for (i = 0; i < info->commits->nr; i++) { |
1596 | struct commit *c = info->commits->list[i]; | |
1597 | timestamp_t gen; | |
1598 | repo_parse_commit(info->r, c); | |
1599 | gen = info->get_generation(c, info->data); | |
1600 | display_progress(info->progress, info->progress_cnt + 1); | |
4844812b | 1601 | |
368d19b0 | 1602 | if (gen != GENERATION_NUMBER_ZERO && gen != GENERATION_NUMBER_INFINITY) |
3258c663 DS |
1603 | continue; |
1604 | ||
90cb1c47 | 1605 | commit_list_insert(c, &list); |
3258c663 DS |
1606 | while (list) { |
1607 | struct commit *current = list->item; | |
1608 | struct commit_list *parent; | |
1609 | int all_parents_computed = 1; | |
368d19b0 | 1610 | uint32_t max_gen = 0; |
3258c663 DS |
1611 | |
1612 | for (parent = current->parents; parent; parent = parent->next) { | |
368d19b0 DS |
1613 | repo_parse_commit(info->r, parent->item); |
1614 | gen = info->get_generation(parent->item, info->data); | |
4844812b | 1615 | |
368d19b0 | 1616 | if (gen == GENERATION_NUMBER_ZERO) { |
3258c663 DS |
1617 | all_parents_computed = 0; |
1618 | commit_list_insert(parent->item, &list); | |
1619 | break; | |
3258c663 | 1620 | } |
c1a09119 | 1621 | |
368d19b0 DS |
1622 | if (gen > max_gen) |
1623 | max_gen = gen; | |
3258c663 DS |
1624 | } |
1625 | ||
1626 | if (all_parents_computed) { | |
3258c663 | 1627 | pop_commit(&list); |
368d19b0 DS |
1628 | gen = compute_generation_from_max( |
1629 | current, max_gen, | |
1630 | generation_version); | |
1631 | info->set_generation(current, gen, info->data); | |
9c2c0a82 DS |
1632 | } |
1633 | } | |
1634 | } | |
368d19b0 DS |
1635 | } |
1636 | ||
1637 | static timestamp_t get_topo_level(struct commit *c, void *data) | |
1638 | { | |
1639 | struct write_commit_graph_context *ctx = data; | |
1640 | return *topo_level_slab_at(ctx->topo_levels, c); | |
1641 | } | |
1642 | ||
1643 | static void set_topo_level(struct commit *c, timestamp_t t, void *data) | |
1644 | { | |
1645 | struct write_commit_graph_context *ctx = data; | |
1646 | *topo_level_slab_at(ctx->topo_levels, c) = (uint32_t)t; | |
1647 | } | |
1648 | ||
1649 | static void compute_topological_levels(struct write_commit_graph_context *ctx) | |
1650 | { | |
1651 | struct compute_generation_info info = { | |
1652 | .r = ctx->r, | |
1653 | .commits = &ctx->commits, | |
1654 | .get_generation = get_topo_level, | |
1655 | .set_generation = set_topo_level, | |
1656 | .data = ctx, | |
1657 | }; | |
1658 | ||
1659 | if (ctx->report_progress) | |
1660 | info.progress = ctx->progress | |
1661 | = start_delayed_progress( | |
1662 | _("Computing commit graph topological levels"), | |
1663 | ctx->commits.nr); | |
1664 | ||
1665 | compute_reachable_generation_numbers(&info, 1); | |
1666 | ||
9c2c0a82 DS |
1667 | stop_progress(&ctx->progress); |
1668 | } | |
1669 | ||
e1cba404 JK |
1670 | static timestamp_t get_generation_from_graph_data(struct commit *c, |
1671 | void *data UNUSED) | |
80c928d9 DS |
1672 | { |
1673 | return commit_graph_data_at(c)->generation; | |
1674 | } | |
1675 | ||
e1cba404 JK |
1676 | static void set_generation_v2(struct commit *c, timestamp_t t, |
1677 | void *data UNUSED) | |
80c928d9 DS |
1678 | { |
1679 | struct commit_graph_data *g = commit_graph_data_at(c); | |
d3af1c19 | 1680 | g->generation = t; |
80c928d9 DS |
1681 | } |
1682 | ||
9c2c0a82 DS |
1683 | static void compute_generation_numbers(struct write_commit_graph_context *ctx) |
1684 | { | |
1685 | int i; | |
80c928d9 DS |
1686 | struct compute_generation_info info = { |
1687 | .r = ctx->r, | |
1688 | .commits = &ctx->commits, | |
1689 | .get_generation = get_generation_from_graph_data, | |
1690 | .set_generation = set_generation_v2, | |
80c928d9 | 1691 | }; |
9c2c0a82 DS |
1692 | |
1693 | if (ctx->report_progress) | |
80c928d9 DS |
1694 | info.progress = ctx->progress |
1695 | = start_delayed_progress( | |
9c2c0a82 DS |
1696 | _("Computing commit graph generation numbers"), |
1697 | ctx->commits.nr); | |
fde55b09 DS |
1698 | |
1699 | if (!ctx->trust_generation_numbers) { | |
1700 | for (i = 0; i < ctx->commits.nr; i++) { | |
1701 | struct commit *c = ctx->commits.list[i]; | |
1702 | repo_parse_commit(ctx->r, c); | |
1703 | commit_graph_data_at(c)->generation = GENERATION_NUMBER_ZERO; | |
1704 | } | |
1705 | } | |
1706 | ||
80c928d9 | 1707 | compute_reachable_generation_numbers(&info, 2); |
75979d94 DS |
1708 | |
1709 | for (i = 0; i < ctx->commits.nr; i++) { | |
1710 | struct commit *c = ctx->commits.list[i]; | |
1711 | timestamp_t offset = commit_graph_data_at(c)->generation - c->date; | |
1712 | if (offset > GENERATION_NUMBER_V2_OFFSET_MAX) | |
1713 | ctx->num_generation_data_overflows++; | |
1714 | } | |
c9905bea | 1715 | stop_progress(&ctx->progress); |
3258c663 DS |
1716 | } |
1717 | ||
c08645b3 | 1718 | static void set_generation_in_graph_data(struct commit *c, timestamp_t t, |
e1cba404 | 1719 | void *data UNUSED) |
c08645b3 TB |
1720 | { |
1721 | commit_graph_data_at(c)->generation = t; | |
1722 | } | |
1723 | ||
1724 | /* | |
1725 | * After this method, all commits reachable from those in the given | |
1726 | * list will have non-zero, non-infinite generation numbers. | |
1727 | */ | |
1728 | void ensure_generations_valid(struct repository *r, | |
1729 | struct commit **commits, size_t nr) | |
1730 | { | |
1731 | int generation_version = get_configured_generation_version(r); | |
1732 | struct packed_commit_list list = { | |
1733 | .list = commits, | |
1734 | .alloc = nr, | |
1735 | .nr = nr, | |
1736 | }; | |
1737 | struct compute_generation_info info = { | |
1738 | .r = r, | |
1739 | .commits = &list, | |
1740 | .get_generation = get_generation_from_graph_data, | |
1741 | .set_generation = set_generation_in_graph_data, | |
1742 | }; | |
1743 | ||
1744 | compute_reachable_generation_numbers(&info, generation_version); | |
1745 | } | |
1746 | ||
312cff52 TB |
1747 | static void trace2_bloom_filter_write_statistics(struct write_commit_graph_context *ctx) |
1748 | { | |
1749 | trace2_data_intmax("commit-graph", ctx->r, "filter-computed", | |
1750 | ctx->count_bloom_filter_computed); | |
1751 | trace2_data_intmax("commit-graph", ctx->r, "filter-not-computed", | |
1752 | ctx->count_bloom_filter_not_computed); | |
59f0d507 TB |
1753 | trace2_data_intmax("commit-graph", ctx->r, "filter-trunc-empty", |
1754 | ctx->count_bloom_filter_trunc_empty); | |
312cff52 TB |
1755 | trace2_data_intmax("commit-graph", ctx->r, "filter-trunc-large", |
1756 | ctx->count_bloom_filter_trunc_large); | |
1757 | } | |
1758 | ||
f97b9325 GS |
1759 | static void compute_bloom_filters(struct write_commit_graph_context *ctx) |
1760 | { | |
1761 | int i; | |
1762 | struct progress *progress = NULL; | |
d21ee7d1 | 1763 | struct commit **sorted_commits; |
809e0327 | 1764 | int max_new_filters; |
f97b9325 GS |
1765 | |
1766 | init_bloom_filters(); | |
1767 | ||
1768 | if (ctx->report_progress) | |
1769 | progress = start_delayed_progress( | |
1770 | _("Computing commit changed paths Bloom filters"), | |
1771 | ctx->commits.nr); | |
1772 | ||
6e578410 | 1773 | DUP_ARRAY(sorted_commits, ctx->commits.list, ctx->commits.nr); |
3d112755 GS |
1774 | |
1775 | if (ctx->order_by_pack) | |
1776 | QSORT(sorted_commits, ctx->commits.nr, commit_pos_cmp); | |
1777 | else | |
1778 | QSORT(sorted_commits, ctx->commits.nr, commit_gen_cmp); | |
d21ee7d1 | 1779 | |
809e0327 TB |
1780 | max_new_filters = ctx->opts && ctx->opts->max_new_filters >= 0 ? |
1781 | ctx->opts->max_new_filters : ctx->commits.nr; | |
1782 | ||
f97b9325 | 1783 | for (i = 0; i < ctx->commits.nr; i++) { |
312cff52 | 1784 | enum bloom_filter_computed computed = 0; |
d21ee7d1 | 1785 | struct commit *c = sorted_commits[i]; |
312cff52 TB |
1786 | struct bloom_filter *filter = get_or_compute_bloom_filter( |
1787 | ctx->r, | |
1788 | c, | |
809e0327 | 1789 | ctx->count_bloom_filter_computed < max_new_filters, |
9a7a9ed1 | 1790 | ctx->bloom_settings, |
312cff52 TB |
1791 | &computed); |
1792 | if (computed & BLOOM_COMPUTED) { | |
1793 | ctx->count_bloom_filter_computed++; | |
59f0d507 TB |
1794 | if (computed & BLOOM_TRUNC_EMPTY) |
1795 | ctx->count_bloom_filter_trunc_empty++; | |
312cff52 TB |
1796 | if (computed & BLOOM_TRUNC_LARGE) |
1797 | ctx->count_bloom_filter_trunc_large++; | |
1798 | } else if (computed & BLOOM_NOT_COMPUTED) | |
1799 | ctx->count_bloom_filter_not_computed++; | |
809e0327 TB |
1800 | ctx->total_bloom_filter_data_size += filter |
1801 | ? sizeof(unsigned char) * filter->len : 0; | |
f97b9325 GS |
1802 | display_progress(progress, i + 1); |
1803 | } | |
1804 | ||
312cff52 TB |
1805 | if (trace2_is_enabled()) |
1806 | trace2_bloom_filter_write_statistics(ctx); | |
1807 | ||
d21ee7d1 | 1808 | free(sorted_commits); |
f97b9325 GS |
1809 | stop_progress(&progress); |
1810 | } | |
1811 | ||
1fe10844 TB |
1812 | struct refs_cb_data { |
1813 | struct oidset *commits; | |
d335ce8f | 1814 | struct progress *progress; |
1fe10844 TB |
1815 | }; |
1816 | ||
5cf88fd8 | 1817 | static int add_ref_to_set(const char *refname UNUSED, |
6830c360 | 1818 | const struct object_id *oid, |
5cf88fd8 | 1819 | int flags UNUSED, void *cb_data) |
59fb8770 | 1820 | { |
630cd519 | 1821 | struct object_id peeled; |
1fe10844 | 1822 | struct refs_cb_data *data = (struct refs_cb_data *)cb_data; |
59fb8770 | 1823 | |
36a31792 | 1824 | if (!peel_iterated_oid(oid, &peeled)) |
630cd519 TB |
1825 | oid = &peeled; |
1826 | if (oid_object_info(the_repository, oid, NULL) == OBJ_COMMIT) | |
1827 | oidset_insert(data->commits, oid); | |
d335ce8f TB |
1828 | |
1829 | display_progress(data->progress, oidset_size(data->commits)); | |
59fb8770 | 1830 | |
59fb8770 DS |
1831 | return 0; |
1832 | } | |
1833 | ||
0bd52e27 | 1834 | int write_commit_graph_reachable(struct object_directory *odb, |
39d88318 | 1835 | enum commit_graph_write_flags flags, |
98bb7961 | 1836 | const struct commit_graph_opts *opts) |
59fb8770 | 1837 | { |
6830c360 | 1838 | struct oidset commits = OIDSET_INIT; |
1fe10844 | 1839 | struct refs_cb_data data; |
e103f727 | 1840 | int result; |
59fb8770 | 1841 | |
1fe10844 TB |
1842 | memset(&data, 0, sizeof(data)); |
1843 | data.commits = &commits; | |
d335ce8f TB |
1844 | if (flags & COMMIT_GRAPH_WRITE_PROGRESS) |
1845 | data.progress = start_delayed_progress( | |
1846 | _("Collecting referenced commits"), 0); | |
1fe10844 TB |
1847 | |
1848 | for_each_ref(add_ref_to_set, &data); | |
6f9d5f2f SG |
1849 | |
1850 | stop_progress(&data.progress); | |
1851 | ||
6830c360 | 1852 | result = write_commit_graph(odb, NULL, &commits, |
98bb7961 | 1853 | flags, opts); |
f4dbdfc4 | 1854 | |
6830c360 | 1855 | oidset_clear(&commits); |
e103f727 | 1856 | return result; |
59fb8770 DS |
1857 | } |
1858 | ||
ef5b83f2 | 1859 | static int fill_oids_from_packs(struct write_commit_graph_context *ctx, |
4a047908 | 1860 | const struct string_list *pack_indexes) |
08fd81c9 | 1861 | { |
ef5b83f2 | 1862 | uint32_t i; |
28944739 | 1863 | struct strbuf progress_title = STRBUF_INIT; |
ef5b83f2 DS |
1864 | struct strbuf packname = STRBUF_INIT; |
1865 | int dirlen; | |
51a94d8f | 1866 | int ret = 0; |
08fd81c9 | 1867 | |
0bd52e27 | 1868 | strbuf_addf(&packname, "%s/pack/", ctx->odb->path); |
ef5b83f2 DS |
1869 | dirlen = packname.len; |
1870 | if (ctx->report_progress) { | |
1871 | strbuf_addf(&progress_title, | |
99d60545 ÆAB |
1872 | Q_("Finding commits for commit graph in %"PRIuMAX" pack", |
1873 | "Finding commits for commit graph in %"PRIuMAX" packs", | |
ef5b83f2 | 1874 | pack_indexes->nr), |
99d60545 | 1875 | (uintmax_t)pack_indexes->nr); |
ef5b83f2 DS |
1876 | ctx->progress = start_delayed_progress(progress_title.buf, 0); |
1877 | ctx->progress_done = 0; | |
7547b95b | 1878 | } |
ef5b83f2 DS |
1879 | for (i = 0; i < pack_indexes->nr; i++) { |
1880 | struct packed_git *p; | |
1881 | strbuf_setlen(&packname, dirlen); | |
1882 | strbuf_addstr(&packname, pack_indexes->items[i].string); | |
1883 | p = add_packed_git(packname.buf, packname.len, 1); | |
1884 | if (!p) { | |
51a94d8f ÆAB |
1885 | ret = error(_("error adding pack %s"), packname.buf); |
1886 | goto cleanup; | |
7547b95b | 1887 | } |
ef5b83f2 | 1888 | if (open_pack_index(p)) { |
51a94d8f ÆAB |
1889 | ret = error(_("error opening index for %s"), packname.buf); |
1890 | goto cleanup; | |
ef5b83f2 DS |
1891 | } |
1892 | for_each_object_in_pack(p, add_packed_commits, ctx, | |
1893 | FOR_EACH_OBJECT_PACK_ORDER); | |
1894 | close_pack(p); | |
1895 | free(p); | |
7547b95b DS |
1896 | } |
1897 | ||
51a94d8f | 1898 | cleanup: |
ef5b83f2 | 1899 | stop_progress(&ctx->progress); |
0aa6bce7 | 1900 | strbuf_release(&progress_title); |
ef5b83f2 DS |
1901 | strbuf_release(&packname); |
1902 | ||
51a94d8f | 1903 | return ret; |
ef5b83f2 DS |
1904 | } |
1905 | ||
6830c360 TB |
1906 | static int fill_oids_from_commits(struct write_commit_graph_context *ctx, |
1907 | struct oidset *commits) | |
4c9efe85 | 1908 | { |
6830c360 TB |
1909 | struct oidset_iter iter; |
1910 | struct object_id *oid; | |
1911 | ||
1912 | if (!oidset_size(commits)) | |
1913 | return 0; | |
4c9efe85 | 1914 | |
6830c360 TB |
1915 | oidset_iter_init(commits, &iter); |
1916 | while ((oid = oidset_iter_next(&iter))) { | |
a5f1c448 | 1917 | oid_array_append(&ctx->oids, oid); |
3d5df01b | 1918 | } |
6830c360 | 1919 | |
7c5c9b9c | 1920 | return 0; |
4c9efe85 | 1921 | } |
3d5df01b | 1922 | |
b2c83060 DS |
1923 | static void fill_oids_from_all_packs(struct write_commit_graph_context *ctx) |
1924 | { | |
1925 | if (ctx->report_progress) | |
1926 | ctx->progress = start_delayed_progress( | |
1927 | _("Finding commits for commit graph among packed objects"), | |
1928 | ctx->approx_nr_objects); | |
1929 | for_each_packed_object(add_packed_commits, ctx, | |
1930 | FOR_EACH_OBJECT_PACK_ORDER); | |
1931 | if (ctx->progress_done < ctx->approx_nr_objects) | |
1932 | display_progress(ctx->progress, ctx->approx_nr_objects); | |
1933 | stop_progress(&ctx->progress); | |
1934 | } | |
049d51a2 | 1935 | |
f998d542 DS |
1936 | static void copy_oids_to_commits(struct write_commit_graph_context *ctx) |
1937 | { | |
1938 | uint32_t i; | |
98bb7961 TB |
1939 | enum commit_graph_split_flags flags = ctx->opts ? |
1940 | ctx->opts->split_flags : COMMIT_GRAPH_SPLIT_UNSPECIFIED; | |
08fd81c9 | 1941 | |
f998d542 DS |
1942 | ctx->num_extra_edges = 0; |
1943 | if (ctx->report_progress) | |
1944 | ctx->progress = start_delayed_progress( | |
890226cc | 1945 | _("Finding extra edges in commit graph"), |
f998d542 | 1946 | ctx->oids.nr); |
a5f1c448 JK |
1947 | oid_array_sort(&ctx->oids); |
1948 | for (i = 0; i < ctx->oids.nr; i = oid_array_next_unique(&ctx->oids, i)) { | |
689a146c RS |
1949 | unsigned int num_parents; |
1950 | ||
f998d542 | 1951 | display_progress(ctx->progress, i + 1); |
08fd81c9 | 1952 | |
6c622f9f | 1953 | ALLOC_GROW(ctx->commits.list, ctx->commits.nr + 1, ctx->commits.alloc); |
a5f1c448 | 1954 | ctx->commits.list[ctx->commits.nr] = lookup_commit(ctx->r, &ctx->oids.oid[i]); |
6c622f9f | 1955 | |
8a6ac287 | 1956 | if (ctx->split && flags != COMMIT_GRAPH_SPLIT_REPLACE && |
c49c82aa | 1957 | commit_graph_position(ctx->commits.list[ctx->commits.nr]) != COMMIT_NOT_FROM_GRAPH) |
6c622f9f DS |
1958 | continue; |
1959 | ||
8a6ac287 | 1960 | if (ctx->split && flags == COMMIT_GRAPH_SPLIT_REPLACE) |
c4cc0831 | 1961 | repo_parse_commit(ctx->r, ctx->commits.list[ctx->commits.nr]); |
8a6ac287 | 1962 | else |
c4cc0831 | 1963 | repo_parse_commit_no_graph(ctx->r, ctx->commits.list[ctx->commits.nr]); |
08fd81c9 | 1964 | |
689a146c | 1965 | num_parents = commit_list_count(ctx->commits.list[ctx->commits.nr]->parents); |
08fd81c9 | 1966 | if (num_parents > 2) |
f998d542 | 1967 | ctx->num_extra_edges += num_parents - 1; |
08fd81c9 | 1968 | |
f998d542 | 1969 | ctx->commits.nr++; |
08fd81c9 | 1970 | } |
f998d542 DS |
1971 | stop_progress(&ctx->progress); |
1972 | } | |
08fd81c9 | 1973 | |
6c622f9f DS |
1974 | static int write_graph_chunk_base_1(struct hashfile *f, |
1975 | struct commit_graph *g) | |
1976 | { | |
1977 | int num = 0; | |
1978 | ||
1979 | if (!g) | |
1980 | return 0; | |
1981 | ||
1982 | num = write_graph_chunk_base_1(f, g->base_graph); | |
1983 | hashwrite(f, g->oid.hash, the_hash_algo->rawsz); | |
1984 | return num + 1; | |
1985 | } | |
1986 | ||
1987 | static int write_graph_chunk_base(struct hashfile *f, | |
eb907191 | 1988 | void *data) |
6c622f9f | 1989 | { |
eb907191 | 1990 | struct write_commit_graph_context *ctx = data; |
6c622f9f DS |
1991 | int num = write_graph_chunk_base_1(f, ctx->new_base_graph); |
1992 | ||
1993 | if (num != ctx->num_commit_graphs_after - 1) { | |
1994 | error(_("failed to write correct number of base graph ids")); | |
1995 | return -1; | |
1996 | } | |
1997 | ||
1998 | return 0; | |
1999 | } | |
2000 | ||
238def57 | 2001 | static int write_commit_graph_file(struct write_commit_graph_context *ctx) |
08fd81c9 | 2002 | { |
238def57 | 2003 | uint32_t i; |
6c622f9f | 2004 | int fd; |
08fd81c9 | 2005 | struct hashfile *f; |
08fd81c9 | 2006 | struct lock_file lk = LOCK_INIT; |
c1665998 | 2007 | const unsigned hashsz = the_hash_algo->rawsz; |
28944739 | 2008 | struct strbuf progress_title = STRBUF_INIT; |
47410aa8 | 2009 | struct chunkfile *cf; |
72871b13 | 2010 | unsigned char file_hash[GIT_MAX_RAWSZ]; |
6c622f9f DS |
2011 | |
2012 | if (ctx->split) { | |
2013 | struct strbuf tmp_file = STRBUF_INIT; | |
2014 | ||
2015 | strbuf_addf(&tmp_file, | |
2016 | "%s/info/commit-graphs/tmp_graph_XXXXXX", | |
0bd52e27 | 2017 | ctx->odb->path); |
6c622f9f DS |
2018 | ctx->graph_name = strbuf_detach(&tmp_file, NULL); |
2019 | } else { | |
ad2dd5bb | 2020 | ctx->graph_name = get_commit_graph_filename(ctx->odb); |
6c622f9f | 2021 | } |
238def57 | 2022 | |
238def57 DS |
2023 | if (safe_create_leading_directories(ctx->graph_name)) { |
2024 | UNLEAK(ctx->graph_name); | |
2025 | error(_("unable to create leading directories of %s"), | |
2026 | ctx->graph_name); | |
2027 | return -1; | |
f4dbdfc4 | 2028 | } |
08fd81c9 | 2029 | |
6c622f9f | 2030 | if (ctx->split) { |
663b2b1b | 2031 | char *lock_name = get_commit_graph_chain_filename(ctx->odb); |
08fd81c9 | 2032 | |
45a4365c TB |
2033 | hold_lock_file_for_update_mode(&lk, lock_name, |
2034 | LOCK_DIE_ON_ERROR, 0444); | |
ef3fe214 | 2035 | free(lock_name); |
08fd81c9 | 2036 | |
6c622f9f DS |
2037 | fd = git_mkstemp_mode(ctx->graph_name, 0444); |
2038 | if (fd < 0) { | |
a2d57e22 | 2039 | error(_("unable to create temporary graph layer")); |
6c622f9f DS |
2040 | return -1; |
2041 | } | |
2042 | ||
f4d62847 TB |
2043 | if (adjust_shared_perm(ctx->graph_name)) { |
2044 | error(_("unable to adjust shared permissions for '%s'"), | |
2045 | ctx->graph_name); | |
2046 | return -1; | |
2047 | } | |
2048 | ||
6c622f9f DS |
2049 | f = hashfd(fd, ctx->graph_name); |
2050 | } else { | |
1f9becae TB |
2051 | hold_lock_file_for_update_mode(&lk, ctx->graph_name, |
2052 | LOCK_DIE_ON_ERROR, 0444); | |
a52cdce9 MÅ |
2053 | fd = get_lock_file_fd(&lk); |
2054 | f = hashfd(fd, get_lock_file_path(&lk)); | |
6c622f9f | 2055 | } |
08fd81c9 | 2056 | |
47410aa8 DS |
2057 | cf = init_chunkfile(f); |
2058 | ||
2059 | add_chunk(cf, GRAPH_CHUNKID_OIDFANOUT, GRAPH_FANOUT_SIZE, | |
2060 | write_graph_chunk_fanout); | |
48f3f8cf | 2061 | add_chunk(cf, GRAPH_CHUNKID_OIDLOOKUP, st_mult(hashsz, ctx->commits.nr), |
47410aa8 | 2062 | write_graph_chunk_oids); |
48f3f8cf | 2063 | add_chunk(cf, GRAPH_CHUNKID_DATA, st_mult(hashsz + 16, ctx->commits.nr), |
47410aa8 | 2064 | write_graph_chunk_data); |
e8b63005 | 2065 | |
47410aa8 DS |
2066 | if (ctx->write_generation_data) |
2067 | add_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA, | |
48f3f8cf | 2068 | st_mult(sizeof(uint32_t), ctx->commits.nr), |
47410aa8 DS |
2069 | write_graph_chunk_generation_data); |
2070 | if (ctx->num_generation_data_overflows) | |
2071 | add_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA_OVERFLOW, | |
48f3f8cf | 2072 | st_mult(sizeof(timestamp_t), ctx->num_generation_data_overflows), |
47410aa8 DS |
2073 | write_graph_chunk_generation_data_overflow); |
2074 | if (ctx->num_extra_edges) | |
2075 | add_chunk(cf, GRAPH_CHUNKID_EXTRAEDGES, | |
48f3f8cf | 2076 | st_mult(4, ctx->num_extra_edges), |
47410aa8 | 2077 | write_graph_chunk_extra_edges); |
76ffbca7 | 2078 | if (ctx->changed_paths) { |
47410aa8 | 2079 | add_chunk(cf, GRAPH_CHUNKID_BLOOMINDEXES, |
48f3f8cf | 2080 | st_mult(sizeof(uint32_t), ctx->commits.nr), |
47410aa8 DS |
2081 | write_graph_chunk_bloom_indexes); |
2082 | add_chunk(cf, GRAPH_CHUNKID_BLOOMDATA, | |
48f3f8cf TB |
2083 | st_add(sizeof(uint32_t) * 3, |
2084 | ctx->total_bloom_filter_data_size), | |
47410aa8 | 2085 | write_graph_chunk_bloom_data); |
76ffbca7 | 2086 | } |
47410aa8 DS |
2087 | if (ctx->num_commit_graphs_after > 1) |
2088 | add_chunk(cf, GRAPH_CHUNKID_BASE, | |
48f3f8cf | 2089 | st_mult(hashsz, ctx->num_commit_graphs_after - 1), |
47410aa8 | 2090 | write_graph_chunk_base); |
144354b0 DS |
2091 | |
2092 | hashwrite_be32(f, GRAPH_SIGNATURE); | |
2093 | ||
2094 | hashwrite_u8(f, GRAPH_VERSION); | |
d9fef9d9 | 2095 | hashwrite_u8(f, oid_version(the_hash_algo)); |
47410aa8 | 2096 | hashwrite_u8(f, get_num_chunks(cf)); |
6c622f9f | 2097 | hashwrite_u8(f, ctx->num_commit_graphs_after - 1); |
08fd81c9 | 2098 | |
238def57 | 2099 | if (ctx->report_progress) { |
28944739 ÆAB |
2100 | strbuf_addf(&progress_title, |
2101 | Q_("Writing out commit graph in %d pass", | |
2102 | "Writing out commit graph in %d passes", | |
c4ff24bb TB |
2103 | get_num_chunks(cf)), |
2104 | get_num_chunks(cf)); | |
238def57 | 2105 | ctx->progress = start_delayed_progress( |
28944739 | 2106 | progress_title.buf, |
48f3f8cf | 2107 | st_mult(get_num_chunks(cf), ctx->commits.nr)); |
28944739 | 2108 | } |
17e6275f | 2109 | |
47410aa8 | 2110 | write_chunkfile(cf, ctx); |
17e6275f | 2111 | |
238def57 | 2112 | stop_progress(&ctx->progress); |
28944739 | 2113 | strbuf_release(&progress_title); |
08fd81c9 | 2114 | |
6c622f9f DS |
2115 | if (ctx->split && ctx->base_graph_name && ctx->num_commit_graphs_after > 1) { |
2116 | char *new_base_hash = xstrdup(oid_to_hex(&ctx->new_base_graph->oid)); | |
ad2dd5bb | 2117 | char *new_base_name = get_split_graph_filename(ctx->new_base_graph->odb, new_base_hash); |
6c622f9f DS |
2118 | |
2119 | free(ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 2]); | |
2120 | free(ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 2]); | |
2121 | ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 2] = new_base_name; | |
2122 | ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 2] = new_base_hash; | |
2123 | } | |
2124 | ||
c3a3a964 | 2125 | close_commit_graph(ctx->r->objects); |
020406ea NS |
2126 | finalize_hashfile(f, file_hash, FSYNC_COMPONENT_COMMIT_GRAPH, |
2127 | CSUM_HASH_IN_STREAM | CSUM_FSYNC); | |
47410aa8 | 2128 | free_chunkfile(cf); |
6c622f9f DS |
2129 | |
2130 | if (ctx->split) { | |
2131 | FILE *chainf = fdopen_lock_file(&lk, "w"); | |
2132 | char *final_graph_name; | |
2133 | int result; | |
2134 | ||
2135 | close(fd); | |
2136 | ||
2137 | if (!chainf) { | |
2138 | error(_("unable to open commit-graph chain file")); | |
2139 | return -1; | |
2140 | } | |
2141 | ||
2142 | if (ctx->base_graph_name) { | |
8a6ac287 TB |
2143 | const char *dest; |
2144 | int idx = ctx->num_commit_graphs_after - 1; | |
2145 | if (ctx->num_commit_graphs_after > 1) | |
2146 | idx--; | |
2147 | ||
2148 | dest = ctx->commit_graph_filenames_after[idx]; | |
6c622f9f | 2149 | |
135a7123 DS |
2150 | if (strcmp(ctx->base_graph_name, dest)) { |
2151 | result = rename(ctx->base_graph_name, dest); | |
2152 | ||
2153 | if (result) { | |
2154 | error(_("failed to rename base commit-graph file")); | |
2155 | return -1; | |
2156 | } | |
6c622f9f DS |
2157 | } |
2158 | } else { | |
ad2dd5bb | 2159 | char *graph_name = get_commit_graph_filename(ctx->odb); |
6c622f9f | 2160 | unlink(graph_name); |
ef3fe214 | 2161 | free(graph_name); |
6c622f9f DS |
2162 | } |
2163 | ||
274bfa7f | 2164 | free(ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1]); |
72871b13 | 2165 | ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1] = xstrdup(hash_to_hex(file_hash)); |
ad2dd5bb | 2166 | final_graph_name = get_split_graph_filename(ctx->odb, |
6c622f9f | 2167 | ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1]); |
274bfa7f | 2168 | free(ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 1]); |
6c622f9f DS |
2169 | ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 1] = final_graph_name; |
2170 | ||
2171 | result = rename(ctx->graph_name, final_graph_name); | |
2172 | ||
2173 | for (i = 0; i < ctx->num_commit_graphs_after; i++) | |
a52cdce9 | 2174 | fprintf(get_lock_file_fp(&lk), "%s\n", ctx->commit_graph_hash_after[i]); |
6c622f9f DS |
2175 | |
2176 | if (result) { | |
2177 | error(_("failed to rename temporary commit-graph file")); | |
2178 | return -1; | |
2179 | } | |
2180 | } | |
2181 | ||
08fd81c9 DS |
2182 | commit_lock_file(&lk); |
2183 | ||
238def57 DS |
2184 | return 0; |
2185 | } | |
2186 | ||
1771be90 DS |
2187 | static void split_graph_merge_strategy(struct write_commit_graph_context *ctx) |
2188 | { | |
8da02ce6 AH |
2189 | struct commit_graph *g; |
2190 | uint32_t num_commits; | |
fdbde82f | 2191 | enum commit_graph_split_flags flags = COMMIT_GRAPH_SPLIT_UNSPECIFIED; |
1771be90 DS |
2192 | uint32_t i; |
2193 | ||
c2bc6e6a DS |
2194 | int max_commits = 0; |
2195 | int size_mult = 2; | |
2196 | ||
98bb7961 TB |
2197 | if (ctx->opts) { |
2198 | max_commits = ctx->opts->max_commits; | |
63020f17 | 2199 | |
98bb7961 TB |
2200 | if (ctx->opts->size_multiple) |
2201 | size_mult = ctx->opts->size_multiple; | |
fdbde82f | 2202 | |
98bb7961 | 2203 | flags = ctx->opts->split_flags; |
c2bc6e6a DS |
2204 | } |
2205 | ||
1771be90 | 2206 | g = ctx->r->objects->commit_graph; |
8da02ce6 | 2207 | num_commits = ctx->commits.nr; |
8a6ac287 TB |
2208 | if (flags == COMMIT_GRAPH_SPLIT_REPLACE) |
2209 | ctx->num_commit_graphs_after = 1; | |
2210 | else | |
2211 | ctx->num_commit_graphs_after = ctx->num_commit_graphs_before + 1; | |
1771be90 | 2212 | |
8a6ac287 TB |
2213 | if (flags != COMMIT_GRAPH_SPLIT_MERGE_PROHIBITED && |
2214 | flags != COMMIT_GRAPH_SPLIT_REPLACE) { | |
19565d09 | 2215 | while (g && (g->num_commits <= st_mult(size_mult, num_commits) || |
fdbde82f TB |
2216 | (max_commits && num_commits > max_commits))) { |
2217 | if (g->odb != ctx->odb) | |
2218 | break; | |
c523035c | 2219 | |
19565d09 TB |
2220 | if (unsigned_add_overflows(num_commits, g->num_commits)) |
2221 | die(_("cannot merge graphs with %"PRIuMAX", " | |
2222 | "%"PRIuMAX" commits"), | |
2223 | (uintmax_t)num_commits, | |
2224 | (uintmax_t)g->num_commits); | |
fdbde82f TB |
2225 | num_commits += g->num_commits; |
2226 | g = g->base_graph; | |
1771be90 | 2227 | |
fdbde82f TB |
2228 | ctx->num_commit_graphs_after--; |
2229 | } | |
1771be90 DS |
2230 | } |
2231 | ||
8a6ac287 TB |
2232 | if (flags != COMMIT_GRAPH_SPLIT_REPLACE) |
2233 | ctx->new_base_graph = g; | |
2234 | else if (ctx->num_commit_graphs_after != 1) | |
2235 | BUG("split_graph_merge_strategy: num_commit_graphs_after " | |
2236 | "should be 1 with --split=replace"); | |
1771be90 | 2237 | |
c523035c | 2238 | if (ctx->num_commit_graphs_after == 2) { |
ad2dd5bb | 2239 | char *old_graph_name = get_commit_graph_filename(g->odb); |
c523035c DS |
2240 | |
2241 | if (!strcmp(g->filename, old_graph_name) && | |
ad2dd5bb | 2242 | g->odb != ctx->odb) { |
c523035c DS |
2243 | ctx->num_commit_graphs_after = 1; |
2244 | ctx->new_base_graph = NULL; | |
2245 | } | |
2246 | ||
2247 | free(old_graph_name); | |
2248 | } | |
2249 | ||
b78a556a TB |
2250 | CALLOC_ARRAY(ctx->commit_graph_filenames_after, ctx->num_commit_graphs_after); |
2251 | CALLOC_ARRAY(ctx->commit_graph_hash_after, ctx->num_commit_graphs_after); | |
1771be90 DS |
2252 | |
2253 | for (i = 0; i < ctx->num_commit_graphs_after && | |
2254 | i < ctx->num_commit_graphs_before; i++) | |
2255 | ctx->commit_graph_filenames_after[i] = xstrdup(ctx->commit_graph_filenames_before[i]); | |
2256 | ||
2257 | i = ctx->num_commit_graphs_before - 1; | |
2258 | g = ctx->r->objects->commit_graph; | |
2259 | ||
2260 | while (g) { | |
2261 | if (i < ctx->num_commit_graphs_after) | |
2262 | ctx->commit_graph_hash_after[i] = xstrdup(oid_to_hex(&g->oid)); | |
2263 | ||
1fdc383c AK |
2264 | /* |
2265 | * If the topmost remaining layer has generation data chunk, the | |
2266 | * resultant layer also has generation data chunk. | |
2267 | */ | |
2268 | if (i == ctx->num_commit_graphs_after - 2) | |
2269 | ctx->write_generation_data = !!g->chunk_generation_data; | |
2270 | ||
1771be90 DS |
2271 | i--; |
2272 | g = g->base_graph; | |
2273 | } | |
2274 | } | |
2275 | ||
2276 | static void merge_commit_graph(struct write_commit_graph_context *ctx, | |
2277 | struct commit_graph *g) | |
2278 | { | |
2279 | uint32_t i; | |
2280 | uint32_t offset = g->num_commits_in_base; | |
2281 | ||
d76e0a74 TB |
2282 | if (unsigned_add_overflows(ctx->commits.nr, g->num_commits)) |
2283 | die(_("cannot merge graph %s, too many commits: %"PRIuMAX), | |
2284 | oid_to_hex(&g->oid), | |
2285 | (uintmax_t)st_add(ctx->commits.nr, g->num_commits)); | |
2286 | ||
1771be90 DS |
2287 | ALLOC_GROW(ctx->commits.list, ctx->commits.nr + g->num_commits, ctx->commits.alloc); |
2288 | ||
2289 | for (i = 0; i < g->num_commits; i++) { | |
2290 | struct object_id oid; | |
2291 | struct commit *result; | |
2292 | ||
2293 | display_progress(ctx->progress, i + 1); | |
2294 | ||
2295 | load_oid_from_graph(g, i + offset, &oid); | |
2296 | ||
2297 | /* only add commits if they still exist in the repo */ | |
2298 | result = lookup_commit_reference_gently(ctx->r, &oid, 1); | |
2299 | ||
2300 | if (result) { | |
2301 | ctx->commits.list[ctx->commits.nr] = result; | |
2302 | ctx->commits.nr++; | |
2303 | } | |
2304 | } | |
2305 | } | |
2306 | ||
2307 | static int commit_compare(const void *_a, const void *_b) | |
2308 | { | |
2309 | const struct commit *a = *(const struct commit **)_a; | |
2310 | const struct commit *b = *(const struct commit **)_b; | |
2311 | return oidcmp(&a->object.oid, &b->object.oid); | |
2312 | } | |
2313 | ||
2314 | static void sort_and_scan_merged_commits(struct write_commit_graph_context *ctx) | |
2315 | { | |
150f1157 | 2316 | uint32_t i, dedup_i = 0; |
1771be90 DS |
2317 | |
2318 | if (ctx->report_progress) | |
2319 | ctx->progress = start_delayed_progress( | |
2320 | _("Scanning merged commits"), | |
2321 | ctx->commits.nr); | |
2322 | ||
2323 | QSORT(ctx->commits.list, ctx->commits.nr, commit_compare); | |
2324 | ||
2325 | ctx->num_extra_edges = 0; | |
2326 | for (i = 0; i < ctx->commits.nr; i++) { | |
40112249 | 2327 | display_progress(ctx->progress, i + 1); |
1771be90 DS |
2328 | |
2329 | if (i && oideq(&ctx->commits.list[i - 1]->object.oid, | |
2330 | &ctx->commits.list[i]->object.oid)) { | |
150f1157 DS |
2331 | /* |
2332 | * Silently ignore duplicates. These were likely | |
2333 | * created due to a commit appearing in multiple | |
2334 | * layers of the chain, which is unexpected but | |
2335 | * not invalid. We should make sure there is a | |
2336 | * unique copy in the new layer. | |
2337 | */ | |
1771be90 | 2338 | } else { |
689a146c | 2339 | unsigned int num_parents; |
1771be90 | 2340 | |
150f1157 DS |
2341 | ctx->commits.list[dedup_i] = ctx->commits.list[i]; |
2342 | dedup_i++; | |
2343 | ||
689a146c | 2344 | num_parents = commit_list_count(ctx->commits.list[i]->parents); |
1771be90 | 2345 | if (num_parents > 2) |
a35bea40 | 2346 | ctx->num_extra_edges += num_parents - 1; |
1771be90 DS |
2347 | } |
2348 | } | |
2349 | ||
150f1157 DS |
2350 | ctx->commits.nr = dedup_i; |
2351 | ||
1771be90 DS |
2352 | stop_progress(&ctx->progress); |
2353 | } | |
2354 | ||
2355 | static void merge_commit_graphs(struct write_commit_graph_context *ctx) | |
2356 | { | |
2357 | struct commit_graph *g = ctx->r->objects->commit_graph; | |
2358 | uint32_t current_graph_number = ctx->num_commit_graphs_before; | |
1771be90 DS |
2359 | |
2360 | while (g && current_graph_number >= ctx->num_commit_graphs_after) { | |
2361 | current_graph_number--; | |
2362 | ||
d68ce906 RS |
2363 | if (ctx->report_progress) |
2364 | ctx->progress = start_delayed_progress(_("Merging commit-graph"), 0); | |
1771be90 DS |
2365 | |
2366 | merge_commit_graph(ctx, g); | |
2367 | stop_progress(&ctx->progress); | |
1771be90 DS |
2368 | |
2369 | g = g->base_graph; | |
2370 | } | |
2371 | ||
2372 | if (g) { | |
2373 | ctx->new_base_graph = g; | |
2374 | ctx->new_num_commits_in_base = g->num_commits + g->num_commits_in_base; | |
2375 | } | |
2376 | ||
2377 | if (ctx->new_base_graph) | |
2378 | ctx->base_graph_name = xstrdup(ctx->new_base_graph->filename); | |
2379 | ||
2380 | sort_and_scan_merged_commits(ctx); | |
2381 | } | |
2382 | ||
8d84097f DS |
2383 | static void mark_commit_graphs(struct write_commit_graph_context *ctx) |
2384 | { | |
2385 | uint32_t i; | |
2386 | time_t now = time(NULL); | |
2387 | ||
2388 | for (i = ctx->num_commit_graphs_after - 1; i < ctx->num_commit_graphs_before; i++) { | |
2389 | struct stat st; | |
2390 | struct utimbuf updated_time; | |
2391 | ||
7c898554 ÆAB |
2392 | if (stat(ctx->commit_graph_filenames_before[i], &st) < 0) |
2393 | continue; | |
8d84097f DS |
2394 | |
2395 | updated_time.actime = st.st_atime; | |
2396 | updated_time.modtime = now; | |
2397 | utime(ctx->commit_graph_filenames_before[i], &updated_time); | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | static void expire_commit_graphs(struct write_commit_graph_context *ctx) | |
2402 | { | |
2403 | struct strbuf path = STRBUF_INIT; | |
2404 | DIR *dir; | |
2405 | struct dirent *de; | |
2406 | size_t dirnamelen; | |
c2bc6e6a DS |
2407 | timestamp_t expire_time = time(NULL); |
2408 | ||
98bb7961 TB |
2409 | if (ctx->opts && ctx->opts->expire_time) |
2410 | expire_time = ctx->opts->expire_time; | |
ba41112a | 2411 | if (!ctx->split) { |
663b2b1b | 2412 | char *chain_file_name = get_commit_graph_chain_filename(ctx->odb); |
ba41112a DS |
2413 | unlink(chain_file_name); |
2414 | free(chain_file_name); | |
2415 | ctx->num_commit_graphs_after = 0; | |
2416 | } | |
8d84097f | 2417 | |
0bd52e27 | 2418 | strbuf_addstr(&path, ctx->odb->path); |
8d84097f DS |
2419 | strbuf_addstr(&path, "/info/commit-graphs"); |
2420 | dir = opendir(path.buf); | |
2421 | ||
0aa6bce7 RS |
2422 | if (!dir) |
2423 | goto out; | |
8d84097f DS |
2424 | |
2425 | strbuf_addch(&path, '/'); | |
2426 | dirnamelen = path.len; | |
2427 | while ((de = readdir(dir)) != NULL) { | |
2428 | struct stat st; | |
2429 | uint32_t i, found = 0; | |
2430 | ||
2431 | strbuf_setlen(&path, dirnamelen); | |
2432 | strbuf_addstr(&path, de->d_name); | |
2433 | ||
7c898554 ÆAB |
2434 | if (stat(path.buf, &st) < 0) |
2435 | continue; | |
8d84097f DS |
2436 | |
2437 | if (st.st_mtime > expire_time) | |
2438 | continue; | |
2439 | if (path.len < 6 || strcmp(path.buf + path.len - 6, ".graph")) | |
2440 | continue; | |
2441 | ||
2442 | for (i = 0; i < ctx->num_commit_graphs_after; i++) { | |
2443 | if (!strcmp(ctx->commit_graph_filenames_after[i], | |
2444 | path.buf)) { | |
2445 | found = 1; | |
2446 | break; | |
2447 | } | |
2448 | } | |
2449 | ||
2450 | if (!found) | |
2451 | unlink(path.buf); | |
8d84097f | 2452 | } |
0aa6bce7 RS |
2453 | |
2454 | out: | |
12f1ae53 ML |
2455 | if(dir) |
2456 | closedir(dir); | |
0aa6bce7 | 2457 | strbuf_release(&path); |
8d84097f DS |
2458 | } |
2459 | ||
0bd52e27 | 2460 | int write_commit_graph(struct object_directory *odb, |
4a047908 | 2461 | const struct string_list *const pack_indexes, |
6830c360 | 2462 | struct oidset *commits, |
39d88318 | 2463 | enum commit_graph_write_flags flags, |
98bb7961 | 2464 | const struct commit_graph_opts *opts) |
238def57 | 2465 | { |
c7ef8fe6 | 2466 | struct repository *r = the_repository; |
238def57 | 2467 | struct write_commit_graph_context *ctx; |
1cbdbf3b | 2468 | uint32_t i; |
e103f727 | 2469 | int res = 0; |
8a6ac287 | 2470 | int replace = 0; |
9a7a9ed1 | 2471 | struct bloom_filter_settings bloom_settings = DEFAULT_BLOOM_FILTER_SETTINGS; |
72a2bfca | 2472 | struct topo_level_slab topo_levels; |
08fd81c9 | 2473 | |
c7ef8fe6 DS |
2474 | prepare_repo_settings(r); |
2475 | if (!r->settings.core_commit_graph) { | |
85102ac7 DS |
2476 | warning(_("attempting to write a commit-graph, but 'core.commitGraph' is disabled")); |
2477 | return 0; | |
2478 | } | |
c7ef8fe6 | 2479 | if (!commit_graph_compatible(r)) |
e103f727 | 2480 | return 0; |
d6538246 | 2481 | |
ca56dadb | 2482 | CALLOC_ARRAY(ctx, 1); |
c7ef8fe6 | 2483 | ctx->r = r; |
0bd52e27 | 2484 | ctx->odb = odb; |
39d88318 SG |
2485 | ctx->append = flags & COMMIT_GRAPH_WRITE_APPEND ? 1 : 0; |
2486 | ctx->report_progress = flags & COMMIT_GRAPH_WRITE_PROGRESS ? 1 : 0; | |
2487 | ctx->split = flags & COMMIT_GRAPH_WRITE_SPLIT ? 1 : 0; | |
98bb7961 | 2488 | ctx->opts = opts; |
f97b9325 | 2489 | ctx->total_bloom_filter_data_size = 0; |
702110aa | 2490 | ctx->write_generation_data = (get_configured_generation_version(r) == 2); |
e8b63005 | 2491 | ctx->num_generation_data_overflows = 0; |
6c622f9f | 2492 | |
9a7a9ed1 TB |
2493 | bloom_settings.bits_per_entry = git_env_ulong("GIT_TEST_BLOOM_SETTINGS_BITS_PER_ENTRY", |
2494 | bloom_settings.bits_per_entry); | |
2495 | bloom_settings.num_hashes = git_env_ulong("GIT_TEST_BLOOM_SETTINGS_NUM_HASHES", | |
2496 | bloom_settings.num_hashes); | |
2497 | bloom_settings.max_changed_paths = git_env_ulong("GIT_TEST_BLOOM_SETTINGS_MAX_CHANGED_PATHS", | |
2498 | bloom_settings.max_changed_paths); | |
2499 | ctx->bloom_settings = &bloom_settings; | |
2500 | ||
72a2bfca AK |
2501 | init_topo_level_slab(&topo_levels); |
2502 | ctx->topo_levels = &topo_levels; | |
2503 | ||
bc50d6c9 | 2504 | prepare_commit_graph(ctx->r); |
72a2bfca AK |
2505 | if (ctx->r->objects->commit_graph) { |
2506 | struct commit_graph *g = ctx->r->objects->commit_graph; | |
2507 | ||
2508 | while (g) { | |
2509 | g->topo_levels = &topo_levels; | |
2510 | g = g->base_graph; | |
2511 | } | |
2512 | } | |
2513 | ||
0087a87b DS |
2514 | if (flags & COMMIT_GRAPH_WRITE_BLOOM_FILTERS) |
2515 | ctx->changed_paths = 1; | |
2516 | if (!(flags & COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS)) { | |
2517 | struct commit_graph *g; | |
0087a87b DS |
2518 | |
2519 | g = ctx->r->objects->commit_graph; | |
2520 | ||
2521 | /* We have changed-paths already. Keep them in the next graph */ | |
2522 | if (g && g->chunk_bloom_data) { | |
2523 | ctx->changed_paths = 1; | |
2524 | ctx->bloom_settings = g->bloom_filter_settings; | |
2525 | } | |
2526 | } | |
2527 | ||
6c622f9f | 2528 | if (ctx->split) { |
bc50d6c9 | 2529 | struct commit_graph *g = ctx->r->objects->commit_graph; |
6c622f9f DS |
2530 | |
2531 | while (g) { | |
2532 | ctx->num_commit_graphs_before++; | |
2533 | g = g->base_graph; | |
2534 | } | |
2535 | ||
2536 | if (ctx->num_commit_graphs_before) { | |
2537 | ALLOC_ARRAY(ctx->commit_graph_filenames_before, ctx->num_commit_graphs_before); | |
2538 | i = ctx->num_commit_graphs_before; | |
2539 | g = ctx->r->objects->commit_graph; | |
2540 | ||
2541 | while (g) { | |
2542 | ctx->commit_graph_filenames_before[--i] = xstrdup(g->filename); | |
2543 | g = g->base_graph; | |
2544 | } | |
2545 | } | |
8a6ac287 | 2546 | |
98bb7961 TB |
2547 | if (ctx->opts) |
2548 | replace = ctx->opts->split_flags & COMMIT_GRAPH_SPLIT_REPLACE; | |
6c622f9f | 2549 | } |
c9905bea | 2550 | |
afe27c88 | 2551 | ctx->approx_nr_objects = repo_approximate_object_count(the_repository); |
c9905bea | 2552 | |
c9905bea DS |
2553 | if (ctx->append && ctx->r->objects->commit_graph) { |
2554 | struct commit_graph *g = ctx->r->objects->commit_graph; | |
2555 | for (i = 0; i < g->num_commits; i++) { | |
a5f1c448 | 2556 | struct object_id oid; |
588af1bf | 2557 | oidread(&oid, g->chunk_oid_lookup + st_mult(g->hash_len, i)); |
a5f1c448 | 2558 | oid_array_append(&ctx->oids, &oid); |
7547b95b DS |
2559 | } |
2560 | } | |
2561 | ||
049d51a2 | 2562 | if (pack_indexes) { |
3d112755 | 2563 | ctx->order_by_pack = 1; |
ef5b83f2 DS |
2564 | if ((res = fill_oids_from_packs(ctx, pack_indexes))) |
2565 | goto cleanup; | |
3d5df01b DS |
2566 | } |
2567 | ||
6830c360 TB |
2568 | if (commits) { |
2569 | if ((res = fill_oids_from_commits(ctx, commits))) | |
7c5c9b9c SG |
2570 | goto cleanup; |
2571 | } | |
3d5df01b | 2572 | |
9b6606f4 | 2573 | if (!pack_indexes && !commits) { |
3d112755 | 2574 | ctx->order_by_pack = 1; |
b2c83060 | 2575 | fill_oids_from_all_packs(ctx); |
3d112755 | 2576 | } |
049d51a2 | 2577 | |
c9905bea | 2578 | close_reachable(ctx); |
08fd81c9 | 2579 | |
f998d542 | 2580 | copy_oids_to_commits(ctx); |
08fd81c9 | 2581 | |
c9905bea | 2582 | if (ctx->commits.nr >= GRAPH_EDGE_LAST_MASK) { |
e103f727 DS |
2583 | error(_("too many commits to write graph")); |
2584 | res = -1; | |
2585 | goto cleanup; | |
2586 | } | |
08fd81c9 | 2587 | |
8a6ac287 | 2588 | if (!ctx->commits.nr && !replace) |
6c622f9f DS |
2589 | goto cleanup; |
2590 | ||
1771be90 DS |
2591 | if (ctx->split) { |
2592 | split_graph_merge_strategy(ctx); | |
2593 | ||
8a6ac287 TB |
2594 | if (!replace) |
2595 | merge_commit_graphs(ctx); | |
1771be90 | 2596 | } else |
6c622f9f DS |
2597 | ctx->num_commit_graphs_after = 1; |
2598 | ||
fde55b09 | 2599 | ctx->trust_generation_numbers = validate_mixed_generation_chain(ctx->r->objects->commit_graph); |
1fdc383c | 2600 | |
9c2c0a82 DS |
2601 | compute_topological_levels(ctx); |
2602 | if (ctx->write_generation_data) | |
2603 | compute_generation_numbers(ctx); | |
08fd81c9 | 2604 | |
f97b9325 GS |
2605 | if (ctx->changed_paths) |
2606 | compute_bloom_filters(ctx); | |
2607 | ||
238def57 | 2608 | res = write_commit_graph_file(ctx); |
08fd81c9 | 2609 | |
ba41112a | 2610 | if (ctx->split) |
8d84097f | 2611 | mark_commit_graphs(ctx); |
ba41112a DS |
2612 | |
2613 | expire_commit_graphs(ctx); | |
8d84097f | 2614 | |
e103f727 | 2615 | cleanup: |
238def57 | 2616 | free(ctx->graph_name); |
d9c84c6d | 2617 | free(ctx->base_graph_name); |
c9905bea | 2618 | free(ctx->commits.list); |
a5f1c448 | 2619 | oid_array_clear(&ctx->oids); |
bf4bb9f9 | 2620 | clear_topo_level_slab(&topo_levels); |
6c622f9f | 2621 | |
4efa9308 PS |
2622 | for (i = 0; i < ctx->num_commit_graphs_before; i++) |
2623 | free(ctx->commit_graph_filenames_before[i]); | |
2624 | free(ctx->commit_graph_filenames_before); | |
6c622f9f | 2625 | |
4efa9308 PS |
2626 | for (i = 0; i < ctx->num_commit_graphs_after; i++) { |
2627 | free(ctx->commit_graph_filenames_after[i]); | |
2628 | free(ctx->commit_graph_hash_after[i]); | |
6c622f9f | 2629 | } |
4efa9308 PS |
2630 | free(ctx->commit_graph_filenames_after); |
2631 | free(ctx->commit_graph_hash_after); | |
6c622f9f | 2632 | |
c9905bea | 2633 | free(ctx); |
e103f727 DS |
2634 | |
2635 | return res; | |
08fd81c9 | 2636 | } |
283e68c7 | 2637 | |
41df0e30 | 2638 | #define VERIFY_COMMIT_GRAPH_ERROR_HASH 2 |
283e68c7 DS |
2639 | static int verify_commit_graph_error; |
2640 | ||
48ca53ca | 2641 | __attribute__((format (printf, 1, 2))) |
283e68c7 DS |
2642 | static void graph_report(const char *fmt, ...) |
2643 | { | |
2644 | va_list ap; | |
2645 | ||
2646 | verify_commit_graph_error = 1; | |
2647 | va_start(ap, fmt); | |
2648 | vfprintf(stderr, fmt, ap); | |
2649 | fprintf(stderr, "\n"); | |
2650 | va_end(ap); | |
2651 | } | |
2652 | ||
15316a47 TB |
2653 | static int commit_graph_checksum_valid(struct commit_graph *g) |
2654 | { | |
2655 | return hashfile_checksum_valid(g->data, g->data_len); | |
2656 | } | |
2657 | ||
eb319d67 TB |
2658 | static int verify_one_commit_graph(struct repository *r, |
2659 | struct commit_graph *g, | |
9281cd07 TB |
2660 | struct progress *progress, |
2661 | uint64_t *seen) | |
283e68c7 | 2662 | { |
9bda8467 | 2663 | uint32_t i, cur_fanout_pos = 0; |
72871b13 | 2664 | struct object_id prev_oid, cur_oid; |
db6044d7 TB |
2665 | struct commit *seen_gen_zero = NULL; |
2666 | struct commit *seen_gen_non_zero = NULL; | |
283e68c7 | 2667 | |
15316a47 | 2668 | if (!commit_graph_checksum_valid(g)) { |
41df0e30 DS |
2669 | graph_report(_("the commit-graph file has incorrect checksum and is likely corrupt")); |
2670 | verify_commit_graph_error = VERIFY_COMMIT_GRAPH_ERROR_HASH; | |
2671 | } | |
2672 | ||
9bda8467 | 2673 | for (i = 0; i < g->num_commits; i++) { |
2e3c0737 DS |
2674 | struct commit *graph_commit; |
2675 | ||
9a25cad7 | 2676 | oidread(&cur_oid, g->chunk_oid_lookup + st_mult(g->hash_len, i)); |
9bda8467 DS |
2677 | |
2678 | if (i && oidcmp(&prev_oid, &cur_oid) >= 0) | |
93b4405f | 2679 | graph_report(_("commit-graph has incorrect OID order: %s then %s"), |
9bda8467 DS |
2680 | oid_to_hex(&prev_oid), |
2681 | oid_to_hex(&cur_oid)); | |
2682 | ||
2683 | oidcpy(&prev_oid, &cur_oid); | |
2684 | ||
2685 | while (cur_oid.hash[0] > cur_fanout_pos) { | |
2686 | uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos); | |
2687 | ||
2688 | if (i != fanout_value) | |
93b4405f | 2689 | graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"), |
9bda8467 DS |
2690 | cur_fanout_pos, fanout_value, i); |
2691 | cur_fanout_pos++; | |
2692 | } | |
2e3c0737 | 2693 | |
82952964 | 2694 | graph_commit = lookup_commit(r, &cur_oid); |
4f542b7a | 2695 | if (!parse_commit_in_graph_one(r, g, graph_commit)) |
93b4405f | 2696 | graph_report(_("failed to parse commit %s from commit-graph"), |
2e3c0737 | 2697 | oid_to_hex(&cur_oid)); |
9bda8467 DS |
2698 | } |
2699 | ||
2700 | while (cur_fanout_pos < 256) { | |
2701 | uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos); | |
2702 | ||
2703 | if (g->num_commits != fanout_value) | |
93b4405f | 2704 | graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"), |
9bda8467 DS |
2705 | cur_fanout_pos, fanout_value, i); |
2706 | ||
2707 | cur_fanout_pos++; | |
2708 | } | |
2709 | ||
41df0e30 | 2710 | if (verify_commit_graph_error & ~VERIFY_COMMIT_GRAPH_ERROR_HASH) |
96af91d4 DS |
2711 | return verify_commit_graph_error; |
2712 | ||
2713 | for (i = 0; i < g->num_commits; i++) { | |
2e3c0737 | 2714 | struct commit *graph_commit, *odb_commit; |
53614b13 | 2715 | struct commit_list *graph_parents, *odb_parents; |
d7f92784 AK |
2716 | timestamp_t max_generation = 0; |
2717 | timestamp_t generation; | |
96af91d4 | 2718 | |
9281cd07 | 2719 | display_progress(progress, ++(*seen)); |
9a25cad7 | 2720 | oidread(&cur_oid, g->chunk_oid_lookup + st_mult(g->hash_len, i)); |
96af91d4 | 2721 | |
82952964 | 2722 | graph_commit = lookup_commit(r, &cur_oid); |
a378509e | 2723 | odb_commit = (struct commit *)create_object(r, &cur_oid, alloc_commit_node(r)); |
4a93b899 | 2724 | if (repo_parse_commit_internal(r, odb_commit, 0, 0)) { |
93b4405f | 2725 | graph_report(_("failed to parse commit %s from object database for commit-graph"), |
96af91d4 DS |
2726 | oid_to_hex(&cur_oid)); |
2727 | continue; | |
2728 | } | |
2e3c0737 | 2729 | |
4f542b7a | 2730 | if (!oideq(&get_commit_tree_in_graph_one(r, g, graph_commit)->object.oid, |
2e3c0737 | 2731 | get_commit_tree_oid(odb_commit))) |
93b4405f | 2732 | graph_report(_("root tree OID for commit %s in commit-graph is %s != %s"), |
2e3c0737 DS |
2733 | oid_to_hex(&cur_oid), |
2734 | oid_to_hex(get_commit_tree_oid(graph_commit)), | |
2735 | oid_to_hex(get_commit_tree_oid(odb_commit))); | |
53614b13 DS |
2736 | |
2737 | graph_parents = graph_commit->parents; | |
2738 | odb_parents = odb_commit->parents; | |
2739 | ||
2740 | while (graph_parents) { | |
afe8a907 | 2741 | if (!odb_parents) { |
93b4405f | 2742 | graph_report(_("commit-graph parent list for commit %s is too long"), |
53614b13 DS |
2743 | oid_to_hex(&cur_oid)); |
2744 | break; | |
2745 | } | |
2746 | ||
3da4b609 DS |
2747 | /* parse parent in case it is in a base graph */ |
2748 | parse_commit_in_graph_one(r, g, graph_parents->item); | |
2749 | ||
9001dc2a | 2750 | if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid)) |
93b4405f | 2751 | graph_report(_("commit-graph parent for %s is %s != %s"), |
53614b13 DS |
2752 | oid_to_hex(&cur_oid), |
2753 | oid_to_hex(&graph_parents->item->object.oid), | |
2754 | oid_to_hex(&odb_parents->item->object.oid)); | |
2755 | ||
868c9911 | 2756 | generation = commit_graph_generation_from_graph(graph_parents->item); |
c752ad09 AK |
2757 | if (generation > max_generation) |
2758 | max_generation = generation; | |
1373e547 | 2759 | |
53614b13 DS |
2760 | graph_parents = graph_parents->next; |
2761 | odb_parents = odb_parents->next; | |
2762 | } | |
2763 | ||
afe8a907 | 2764 | if (odb_parents) |
93b4405f | 2765 | graph_report(_("commit-graph parent list for commit %s terminates early"), |
53614b13 | 2766 | oid_to_hex(&cur_oid)); |
1373e547 | 2767 | |
db6044d7 TB |
2768 | if (commit_graph_generation_from_graph(graph_commit)) |
2769 | seen_gen_non_zero = graph_commit; | |
2770 | else | |
2771 | seen_gen_zero = graph_commit; | |
1373e547 | 2772 | |
db6044d7 | 2773 | if (seen_gen_zero) |
1373e547 DS |
2774 | continue; |
2775 | ||
2776 | /* | |
e8b63005 AK |
2777 | * If we are using topological level and one of our parents has |
2778 | * generation GENERATION_NUMBER_V1_MAX, then our generation is | |
2779 | * also GENERATION_NUMBER_V1_MAX. Decrement to avoid extra logic | |
2780 | * in the following condition. | |
1373e547 | 2781 | */ |
1fdc383c | 2782 | if (!g->read_generation_data && max_generation == GENERATION_NUMBER_V1_MAX) |
1373e547 DS |
2783 | max_generation--; |
2784 | ||
c752ad09 | 2785 | generation = commit_graph_generation(graph_commit); |
e8b63005 AK |
2786 | if (generation < max_generation + 1) |
2787 | graph_report(_("commit-graph generation for commit %s is %"PRItime" < %"PRItime), | |
1373e547 | 2788 | oid_to_hex(&cur_oid), |
c752ad09 | 2789 | generation, |
1373e547 | 2790 | max_generation + 1); |
88968ebf DS |
2791 | |
2792 | if (graph_commit->date != odb_commit->date) | |
93b4405f | 2793 | graph_report(_("commit date for commit %s in commit-graph is %"PRItime" != %"PRItime), |
88968ebf DS |
2794 | oid_to_hex(&cur_oid), |
2795 | graph_commit->date, | |
2796 | odb_commit->date); | |
96af91d4 | 2797 | } |
db6044d7 TB |
2798 | |
2799 | if (seen_gen_zero && seen_gen_non_zero) | |
2800 | graph_report(_("commit-graph has both zero and non-zero " | |
2801 | "generations (e.g., commits '%s' and '%s')"), | |
2802 | oid_to_hex(&seen_gen_zero->object.oid), | |
2803 | oid_to_hex(&seen_gen_non_zero->object.oid)); | |
96af91d4 | 2804 | |
eb319d67 TB |
2805 | return verify_commit_graph_error; |
2806 | } | |
2807 | ||
2808 | int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags) | |
2809 | { | |
9281cd07 | 2810 | struct progress *progress = NULL; |
eb319d67 | 2811 | int local_error = 0; |
9281cd07 | 2812 | uint64_t seen = 0; |
eb319d67 TB |
2813 | |
2814 | if (!g) { | |
2815 | graph_report("no commit-graph file loaded"); | |
2816 | return 1; | |
2817 | } | |
2818 | ||
9281cd07 TB |
2819 | if (flags & COMMIT_GRAPH_WRITE_PROGRESS) { |
2820 | uint64_t total = g->num_commits; | |
2821 | if (!(flags & COMMIT_GRAPH_VERIFY_SHALLOW)) | |
2822 | total += g->num_commits_in_base; | |
2823 | ||
2824 | progress = start_progress(_("Verifying commits in commit graph"), | |
2825 | total); | |
2826 | } | |
7248857b | 2827 | |
9281cd07 TB |
2828 | for (; g; g = g->base_graph) { |
2829 | local_error |= verify_one_commit_graph(r, g, progress, &seen); | |
f5facaa4 TB |
2830 | if (flags & COMMIT_GRAPH_VERIFY_SHALLOW) |
2831 | break; | |
2832 | } | |
3da4b609 | 2833 | |
9281cd07 | 2834 | stop_progress(&progress); |
3da4b609 DS |
2835 | |
2836 | return local_error; | |
283e68c7 | 2837 | } |
c3756d5b JT |
2838 | |
2839 | void free_commit_graph(struct commit_graph *g) | |
2840 | { | |
09a75abb JK |
2841 | while (g) { |
2842 | struct commit_graph *next = g->base_graph; | |
2843 | ||
2844 | if (g->data) | |
2845 | munmap((void *)g->data, g->data_len); | |
2846 | free(g->filename); | |
2847 | free(g->bloom_filter_settings); | |
2848 | free(g); | |
2849 | ||
2850 | g = next; | |
c3756d5b | 2851 | } |
c3756d5b | 2852 | } |
6abada18 JK |
2853 | |
2854 | void disable_commit_graph(struct repository *r) | |
2855 | { | |
2856 | r->commit_graph_disabled = 1; | |
2857 | } |