From: Junio C Hamano Date: Tue, 5 Feb 2019 22:26:14 +0000 (-0800) Subject: Merge branch 'ab/commit-graph-write-progress' X-Git-Tag: v2.21.0-rc0~44 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/e5eac5735609722a07401a279a1508ace22fc9bc?ds=inline;hp=-c Merge branch 'ab/commit-graph-write-progress' The codepath to show progress meter while writing out commit-graph file has been improved. * ab/commit-graph-write-progress: commit-graph write: emit a percentage for all progress commit-graph write: add itermediate progress commit-graph write: remove empty line for readability commit-graph write: add more descriptive progress output commit-graph write: show progress for object search commit-graph write: more descriptive "writing out" output commit-graph write: add "Writing out" progress output commit-graph: don't call write_graph_chunk_extra_edges() unnecessarily commit-graph: rename "large edges" to "extra edges" --- e5eac5735609722a07401a279a1508ace22fc9bc diff --combined commit-graph.c index 8d52727def,017225ccea..47e9be0a3a --- a/commit-graph.c +++ b/commit-graph.c @@@ -21,14 -21,20 +21,14 @@@ #define GRAPH_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */ #define GRAPH_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */ #define GRAPH_CHUNKID_DATA 0x43444154 /* "CDAT" */ - #define GRAPH_CHUNKID_LARGEEDGES 0x45444745 /* "EDGE" */ + #define GRAPH_CHUNKID_EXTRAEDGES 0x45444745 /* "EDGE" */ -#define GRAPH_DATA_WIDTH 36 +#define GRAPH_DATA_WIDTH (the_hash_algo->rawsz + 16) #define GRAPH_VERSION_1 0x1 #define GRAPH_VERSION GRAPH_VERSION_1 - #define GRAPH_OCTOPUS_EDGES_NEEDED 0x80000000 -#define GRAPH_OID_VERSION_SHA1 1 -#define GRAPH_OID_LEN_SHA1 GIT_SHA1_RAWSZ -#define GRAPH_OID_VERSION GRAPH_OID_VERSION_SHA1 -#define GRAPH_OID_LEN GRAPH_OID_LEN_SHA1 - + #define GRAPH_EXTRA_EDGES_NEEDED 0x80000000 -#define GRAPH_PARENT_MISSING 0x7fffffff #define GRAPH_EDGE_LAST_MASK 0x7fffffff #define GRAPH_PARENT_NONE 0x70000000 @@@ -38,18 -44,13 +38,18 @@@ #define GRAPH_FANOUT_SIZE (4 * 256) #define GRAPH_CHUNKLOOKUP_WIDTH 12 #define GRAPH_MIN_SIZE (GRAPH_HEADER_SIZE + 4 * GRAPH_CHUNKLOOKUP_WIDTH \ - + GRAPH_FANOUT_SIZE + GRAPH_OID_LEN) + + GRAPH_FANOUT_SIZE + the_hash_algo->rawsz) char *get_commit_graph_filename(const char *obj_dir) { return xstrfmt("%s/info/commit-graph", obj_dir); } +static uint8_t oid_version(void) +{ + return 1; +} + static struct commit_graph *alloc_commit_graph(void) { struct commit_graph *g = xcalloc(1, sizeof(*g)); @@@ -83,10 -84,16 +83,10 @@@ static int commit_graph_compatible(stru struct commit_graph *load_commit_graph_one(const char *graph_file) { void *graph_map; - const unsigned char *data, *chunk_lookup; size_t graph_size; struct stat st; - uint32_t i; - struct commit_graph *graph; + struct commit_graph *ret; int fd = git_open(graph_file); - uint64_t last_chunk_offset; - uint32_t last_chunk_id; - uint32_t graph_signature; - unsigned char graph_version, hash_version; if (fd < 0) return NULL; @@@ -101,60 -108,32 +101,60 @@@ die(_("graph file %s is too small"), graph_file); } graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0); + ret = parse_commit_graph(graph_map, fd, graph_size); + + if (!ret) { + munmap(graph_map, graph_size); + close(fd); + exit(1); + } + + return ret; +} + +struct commit_graph *parse_commit_graph(void *graph_map, int fd, + size_t graph_size) +{ + const unsigned char *data, *chunk_lookup; + uint32_t i; + struct commit_graph *graph; + uint64_t last_chunk_offset; + uint32_t last_chunk_id; + uint32_t graph_signature; + unsigned char graph_version, hash_version; + + if (!graph_map) + return NULL; + + if (graph_size < GRAPH_MIN_SIZE) + return NULL; + data = (const unsigned char *)graph_map; graph_signature = get_be32(data); if (graph_signature != GRAPH_SIGNATURE) { error(_("graph signature %X does not match signature %X"), graph_signature, GRAPH_SIGNATURE); - goto cleanup_fail; + return NULL; } graph_version = *(unsigned char*)(data + 4); if (graph_version != GRAPH_VERSION) { error(_("graph version %X does not match version %X"), graph_version, GRAPH_VERSION); - goto cleanup_fail; + return NULL; } hash_version = *(unsigned char*)(data + 5); - if (hash_version != GRAPH_OID_VERSION) { + if (hash_version != oid_version()) { error(_("hash version %X does not match version %X"), - hash_version, GRAPH_OID_VERSION); - goto cleanup_fail; + hash_version, oid_version()); + return NULL; } graph = alloc_commit_graph(); - graph->hash_len = GRAPH_OID_LEN; + graph->hash_len = the_hash_algo->rawsz; graph->num_chunks = *(unsigned char*)(data + 6); graph->graph_fd = fd; graph->data = graph_map; @@@ -164,27 -143,16 +164,27 @@@ last_chunk_offset = 8; chunk_lookup = data + 8; for (i = 0; i < graph->num_chunks; i++) { - uint32_t chunk_id = get_be32(chunk_lookup + 0); - uint64_t chunk_offset = get_be64(chunk_lookup + 4); + uint32_t chunk_id; + uint64_t chunk_offset; int chunk_repeated = 0; + if (data + graph_size - chunk_lookup < + GRAPH_CHUNKLOOKUP_WIDTH) { + error(_("chunk lookup table entry missing; graph file may be incomplete")); + free(graph); + return NULL; + } + + chunk_id = get_be32(chunk_lookup + 0); + chunk_offset = get_be64(chunk_lookup + 4); + chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH; - if (chunk_offset > graph_size - GIT_MAX_RAWSZ) { + if (chunk_offset > graph_size - the_hash_algo->rawsz) { error(_("improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32), (uint32_t)chunk_offset); - goto cleanup_fail; + free(graph); + return NULL; } switch (chunk_id) { @@@ -209,18 -177,17 +209,18 @@@ graph->chunk_commit_data = data + chunk_offset; break; - case GRAPH_CHUNKID_LARGEEDGES: - if (graph->chunk_large_edges) + case GRAPH_CHUNKID_EXTRAEDGES: + if (graph->chunk_extra_edges) chunk_repeated = 1; else - graph->chunk_large_edges = data + chunk_offset; + graph->chunk_extra_edges = data + chunk_offset; break; } if (chunk_repeated) { error(_("chunk id %08x appears multiple times"), chunk_id); - goto cleanup_fail; + free(graph); + return NULL; } if (last_chunk_id == GRAPH_CHUNKID_OIDLOOKUP) @@@ -234,6 -201,11 +234,6 @@@ } return graph; - -cleanup_fail: - munmap(graph_map, graph_size); - close(fd); - exit(1); } static void prepare_commit_graph_one(struct repository *r, const char *obj_dir) @@@ -317,8 -289,7 +317,8 @@@ static int bsearch_graph(struct commit_ g->chunk_oid_lookup, g->hash_len, pos); } -static struct commit_list **insert_parent_or_die(struct commit_graph *g, +static struct commit_list **insert_parent_or_die(struct repository *r, + struct commit_graph *g, uint64_t pos, struct commit_list **pptr) { @@@ -329,7 -300,7 +329,7 @@@ die("invalid parent position %"PRIu64, pos); hashcpy(oid.hash, g->chunk_oid_lookup + g->hash_len * pos); - c = lookup_commit(the_repository, &oid); + c = lookup_commit(r, &oid); if (!c) die(_("could not find commit %s"), oid_to_hex(&oid)); c->graph_pos = pos; @@@ -343,9 -314,7 +343,9 @@@ static void fill_commit_graph_info(stru item->generation = get_be32(commit_data + g->hash_len + 8) >> 2; } -static int fill_commit_in_graph(struct commit *item, struct commit_graph *g, uint32_t pos) +static int fill_commit_in_graph(struct repository *r, + struct commit *item, + struct commit_graph *g, uint32_t pos) { uint32_t edge_value; uint32_t *parent_data_ptr; @@@ -369,21 -338,21 +369,21 @@@ edge_value = get_be32(commit_data + g->hash_len); if (edge_value == GRAPH_PARENT_NONE) return 1; - pptr = insert_parent_or_die(g, edge_value, pptr); + pptr = insert_parent_or_die(r, g, edge_value, pptr); edge_value = get_be32(commit_data + g->hash_len + 4); if (edge_value == GRAPH_PARENT_NONE) return 1; - if (!(edge_value & GRAPH_OCTOPUS_EDGES_NEEDED)) { + if (!(edge_value & GRAPH_EXTRA_EDGES_NEEDED)) { - pptr = insert_parent_or_die(g, edge_value, pptr); + pptr = insert_parent_or_die(r, g, edge_value, pptr); return 1; } - parent_data_ptr = (uint32_t*)(g->chunk_large_edges + + parent_data_ptr = (uint32_t*)(g->chunk_extra_edges + 4 * (uint64_t)(edge_value & GRAPH_EDGE_LAST_MASK)); do { edge_value = get_be32(parent_data_ptr); - pptr = insert_parent_or_die(g, + pptr = insert_parent_or_die(r, g, edge_value & GRAPH_EDGE_LAST_MASK, pptr); parent_data_ptr++; @@@ -402,9 -371,7 +402,9 @@@ static int find_commit_in_graph(struct } } -static int parse_commit_in_graph_one(struct commit_graph *g, struct commit *item) +static int parse_commit_in_graph_one(struct repository *r, + struct commit_graph *g, + struct commit *item) { uint32_t pos; @@@ -412,7 -379,7 +412,7 @@@ return 1; if (find_commit_in_graph(item, g, &pos)) - return fill_commit_in_graph(item, g, pos); + return fill_commit_in_graph(r, item, g, pos); return 0; } @@@ -421,7 -388,7 +421,7 @@@ int parse_commit_in_graph(struct reposi { if (!prepare_commit_graph(r)) return 0; - return parse_commit_in_graph_one(r->objects->commit_graph, item); + return parse_commit_in_graph_one(r, r->objects->commit_graph, item); } void load_commit_graph_info(struct repository *r, struct commit *item) @@@ -433,22 -400,19 +433,22 @@@ fill_commit_graph_info(item, r->objects->commit_graph, pos); } -static struct tree *load_tree_for_commit(struct commit_graph *g, struct commit *c) +static struct tree *load_tree_for_commit(struct repository *r, + struct commit_graph *g, + struct commit *c) { struct object_id oid; const unsigned char *commit_data = g->chunk_commit_data + GRAPH_DATA_WIDTH * (c->graph_pos); hashcpy(oid.hash, commit_data); - c->maybe_tree = lookup_tree(the_repository, &oid); + c->maybe_tree = lookup_tree(r, &oid); return c->maybe_tree; } -static struct tree *get_commit_tree_in_graph_one(struct commit_graph *g, +static struct tree *get_commit_tree_in_graph_one(struct repository *r, + struct commit_graph *g, const struct commit *c) { if (c->maybe_tree) @@@ -456,17 -420,19 +456,19 @@@ if (c->graph_pos == COMMIT_NOT_FROM_GRAPH) BUG("get_commit_tree_in_graph_one called from non-commit-graph commit"); - return load_tree_for_commit(g, (struct commit *)c); + return load_tree_for_commit(r, g, (struct commit *)c); } struct tree *get_commit_tree_in_graph(struct repository *r, const struct commit *c) { - return get_commit_tree_in_graph_one(r->objects->commit_graph, c); + return get_commit_tree_in_graph_one(r, r->objects->commit_graph, c); } static void write_graph_chunk_fanout(struct hashfile *f, struct commit **commits, - int nr_commits) + int nr_commits, + struct progress *progress, + uint64_t *progress_cnt) { int i, count = 0; struct commit **list = commits; @@@ -480,6 -446,7 +482,7 @@@ while (count < nr_commits) { if ((*list)->object.oid.hash[0] != i) break; + display_progress(progress, ++*progress_cnt); count++; list++; } @@@ -489,12 -456,16 +492,16 @@@ } static void write_graph_chunk_oids(struct hashfile *f, int hash_len, - struct commit **commits, int nr_commits) + struct commit **commits, int nr_commits, + struct progress *progress, + uint64_t *progress_cnt) { struct commit **list = commits; int count; - for (count = 0; count < nr_commits; count++, list++) + for (count = 0; count < nr_commits; count++, list++) { + display_progress(progress, ++*progress_cnt); hashwrite(f, (*list)->object.oid.hash, (int)hash_len); + } } static const unsigned char *commit_to_sha1(size_t index, void *table) @@@ -504,7 -475,9 +511,9 @@@ } static void write_graph_chunk_data(struct hashfile *f, int hash_len, - struct commit **commits, int nr_commits) + struct commit **commits, int nr_commits, + struct progress *progress, + uint64_t *progress_cnt) { struct commit **list = commits; struct commit **last = commits + nr_commits; @@@ -514,6 -487,7 +523,7 @@@ struct commit_list *parent; int edge_value; uint32_t packedDate[2]; + display_progress(progress, ++*progress_cnt); parse_commit(*list); hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len); @@@ -529,9 -503,7 +539,9 @@@ commit_to_sha1); if (edge_value < 0) - edge_value = GRAPH_PARENT_MISSING; + BUG("missing parent %s for commit %s", + oid_to_hex(&parent->item->object.oid), + oid_to_hex(&(*list)->object.oid)); } hashwrite_be32(f, edge_value); @@@ -542,21 -514,19 +552,21 @@@ if (!parent) edge_value = GRAPH_PARENT_NONE; else if (parent->next) - edge_value = GRAPH_OCTOPUS_EDGES_NEEDED | num_extra_edges; + edge_value = GRAPH_EXTRA_EDGES_NEEDED | num_extra_edges; else { edge_value = sha1_pos(parent->item->object.oid.hash, commits, nr_commits, commit_to_sha1); if (edge_value < 0) - edge_value = GRAPH_PARENT_MISSING; + BUG("missing parent %s for commit %s", + oid_to_hex(&parent->item->object.oid), + oid_to_hex(&(*list)->object.oid)); } hashwrite_be32(f, edge_value); - if (edge_value & GRAPH_OCTOPUS_EDGES_NEEDED) { + if (edge_value & GRAPH_EXTRA_EDGES_NEEDED) { do { num_extra_edges++; parent = parent->next; @@@ -577,9 -547,11 +587,11 @@@ } } - static void write_graph_chunk_large_edges(struct hashfile *f, + static void write_graph_chunk_extra_edges(struct hashfile *f, struct commit **commits, - int nr_commits) + int nr_commits, + struct progress *progress, + uint64_t *progress_cnt) { struct commit **list = commits; struct commit **last = commits + nr_commits; @@@ -587,6 -559,9 +599,9 @@@ while (list < last) { int num_parents = 0; + + display_progress(progress, ++*progress_cnt); + for (parent = (*list)->parents; num_parents < 3 && parent; parent = parent->next) num_parents++; @@@ -604,9 -579,7 +619,9 @@@ commit_to_sha1); if (edge_value < 0) - edge_value = GRAPH_PARENT_MISSING; + BUG("missing parent %s for commit %s", + oid_to_hex(&parent->item->object.oid), + oid_to_hex(&(*list)->object.oid)); else if (!parent->next) edge_value |= GRAPH_LAST_EDGE; @@@ -680,15 -653,15 +695,15 @@@ static void add_missing_parents(struct static void close_reachable(struct packed_oid_list *oids, int report_progress) { - int i, j; + int i; struct commit *commit; struct progress *progress = NULL; if (report_progress) progress = start_delayed_progress( - _("Loading known commits in commit graph"), j = 0); + _("Loading known commits in commit graph"), oids->nr); for (i = 0; i < oids->nr; i++) { - display_progress(progress, ++j); + display_progress(progress, i + 1); commit = lookup_commit(the_repository, &oids->list[i]); if (commit) commit->object.flags |= UNINTERESTING; @@@ -702,9 -675,9 +717,9 @@@ */ if (report_progress) progress = start_delayed_progress( - _("Expanding reachable commits in commit graph"), j = 0); + _("Expanding reachable commits in commit graph"), oids->nr); for (i = 0; i < oids->nr; i++) { - display_progress(progress, ++j); + display_progress(progress, i + 1); commit = lookup_commit(the_repository, &oids->list[i]); if (commit && !parse_commit(commit)) @@@ -714,9 -687,9 +729,9 @@@ if (report_progress) progress = start_delayed_progress( - _("Clearing commit marks in commit graph"), j = 0); + _("Clearing commit marks in commit graph"), oids->nr); for (i = 0; i < oids->nr; i++) { - display_progress(progress, ++j); + display_progress(progress, i + 1); commit = lookup_commit(the_repository, &oids->list[i]); if (commit) @@@ -810,13 -783,16 +825,17 @@@ void write_commit_graph(const char *obj int num_extra_edges; struct commit_list *parent; struct progress *progress = NULL; + const unsigned hashsz = the_hash_algo->rawsz; + uint64_t progress_cnt = 0; + struct strbuf progress_title = STRBUF_INIT; + unsigned long approx_nr_objects; if (!commit_graph_compatible(the_repository)) return; oids.nr = 0; - oids.alloc = approximate_object_count() / 32; + approx_nr_objects = approximate_object_count(); + oids.alloc = approx_nr_objects / 32; oids.progress = NULL; oids.progress_done = 0; @@@ -846,8 -822,12 +865,12 @@@ strbuf_addf(&packname, "%s/pack/", obj_dir); dirlen = packname.len; if (report_progress) { - oids.progress = start_delayed_progress( - _("Finding commits for commit graph"), 0); + strbuf_addf(&progress_title, + Q_("Finding commits for commit graph in %d pack", + "Finding commits for commit graph in %d packs", + pack_indexes->nr), + pack_indexes->nr); + oids.progress = start_delayed_progress(progress_title.buf, 0); oids.progress_done = 0; } for (i = 0; i < pack_indexes->nr; i++) { @@@ -865,14 -845,20 +888,20 @@@ free(p); } stop_progress(&oids.progress); + strbuf_reset(&progress_title); strbuf_release(&packname); } if (commit_hex) { - if (report_progress) - progress = start_delayed_progress( - _("Finding commits for commit graph"), - commit_hex->nr); + if (report_progress) { + strbuf_addf(&progress_title, + Q_("Finding commits for commit graph from %d ref", + "Finding commits for commit graph from %d refs", + commit_hex->nr), + commit_hex->nr); + progress = start_delayed_progress(progress_title.buf, + commit_hex->nr); + } for (i = 0; i < commit_hex->nr; i++) { const char *end; struct object_id oid; @@@ -892,28 -878,38 +921,38 @@@ } } stop_progress(&progress); + strbuf_reset(&progress_title); } if (!pack_indexes && !commit_hex) { if (report_progress) oids.progress = start_delayed_progress( - _("Finding commits for commit graph"), 0); + _("Finding commits for commit graph among packed objects"), + approx_nr_objects); for_each_packed_object(add_packed_commits, &oids, FOR_EACH_OBJECT_PACK_ORDER); + if (oids.progress_done < approx_nr_objects) + display_progress(oids.progress, approx_nr_objects); stop_progress(&oids.progress); } close_reachable(&oids, report_progress); + if (report_progress) + progress = start_delayed_progress( + _("Counting distinct commits in commit graph"), + oids.nr); + display_progress(progress, 0); /* TODO: Measure QSORT() progress */ QSORT(oids.list, oids.nr, commit_compare); - count_distinct = 1; for (i = 1; i < oids.nr; i++) { + display_progress(progress, i + 1); if (!oideq(&oids.list[i - 1], &oids.list[i])) count_distinct++; } + stop_progress(&progress); - if (count_distinct >= GRAPH_PARENT_MISSING) + if (count_distinct >= GRAPH_EDGE_LAST_MASK) die(_("the commit graph format cannot write %d commits"), count_distinct); commits.nr = 0; @@@ -921,8 -917,13 +960,13 @@@ ALLOC_ARRAY(commits.list, commits.alloc); num_extra_edges = 0; + if (report_progress) + progress = start_delayed_progress( + _("Finding extra edges in commit graph"), + oids.nr); for (i = 0; i < oids.nr; i++) { int num_parents = 0; + display_progress(progress, i + 1); if (i > 0 && oideq(&oids.list[i - 1], &oids.list[i])) continue; @@@ -939,8 -940,9 +983,9 @@@ commits.nr++; } num_chunks = num_extra_edges ? 4 : 3; + stop_progress(&progress); - if (commits.nr >= GRAPH_PARENT_MISSING) + if (commits.nr >= GRAPH_EDGE_LAST_MASK) die(_("too many commits to write graph")); compute_generation_numbers(&commits, report_progress); @@@ -958,7 -960,7 +1003,7 @@@ hashwrite_be32(f, GRAPH_SIGNATURE); hashwrite_u8(f, GRAPH_VERSION); - hashwrite_u8(f, GRAPH_OID_VERSION); + hashwrite_u8(f, oid_version()); hashwrite_u8(f, num_chunks); hashwrite_u8(f, 0); /* unused padding byte */ @@@ -966,15 -968,15 +1011,15 @@@ chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP; chunk_ids[2] = GRAPH_CHUNKID_DATA; if (num_extra_edges) - chunk_ids[3] = GRAPH_CHUNKID_LARGEEDGES; + chunk_ids[3] = GRAPH_CHUNKID_EXTRAEDGES; else chunk_ids[3] = 0; chunk_ids[4] = 0; chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH; chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE; - chunk_offsets[2] = chunk_offsets[1] + GRAPH_OID_LEN * commits.nr; - chunk_offsets[3] = chunk_offsets[2] + (GRAPH_OID_LEN + 16) * commits.nr; + chunk_offsets[2] = chunk_offsets[1] + hashsz * commits.nr; + chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * commits.nr; chunk_offsets[4] = chunk_offsets[3] + 4 * num_extra_edges; for (i = 0; i <= num_chunks; i++) { @@@ -986,10 -988,23 +1031,23 @@@ hashwrite(f, chunk_write, 12); } - write_graph_chunk_fanout(f, commits.list, commits.nr); - write_graph_chunk_oids(f, hashsz, commits.list, commits.nr); - write_graph_chunk_data(f, hashsz, commits.list, commits.nr); - write_graph_chunk_large_edges(f, commits.list, commits.nr); + if (report_progress) { + strbuf_addf(&progress_title, + Q_("Writing out commit graph in %d pass", + "Writing out commit graph in %d passes", + num_chunks), + num_chunks); + progress = start_delayed_progress( + progress_title.buf, + num_chunks * commits.nr); + } + write_graph_chunk_fanout(f, commits.list, commits.nr, progress, &progress_cnt); - write_graph_chunk_oids(f, GRAPH_OID_LEN, commits.list, commits.nr, progress, &progress_cnt); - write_graph_chunk_data(f, GRAPH_OID_LEN, commits.list, commits.nr, progress, &progress_cnt); ++ write_graph_chunk_oids(f, hashsz, commits.list, commits.nr, progress, &progress_cnt); ++ write_graph_chunk_data(f, hashsz, commits.list, commits.nr, progress, &progress_cnt); + if (num_extra_edges) + write_graph_chunk_extra_edges(f, commits.list, commits.nr, progress, &progress_cnt); + stop_progress(&progress); + strbuf_release(&progress_title); close_commit_graph(the_repository); finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC); @@@ -1074,7 -1089,7 +1132,7 @@@ int verify_commit_graph(struct reposito } graph_commit = lookup_commit(r, &cur_oid); - if (!parse_commit_in_graph_one(g, graph_commit)) + if (!parse_commit_in_graph_one(r, g, graph_commit)) graph_report("failed to parse %s from commit-graph", oid_to_hex(&cur_oid)); } @@@ -1110,7 -1125,7 +1168,7 @@@ continue; } - if (!oideq(&get_commit_tree_in_graph_one(g, graph_commit)->object.oid, + if (!oideq(&get_commit_tree_in_graph_one(r, g, graph_commit)->object.oid, get_commit_tree_oid(odb_commit))) graph_report("root tree OID for commit %s in commit-graph is %s != %s", oid_to_hex(&cur_oid), diff --combined commit-graph.h index 813e7c19f1,e6aff2c2e1..096d8bac34 --- a/commit-graph.h +++ b/commit-graph.h @@@ -49,14 -49,11 +49,14 @@@ struct commit_graph const uint32_t *chunk_oid_fanout; const unsigned char *chunk_oid_lookup; const unsigned char *chunk_commit_data; - const unsigned char *chunk_large_edges; + const unsigned char *chunk_extra_edges; }; struct commit_graph *load_commit_graph_one(const char *graph_file); +struct commit_graph *parse_commit_graph(void *graph_map, int fd, + size_t graph_size); + /* * Return 1 if and only if the repository has a commit-graph * file and generation numbers are computed in that file. diff --combined t/t5318-commit-graph.sh index 694f26079f,f4deb13b1d..16d10ebce8 --- a/t/t5318-commit-graph.sh +++ b/t/t5318-commit-graph.sh @@@ -122,7 -122,7 +122,7 @@@ test_expect_success 'write graph with m cd "$TRASH_DIRECTORY/full" && git commit-graph write && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "10" "large_edges" + graph_read_expect "10" "extra_edges" ' graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2 @@@ -157,7 -157,7 +157,7 @@@ test_expect_success 'write graph with n cd "$TRASH_DIRECTORY/full" && git commit-graph write && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "11" "large_edges" + graph_read_expect "11" "extra_edges" ' graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1 @@@ -167,7 -167,7 +167,7 @@@ test_expect_success 'write graph with n cd "$TRASH_DIRECTORY/full" && git commit-graph write && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "11" "large_edges" + graph_read_expect "11" "extra_edges" ' graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1 @@@ -177,7 -177,7 +177,7 @@@ test_expect_success 'build graph from l cd "$TRASH_DIRECTORY/full" && cat new-idx | git commit-graph write --stdin-packs && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "9" "large_edges" + graph_read_expect "9" "extra_edges" ' graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1 @@@ -200,7 -200,7 +200,7 @@@ test_expect_success 'build graph from c cd "$TRASH_DIRECTORY/full" && git rev-parse merge/3 | git commit-graph write --stdin-commits --append && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "10" "large_edges" + graph_read_expect "10" "extra_edges" ' graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 @@@ -210,7 -210,7 +210,7 @@@ test_expect_success 'build graph using cd "$TRASH_DIRECTORY/full" && git commit-graph write --reachable && test_path_is_file $objdir/info/commit-graph && - graph_read_expect "11" "large_edges" + graph_read_expect "11" "extra_edges" ' graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 @@@ -231,7 -231,7 +231,7 @@@ test_expect_success 'write graph in bar cd "$TRASH_DIRECTORY/bare" && git commit-graph write && test_path_is_file $baredir/info/commit-graph && - graph_read_expect "11" "large_edges" + graph_read_expect "11" "extra_edges" ' graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1 @@@ -366,10 -366,9 +366,10 @@@ GRAPH_OCTOPUS_DATA_OFFSET=$(($GRAPH_COM GRAPH_BYTE_OCTOPUS=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4)) GRAPH_BYTE_FOOTER=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4 * $NUM_OCTOPUS_EDGES)) -# usage: corrupt_graph_and_verify +# usage: corrupt_graph_and_verify [] # Manipulates the commit-graph file at the position -# by inserting the data, then runs 'git commit-graph verify' +# by inserting the data, optionally zeroing the file +# starting at , then runs 'git commit-graph verify' # and places the output in the file 'err'. Test 'err' for # the given string. corrupt_graph_and_verify() { @@@ -377,15 -376,11 +377,15 @@@ data="${2:-\0}" grepstr=$3 cd "$TRASH_DIRECTORY/full" && + orig_size=$(wc -c < $objdir/info/commit-graph) && + zero_pos=${4:-${orig_size}} && test_when_finished mv commit-graph-backup $objdir/info/commit-graph && cp $objdir/info/commit-graph commit-graph-backup && printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc && + dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" count=0 && + dd if=/dev/zero of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" count=$(($orig_size - $zero_pos)) && test_must_fail git commit-graph verify 2>test_err && - grep -v "^+" test_err >err + grep -v "^+" test_err >err && test_i18ngrep "$grepstr" err } @@@ -489,11 -484,6 +489,11 @@@ test_expect_success 'detect invalid che "incorrect checksum" ' +test_expect_success 'detect incorrect chunk count' ' + corrupt_graph_and_verify $GRAPH_BYTE_CHUNK_COUNT "\377" \ + "chunk lookup table entry missing" $GRAPH_CHUNK_LOOKUP_OFFSET +' + test_expect_success 'git fsck (checks commit-graph)' ' cd "$TRASH_DIRECTORY/full" && git fsck &&