#include "commit-graph.h"
#include "object-store.h"
#include "alloc.h"
+#include "hashmap.h"
+#include "replace-object.h"
+#include "progress.h"
#define GRAPH_SIGNATURE 0x43475048 /* "CGPH" */
#define GRAPH_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */
return g;
}
+extern int read_replace_refs;
+
+static int commit_graph_compatible(struct repository *r)
+{
+ if (!r->gitdir)
+ return 0;
+
+ if (read_replace_refs) {
+ prepare_replace_object(r);
+ if (hashmap_get_size(&r->objects->replace_map->map))
+ return 0;
+ }
+
+ prepare_commit_graft(r);
+ if (r->parsed_objects && r->parsed_objects->grafts_nr)
+ return 0;
+ if (is_repository_shallow(r))
+ return 0;
+
+ return 1;
+}
+
struct commit_graph *load_commit_graph_one(const char *graph_file)
{
void *graph_map;
if (graph_size < GRAPH_MIN_SIZE) {
close(fd);
- die("graph file %s is too small", graph_file);
+ die(_("graph file %s is too small"), graph_file);
}
graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0);
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",
+ error(_("graph signature %X does not match signature %X"),
graph_signature, GRAPH_SIGNATURE);
goto cleanup_fail;
}
graph_version = *(unsigned char*)(data + 4);
if (graph_version != GRAPH_VERSION) {
- error("graph version %X does not match version %X",
+ error(_("graph version %X does not match version %X"),
graph_version, GRAPH_VERSION);
goto cleanup_fail;
}
hash_version = *(unsigned char*)(data + 5);
if (hash_version != GRAPH_OID_VERSION) {
- error("hash version %X does not match version %X",
+ error(_("hash version %X does not match version %X"),
hash_version, GRAPH_OID_VERSION);
goto cleanup_fail;
}
chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH;
if (chunk_offset > graph_size - GIT_MAX_RAWSZ) {
- error("improper chunk offset %08x%08x", (uint32_t)(chunk_offset >> 32),
+ error(_("improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32),
(uint32_t)chunk_offset);
goto cleanup_fail;
}
}
if (chunk_repeated) {
- error("chunk id %08x appears multiple times", chunk_id);
+ error(_("chunk id %08x appears multiple times"), chunk_id);
goto cleanup_fail;
}
exit(1);
}
-/* global storage */
-static struct commit_graph *commit_graph = NULL;
-
-static void prepare_commit_graph_one(const char *obj_dir)
+static void prepare_commit_graph_one(struct repository *r, const char *obj_dir)
{
char *graph_name;
- if (commit_graph)
+ if (r->objects->commit_graph)
return;
graph_name = get_commit_graph_filename(obj_dir);
- commit_graph = load_commit_graph_one(graph_name);
+ r->objects->commit_graph =
+ load_commit_graph_one(graph_name);
FREE_AND_NULL(graph_name);
}
-static int prepare_commit_graph_run_once = 0;
-static void prepare_commit_graph(void)
+/*
+ * Return 1 if commit_graph is non-NULL, and 0 otherwise.
+ *
+ * On the first invocation, this function attemps to load the commit
+ * graph if the_repository is configured to have one.
+ */
+static int prepare_commit_graph(struct repository *r)
{
struct alternate_object_database *alt;
char *obj_dir;
+ int config_value;
- if (prepare_commit_graph_run_once)
- return;
- prepare_commit_graph_run_once = 1;
+ if (r->objects->commit_graph_attempted)
+ return !!r->objects->commit_graph;
+ r->objects->commit_graph_attempted = 1;
+
+ if (!git_env_bool(GIT_TEST_COMMIT_GRAPH, 0) &&
+ (repo_config_get_bool(r, "core.commitgraph", &config_value) ||
+ !config_value))
+ /*
+ * This repository is not configured to use commit graphs, so
+ * do not load one. (But report commit_graph_attempted anyway
+ * so that commit graph loading is not attempted again for this
+ * repository.)
+ */
+ return 0;
- obj_dir = get_object_directory();
- prepare_commit_graph_one(obj_dir);
- prepare_alt_odb(the_repository);
- for (alt = the_repository->objects->alt_odb_list;
- !commit_graph && alt;
+ if (!commit_graph_compatible(r))
+ return 0;
+
+ obj_dir = r->objects->objectdir;
+ prepare_commit_graph_one(r, obj_dir);
+ prepare_alt_odb(r);
+ for (alt = r->objects->alt_odb_list;
+ !r->objects->commit_graph && alt;
alt = alt->next)
- prepare_commit_graph_one(alt->path);
+ prepare_commit_graph_one(r, alt->path);
+ return !!r->objects->commit_graph;
}
-static void close_commit_graph(void)
+int generation_numbers_enabled(struct repository *r)
{
- if (!commit_graph)
- return;
+ uint32_t first_generation;
+ struct commit_graph *g;
+ if (!prepare_commit_graph(r))
+ return 0;
- if (commit_graph->graph_fd >= 0) {
- munmap((void *)commit_graph->data, commit_graph->data_len);
- commit_graph->data = NULL;
- close(commit_graph->graph_fd);
- }
+ g = r->objects->commit_graph;
+
+ if (!g->num_commits)
+ return 0;
+
+ first_generation = get_be32(g->chunk_commit_data +
+ g->hash_len + 8) >> 2;
+
+ return !!first_generation;
+}
- FREE_AND_NULL(commit_graph);
+void close_commit_graph(struct repository *r)
+{
+ free_commit_graph(r->objects->commit_graph);
+ r->objects->commit_graph = NULL;
}
static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t *pos)
hashcpy(oid.hash, g->chunk_oid_lookup + g->hash_len * pos);
c = lookup_commit(the_repository, &oid);
if (!c)
- die("could not find commit %s", oid_to_hex(&oid));
+ die(_("could not find commit %s"), oid_to_hex(&oid));
c->graph_pos = pos;
return &commit_list_insert(c, pptr)->next;
}
{
uint32_t pos;
- if (!core_commit_graph)
- return 0;
if (item->object.parsed)
return 1;
return 0;
}
-int parse_commit_in_graph(struct commit *item)
+int parse_commit_in_graph(struct repository *r, struct commit *item)
{
- if (!core_commit_graph)
+ if (!prepare_commit_graph(r))
return 0;
-
- prepare_commit_graph();
- if (commit_graph)
- return parse_commit_in_graph_one(commit_graph, item);
- return 0;
+ return parse_commit_in_graph_one(r->objects->commit_graph, item);
}
-void load_commit_graph_info(struct commit *item)
+void load_commit_graph_info(struct repository *r, struct commit *item)
{
uint32_t pos;
- if (!core_commit_graph)
+ if (!prepare_commit_graph(r))
return;
- prepare_commit_graph();
- if (commit_graph && find_commit_in_graph(item, commit_graph, &pos))
- fill_commit_graph_info(item, commit_graph, pos);
+ if (find_commit_in_graph(item, r->objects->commit_graph, &pos))
+ fill_commit_graph_info(item, r->objects->commit_graph, pos);
}
static struct tree *load_tree_for_commit(struct commit_graph *g, struct commit *c)
return load_tree_for_commit(g, (struct commit *)c);
}
-struct tree *get_commit_tree_in_graph(const struct commit *c)
+struct tree *get_commit_tree_in_graph(struct repository *r, const struct commit *c)
{
- return get_commit_tree_in_graph_one(commit_graph, c);
+ return get_commit_tree_in_graph_one(r->objects->commit_graph, c);
}
static void write_graph_chunk_fanout(struct hashfile *f,
struct object_id *list;
int nr;
int alloc;
+ struct progress *progress;
+ int progress_done;
};
static int add_packed_commits(const struct object_id *oid,
off_t offset = nth_packed_object_offset(pack, pos);
struct object_info oi = OBJECT_INFO_INIT;
+ if (list->progress)
+ display_progress(list->progress, ++list->progress_done);
+
oi.typep = &type;
if (packed_object_info(the_repository, pack, offset, &oi) < 0)
- die("unable to get type of object %s", oid_to_hex(oid));
+ die(_("unable to get type of object %s"), oid_to_hex(oid));
if (type != OBJ_COMMIT)
return 0;
}
}
-static void close_reachable(struct packed_oid_list *oids)
+static void close_reachable(struct packed_oid_list *oids, int report_progress)
{
int i;
struct commit *commit;
+ struct progress *progress = NULL;
+ int j = 0;
+ if (report_progress)
+ progress = start_delayed_progress(
+ _("Annotating commits in commit graph"), 0);
for (i = 0; i < oids->nr; i++) {
+ display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);
if (commit)
commit->object.flags |= UNINTERESTING;
* closure.
*/
for (i = 0; i < oids->nr; i++) {
+ display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);
if (commit && !parse_commit(commit))
}
for (i = 0; i < oids->nr; i++) {
+ display_progress(progress, ++j);
commit = lookup_commit(the_repository, &oids->list[i]);
if (commit)
commit->object.flags &= ~UNINTERESTING;
}
+ stop_progress(&progress);
}
-static void compute_generation_numbers(struct packed_commit_list* commits)
+static void compute_generation_numbers(struct packed_commit_list* commits,
+ int report_progress)
{
int i;
struct commit_list *list = NULL;
+ struct progress *progress = NULL;
+ if (report_progress)
+ progress = start_progress(
+ _("Computing commit graph generation numbers"),
+ commits->nr);
for (i = 0; i < commits->nr; i++) {
+ display_progress(progress, i + 1);
if (commits->list[i]->generation != GENERATION_NUMBER_INFINITY &&
commits->list[i]->generation != GENERATION_NUMBER_ZERO)
continue;
}
}
}
+ stop_progress(&progress);
}
static int add_ref_to_list(const char *refname,
return 0;
}
-void write_commit_graph_reachable(const char *obj_dir, int append)
+void write_commit_graph_reachable(const char *obj_dir, int append,
+ int report_progress)
{
struct string_list list;
string_list_init(&list, 1);
for_each_ref(add_ref_to_list, &list);
- write_commit_graph(obj_dir, NULL, &list, append);
+ write_commit_graph(obj_dir, NULL, &list, append, report_progress);
}
void write_commit_graph(const char *obj_dir,
struct string_list *pack_indexes,
struct string_list *commit_hex,
- int append)
+ int append, int report_progress)
{
struct packed_oid_list oids;
struct packed_commit_list commits;
int num_chunks;
int num_extra_edges;
struct commit_list *parent;
+ struct progress *progress = NULL;
+
+ if (!commit_graph_compatible(the_repository))
+ return;
oids.nr = 0;
oids.alloc = approximate_object_count() / 4;
+ oids.progress = NULL;
+ oids.progress_done = 0;
if (append) {
- prepare_commit_graph_one(obj_dir);
- if (commit_graph)
- oids.alloc += commit_graph->num_commits;
+ prepare_commit_graph_one(the_repository, obj_dir);
+ if (the_repository->objects->commit_graph)
+ oids.alloc += the_repository->objects->commit_graph->num_commits;
}
if (oids.alloc < 1024)
oids.alloc = 1024;
ALLOC_ARRAY(oids.list, oids.alloc);
- if (append && commit_graph) {
+ if (append && the_repository->objects->commit_graph) {
+ struct commit_graph *commit_graph =
+ the_repository->objects->commit_graph;
for (i = 0; i < commit_graph->num_commits; i++) {
const unsigned char *hash = commit_graph->chunk_oid_lookup +
commit_graph->hash_len * i;
int dirlen;
strbuf_addf(&packname, "%s/pack/", obj_dir);
dirlen = packname.len;
+ if (report_progress) {
+ oids.progress = start_delayed_progress(
+ _("Finding commits for commit graph"), 0);
+ oids.progress_done = 0;
+ }
for (i = 0; i < pack_indexes->nr; i++) {
struct packed_git *p;
strbuf_setlen(&packname, dirlen);
strbuf_addstr(&packname, pack_indexes->items[i].string);
p = add_packed_git(packname.buf, packname.len, 1);
if (!p)
- die("error adding pack %s", packname.buf);
+ die(_("error adding pack %s"), packname.buf);
if (open_pack_index(p))
- die("error opening index for %s", packname.buf);
- for_each_object_in_pack(p, add_packed_commits, &oids);
+ die(_("error opening index for %s"), packname.buf);
+ for_each_object_in_pack(p, add_packed_commits, &oids, 0);
close_pack(p);
}
+ stop_progress(&oids.progress);
strbuf_release(&packname);
}
if (commit_hex) {
+ if (report_progress)
+ progress = start_delayed_progress(
+ _("Finding commits for commit graph"),
+ commit_hex->nr);
for (i = 0; i < commit_hex->nr; i++) {
const char *end;
struct object_id oid;
struct commit *result;
+ display_progress(progress, i + 1);
if (commit_hex->items[i].string &&
parse_oid_hex(commit_hex->items[i].string, &oid, &end))
continue;
oids.nr++;
}
}
+ stop_progress(&progress);
}
- if (!pack_indexes && !commit_hex)
+ if (!pack_indexes && !commit_hex) {
+ if (report_progress)
+ oids.progress = start_delayed_progress(
+ _("Finding commits for commit graph"), 0);
for_each_packed_object(add_packed_commits, &oids, 0);
+ stop_progress(&oids.progress);
+ }
- close_reachable(&oids);
+ close_reachable(&oids, report_progress);
QSORT(oids.list, oids.nr, commit_compare);
count_distinct = 1;
for (i = 1; i < oids.nr; i++) {
- if (oidcmp(&oids.list[i-1], &oids.list[i]))
+ if (!oideq(&oids.list[i - 1], &oids.list[i]))
count_distinct++;
}
num_extra_edges = 0;
for (i = 0; i < oids.nr; i++) {
int num_parents = 0;
- if (i > 0 && !oidcmp(&oids.list[i-1], &oids.list[i]))
+ if (i > 0 && oideq(&oids.list[i - 1], &oids.list[i]))
continue;
commits.list[commits.nr] = lookup_commit(the_repository, &oids.list[i]);
if (commits.nr >= GRAPH_PARENT_MISSING)
die(_("too many commits to write graph"));
- compute_generation_numbers(&commits);
+ compute_generation_numbers(&commits, report_progress);
graph_name = get_commit_graph_filename(obj_dir);
if (safe_create_leading_directories(graph_name))
write_graph_chunk_data(f, GRAPH_OID_LEN, commits.list, commits.nr);
write_graph_chunk_large_edges(f, commits.list, commits.nr);
- close_commit_graph();
+ close_commit_graph(the_repository);
finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC);
commit_lock_file(&lk);
int generation_zero = 0;
struct hashfile *f;
int devnull;
+ struct progress *progress = NULL;
if (!g) {
graph_report("no commit-graph file loaded");
f = hashfd(devnull, NULL);
hashwrite(f, g->data, g->data_len - g->hash_len);
finalize_hashfile(f, checksum.hash, CSUM_CLOSE);
- if (hashcmp(checksum.hash, g->data + g->data_len - g->hash_len)) {
+ if (!hasheq(checksum.hash, g->data + g->data_len - g->hash_len)) {
graph_report(_("the commit-graph file has incorrect checksum and is likely corrupt"));
verify_commit_graph_error = VERIFY_COMMIT_GRAPH_ERROR_HASH;
}
if (verify_commit_graph_error & ~VERIFY_COMMIT_GRAPH_ERROR_HASH)
return verify_commit_graph_error;
+ progress = start_progress(_("Verifying commits in commit graph"),
+ g->num_commits);
for (i = 0; i < g->num_commits; i++) {
struct commit *graph_commit, *odb_commit;
struct commit_list *graph_parents, *odb_parents;
uint32_t max_generation = 0;
+ display_progress(progress, i + 1);
hashcpy(cur_oid.hash, g->chunk_oid_lookup + g->hash_len * i);
graph_commit = lookup_commit(r, &cur_oid);
continue;
}
- if (oidcmp(&get_commit_tree_in_graph_one(g, graph_commit)->object.oid,
+ if (!oideq(&get_commit_tree_in_graph_one(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),
break;
}
- if (oidcmp(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
+ if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
graph_report("commit-graph parent for %s is %s != %s",
oid_to_hex(&cur_oid),
oid_to_hex(&graph_parents->item->object.oid),
graph_commit->date,
odb_commit->date);
}
+ stop_progress(&progress);
return verify_commit_graph_error;
}
+
+void free_commit_graph(struct commit_graph *g)
+{
+ if (!g)
+ return;
+ if (g->graph_fd >= 0) {
+ munmap((void *)g->data, g->data_len);
+ g->data = NULL;
+ close(g->graph_fd);
+ }
+ free(g);
+}