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Diffstat (limited to 'commit-graph.c')
-rw-r--r--commit-graph.c152
1 files changed, 127 insertions, 25 deletions
diff --git a/commit-graph.c b/commit-graph.c
index 8a1bec7b8a..40c855f185 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -13,6 +13,9 @@
#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" */
@@ -56,6 +59,28 @@ static struct commit_graph *alloc_commit_graph(void)
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;
@@ -213,8 +238,9 @@ static int prepare_commit_graph(struct repository *r)
return !!r->objects->commit_graph;
r->objects->commit_graph_attempted = 1;
- if (repo_config_get_bool(r, "core.commitgraph", &config_value) ||
- !config_value)
+ 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
@@ -223,6 +249,9 @@ static int prepare_commit_graph(struct repository *r)
*/
return 0;
+ if (!commit_graph_compatible(r))
+ return 0;
+
obj_dir = r->objects->objectdir;
prepare_commit_graph_one(r, obj_dir);
prepare_alt_odb(r);
@@ -233,10 +262,28 @@ static int prepare_commit_graph(struct repository *r)
return !!r->objects->commit_graph;
}
-static void close_commit_graph(void)
+int generation_numbers_enabled(struct repository *r)
{
- free_commit_graph(the_repository->objects->commit_graph);
- the_repository->objects->commit_graph = NULL;
+ uint32_t first_generation;
+ struct commit_graph *g;
+ if (!prepare_commit_graph(r))
+ return 0;
+
+ 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;
+}
+
+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)
@@ -548,6 +595,8 @@ struct packed_oid_list {
struct object_id *list;
int nr;
int alloc;
+ struct progress *progress;
+ int progress_done;
};
static int add_packed_commits(const struct object_id *oid,
@@ -560,6 +609,9 @@ 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));
@@ -587,12 +639,18 @@ static void add_missing_parents(struct packed_oid_list *oids, struct commit *com
}
}
-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;
@@ -604,6 +662,7 @@ static void close_reachable(struct packed_oid_list *oids)
* 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))
@@ -611,19 +670,28 @@ static void close_reachable(struct packed_oid_list *oids)
}
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;
@@ -655,6 +723,7 @@ static void compute_generation_numbers(struct packed_commit_list* commits)
}
}
}
+ stop_progress(&progress);
}
static int add_ref_to_list(const char *refname,
@@ -667,19 +736,21 @@ 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;
+ struct string_list list = STRING_LIST_INIT_DUP;
- 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);
+
+ string_list_clear(&list, 0);
}
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;
@@ -692,9 +763,15 @@ void write_commit_graph(const char *obj_dir,
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.alloc = approximate_object_count() / 32;
+ oids.progress = NULL;
+ oids.progress_done = 0;
if (append) {
prepare_commit_graph_one(the_repository, obj_dir);
@@ -721,6 +798,11 @@ void write_commit_graph(const char *obj_dir,
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);
@@ -732,16 +814,23 @@ void write_commit_graph(const char *obj_dir,
die(_("error opening index for %s"), packname.buf);
for_each_object_in_pack(p, add_packed_commits, &oids, 0);
close_pack(p);
+ free(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;
@@ -754,18 +843,24 @@ void write_commit_graph(const char *obj_dir,
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++;
}
@@ -779,7 +874,7 @@ void write_commit_graph(const char *obj_dir,
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]);
@@ -799,12 +894,14 @@ void write_commit_graph(const char *obj_dir,
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))
+ if (safe_create_leading_directories(graph_name)) {
+ UNLEAK(graph_name);
die_errno(_("unable to create leading directories of %s"),
graph_name);
+ }
hold_lock_file_for_update(&lk, graph_name, LOCK_DIE_ON_ERROR);
f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
@@ -845,13 +942,13 @@ void write_commit_graph(const char *obj_dir,
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);
+ free(graph_name);
+ free(commits.list);
free(oids.list);
- oids.alloc = 0;
- oids.nr = 0;
}
#define VERIFY_COMMIT_GRAPH_ERROR_HASH 2
@@ -878,6 +975,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
int generation_zero = 0;
struct hashfile *f;
int devnull;
+ struct progress *progress = NULL;
if (!g) {
graph_report("no commit-graph file loaded");
@@ -900,7 +998,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
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;
}
@@ -945,11 +1043,14 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
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);
@@ -960,7 +1061,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
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),
@@ -977,7 +1078,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
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),
@@ -1026,6 +1127,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
graph_commit->date,
odb_commit->date);
}
+ stop_progress(&progress);
return verify_commit_graph_error;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 18:08:07 +0000