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;
- 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 (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 = 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)
{
- if (!commit_graph)
- return;
-
- if (commit_graph->graph_fd >= 0) {
- munmap((void *)commit_graph->data, commit_graph->data_len);
- commit_graph->data = NULL;
- close(commit_graph->graph_fd);
- }
-
- FREE_AND_NULL(commit_graph);
+ free_commit_graph(the_repository->objects->commit_graph);
+ the_repository->objects->commit_graph = NULL;
}
static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t *pos)
{
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,
oids.alloc = approximate_object_count() / 4;
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;
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);
+}