#include "sha1-lookup.h"
#include "wt-status.h"
#include "advice.h"
+#include "refs.h"
static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
const char *commit_type = "commit";
-struct commit *lookup_commit_reference_gently(const struct object_id *oid,
- int quiet)
+struct commit *lookup_commit_reference_gently(struct repository *r,
+ const struct object_id *oid, int quiet)
{
- struct object *obj = deref_tag(parse_object(oid), NULL, 0);
+ struct object *obj = deref_tag(r,
+ parse_object(r, oid),
+ NULL, 0);
if (!obj)
return NULL;
- return object_as_type(obj, OBJ_COMMIT, quiet);
+ return object_as_type(r, obj, OBJ_COMMIT, quiet);
}
-struct commit *lookup_commit_reference(const struct object_id *oid)
+struct commit *lookup_commit_reference(struct repository *r, const struct object_id *oid)
{
- return lookup_commit_reference_gently(oid, 0);
+ return lookup_commit_reference_gently(r, oid, 0);
}
struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref_name)
{
- struct commit *c = lookup_commit_reference(oid);
+ struct commit *c = lookup_commit_reference(the_repository, oid);
if (!c)
die(_("could not parse %s"), ref_name);
if (oidcmp(oid, &c->object.oid)) {
return c;
}
-struct commit *lookup_commit(const struct object_id *oid)
+struct commit *lookup_commit(struct repository *r, const struct object_id *oid)
{
- struct object *obj = lookup_object(oid->hash);
+ struct object *obj = lookup_object(r, oid->hash);
if (!obj)
- return create_object(the_repository, oid->hash,
- alloc_commit_node(the_repository));
- return object_as_type(obj, OBJ_COMMIT, 0);
+ return create_object(r, oid->hash,
+ alloc_commit_node(r));
+ return object_as_type(r, obj, OBJ_COMMIT, 0);
}
struct commit *lookup_commit_reference_by_name(const char *name)
if (get_oid_committish(name, &oid))
return NULL;
- commit = lookup_commit_reference(&oid);
+ commit = lookup_commit_reference(the_repository, &oid);
if (parse_commit(commit))
return NULL;
return commit;
unsigned long size;
};
define_commit_slab(buffer_slab, struct commit_buffer);
-static struct buffer_slab buffer_slab = COMMIT_SLAB_INIT(1, buffer_slab);
-void set_commit_buffer(struct commit *commit, void *buffer, unsigned long size)
+struct buffer_slab *allocate_commit_buffer_slab(void)
{
- struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ struct buffer_slab *bs = xmalloc(sizeof(*bs));
+ init_buffer_slab(bs);
+ return bs;
+}
+
+void free_commit_buffer_slab(struct buffer_slab *bs)
+{
+ clear_buffer_slab(bs);
+ free(bs);
+}
+
+void set_commit_buffer(struct repository *r, struct commit *commit, void *buffer, unsigned long size)
+{
+ struct commit_buffer *v = buffer_slab_at(
+ r->parsed_objects->buffer_slab, commit);
v->buffer = buffer;
v->size = size;
}
-const void *get_cached_commit_buffer(const struct commit *commit, unsigned long *sizep)
+const void *get_cached_commit_buffer(struct repository *r, const struct commit *commit, unsigned long *sizep)
{
- struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
+ struct commit_buffer *v = buffer_slab_peek(
+ r->parsed_objects->buffer_slab, commit);
if (!v) {
if (sizep)
*sizep = 0;
const void *get_commit_buffer(const struct commit *commit, unsigned long *sizep)
{
- const void *ret = get_cached_commit_buffer(commit, sizep);
+ const void *ret = get_cached_commit_buffer(the_repository, commit, sizep);
if (!ret) {
enum object_type type;
unsigned long size;
void unuse_commit_buffer(const struct commit *commit, const void *buffer)
{
- struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
+ struct commit_buffer *v = buffer_slab_peek(
+ the_repository->parsed_objects->buffer_slab, commit);
if (!(v && v->buffer == buffer))
free((void *)buffer);
}
void free_commit_buffer(struct commit *commit)
{
- struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
+ struct commit_buffer *v = buffer_slab_peek(
+ the_repository->parsed_objects->buffer_slab, commit);
if (v) {
FREE_AND_NULL(v->buffer);
v->size = 0;
if (commit->graph_pos == COMMIT_NOT_FROM_GRAPH)
BUG("commit has NULL tree, but was not loaded from commit-graph");
- return get_commit_tree_in_graph(commit);
+ return get_commit_tree_in_graph(the_repository, commit);
}
struct object_id *get_commit_tree_oid(const struct commit *commit)
const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep)
{
- struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
+ struct commit_buffer *v = buffer_slab_peek(
+ the_repository->parsed_objects->buffer_slab, commit);
void *ret;
if (!v) {
return ret;
}
-int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size, int check_graph)
+int parse_commit_buffer(struct repository *r, struct commit *item, const void *buffer, unsigned long size, int check_graph)
{
const char *tail = buffer;
const char *bufptr = buffer;
struct object_id parent;
struct commit_list **pptr;
struct commit_graft *graft;
- const int tree_entry_len = GIT_SHA1_HEXSZ + 5;
- const int parent_entry_len = GIT_SHA1_HEXSZ + 7;
+ const int tree_entry_len = the_hash_algo->hexsz + 5;
+ const int parent_entry_len = the_hash_algo->hexsz + 7;
if (item->object.parsed)
return 0;
if (get_oid_hex(bufptr + 5, &parent) < 0)
return error("bad tree pointer in commit %s",
oid_to_hex(&item->object.oid));
- item->maybe_tree = lookup_tree(&parent);
+ item->maybe_tree = lookup_tree(r, &parent);
bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */
pptr = &item->parents;
- graft = lookup_commit_graft(the_repository, &item->object.oid);
+ graft = lookup_commit_graft(r, &item->object.oid);
while (bufptr + parent_entry_len < tail && !memcmp(bufptr, "parent ", 7)) {
struct commit *new_parent;
*/
if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
continue;
- new_parent = lookup_commit(&parent);
+ new_parent = lookup_commit(r, &parent);
if (new_parent)
pptr = &commit_list_insert(new_parent, pptr)->next;
}
int i;
struct commit *new_parent;
for (i = 0; i < graft->nr_parent; i++) {
- new_parent = lookup_commit(&graft->parent[i]);
+ new_parent = lookup_commit(r,
+ &graft->parent[i]);
if (!new_parent)
continue;
pptr = &commit_list_insert(new_parent, pptr)->next;
item->date = parse_commit_date(bufptr, tail);
if (check_graph)
- load_commit_graph_info(item);
+ load_commit_graph_info(the_repository, item);
return 0;
}
-int parse_commit_gently(struct commit *item, int quiet_on_missing)
+int parse_commit_internal(struct commit *item, int quiet_on_missing, int use_commit_graph)
{
enum object_type type;
void *buffer;
return -1;
if (item->object.parsed)
return 0;
- if (parse_commit_in_graph(item))
+ if (use_commit_graph && parse_commit_in_graph(the_repository, item))
return 0;
buffer = read_object_file(&item->object.oid, &type, &size);
if (!buffer)
return error("Object %s not a commit",
oid_to_hex(&item->object.oid));
}
- ret = parse_commit_buffer(item, buffer, size, 0);
+
+ ret = parse_commit_buffer(the_repository, item, buffer, size, 0);
if (save_commit_buffer && !ret) {
- set_commit_buffer(item, buffer, size);
+ set_commit_buffer(the_repository, item, buffer, size);
return 0;
}
free(buffer);
return ret;
}
+int parse_commit_gently(struct commit *item, int quiet_on_missing)
+{
+ return parse_commit_internal(item, quiet_on_missing, 1);
+}
+
void parse_commit_or_die(struct commit *item)
{
if (parse_commit(item))
return result;
}
+struct rev_collect {
+ struct commit **commit;
+ int nr;
+ int alloc;
+ unsigned int initial : 1;
+};
+
+static void add_one_commit(struct object_id *oid, struct rev_collect *revs)
+{
+ struct commit *commit;
+
+ if (is_null_oid(oid))
+ return;
+
+ commit = lookup_commit(the_repository, oid);
+ if (!commit ||
+ (commit->object.flags & TMP_MARK) ||
+ parse_commit(commit))
+ return;
+
+ ALLOC_GROW(revs->commit, revs->nr + 1, revs->alloc);
+ revs->commit[revs->nr++] = commit;
+ commit->object.flags |= TMP_MARK;
+}
+
+static int collect_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
+ const char *ident, timestamp_t timestamp,
+ int tz, const char *message, void *cbdata)
+{
+ struct rev_collect *revs = cbdata;
+
+ if (revs->initial) {
+ revs->initial = 0;
+ add_one_commit(ooid, revs);
+ }
+ add_one_commit(noid, revs);
+ return 0;
+}
+
+struct commit *get_fork_point(const char *refname, struct commit *commit)
+{
+ struct object_id oid;
+ struct rev_collect revs;
+ struct commit_list *bases;
+ int i;
+ struct commit *ret = NULL;
+
+ memset(&revs, 0, sizeof(revs));
+ revs.initial = 1;
+ for_each_reflog_ent(refname, collect_one_reflog_ent, &revs);
+
+ if (!revs.nr && !get_oid(refname, &oid))
+ add_one_commit(&oid, &revs);
+
+ for (i = 0; i < revs.nr; i++)
+ revs.commit[i]->object.flags &= ~TMP_MARK;
+
+ bases = get_merge_bases_many(commit, revs.nr, revs.commit);
+
+ /*
+ * There should be one and only one merge base, when we found
+ * a common ancestor among reflog entries.
+ */
+ if (!bases || bases->next)
+ goto cleanup_return;
+
+ /* And the found one must be one of the reflog entries */
+ for (i = 0; i < revs.nr; i++)
+ if (&bases->item->object == &revs.commit[i]->object)
+ break; /* found */
+ if (revs.nr <= i)
+ goto cleanup_return;
+
+ ret = bases->item;
+
+cleanup_return:
+ free_commit_list(bases);
+ return ret;
+}
+
struct commit_list *get_octopus_merge_bases(struct commit_list *in)
{
struct commit_list *i, *j, *k, *ret = NULL;
struct object_id oid;
if (get_oid(name, &oid))
return NULL;
- obj = parse_object(&oid);
+ obj = parse_object(the_repository, &oid);
commit = (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT);
if (commit && !merge_remote_util(commit))
set_merge_remote_desc(commit, name, obj);