#include "diff.h"
#include "revision.h"
#include "parse-options.h"
+#include "repository.h"
+#include "commit-reach.h"
static int show_merge_base(struct commit **rev, int rev_nr, int show_all)
{
- struct commit_list *result;
+ struct commit_list *result, *r;
result = get_merge_bases_many_dirty(rev[0], rev_nr - 1, rev + 1);
if (!result)
return 1;
- while (result) {
- printf("%s\n", oid_to_hex(&result->item->object.oid));
+ for (r = result; r; r = r->next) {
+ printf("%s\n", oid_to_hex(&r->item->object.oid));
if (!show_all)
- return 0;
- result = result->next;
+ break;
}
+ free_commit_list(result);
return 0;
}
if (get_oid(arg, &revkey))
die("Not a valid object name %s", arg);
- r = lookup_commit_reference(&revkey);
+ r = lookup_commit_reference(the_repository, &revkey);
if (!r)
die("Not a valid commit name %s", arg);
static int handle_independent(int count, const char **args)
{
- struct commit_list *revs = NULL;
- struct commit_list *result;
+ struct commit_list *revs = NULL, *rev;
int i;
for (i = count - 1; i >= 0; i--)
commit_list_insert(get_commit_reference(args[i]), &revs);
- result = reduce_heads(revs);
- if (!result)
+ reduce_heads_replace(&revs);
+
+ if (!revs)
return 1;
- while (result) {
- printf("%s\n", oid_to_hex(&result->item->object.oid));
- result = result->next;
- }
+ for (rev = revs; rev; rev = rev->next)
+ printf("%s\n", oid_to_hex(&rev->item->object.oid));
+
+ free_commit_list(revs);
return 0;
}
static int handle_octopus(int count, const char **args, int show_all)
{
struct commit_list *revs = NULL;
- struct commit_list *result;
+ struct commit_list *result, *rev;
int i;
for (i = count - 1; i >= 0; i--)
commit_list_insert(get_commit_reference(args[i]), &revs);
- result = reduce_heads(get_octopus_merge_bases(revs));
+ result = get_octopus_merge_bases(revs);
+ free_commit_list(revs);
+ reduce_heads_replace(&result);
if (!result)
return 1;
- while (result) {
- printf("%s\n", oid_to_hex(&result->item->object.oid));
+ for (rev = result; rev; rev = rev->next) {
+ printf("%s\n", oid_to_hex(&rev->item->object.oid));
if (!show_all)
- return 0;
- result = result->next;
+ break;
}
+ free_commit_list(result);
return 0;
}
return 1;
}
-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(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;
-}
-
static int handle_fork_point(int argc, const char **argv)
{
struct object_id oid;
char *refname;
+ struct commit *derived, *fork_point;
const char *commitname;
- struct rev_collect revs;
- struct commit *derived;
- struct commit_list *bases;
- int i, ret = 0;
- switch (dwim_ref(argv[0], strlen(argv[0]), oid.hash, &refname)) {
+ switch (dwim_ref(argv[0], strlen(argv[0]), &oid, &refname)) {
case 0:
die("No such ref: '%s'", argv[0]);
case 1:
if (get_oid(commitname, &oid))
die("Not a valid object name: '%s'", commitname);
- derived = lookup_commit_reference(&oid);
- 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;
+ derived = lookup_commit_reference(the_repository, &oid);
- bases = get_merge_bases_many_dirty(derived, revs.nr, revs.commit);
+ fork_point = get_fork_point(refname, derived);
- /*
- * There should be one and only one merge base, when we found
- * a common ancestor among reflog entries.
- */
- if (!bases || bases->next) {
- ret = 1;
- 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) {
- ret = 1; /* not found */
- goto cleanup_return;
- }
-
- printf("%s\n", oid_to_hex(&bases->item->object.oid));
+ if (!fork_point)
+ return 1;
-cleanup_return:
- free_commit_list(bases);
- return ret;
+ printf("%s\n", oid_to_hex(&fork_point->object.oid));
+ return 0;
}
int cmd_merge_base(int argc, const char **argv, const char *prefix)