static int dereference_to_non_tag(git_object **out, git_object *obj)
{
if (git_object_type(obj) == GIT_OBJ_TAG)
return git_tag_peel(out, (git_tag *)obj);
return git_object_dup(out, obj);
}
emacs_value egit_tag_peel(emacs_env *env, emacs_value _tag)
{
EGIT_ASSERT_TAG(_tag);
git_tag *tag = EGIT_EXTRACT(_tag);
git_object *obj;
int retval = git_tag_peel(&obj, tag);
EGIT_CHECK_ERROR(retval);
return egit_wrap(env, EGIT_OBJECT, obj, EGIT_EXTRACT_PARENT(_tag));
}
int git_branch_create(
git_oid *oid_out,
git_repository *repo,
const char *branch_name,
const git_object *target,
int force)
{
git_otype target_type = GIT_OBJ_BAD;
git_object *commit = NULL;
git_reference *branch = NULL;
git_buf canonical_branch_name = GIT_BUF_INIT;
int error = -1;
assert(repo && branch_name && target && oid_out);
if (git_object_owner(target) != repo)
return create_error_invalid("The given target does not belong to this repository");
target_type = git_object_type(target);
switch (target_type)
{
case GIT_OBJ_TAG:
if (git_tag_peel(&commit, (git_tag *)target) < 0)
goto cleanup;
if (git_object_type(commit) != GIT_OBJ_COMMIT) {
create_error_invalid("The given target does not resolve to a commit");
goto cleanup;
}
break;
case GIT_OBJ_COMMIT:
commit = (git_object *)target;
break;
default:
return create_error_invalid("Only git_tag and git_commit objects are valid targets.");
}
if (git_buf_joinpath(&canonical_branch_name, GIT_REFS_HEADS_DIR, branch_name) < 0)
goto cleanup;
if (git_reference_create_oid(&branch, repo, git_buf_cstr(&canonical_branch_name), git_object_id(commit), force) < 0)
goto cleanup;
git_oid_cpy(oid_out, git_reference_oid(branch));
error = 0;
cleanup:
if (target_type == GIT_OBJ_TAG)
git_object_free(commit);
git_reference_free(branch);
git_buf_free(&canonical_branch_name);
return error;
}
static int mne_git_get_tag_commit_oid(const git_oid **tag_commit_oid, git_tag* tag) {
git_object *tag_object;
int err = git_tag_peel(&tag_object, tag);
mne_check_error("git_tag_peel()", err, __FILE__, __LINE__);
const git_otype type = git_object_type(tag_object);
if (type != GIT_OBJ_COMMIT)
return MNE_GIT_TARGET_NOT_COMMIT;
*tag_commit_oid = git_object_id(tag_object);
assert(tag_commit_oid != NULL);
git_object_free(tag_object);
return MNE_GIT_OK;
}
int git_reset(
git_repository *repo,
const git_object *target,
git_reset_type reset_type)
{
git_otype target_type = GIT_OBJ_BAD;
git_object *commit = NULL;
git_index *index = NULL;
git_tree *tree = NULL;
int error = -1;
assert(repo && target);
assert(reset_type == GIT_RESET_SOFT || reset_type == GIT_RESET_MIXED);
if (git_object_owner(target) != repo)
return reset_error_invalid("The given target does not belong to this repository.");
if (reset_type == GIT_RESET_MIXED && git_repository_is_bare(repo))
return reset_error_invalid("Mixed reset is not allowed in a bare repository.");
target_type = git_object_type(target);
switch (target_type)
{
case GIT_OBJ_TAG:
if (git_tag_peel(&commit, (git_tag *)target) < 0)
goto cleanup;
if (git_object_type(commit) != GIT_OBJ_COMMIT) {
reset_error_invalid("The given target does not resolve to a commit.");
goto cleanup;
}
break;
case GIT_OBJ_COMMIT:
commit = (git_object *)target;
break;
default:
return reset_error_invalid("Only git_tag and git_commit objects are valid targets.");
}
//TODO: Check for unmerged entries
if (git_reference__update(repo, git_object_id(commit), GIT_HEAD_FILE) < 0)
goto cleanup;
if (reset_type == GIT_RESET_SOFT) {
error = 0;
goto cleanup;
}
if (git_commit_tree(&tree, (git_commit *)commit) < 0) {
giterr_set(GITERR_OBJECT, "%s - Failed to retrieve the commit tree.", ERROR_MSG);
goto cleanup;
}
if (git_repository_index(&index, repo) < 0) {
giterr_set(GITERR_OBJECT, "%s - Failed to retrieve the index.", ERROR_MSG);
goto cleanup;
}
if (git_index_read_tree(index, tree) < 0) {
giterr_set(GITERR_INDEX, "%s - Failed to update the index.", ERROR_MSG);
goto cleanup;
}
if (git_index_write(index) < 0) {
giterr_set(GITERR_INDEX, "%s - Failed to write the index.", ERROR_MSG);
goto cleanup;
}
error = 0;
cleanup:
if (target_type == GIT_OBJ_TAG)
git_object_free(commit);
git_index_free(index);
git_tree_free(tree);
return error;
}
static int add_ref(transport_local *t, const char *name)
{
const char peeled[] = "^{}";
git_remote_head *head;
git_object *obj = NULL, *target = NULL;
git_transport *transport = (git_transport *) t;
git_buf buf = GIT_BUF_INIT;
git_pkt_ref *pkt;
head = git__malloc(sizeof(git_remote_head));
GITERR_CHECK_ALLOC(head);
pkt = git__malloc(sizeof(git_pkt_ref));
GITERR_CHECK_ALLOC(pkt);
head->name = git__strdup(name);
GITERR_CHECK_ALLOC(head->name);
if (git_reference_name_to_oid(&head->oid, t->repo, name) < 0) {
git__free(head);
git__free(pkt->head.name);
git__free(pkt);
}
pkt->type = GIT_PKT_REF;
memcpy(&pkt->head, head, sizeof(git_remote_head));
git__free(head);
if (git_vector_insert(&transport->refs, pkt) < 0)
{
git__free(pkt->head.name);
git__free(pkt);
return -1;
}
/* If it's not a tag, we don't need to try to peel it */
if (git__prefixcmp(name, GIT_REFS_TAGS_DIR))
return 0;
if (git_object_lookup(&obj, t->repo, &pkt->head.oid, GIT_OBJ_ANY) < 0)
return -1;
head = NULL;
/* If it's not an annotated tag, just get out */
if (git_object_type(obj) != GIT_OBJ_TAG) {
git_object_free(obj);
return 0;
}
/* And if it's a tag, peel it, and add it to the list */
head = git__malloc(sizeof(git_remote_head));
GITERR_CHECK_ALLOC(head);
if (git_buf_join(&buf, 0, name, peeled) < 0)
return -1;
head->name = git_buf_detach(&buf);
pkt = git__malloc(sizeof(git_pkt_ref));
GITERR_CHECK_ALLOC(pkt);
pkt->type = GIT_PKT_REF;
if (git_tag_peel(&target, (git_tag *) obj) < 0)
goto on_error;
git_oid_cpy(&head->oid, git_object_id(target));
git_object_free(obj);
git_object_free(target);
memcpy(&pkt->head, head, sizeof(git_remote_head));
git__free(head);
if (git_vector_insert(&transport->refs, pkt) < 0)
return -1;
return 0;
on_error:
git_object_free(obj);
git_object_free(target);
return -1;
}
