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/*-
* SPDX-License-Identifier: AGPL-3.0-only
* SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
*/
#include "x.h"
static int write_oid(struct bare_writer *writer, const git_oid *oid)
{
return bare_put_data(writer, oid->id, GIT_OID_RAWSZ) == BARE_ERROR_NONE ? 0 : -1;
}
int cmd_resolve_ref(git_repository *repo, struct bare_reader *reader, struct bare_writer *writer)
{
char type[32] = { 0 };
char name[4096] = { 0 };
if (bare_get_data(reader, (uint8_t *) type, sizeof(type) - 1) != BARE_ERROR_NONE) {
bare_put_uint(writer, 11);
return -1;
}
if (bare_get_data(reader, (uint8_t *) name, sizeof(name) - 1) != BARE_ERROR_NONE) {
bare_put_uint(writer, 11);
return -1;
}
git_oid oid = { 0 };
int err = 0;
if (type[0] == '\0') {
git_object *obj = NULL;
err = git_revparse_single(&obj, repo, "HEAD^{commit}");
if (err != 0) {
bare_put_uint(writer, 12);
return -1;
}
git_commit *c = (git_commit *) obj;
git_oid_cpy(&oid, git_commit_id(c));
git_commit_free(c);
} else if (strcmp(type, "commit") == 0) {
err = git_oid_fromstr(&oid, name);
if (err != 0) {
bare_put_uint(writer, 12);
return -1;
}
} else if (strcmp(type, "branch") == 0) {
char fullref[4608];
snprintf(fullref, sizeof(fullref), "refs/heads/%s", name);
git_object *obj = NULL;
err = git_revparse_single(&obj, repo, fullref);
if (err != 0) {
bare_put_uint(writer, 12);
return -1;
}
git_commit *c = (git_commit *) obj;
git_oid_cpy(&oid, git_commit_id(c));
git_commit_free(c);
} else if (strcmp(type, "tag") == 0) {
char spec[4608];
snprintf(spec, sizeof(spec), "refs/tags/%s^{commit}", name);
git_object *obj = NULL;
err = git_revparse_single(&obj, repo, spec);
if (err != 0) {
bare_put_uint(writer, 12);
return -1;
}
git_commit *c = (git_commit *) obj;
git_oid_cpy(&oid, git_commit_id(c));
git_commit_free(c);
} else {
bare_put_uint(writer, 12);
return -1;
}
bare_put_uint(writer, 0);
return write_oid(writer, &oid);
}
int cmd_list_branches(git_repository *repo, struct bare_writer *writer)
{
git_branch_iterator *it = NULL;
int err = git_branch_iterator_new(&it, repo, GIT_BRANCH_LOCAL);
if (err != 0) {
bare_put_uint(writer, 13);
return -1;
}
size_t count = 0;
git_reference *ref;
git_branch_t type;
while (git_branch_next(&ref, &type, it) == 0) {
count++;
git_reference_free(ref);
}
git_branch_iterator_free(it);
err = git_branch_iterator_new(&it, repo, GIT_BRANCH_LOCAL);
if (err != 0) {
bare_put_uint(writer, 13);
return -1;
}
bare_put_uint(writer, 0);
bare_put_uint(writer, count);
while (git_branch_next(&ref, &type, it) == 0) {
const char *name = NULL;
git_branch_name(&name, ref);
if (name == NULL)
name = "";
bare_put_data(writer, (const uint8_t *)name, strlen(name));
git_reference_free(ref);
}
git_branch_iterator_free(it);
return 0;
}
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