int git_rebase_init(
git_rebase **out,
git_repository *repo,
const git_annotated_commit *branch,
const git_annotated_commit *upstream,
const git_annotated_commit *onto,
const git_signature *signature,
const git_rebase_options *given_opts)
{
git_rebase *rebase = NULL;
git_rebase_options opts;
git_reference *head_ref = NULL;
git_buf reflog = GIT_BUF_INIT;
git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
int error;
assert(repo && branch && (upstream || onto));
*out = NULL;
GITERR_CHECK_VERSION(given_opts, GIT_REBASE_OPTIONS_VERSION, "git_rebase_options");
if (!onto)
onto = upstream;
checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
if ((error = rebase_normalize_opts(repo, &opts, given_opts)) < 0 ||
(error = git_repository__ensure_not_bare(repo, "rebase")) < 0 ||
(error = rebase_ensure_not_in_progress(repo)) < 0 ||
(error = rebase_ensure_not_dirty(repo)) < 0)
return error;
rebase = git__calloc(1, sizeof(git_rebase));
GITERR_CHECK_ALLOC(rebase);
if ((error = rebase_init(rebase, repo, branch, upstream, onto, &opts)) < 0 ||
(error = rebase_setupfiles(rebase)) < 0 ||
(error = git_buf_printf(&reflog,
"rebase: checkout %s", rebase_onto_name(onto))) < 0 ||
(error = git_reference_create(&head_ref, repo, GIT_HEAD_FILE,
git_annotated_commit_id(onto), 1, signature, reflog.ptr)) < 0 ||
(error = git_checkout_head(repo, &checkout_opts)) < 0)
goto done;
*out = rebase;
done:
if (error < 0) {
rebase_cleanup(rebase);
git_rebase_free(rebase);
}
git_reference_free(head_ref);
git_buf_free(&reflog);
rebase_opts_free(&opts);
return error;
}
static int rebase_init_merge(
git_rebase *rebase,
git_repository *repo,
const git_annotated_commit *branch,
const git_annotated_commit *upstream,
const git_annotated_commit *onto)
{
git_reference *head_ref = NULL;
git_commit *onto_commit = NULL;
git_buf reflog = GIT_BUF_INIT;
git_buf state_path = GIT_BUF_INIT;
int error;
GIT_UNUSED(upstream);
if ((error = git_buf_joinpath(&state_path, repo->path_repository, REBASE_MERGE_DIR)) < 0)
goto done;
rebase->state_path = git_buf_detach(&state_path);
GITERR_CHECK_ALLOC(rebase->state_path);
if (branch->ref_name) {
rebase->orig_head_name = git__strdup(branch->ref_name);
GITERR_CHECK_ALLOC(rebase->orig_head_name);
} else {
rebase->head_detached = 1;
}
rebase->onto_name = git__strdup(rebase_onto_name(onto));
GITERR_CHECK_ALLOC(rebase->onto_name);
rebase->quiet = rebase->options.quiet;
git_oid_cpy(&rebase->orig_head_id, git_annotated_commit_id(branch));
git_oid_cpy(&rebase->onto_id, git_annotated_commit_id(onto));
if ((error = rebase_setupfiles(rebase)) < 0 ||
(error = git_buf_printf(&reflog,
"rebase: checkout %s", rebase_onto_name(onto))) < 0 ||
(error = git_commit_lookup(
&onto_commit, repo, git_annotated_commit_id(onto))) < 0 ||
(error = git_checkout_tree(repo,
(git_object *)onto_commit, &rebase->options.checkout_options)) < 0 ||
(error = git_reference_create(&head_ref, repo, GIT_HEAD_FILE,
git_annotated_commit_id(onto), 1, reflog.ptr)) < 0)
goto done;
done:
git_reference_free(head_ref);
git_commit_free(onto_commit);
git_buf_free(&reflog);
git_buf_free(&state_path);
return error;
}