/*
* Starting with the reference given by `ref_name`, follows symbolic
* references until a direct reference is found and updated the OID
* on that direct reference to `oid`.
*/
int git_reference__update_terminal(
git_repository *repo,
const char *ref_name,
const git_oid *oid)
{
return reference__update_terminal(repo, ref_name, oid, 0);
}
/*
* Starting with the reference given by `ref_name`, follows symbolic
* references until a direct reference is found and updated the OID
* on that direct reference to `oid`.
*/
int git_reference__update_terminal(
git_repository *repo,
const char *ref_name,
const git_oid *oid,
const git_signature *signature,
const char *log_message)
{
return reference__update_terminal(repo, ref_name, oid, 0, signature, log_message);
}
static int reference__update_terminal(
git_repository *repo,
const char *ref_name,
const git_oid *oid,
int nesting,
const git_signature *signature,
const char *log_message)
{
git_reference *ref;
int error = 0;
if (nesting > MAX_NESTING_LEVEL) {
giterr_set(GITERR_REFERENCE, "Reference chain too deep (%d)", nesting);
return GIT_ENOTFOUND;
}
error = git_reference_lookup(&ref, repo, ref_name);
/* If we haven't found the reference at all, create a new reference. */
if (error == GIT_ENOTFOUND) {
giterr_clear();
return git_reference_create(NULL, repo, ref_name, oid, 0, signature, log_message);
}
if (error < 0)
return error;
/* If the ref is a symbolic reference, follow its target. */
if (git_reference_type(ref) == GIT_REF_SYMBOLIC) {
error = reference__update_terminal(repo, git_reference_symbolic_target(ref), oid,
nesting+1, signature, log_message);
git_reference_free(ref);
} else {
/* If we're not moving the target, don't recreate the ref */
if (0 != git_oid_cmp(git_reference_target(ref), oid))
error = git_reference_create(NULL, repo, ref_name, oid, 1, signature, log_message);
git_reference_free(ref);
}
return error;
}
