/**
* ostree_repo_resolve_rev:
* @self: Repo
* @refspec: A refspec
* @allow_noent: Do not throw an error if refspec does not exist
* @out_rev: (out) (transfer full): A checksum,or %NULL if @allow_noent is true and it does not exist
* @error: Error
*
* Look up the given refspec, returning the checksum it references in
* the parameter @out_rev.
*/
gboolean
ostree_repo_resolve_rev (OstreeRepo *self,
const char *refspec,
gboolean allow_noent,
char **out_rev,
GError **error)
{
gboolean ret = FALSE;
g_autofree char *ret_rev = NULL;
g_return_val_if_fail (refspec != NULL, FALSE);
if (ostree_validate_checksum_string (refspec, NULL))
{
ret_rev = g_strdup (refspec);
}
else if (!ostree_repo_resolve_partial_checksum (self, refspec, &ret_rev, error))
goto out;
if (!ret_rev)
{
if (error != NULL && *error != NULL)
goto out;
if (g_str_has_suffix (refspec, "^"))
{
g_autofree char *parent_refspec = NULL;
g_autofree char *parent_rev = NULL;
g_autoptr(GVariant) commit = NULL;
parent_refspec = g_strdup (refspec);
parent_refspec[strlen(parent_refspec) - 1] = '\0';
if (!ostree_repo_resolve_rev (self, parent_refspec, allow_noent, &parent_rev, error))
goto out;
if (!ostree_repo_load_variant (self, OSTREE_OBJECT_TYPE_COMMIT, parent_rev,
&commit, error))
goto out;
if (!(ret_rev = ostree_commit_get_parent (commit)))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Commit %s has no parent", parent_rev);
goto out;
}
}
else
{
g_autofree char *remote = NULL;
g_autofree char *ref = NULL;
if (!ostree_parse_refspec (refspec, &remote, &ref, error))
goto out;
if (!resolve_refspec (self, remote, ref, allow_noent,
&ret_rev, error))
goto out;
}
}
ret = TRUE;
ot_transfer_out_value (out_rev, &ret_rev);
out:
return ret;
}
static gboolean
_ostree_repo_resolve_rev_internal (OstreeRepo *self,
const char *refspec,
gboolean allow_noent,
gboolean fallback_remote,
char **out_rev,
GError **error)
{
g_autofree char *ret_rev = NULL;
g_return_val_if_fail (refspec != NULL, FALSE);
if (ostree_validate_checksum_string (refspec, NULL))
{
ret_rev = g_strdup (refspec);
}
else if (!ostree_repo_resolve_partial_checksum (self, refspec, &ret_rev, error))
return FALSE;
if (!ret_rev)
{
if (error != NULL && *error != NULL)
return FALSE;
if (g_str_has_suffix (refspec, "^"))
{
g_autofree char *parent_refspec = NULL;
g_autofree char *parent_rev = NULL;
g_autoptr(GVariant) commit = NULL;
parent_refspec = g_strdup (refspec);
parent_refspec[strlen(parent_refspec) - 1] = '\0';
if (!ostree_repo_resolve_rev (self, parent_refspec, allow_noent, &parent_rev, error))
return FALSE;
if (!ostree_repo_load_variant (self, OSTREE_OBJECT_TYPE_COMMIT, parent_rev,
&commit, error))
return FALSE;
if (!(ret_rev = ostree_commit_get_parent (commit)))
return glnx_throw (error, "Commit %s has no parent", parent_rev);
}
else
{
g_autofree char *remote = NULL;
g_autofree char *ref = NULL;
if (!ostree_parse_refspec (refspec, &remote, &ref, error))
return FALSE;
if (!resolve_refspec (self, remote, ref, allow_noent,
fallback_remote, &ret_rev, error))
return FALSE;
}
}
ot_transfer_out_value (out_rev, &ret_rev);
return TRUE;
}
