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/*
* Copyright © 2011 Colin Walters <walters@verbum.org>
* Copyright © 2015 Red Hat, Inc.
* Copyright © 2017 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <https://www.gnu.org/licenses/>.
*
* Authors:
* - Colin Walters <walters@verbum.org>
* - Philip Withnall <withnall@endlessm.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <glib.h>
#include <glib-object.h>
#include <stdint.h>
#include <string.h>
#include "ostree-remote.h"
#include "ostree-remote-private.h"
#include "ot-keyfile-utils.h"
/**
* SECTION:remote
*
* The #OstreeRemote structure represents the configuration for a single remote
* repository. Currently, all configuration is handled internally, and
* #OstreeRemote objects are represented by their textual name handle, or by an
* opaque pointer (which can be reference counted if needed).
*
* #OstreeRemote provides configuration for accessing a remote, but does not
* provide the results of accessing a remote, such as information about what
* refs are currently on a remote, or the commits they currently point to. Use
* #OstreeRepo in combination with an #OstreeRemote to query that information.
*
* Since: 2018.6
*/
OstreeRemote *
ostree_remote_new (const gchar *name)
{
return ostree_remote_new_dynamic (name, NULL);
}
OstreeRemote *
ostree_remote_new_dynamic (const gchar *name,
const gchar *refspec_name)
{
OstreeRemote *remote;
g_assert (name != NULL && *name != '\0');
g_assert (refspec_name == NULL || *refspec_name != '\0');
remote = g_slice_new0 (OstreeRemote);
remote->ref_count = 1;
remote->name = g_strdup (name);
remote->refspec_name = g_strdup (refspec_name);
remote->group = g_strdup_printf ("remote \"%s\"", (refspec_name != NULL) ? refspec_name : name);
remote->keyring = g_strdup_printf ("%s.trustedkeys.gpg", (refspec_name != NULL) ? refspec_name : name);
remote->options = g_key_file_new ();
return remote;
}
OstreeRemote *
ostree_remote_new_from_keyfile (GKeyFile *keyfile,
const gchar *group)
{
g_autoptr(GMatchInfo) match = NULL;
OstreeRemote *remote;
g_autofree gchar *name = NULL;
static gsize regex_initialized;
static GRegex *regex;
if (g_once_init_enter (®ex_initialized))
{
regex = g_regex_new ("^remote \"(.+)\"$", 0, 0, NULL);
g_assert (regex);
g_once_init_leave (®ex_initialized, 1);
}
/* Sanity check */
g_return_val_if_fail (g_key_file_has_group (keyfile, group), NULL);
/* If group name doesn't fit the pattern, fail. */
if (!g_regex_match (regex, group, 0, &match))
return NULL;
name = g_match_info_fetch (match, 1);
remote = ostree_remote_new (name);
ot_keyfile_copy_group (keyfile, remote->options, group);
return remote;
}
/**
* ostree_remote_ref:
* @remote: an #OstreeRemote
*
* Increase the reference count on the given @remote.
*
* Returns: (transfer full): a copy of @remote, for convenience
* Since: 2018.6
*/
OstreeRemote *
ostree_remote_ref (OstreeRemote *remote)
{
gint refcount;
g_return_val_if_fail (remote != NULL, NULL);
refcount = g_atomic_int_add (&remote->ref_count, 1);
g_assert (refcount > 0);
return remote;
}
/**
* ostree_remote_unref:
* @remote: (transfer full): an #OstreeRemote
*
* Decrease the reference count on the given @remote and free it if the
* reference count reaches 0.
*
* Since: 2018.6
*/
void
ostree_remote_unref (OstreeRemote *remote)
{
g_return_if_fail (remote != NULL);
g_return_if_fail (remote->ref_count > 0);
if (g_atomic_int_dec_and_test (&remote->ref_count))
{
g_clear_pointer (&remote->name, g_free);
g_clear_pointer (&remote->refspec_name, g_free);
g_clear_pointer (&remote->group, g_free);
g_clear_pointer (&remote->keyring, g_free);
g_clear_object (&remote->file);
g_clear_pointer (&remote->options, g_key_file_free);
g_slice_free (OstreeRemote, remote);
}
}
G_DEFINE_BOXED_TYPE(OstreeRemote, ostree_remote,
ostree_remote_ref,
ostree_remote_unref);
/**
* ostree_remote_get_name:
* @remote: an #OstreeRemote
*
* Get the human-readable name of the remote. This is what the user configured,
* if the remote was explicitly configured; and will otherwise be a stable,
* arbitrary, string.
*
* Returns: remote’s name
* Since: 2018.6
*/
const gchar *
ostree_remote_get_name (OstreeRemote *remote)
{
g_return_val_if_fail (remote != NULL, NULL);
g_return_val_if_fail (remote->ref_count > 0, NULL);
return remote->name;
}
/**
* ostree_remote_get_url:
* @remote: an #OstreeRemote
*
* Get the URL from the remote.
*
* Returns: (transfer full): the remote's URL
* Since: 2018.6
*/
gchar *
ostree_remote_get_url (OstreeRemote *remote)
{
g_return_val_if_fail (remote != NULL, NULL);
g_return_val_if_fail (remote->ref_count > 0, NULL);
return g_key_file_get_string (remote->options, remote->group, "url", NULL);
}
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