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/* foundry-git-reference.c
*
* Copyright 2025 Christian Hergert <chergert@redhat.com>
*
* 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 2.1 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 General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include "foundry-git-autocleanups.h"
#include "foundry-git-commit-private.h"
#include "foundry-git-error.h"
#include "foundry-git-reference-private.h"
#include "foundry-git-repository-paths-private.h"
#include "foundry-util.h"
struct _FoundryGitReference
{
FoundryVcsReference parent_instance;
GMutex mutex;
git_reference *reference;
FoundryGitRepositoryPaths *paths;
};
G_DEFINE_FINAL_TYPE (FoundryGitReference, foundry_git_reference, FOUNDRY_TYPE_VCS_REFERENCE)
static char *
foundry_git_reference_dup_id (FoundryVcsReference *reference)
{
FoundryGitReference *self = FOUNDRY_GIT_REFERENCE (reference);
g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
const git_oid *oid;
if (git_reference_type (self->reference) == GIT_REFERENCE_SYMBOLIC)
return g_strdup (git_reference_symbolic_target (self->reference));
if ((oid = git_reference_target (self->reference)))
{
char str[GIT_OID_HEXSZ + 1];
git_oid_tostr (str, sizeof str, oid);
str[GIT_OID_HEXSZ] = 0;
return g_strdup (str);
}
return NULL;
}
static char *
foundry_git_reference_dup_title (FoundryVcsReference *reference)
{
FoundryGitReference *self = FOUNDRY_GIT_REFERENCE (reference);
g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
return g_strdup (git_reference_name (self->reference));
}
static gboolean
foundry_git_reference_is_symbolic (FoundryVcsReference *reference)
{
FoundryGitReference *self = FOUNDRY_GIT_REFERENCE (reference);
g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
return git_reference_type (self->reference) == GIT_REFERENCE_SYMBOLIC;
}
static DexFuture *
foundry_git_reference_resolve_thread (gpointer data)
{
FoundryGitReference *self = FOUNDRY_GIT_REFERENCE (data);
g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
if (git_reference_type (self->reference) == GIT_REFERENCE_SYMBOLIC)
{
g_autoptr(git_reference) resolved = NULL;
if (git_reference_resolve (&resolved, self->reference) != 0)
return foundry_git_reject_last_error ();
return dex_future_new_take_object (_foundry_git_reference_new (g_steal_pointer (&resolved),
foundry_git_repository_paths_ref (self->paths)));
}
return foundry_future_new_not_supported ();
}
static DexFuture *
foundry_git_reference_resolve (FoundryVcsReference *reference)
{
g_assert (FOUNDRY_IS_GIT_REFERENCE (reference));
return dex_thread_spawn ("[git-reference-resolve]",
foundry_git_reference_resolve_thread,
g_object_ref (reference),
g_object_unref);
}
static DexFuture *
foundry_git_reference_load_commit_thread (gpointer data)
{
FoundryGitReference *self = FOUNDRY_GIT_REFERENCE (data);
g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
g_autoptr(git_object) object = NULL;
git_repository *repository;
if (git_reference_peel (&object, self->reference, GIT_OBJECT_COMMIT) != 0)
return foundry_git_reject_last_error ();
repository = git_reference_owner (self->reference);
if (repository == NULL)
return foundry_git_reject_last_error ();
{
const char *workdir = git_repository_workdir (repository);
const char *git_dir = git_repository_path (repository);
g_autoptr(FoundryGitRepositoryPaths) paths = NULL;
if (workdir == NULL)
workdir = git_dir;
paths = foundry_git_repository_paths_new (git_dir, workdir);
return dex_future_new_take_object (_foundry_git_commit_new ((git_commit *)g_steal_pointer (&object),
(GDestroyNotify) git_object_free,
g_steal_pointer (&paths)));
}
}
static DexFuture *
foundry_git_reference_load_commit (FoundryVcsReference *reference)
{
g_assert (FOUNDRY_IS_GIT_REFERENCE (reference));
return dex_thread_spawn ("[git-reference-commit]",
foundry_git_reference_load_commit_thread,
g_object_ref (reference),
g_object_unref);
}
static void
foundry_git_reference_finalize (GObject *object)
{
FoundryGitReference *self = (FoundryGitReference *)object;
g_clear_pointer (&self->reference, git_reference_free);
g_clear_pointer (&self->paths, foundry_git_repository_paths_unref);
g_mutex_clear (&self->mutex);
G_OBJECT_CLASS (foundry_git_reference_parent_class)->finalize (object);
}
static void
foundry_git_reference_class_init (FoundryGitReferenceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
FoundryVcsReferenceClass *vcs_ref_class = FOUNDRY_VCS_REFERENCE_CLASS (klass);
object_class->finalize = foundry_git_reference_finalize;
vcs_ref_class->dup_id = foundry_git_reference_dup_id;
vcs_ref_class->dup_title = foundry_git_reference_dup_title;
vcs_ref_class->is_symbolic = foundry_git_reference_is_symbolic;
vcs_ref_class->resolve = foundry_git_reference_resolve;
vcs_ref_class->load_commit = foundry_git_reference_load_commit;
}
static void
foundry_git_reference_init (FoundryGitReference *self)
{
g_mutex_init (&self->mutex);
}
/**
* _foundry_git_reference_new:
* @reference: (transfer full): the git_reference to wrap
* @paths: (transfer full): the repository paths
*
* Creates a new [class@Foundry.GitReference] taking ownership of @reference.
*
* Returns: (transfer full):
*/
FoundryGitReference *
_foundry_git_reference_new (git_reference *reference,
FoundryGitRepositoryPaths *paths)
{
FoundryGitReference *self;
g_return_val_if_fail (reference != NULL, NULL);
g_return_val_if_fail (paths != NULL, NULL);
self = g_object_new (FOUNDRY_TYPE_GIT_REFERENCE, NULL);
self->reference = g_steal_pointer (&reference);
self->paths = g_steal_pointer (&paths);
return self;
}
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