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/*
* Copyright © 2014 Red Hat, Inc
*
* This program 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 <http://www.gnu.org/licenses/>.
*
* Authors:
* Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include <locale.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "libgsystem.h"
#include "libglnx/libglnx.h"
#include "flatpak-builtins.h"
#include "flatpak-utils.h"
static char *opt_title;
static char *opt_gpg_homedir;
static char **opt_gpg_key_ids;
static gboolean opt_prune;
static gboolean opt_generate_deltas;
static gint opt_prune_depth = -1;
static GOptionEntry options[] = {
{ "title", 0, 0, G_OPTION_ARG_STRING, &opt_title, "A nice name to use for this repository", "TITLE" },
{ "gpg-sign", 0, 0, G_OPTION_ARG_STRING_ARRAY, &opt_gpg_key_ids, "GPG Key ID to sign the summary with", "KEY-ID"},
{ "gpg-homedir", 0, 0, G_OPTION_ARG_STRING, &opt_gpg_homedir, "GPG Homedir to use when looking for keyrings", "HOMEDIR"},
{ "generate-static-deltas", 0, 0, G_OPTION_ARG_NONE, &opt_generate_deltas, "Generate delta files", NULL },
{ "prune", 0, 0, G_OPTION_ARG_NONE, &opt_prune, "Prune unused objects", NULL },
{ "prune-depth", 0, 0, G_OPTION_ARG_INT, &opt_prune_depth, "Only traverse DEPTH parents for each commit (default: -1=infinite)", "DEPTH" },
{ NULL }
};
gboolean
flatpak_builtin_build_update_repo (int argc, char **argv,
GCancellable *cancellable, GError **error)
{
g_autoptr(GOptionContext) context = NULL;
g_autoptr(GFile) repofile = NULL;
g_autoptr(OstreeRepo) repo = NULL;
const char *location;
g_autoptr(GError) my_error = NULL;
context = g_option_context_new ("LOCATION - Update repository metadata");
if (!flatpak_option_context_parse (context, options, &argc, &argv, FLATPAK_BUILTIN_FLAG_NO_DIR, NULL, cancellable, error))
return FALSE;
if (argc < 2)
return usage_error (context, "LOCATION must be specified", error);
location = argv[1];
repofile = g_file_new_for_commandline_arg (location);
repo = ostree_repo_new (repofile);
if (!ostree_repo_open (repo, cancellable, error))
return FALSE;
if (opt_title &&
!flatpak_repo_set_title (repo, opt_title, error))
return FALSE;
g_print ("Updating appstream branch\n");
if (!flatpak_repo_generate_appstream (repo, (const char **) opt_gpg_key_ids, opt_gpg_homedir, cancellable, &my_error))
{
if (g_error_matches (my_error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT))
{
g_print ("WARNING: Can't find appstream-builder, unable to update appstream branch\n");
}
else
{
g_propagate_error (error, g_steal_pointer (&my_error));
return FALSE;
}
}
if (opt_generate_deltas)
{
g_autoptr(GHashTable) all_refs = NULL;
g_autoptr(GHashTable) all_deltas_hash = NULL;
g_autoptr(GPtrArray) all_deltas = NULL;
int i;
GHashTableIter iter;
gpointer key, value;
g_autoptr(GVariantBuilder) parambuilder = NULL;
g_autoptr(GVariant) params = NULL;
parambuilder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
/* Fall back for 1 meg files */
g_variant_builder_add (parambuilder, "{sv}",
"min-fallback-size", g_variant_new_uint32 (1));
g_variant_builder_add (parambuilder, "{sv}", "verbose",
g_variant_new_boolean (TRUE));
params = g_variant_ref_sink (g_variant_builder_end (parambuilder));
if (!ostree_repo_list_static_delta_names (repo, &all_deltas,
cancellable, error))
return FALSE;
all_deltas_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
for (i = 0; i < all_deltas->len; i++)
{
g_print ("adding %s\n", (char *) g_ptr_array_index (all_deltas, i));
g_hash_table_insert (all_deltas_hash,
g_strdup (g_ptr_array_index (all_deltas, i)),
NULL);
}
if (!ostree_repo_list_refs (repo, NULL, &all_refs,
cancellable, error))
return FALSE;
g_hash_table_iter_init (&iter, all_refs);
while (g_hash_table_iter_next (&iter, &key, &value))
{
const char *ref = key;
const char *commit = value;
const char *from_parent = NULL;
g_autoptr(GVariant) variant = NULL;
g_autoptr(GVariant) parent_variant = NULL;
g_autofree char *parent_commit = NULL;
if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, commit,
&variant, NULL))
return FALSE;
parent_commit = ostree_commit_get_parent (variant);
if (parent_commit != NULL)
ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, parent_commit,
&parent_variant, NULL);
/* From empty */
g_print ("looking for %s\n", commit);
if (!g_hash_table_contains (all_deltas_hash, commit))
{
g_print ("Generating from-empty delta for %s (%s)\n", ref, commit);
if (!ostree_repo_static_delta_generate (repo, OSTREE_STATIC_DELTA_GENERATE_OPT_MAJOR,
NULL, commit, NULL,
params,
cancellable, error))
return FALSE;
}
/* Mark this one as wanted */
g_hash_table_insert (all_deltas_hash, g_strdup (commit), GINT_TO_POINTER (1));
/* From parent */
if (parent_variant != NULL)
{
from_parent = g_strdup_printf ("%s-%s", parent_commit, commit);
if (!g_hash_table_contains (all_deltas_hash, from_parent))
{
g_print ("Generating from-parent delta for %s (%s)\n", ref, from_parent);
if (!ostree_repo_static_delta_generate (repo, OSTREE_STATIC_DELTA_GENERATE_OPT_MAJOR,
parent_commit, commit, NULL,
params,
cancellable, error))
return FALSE;
}
/* Mark this one as wanted */
g_hash_table_insert (all_deltas_hash, g_strdup (from_parent), GINT_TO_POINTER (1));
}
}
}
g_print ("Updating summary\n");
if (!flatpak_repo_update (repo, (const char **) opt_gpg_key_ids, opt_gpg_homedir, cancellable, error))
return FALSE;
if (opt_prune)
{
gint n_objects_total;
gint n_objects_pruned;
guint64 objsize_total;
g_autofree char *formatted_freed_size = NULL;
if (!ostree_repo_prune (repo, OSTREE_REPO_PRUNE_FLAGS_REFS_ONLY, opt_prune_depth,
&n_objects_total, &n_objects_pruned, &objsize_total,
cancellable, error))
return FALSE;
formatted_freed_size = g_format_size_full (objsize_total, 0);
g_print ("Total objects: %u\n", n_objects_total);
if (n_objects_pruned == 0)
g_print ("No unreachable objects\n");
else
g_print ("Deleted %u objects, %s freed\n",
n_objects_pruned, formatted_freed_size);
}
return TRUE;
}
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