[gnome-software] Add a plugin to get a list of the processed offline updates

[Richard Hughes <rhughes src gnome org>]

commit 74470254b1fc4b0a2acab14f4e03aae615b0aa15
Author: Richard Hughes <richard hughsie com>
Date:   Thu Sep 12 14:59:21 2013 +0100

    Add a plugin to get a list of the processed offline updates

 src/gs-application.c                       |    1 +
 src/plugins/Makefile.am                    |    6 ++
 src/plugins/gs-plugin-packagekit-offline.c |  119 ++++++++++++++++++++++++++++
 3 files changed, 126 insertions(+), 0 deletions(-)
---
diff --git a/src/gs-application.c b/src/gs-application.c
index fcd4cb8..fddec0f 100644
--- a/src/gs-application.c
+++ b/src/gs-application.c
@@ -168,6 +168,7 @@ gs_application_startup (GApplication *application)
        gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit", TRUE);
        gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-refine", TRUE);
        gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-history", TRUE);
+       gs_plugin_loader_set_enabled (app->plugin_loader, "packagekit-offline", TRUE);
        gs_plugin_loader_set_enabled (app->plugin_loader, "appstream", TRUE);
        gs_plugin_loader_set_enabled (app->plugin_loader, "desktopdb", TRUE);
        gs_plugin_loader_set_enabled (app->plugin_loader, "datadir-apps", TRUE);
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
index d575ce0..4509ed2 100644
--- a/src/plugins/Makefile.am
+++ b/src/plugins/Makefile.am
@@ -41,6 +41,7 @@ plugin_LTLIBRARIES =                                  \
        libgs_plugin_hardcoded-screenshots.la           \
        libgs_plugin_local-ratings.la                   \
        libgs_plugin_packagekit-refine.la               \
+       libgs_plugin_packagekit-offline.la              \
        libgs_plugin_packagekit-history.la              \
        libgs_plugin_packagekit.la
 
@@ -114,6 +115,11 @@ libgs_plugin_packagekit_history_la_LIBADD = $(GS_PLUGIN_LIBS)
 libgs_plugin_packagekit_history_la_LDFLAGS = -module -avoid-version
 libgs_plugin_packagekit_history_la_CFLAGS = $(GS_PLUGIN_CFLAGS) $(WARNINGFLAGS_C)
 
+libgs_plugin_packagekit_offline_la_SOURCES = gs-plugin-packagekit-offline.c
+libgs_plugin_packagekit_offline_la_LIBADD = $(GS_PLUGIN_LIBS)
+libgs_plugin_packagekit_offline_la_LDFLAGS = -module -avoid-version
+libgs_plugin_packagekit_offline_la_CFLAGS = $(GS_PLUGIN_CFLAGS) $(WARNINGFLAGS_C)
+
 libgs_plugin_desktopdb_la_SOURCES = gs-plugin-desktopdb.c
 libgs_plugin_desktopdb_la_LIBADD = $(GS_PLUGIN_LIBS) $(PACKAGEKIT_LIBS)
 libgs_plugin_desktopdb_la_LDFLAGS = -module -avoid-version
diff --git a/src/plugins/gs-plugin-packagekit-offline.c b/src/plugins/gs-plugin-packagekit-offline.c
new file mode 100644
index 0000000..bbfc79a
--- /dev/null
+++ b/src/plugins/gs-plugin-packagekit-offline.c
@@ -0,0 +1,119 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2013 Richard Hughes <richard hughsie com>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <config.h>
+
+#include <gs-plugin.h>
+
+/**
+ * gs_plugin_get_name:
+ */
+const gchar *
+gs_plugin_get_name (void)
+{
+       return "packagekit-offline";
+}
+
+/**
+ * gs_plugin_get_priority:
+ */
+gdouble
+gs_plugin_get_priority (GsPlugin *plugin)
+{
+       return 9.5f;
+}
+
+#define PK_OFFLINE_UPDATE_RESULTS_GROUP                "PackageKit Offline Update Results"
+#define PK_OFFLINE_UPDATE_RESULTS_FILENAME     "/var/lib/PackageKit/offline-update-competed"
+
+/**
+ * gs_plugin_add_updates_historical:
+ */
+gboolean
+gs_plugin_add_updates_historical (GsPlugin *plugin,
+                                 GList **list,
+                                 GCancellable *cancellable,
+                                 GError **error)
+{
+       gboolean ret = TRUE;
+       gboolean success;
+       gchar **package_ids = NULL;
+       gchar *packages = NULL;
+       gchar **split;
+       GKeyFile *key_file = NULL;
+       GsApp *app;
+       guint i;
+
+       /* was any offline update attempted */
+       if (!g_file_test (PK_OFFLINE_UPDATE_RESULTS_FILENAME, G_FILE_TEST_EXISTS))
+               goto out;
+
+       /* open the file */
+       key_file = g_key_file_new ();
+       ret = g_key_file_load_from_file (key_file,
+                                        PK_OFFLINE_UPDATE_RESULTS_FILENAME,
+                                        G_KEY_FILE_NONE,
+                                        error);
+       if (!ret)
+               goto out;
+
+       /* only return results if successful */
+       success = g_key_file_get_boolean (key_file,
+                                         PK_OFFLINE_UPDATE_RESULTS_GROUP,
+                                         "Success",
+                                         NULL);
+       if (!success)
+               goto out;
+
+       /* get list of package-ids */
+       packages = g_key_file_get_string (key_file,
+                                         PK_OFFLINE_UPDATE_RESULTS_GROUP,
+                                         "Packages",
+                                         NULL);
+       if (packages == NULL) {
+               ret = FALSE;
+               g_set_error (error,
+                            GS_PLUGIN_ERROR,
+                            GS_PLUGIN_ERROR_NOT_SUPPORTED,
+                            "No 'Packages' in %s",
+                            PK_OFFLINE_UPDATE_RESULTS_FILENAME);
+               goto out;
+       }
+       package_ids = g_strsplit (packages, ",", -1);
+       for (i = 0; package_ids[i] != NULL; i++) {
+               app = gs_app_new (NULL);
+               split = g_strsplit (package_ids[i], ";", 4);
+               gs_app_set_source (app, split[0]);
+               gs_app_set_update_version (app, split[1]);
+               gs_app_set_management_plugin (app, "PackageKit");
+               gs_app_set_metadata (app, "PackageKit::package-id", package_ids[i]);
+               gs_app_set_state (app, GS_APP_STATE_UPDATABLE);
+               gs_app_set_kind (app, GS_APP_KIND_PACKAGE);
+               gs_plugin_add_app (list, app);
+               g_strfreev (split);
+       }
+out:
+       g_free (packages);
+       g_strfreev (package_ids);
+       if (key_file != NULL)
+               g_key_file_free (key_file);
+       return ret;
+}