[gnome-software] Add an outline ostree plugin that just adds remotes as sources

[Richard Hughes <rhughes src gnome org>]

commit b66acbedac5cae9be2bc02977aa81d8b5e31172e
Author: Richard Hughes <richard hughsie com>
Date:   Thu Mar 24 19:49:21 2016 +0000

    Add an outline ostree plugin that just adds remotes as sources

 configure.ac                   |   23 +++++++
 src/plugins/Makefile.am        |   12 ++++
 src/plugins/gs-plugin-ostree.c |  143 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 178 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 5d6999b..28f4e5f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -179,6 +179,28 @@ AS_IF([test "x$have_xdg_app" = "xyes"], [
 ])
 AM_CONDITIONAL(HAVE_XDG_APP, test "$have_xdg_app" != no)
 
+# ostree
+AC_ARG_ENABLE(ostree,
+              [AS_HELP_STRING([--enable-ostree],
+                              [enable ostree support [default=auto]])],,
+              enable_ostree=maybe)
+AS_IF([test "x$enable_ostree" != "xno"], [
+    PKG_CHECK_MODULES(OSTREE,
+                      [ostree-1],
+                      [have_ostree=yes],
+                      [have_ostree=no])
+], [
+    have_ostree=no
+])
+AS_IF([test "x$have_ostree" = "xyes"], [
+    AC_DEFINE(HAVE_OSTREE,1,[Build ostree support])
+], [
+    AS_IF([test "x$enable_ostree" = "xyes"], [
+          AC_MSG_ERROR([ostree support requested but 'ostree' was not found])
+    ])
+])
+AM_CONDITIONAL(HAVE_OSTREE, test "$have_ostree" != no)
+
 # Limba
 AC_ARG_ENABLE(limba,
               [AS_HELP_STRING([--enable-limba],
@@ -285,6 +307,7 @@ echo "
         Firmware support:          ${have_firmware}
         Limba support:             ${have_limba}
         XDG-APP support:           ${have_xdg_app}
+        OSTree support:            ${have_ostree}
         Steam support:             ${enable_steam}
         GNOME Shell ext. support:  ${enable_shell_extensions}
         ODRS support:              ${enable_odrs}
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
index a0f7803..d0ddf85 100644
--- a/src/plugins/Makefile.am
+++ b/src/plugins/Makefile.am
@@ -12,6 +12,7 @@ AM_CPPFLAGS =                                         \
        $(FWUPD_CFLAGS)                                 \
        $(JSON_GLIB_CFLAGS)                             \
        $(LIMBA_CFLAGS)                                 \
+       $(OSTREE_CFLAGS)                                \
        $(XDG_APP_CFLAGS)                               \
        -DBINDIR=\"$(bindir)\"                          \
        -DDATADIR=\"$(datadir)\"                        \
@@ -67,6 +68,10 @@ if HAVE_XDG_APP
 plugin_LTLIBRARIES += libgs_plugin_xdg_app.la
 endif
 
+if HAVE_OSTREE
+plugin_LTLIBRARIES += libgs_plugin_ostree.la
+endif
+
 if HAVE_LIMBA
 plugin_LTLIBRARIES += libgs_plugin_limba.la
 endif
@@ -143,6 +148,13 @@ libgs_plugin_xdg_app_la_LDFLAGS = -module -avoid-version
 libgs_plugin_xdg_app_la_CFLAGS = $(GS_PLUGIN_CFLAGS) $(WARN_CFLAGS)
 endif
 
+if HAVE_OSTREE
+libgs_plugin_ostree_la_SOURCES = gs-plugin-ostree.c
+libgs_plugin_ostree_la_LIBADD = $(GS_PLUGIN_LIBS) $(OSTREE_LIBS)
+libgs_plugin_ostree_la_LDFLAGS = -module -avoid-version
+libgs_plugin_ostree_la_CFLAGS = $(GS_PLUGIN_CFLAGS) $(WARN_CFLAGS)
+endif
+
 if HAVE_ODRS
 libgs_plugin_odrs_la_SOURCES = gs-plugin-odrs.c
 libgs_plugin_odrs_la_LIBADD = $(GS_PLUGIN_LIBS) $(JSON_GLIB_LIBS)
diff --git a/src/plugins/gs-plugin-ostree.c b/src/plugins/gs-plugin-ostree.c
new file mode 100644
index 0000000..7d4ad2b
--- /dev/null
+++ b/src/plugins/gs-plugin-ostree.c
@@ -0,0 +1,143 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2016 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 <ostree.h>
+#include <gio/gio.h>
+#include <glib/gstdio.h>
+
+#include <gs-plugin.h>
+
+#include "gs-utils.h"
+
+struct GsPluginPrivate {
+       OstreeRepo              *ostree_repo;
+};
+
+/**
+ * gs_plugin_get_name:
+ */
+const gchar *
+gs_plugin_get_name (void)
+{
+       return "ostree";
+}
+
+/**
+ * gs_plugin_initialize:
+ */
+void
+gs_plugin_initialize (GsPlugin *plugin)
+{
+       plugin->priv = GS_PLUGIN_GET_PRIVATE (GsPluginPrivate);
+
+       /* only works on OSTree */
+       if (!g_file_test ("/run/ostree-booted", G_FILE_TEST_EXISTS)) {
+               gs_plugin_set_enabled (plugin, FALSE);
+               return;
+       }
+}
+
+/**
+ * gs_plugin_destroy:
+ */
+void
+gs_plugin_destroy (GsPlugin *plugin)
+{
+       if (plugin->priv->ostree_repo != NULL)
+               g_object_unref (plugin->priv->ostree_repo);
+}
+
+/**
+ * gs_plugin_startup:
+ */
+static gboolean
+gs_plugin_startup (GsPlugin *plugin, GCancellable *cancellable, GError **error)
+{
+       /* already started */
+       if (plugin->priv->ostree_repo != NULL)
+               return TRUE;
+
+       /* open */
+       plugin->priv->ostree_repo = ostree_repo_new_default ();
+       if (!ostree_repo_open (plugin->priv->ostree_repo, cancellable, error))
+               return FALSE;
+       return TRUE;
+}
+
+/**
+ * gs_plugin_add_sources:
+ */
+gboolean
+gs_plugin_add_sources (GsPlugin *plugin,
+                      GList **list,
+                      GCancellable *cancellable,
+                      GError **error)
+{
+       guint i;
+       g_auto(GStrv) names = NULL;
+
+       /* set up plugin */
+       if (!gs_plugin_startup (plugin, cancellable, error))
+               return FALSE;
+
+       /* get all remotes */
+       names = ostree_repo_remote_list (plugin->priv->ostree_repo, NULL);
+       if (names == NULL)
+               return TRUE;
+       for (i = 0; names[i] != NULL; i++) {
+               g_autofree gchar *url = NULL;
+               g_autoptr(GsApp) app = NULL;
+
+               /* get info */
+               if (!ostree_repo_remote_get_url (plugin->priv->ostree_repo,
+                                                names[i], &url, error))
+                       return FALSE;
+
+               /* create app */
+               app = gs_app_new (names[i]);
+               gs_app_set_management_plugin (app, "ostree");
+               gs_app_set_kind (app, AS_APP_KIND_SOURCE);
+               gs_app_set_state (app, AS_APP_STATE_INSTALLED);
+               gs_app_set_url (app, AS_URL_KIND_HOMEPAGE, url);
+               gs_app_set_name (app, GS_APP_QUALITY_LOWEST, names[i]);
+       }
+
+       return TRUE;
+}
+
+/**
+ * gs_plugin_refresh:
+ */
+gboolean
+gs_plugin_refresh (GsPlugin *plugin,
+                  guint cache_age,
+                  GsPluginRefreshFlags flags,
+                  GCancellable *cancellable,
+                  GError **error)
+{
+       /* set up plugin */
+       if (!gs_plugin_startup (plugin, cancellable, error))
+               return FALSE;
+
+       return TRUE;
+}