~ubuntu-core-dev/update-notifier/ubuntu

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <glib.h>

#include <glib-object.h>

#include <sys/types.h>

#include <sys/wait.h>

#include <time.h>

#include "update-notifier.h"

extern gboolean DEVEL_RELEASE;

static inline void

g_debug_release(const char *msg, ...)

{

   va_list va;

   va_start(va, msg);

   g_logv("release",G_LOG_LEVEL_DEBUG, msg, va);

   va_end(va);

}

// actually show the notification

static gboolean

check_new_release(gpointer user_data)

{

   g_debug_release ("check_new_release");

   GSettings *settings = (GSettings*)user_data;

   time_t now = time(NULL);

   time_t last_check = (time_t)g_settings_get_uint(settings,

                                                   SETTINGS_KEY_LAST_RELEASE_CHECK);

   // test if we need to run

   if ( (last_check + RELEASE_UPGRADE_CHECK_WAIT) > now ) {

      g_debug_release ("release upgrade check not needed (%i > %i)", last_check + RELEASE_UPGRADE_CHECK_WAIT, now);

      return TRUE;

   }

   // run the checker

   gchar *argv[10] = { "/bin/sh", "-c", RELEASE_UPGRADE_CHECKER, };

   if (DEVEL_RELEASE) {

      g_debug_release ("running the release upgrade checker %s in devel mode", RELEASE_UPGRADE_CHECKER);

      argv[3] = "--devel-release";

      argv[4] = NULL;

   } else {

      g_debug_release ("running the release upgrade checker %s", RELEASE_UPGRADE_CHECKER);

      argv[3] = NULL;

   }

   g_spawn_async ("/", argv, NULL, 0, NULL, NULL, NULL, NULL);

   // and update the timestamp so we don't check again too soon

   g_settings_set_uint(settings, SETTINGS_KEY_LAST_RELEASE_CHECK, (guint)now);

   return TRUE;

}

gboolean

release_checker_init (UpgradeNotifier *un)

{

   g_debug_release ("release_checker_init");

   // check once at startup

   check_new_release (un->settings);

   // release upgrades happen not that frequently, we use two timers

   // check every 10 min if 48h are reached and then run 

   // "check-release-upgrade-gtk" again

   g_timeout_add_seconds (60*10, check_new_release, un->settings);

   return TRUE;

}