[gnome-builder] flatpak: reap old builds from flatpak-builder/builds

[Christian Hergert <chergert src gnome org>]

commit 49732fd0cd9c5ed28c749527c42dfee56e1a0e0e
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jan 23 13:14:45 2018 -0800

    flatpak: reap old builds from flatpak-builder/builds
    
    We want to free up disk space from old builds that aren't doing us any
    favors by lingering around. So we can reap these at startup for anything
    older than 3 days.
    
    Sometimes it's helpful to dive into the directory to see why a build fails,
    but beyond a few days, I can't justify a reason to keep them around.

 src/plugins/flatpak/gbp-flatpak-application-addin.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/src/plugins/flatpak/gbp-flatpak-application-addin.c 
b/src/plugins/flatpak/gbp-flatpak-application-addin.c
index 83719c19b..44264c8ad 100644
--- a/src/plugins/flatpak/gbp-flatpak-application-addin.c
+++ b/src/plugins/flatpak/gbp-flatpak-application-addin.c
@@ -410,6 +410,8 @@ gbp_flatpak_application_addin_load (IdeApplicationAddin *addin,
                                     IdeApplication      *application)
 {
   GbpFlatpakApplicationAddin *self = (GbpFlatpakApplicationAddin *)addin;
+  g_autoptr(DzlDirectoryReaper) reaper = NULL;
+  g_autoptr(GFile) builds_dir = NULL;
 
   IDE_ENTRY;
 
@@ -421,6 +423,19 @@ gbp_flatpak_application_addin_load (IdeApplicationAddin *addin,
   gbp_flatpak_application_addin_remove_old_repo (self, NULL, NULL);
   gbp_flatpak_application_addin_reload (self);
 
+  /*
+   * Cleanup old build data to avoid an ever-growing cache directory.
+   * Any build data older than 3 days can be wiped.
+   */
+  reaper = dzl_directory_reaper_new ();
+  builds_dir = g_file_new_build_filename (g_get_user_cache_dir (),
+                                          ide_get_program_name (),
+                                          "flatpak-builder",
+                                          "build",
+                                          NULL);
+  dzl_directory_reaper_add_directory (reaper, builds_dir, G_TIME_SPAN_DAY * 3);
+  dzl_directory_reaper_execute_async (reaper, NULL, NULL, NULL);
+
   IDE_EXIT;
 }