[gnome-software/wip/iainl/ubuntu-xenial] apt: Set the GError when loading the apt db

[Iain Lane <iainl src gnome org>]

commit 2a595ad07730315e7ec96fb3464b8dc4ab924fd2
Author: Iain Lane <iain orangesquash org uk>
Date:   Tue Apr 12 12:52:46 2016 +0100

    apt: Set the GError when loading the apt db

 src/plugins/gs-plugin-apt.cc |   27 ++++++++++++++++++++-------
 1 files changed, 20 insertions(+), 7 deletions(-)
---
diff --git a/src/plugins/gs-plugin-apt.cc b/src/plugins/gs-plugin-apt.cc
index 93393e4..c86ced4 100644
--- a/src/plugins/gs-plugin-apt.cc
+++ b/src/plugins/gs-plugin-apt.cc
@@ -143,11 +143,13 @@ version_newer (const gchar *v0, const gchar *v1)
        return v0 ? _system->VS->CmpVersion(v0, v1) < 0 : TRUE;
 }
 
+/* return FALSE for a fatal error */
 static gboolean
 look_at_pkg (const pkgCache::PkgIterator &P,
             pkgSourceList *list,
             pkgPolicy *policy,
-            GsPlugin *plugin)
+            GsPlugin *plugin,
+            GError **error)
 {
        pkgCache::VerIterator current = P.CurrentVer();
        pkgCache::VerIterator candidate = policy->GetCandidateVer(P);
@@ -159,7 +161,7 @@ look_at_pkg (const pkgCache::PkgIterator &P,
        PackageInfo *info;
 
        if (!candidate || !candidate.FileList ())
-               return false;
+               return TRUE;
 
        name = g_strdup (P.Name ());
        info = (PackageInfo *) g_hash_table_lookup (plugin->priv->package_info, name);
@@ -184,15 +186,21 @@ look_at_pkg (const pkgCache::PkgIterator &P,
 
        pkgCache::PkgFileIterator I = VF.File ();
 
-       if (I.IsOk () == false)
-               return _error->Error (("Package file %s is out of sync."),I.FileName ());
+       if (I.IsOk () == false) {
+               g_set_error (error,
+                            GS_PLUGIN_ERROR,
+                            GS_PLUGIN_ERROR_FAILED,
+                            ("apt DB load failed: package file %s is out of sync."), I.FileName ());
+               return FALSE;
+       }
 
        PkgF.Open (I.FileName (), FileFd::ReadOnly, FileFd::Extension);
 
        pkgTagFile TagF (&PkgF);
 
        if (TagF.Jump (Tags, current.FileList ()->Offset) == false)
-               return _error->Error ("Internal Error, Unable to parse a package record");
+               return TRUE;
+
 
        if (Tags.FindI ("Installed-Size") > 0)
                info->installed_size = Tags.FindI ("Installed-Size")*1024;
@@ -239,6 +247,10 @@ load_apt_db (GsPlugin *plugin, GError **error)
        policy = cachefile.GetPolicy();
        if (cache == NULL || _error->PendingError()) {
                _error->DumpErrors();
+               g_set_error (error,
+                            GS_PLUGIN_ERROR,
+                            GS_PLUGIN_ERROR_FAILED,
+                            "apt DB load failed: error while initialising");
                return FALSE;
        }
 
@@ -246,7 +258,8 @@ load_apt_db (GsPlugin *plugin, GError **error)
                P = grp.FindPreferredPkg();
                if (P.end())
                        continue;
-               look_at_pkg (P, list, policy, plugin);
+               if (!look_at_pkg (P, list, policy, plugin, error))
+                       return FALSE;
        }
 
        return TRUE;
@@ -454,7 +467,7 @@ gs_plugin_add_installed (GsPlugin *plugin,
                // FIXME: Since appstream marks all packages as owned by
                // PackageKit and we are replacing PackageKit we need to accept
                // those packages
-               gs_app_set_management_plugin (app, "PackageKit");
+               gs_app_set_management_plugin (app, "apt");
                gs_app_set_name (app, GS_APP_QUALITY_LOWEST, info->name);
                gs_app_add_source (app, info->name);
                gs_app_set_origin (app, origin);