[gnome-boxes] installer: Only use driver if all files are available

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 37a569105ae1d1646af54d236c08e733c65bbf7e
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Dec 10 18:32:51 2012 +0200

    installer: Only use driver if all files are available
    
    Currently if download of one of the driver files fails, we still try to
    use the driver. Lets not do that!
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689987

 src/unattended-installer.vala |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/unattended-installer.vala b/src/unattended-installer.vala
index 2a884ce..6fb858c 100644
--- a/src/unattended-installer.vala
+++ b/src/unattended-installer.vala
@@ -613,6 +613,7 @@ private class Boxes.UnattendedInstaller: InstallerMedia {
                                                             Cancellable? cancellable) throws GLib.Error {
         var downloader = Downloader.get_instance ();
 
+        var driver_files = new GLib.List<UnattendedFile> ();
         var location = driver.get_location ();
         foreach (var filename in driver.get_files ()) {
             var file_uri = location + "/" + filename;
@@ -621,9 +622,13 @@ private class Boxes.UnattendedInstaller: InstallerMedia {
 
             file = yield downloader.download (file, cached_path);
 
-            add_unattended_file (new UnattendedRawFile (this, cached_path, filename));
+            driver_files.append (new UnattendedRawFile (this, cached_path, filename));
         }
 
+        // We don't do this in above loop to ensure we have all the driver files
+        foreach (var driver_file in driver_files)
+            add_unattended_file (driver_file);
+
         foreach (var d in driver.get_devices ().get_elements ()) {
             var device = d as Device;