Add setup-commands/ro-apt-update

Shortcut for temporarily mounting a readonly root file system writable and run
apt-get. This allows tests to download/unpack test dependencies on older images
whose apt indexes are out of date.

LP: #1408350

2 files changed, 17 insertions, 0 deletions

diff --git a/debian/changelog b/debian/changelog
index 133a1b9..e513482 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,10 @@ autopkgtest (3.9.4) UNRELEASED; urgency=medium
   * ssh-setup/adb: Guard adb wait-for-device with a 5 min timeout.
     (LP: #1414939)
   * README.running-tests.rst: Fix mis-spelled ro-apt setup command.
+  * Add setup-commands/ro-apt-update: Shortcut for temporarily mounting a
+    readonly root file system writable and run apt-get. This allows tests to
+    download/unpack test dependencies on older images whose apt indexes are
+    out of date. (LP: #1408350)
 
  -- Martin Pitt <mpitt@debian.org>  Tue, 27 Jan 2015 13:07:32 +0100
 
diff --git a/setup-commands/ro-apt-update b/setup-commands/ro-apt-update
new file mode 100644
index 0000000..0c0403a
--- /dev/null
+++ b/setup-commands/ro-apt-update
@@ -0,0 +1,13 @@
+# This script is is part of autopkgtest
+# Copyright (C) 2015 Canonical Ltd.
+# Author: Martin Pitt <martin.pitt@ubuntu.com>
+#
+# --setup-commands script for temporarily making the root file system writable,
+# run apt-get update, and make the root fs readable again. This allows tests to
+# download/unpack test dependencies on older images whose apt indexes are out
+# of date.
+
+mount -o remount,rw /
+apt-get update || (sleep 15; apt-get update)
+mount -o remount,ro /
+