Bug 1212411: fork docker images for tests; r=ahal

This also refactors the image generation to not depend on puppetagain, and to
install the latest and greatest mercurial in a verified, repeatable way.

As with centos6-build-upd, the ubuntu1204-test-upd image exists to run
'apt-get upgrade' periodically without regenerating the huge parent image.

--HG--
extra : commitid : HxYSFfIaEc
extra : rebase_source : 28dae0a30be3d6fae2c44a43601bbd336d9bbfdd

testing/docker/desktop-test/Dockerfile

@@ -0,0 +1,42 @@
+FROM          taskcluster/ubuntu1204-test-upd:20151005212801
+MAINTAINER    Jonas Finnemann Jensen <jopsen@gmail.com>
+
+# Add utilities and configuration
+COPY           dot-config                    /home/worker/.config
+COPY           dot-pulse                     /home/worker/.pulse
+COPY           bin                           /home/worker/bin
+# TODO: remove these (they should be in-tree)
+COPY           mozharness_configs            /home/worker/mozharness_configs
+# TODO: remove this when buildbot is gone
+COPY           buildprops.json               /home/worker/buildprops.json
+COPY           tc-vcs-config.yml /etc/taskcluster-vcs.yml
+
+# TODO: remove
+ADD            https://raw.githubusercontent.com/taskcluster/buildbot-step/master/buildbot_step /home/worker/bin/buildbot_step
+RUN chmod u+x /home/worker/bin/buildbot_step
+
+# TODO: remove
+ADD            https://s3-us-west-2.amazonaws.com/test-caching/packages/linux64-stackwalk /usr/local/bin/linux64-minidump_stackwalk
+RUN chmod u+x /usr/local/bin/linux64-minidump_stackwalk
+
+RUN mkdir Documents; mkdir Pictures; mkdir Music; mkdir Videos; mkdir artifacts
+
+# install a new enough npm, plus tc-vcs and tc-npm-cache
+RUN npm install -g npm@^2.0.0
+RUN npm install -g taskcluster-vcs@2.3.12
+RUN npm install -g taskcluster-npm-cache@1.1.14
+ENV PATH $PATH:/home/worker/bin
+
+# Remove once running under 'worker' user.  This is necessary for pulseaudio to start
+# XXX: change this back to worker:worker once permissions issues are resolved
+RUN            chown -R root:root /home/worker
+
+
+# TODO Re-enable worker when bug 1093833 lands
+#USER          worker
+
+# clean up
+RUN rm -Rf .cache && mkdir -p .cache
+
+# Set a default command useful for debugging
+CMD ["/bin/bash", "--login"]

testing/docker/desktop-test/REGISTRY

@@ -0,0 +1 @@
+taskcluster

testing/docker/desktop-test/VERSION

@@ -0,0 +1 @@
+0.4.0

testing/docker/desktop-test/bin/entrypoint

@@ -0,0 +1,21 @@
+#! /bin/bash -ex
+
+# This file is intended to be used as the "entrypoint" or first command in the
+# docker image. It uses "eval" so it takes place of the usual /bin/bash -c
+# <stuff> conventions you need when running a docker image. Primarily it
+# bootstraps any processes that need to run outside of mozharness (like Xvfb)
+
+# XXX: Note that all tests could be faster at smaller bit depth
+Xvfb :0 -nolisten tcp -screen 0 1600x1200x24 2>/dev/null &
+export DISPLAY=:0
+
+pulseaudio --start
+
+# Download mozharness only when $MOZHARNESS_URL is defined
+if [ ! -z "$MOZHARNESS_URL" ]; then
+  buildbot_step 'Download mozharness' wget -c $MOZHARNESS_URL && \
+    unzip -q mozharness.zip && \
+    rm mozharness.zip
+fi
+
+buildbot_step 'Running tests' $@

testing/docker/desktop-test/bin/pull_gaia.sh

@@ -0,0 +1,13 @@
+#!/bin/bash -vex
+test $GAIA_BASE_REPOSITORY # ex: https://github.com/mozilla-b2g/gaia
+test $GAIA_HEAD_REPOSITORY # ex: https://github.com/mozilla-b2g/gaia
+test $GAIA_REF # ex: master
+test $GAIA_REV # ex: master
+
+tc-vcs \
+  checkout \
+  /home/worker/gaia \
+  $GAIA_BASE_REPOSITORY \
+  $GAIA_HEAD_REPOSITORY \
+  $GAIA_REV \
+  $GAIA_REF \

testing/docker/desktop-test/buildprops.json

@@ -0,0 +1,8 @@
+{
+  "properties": {
+    "buildername": ""
+  },
+  "sourcestamp": {
+    "changes": []
+  }
+}

testing/docker/desktop-test/dot-config/pip/pip.conf

@@ -0,0 +1,4 @@
+[global]
+disable-pip-version-check = true
+trusted-host = pypi.pub.build.mozilla.org
+

testing/docker/desktop-test/dot-config/user-dirs.dirs

@@ -0,0 +1,15 @@
+# This file is written by xdg-user-dirs-update
+# If you want to change or add directories, just edit the line you're
+# interested in. All local changes will be retained on the next run
+# Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
+# homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
+# absolute path. No other format is supported.
+
+XDG_DESKTOP_DIR="$HOME/Desktop"
+XDG_DOWNLOAD_DIR="$HOME/Downloads"
+XDG_TEMPLATES_DIR="$HOME/Templates"
+XDG_PUBLICSHARE_DIR="$HOME/Public"
+XDG_DOCUMENTS_DIR="$HOME/Documents"
+XDG_MUSIC_DIR="$HOME/Music"
+XDG_PICTURES_DIR="$HOME/Pictures"
+XDG_VIDEOS_DIR="$HOME/Videos"

testing/docker/desktop-test/dot-config/user-dirs.locale

@@ -0,0 +1 @@
+en_US

testing/docker/desktop-test/dot-pulse/default.pa

@@ -0,0 +1,164 @@
+#!/usr/bin/pulseaudio -nF
+#
+# This file is part of PulseAudio.
+#
+# PulseAudio is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# PulseAudio is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with PulseAudio; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+
+# This startup script is used only if PulseAudio is started per-user
+# (i.e. not in system mode)
+
+.nofail
+
+### Load something into the sample cache
+#load-sample-lazy x11-bell /usr/share/sounds/gtk-events/activate.wav
+#load-sample-lazy pulse-hotplug /usr/share/sounds/startup3.wav
+#load-sample-lazy pulse-coldplug /usr/share/sounds/startup3.wav
+#load-sample-lazy pulse-access /usr/share/sounds/generic.wav
+
+.fail
+
+### Automatically restore the volume of streams and devices
+load-module module-device-restore
+load-module module-stream-restore
+load-module module-card-restore
+
+### Automatically augment property information from .desktop files
+### stored in /usr/share/application
+load-module module-augment-properties
+
+### Load audio drivers statically
+### (it's probably better to not load these drivers manually, but instead
+### use module-udev-detect -- see below -- for doing this automatically)
+#load-module module-alsa-sink
+#load-module module-alsa-source device=hw:1,0
+#load-module module-oss device="/dev/dsp" sink_name=output source_name=input
+#load-module module-oss-mmap device="/dev/dsp" sink_name=output source_name=input
+#load-module module-null-sink
+#load-module module-pipe-sink
+
+### Automatically load driver modules depending on the hardware available
+.ifexists module-udev-detect.so
+load-module module-udev-detect
+.else
+### Use the static hardware detection module (for systems that lack udev/hal support)
+load-module module-detect
+.endif
+
+### Automatically connect sink and source if JACK server is present
+.ifexists module-jackdbus-detect.so
+.nofail
+load-module module-jackdbus-detect
+.fail
+.endif
+
+### Automatically load driver modules for Bluetooth hardware
+# This module causes a pulseaudio startup failure on "gecko-tester"
+#.ifexists module-bluetooth-discover.so
+#load-module module-bluetooth-discover
+#.endif
+
+### Load several protocols
+.ifexists module-esound-protocol-unix.so
+load-module module-esound-protocol-unix
+.endif
+load-module module-native-protocol-unix
+
+### Network access (may be configured with paprefs, so leave this commented
+### here if you plan to use paprefs)
+#load-module module-esound-protocol-tcp
+#load-module module-native-protocol-tcp
+#load-module module-zeroconf-publish
+
+### Load the RTP receiver module (also configured via paprefs, see above)
+#load-module module-rtp-recv
+
+### Load the RTP sender module (also configured via paprefs, see above)
+#load-module module-null-sink sink_name=rtp format=s16be channels=2 rate=44100 sink_properties="device.description='RTP Multicast Sink'"
+#load-module module-rtp-send source=rtp.monitor
+
+### Load additional modules from GConf settings. This can be configured with the paprefs tool.
+### Please keep in mind that the modules configured by paprefs might conflict with manually
+### loaded modules.
+.ifexists module-gconf.so
+.nofail
+load-module module-gconf
+.fail
+.endif
+
+### Automatically restore the default sink/source when changed by the user
+### during runtime
+### NOTE: This should be loaded as early as possible so that subsequent modules
+### that look up the default sink/source get the right value
+load-module module-default-device-restore
+
+### Automatically move streams to the default sink if the sink they are
+### connected to dies, similar for sources
+load-module module-rescue-streams
+
+### Make sure we always have a sink around, even if it is a null sink.
+load-module module-always-sink
+
+### Honour intended role device property
+load-module module-intended-roles
+
+### Automatically suspend sinks/sources that become idle for too long
+load-module module-suspend-on-idle
+
+### If autoexit on idle is enabled we want to make sure we only quit
+### when no local session needs us anymore.
+# This module causes a pulseaudio startup failure on "gecko-tester"
+#.ifexists module-console-kit.so
+#load-module module-console-kit
+#.endif
+
+### Enable positioned event sounds
+load-module module-position-event-sounds
+
+### Cork music streams when a phone stream is active
+#load-module module-cork-music-on-phone
+
+### Modules to allow autoloading of filters (such as echo cancellation)
+### on demand. module-filter-heuristics tries to determine what filters
+### make sense, and module-filter-apply does the heavy-lifting of
+### loading modules and rerouting streams.
+load-module module-filter-heuristics
+load-module module-filter-apply
+
+### Load DBus protocol
+#.ifexists module-dbus-protocol.so
+#load-module module-dbus-protocol
+#.endif
+
+# X11 modules should not be started from default.pa so that one daemon
+# can be shared by multiple sessions.
+
+### Load X11 bell module
+#load-module module-x11-bell sample=bell-windowing-system
+
+### Register ourselves in the X11 session manager
+#load-module module-x11-xsmp
+
+### Publish connection data in the X11 root window
+#.ifexists module-x11-publish.so
+#.nofail
+#load-module module-x11-publish
+#.fail
+#.endif
+
+load-module module-switch-on-port-available
+
+### Make some devices default
+#set-default-sink output
+#set-default-source input

testing/docker/desktop-test/mozharness_configs/emulator_override.py

@@ -0,0 +1,4 @@
+config = {
+    "exes": {},
+    "busybox_url": ""
+}

testing/docker/desktop-test/mozharness_configs/gaia_integration_override.py

@@ -0,0 +1,4 @@
+config = {
+    "exes": {},
+    "xre_url": ""
+}

testing/docker/desktop-test/mozharness_configs/remove_executables.py

@@ -0,0 +1,6 @@
+config = {
+    # We bake this directly into the tester image now...
+    "download_minidump_stackwalk": False,
+    "minidump_stackwalk_path": "/usr/local/bin/linux64-minidump_stackwalk",
+    "exes": {}
+}

testing/docker/desktop-test/tc-vcs-config.yml

@@ -0,0 +1,40 @@
+# Default configuration used by the tc-vs tools these can be overridden by
+# passing the config you wish to use over the command line...
+git: git
+hg: hg
+
+repoCache:
+  # Repo url to clone when running repo init..
+  repoUrl: https://git.mozilla.org/external/google/gerrit/git-repo.git
+  # Version of repo to utilize...
+  repoRevision: master
+  # The root where all downloaded cache files are stored on the local machine...
+  cacheDir: '{{env.HOME}}/.tc-vcs-repo/'
+  # Name/prefixed used as part of the base url.
+  cacheName: sources/{{name}}.tar.gz
+  # Command used to upload the tarball
+  uploadTar: "curl --header 'Content-Type: application/x-tar' --header 'Content-Encoding: gzip' -X PUT --data-binary @'{{source}}' '{{url}}'"
+  # Large http get requests are often slower using nodes built in http layer so
+  # we utilize a subprocess which is responsible for fetching...
+  get: curl --connect-timeout 30 --speed-limit 500000 -L -o {{dest}} {{url}}
+  # Used to create clone tarball
+  compress: tar -czf {{dest}} {{source}}
+  # All cache urls use tar + gz this is the command used to extract those files
+  # downloaded by the "get" command.
+  extract: tar -x -z -C {{dest}} -f {{source}}
+
+cloneCache:
+  # The root where all downloaded cache files are stored on the local machine...
+  cacheDir: '{{env.HOME}}/.tc-vcs/'
+  # Command used to upload the tarball
+  uploadTar: "curl --header 'Content-Type: application/x-tar' --header 'Content-Encoding: gzip' -X PUT --data-binary @'{{source}}' '{{url}}'"
+  # Large http get requests are often slower using nodes built in http layer so
+  # we utilize a subprocess which is responsible for fetching...
+  get: curl --connect-timeout 30 --speed-limit 500000 -L -o {{dest}} {{url}}
+  # Used to create clone tarball
+  compress: tar -czf {{dest}} {{source}}
+  # All cache urls use tar + gz this is the command used to extract those files
+  # downloaded by the "get" command.
+  extract: tar -x -z --strip-components 1 -C {{dest}} -f {{source}}
+  # Name/prefixed used as part of the base url.
+  cacheName: clones/{{name}}.tar.gz

testing/docker/desktop-test/tester.env

@@ -0,0 +1,4 @@
+GAIA_REV=tip
+GAIA_REF=tip
+GAIA_BASE_REPOSITORY=https://hg.mozilla.org/integration/gaia-central
+GAIA_HEAD_REPOSITORY=https://hg.mozilla.org/integration/gaia-central

testing/docker/ubuntu1204-test-upd/Dockerfile

@@ -0,0 +1,10 @@
+FROM          taskcluster/ubuntu1204-test:0.1.0
+MAINTAINER    Dustin J. Mitchell <dustin@mozilla.com>
+
+### update to latest from upstream repositories
+# if this becomes a long list of packages, consider bumping the
+# ubunt1204-test version
+RUN apt-get update && apt-get upgrade -y --force-yes
+
+# Set a default command useful for debugging
+CMD ["/bin/bash", "--login"]

testing/docker/ubuntu1204-test-upd/REGISTRY

@@ -0,0 +1 @@
+taskcluster

testing/docker/ubuntu1204-test-upd/VERSION

@@ -0,0 +1 @@
+20151005212801

testing/docker/ubuntu1204-test/Dockerfile

@@ -0,0 +1,20 @@
+FROM          ubuntu:12.04
+MAINTAINER    Jonas Finnemann Jensen <jopsen@gmail.com>
+
+RUN useradd -d /home/worker -s /bin/bash -m worker
+WORKDIR /home/worker
+
+# install non-build specific dependencies in a single layer
+ADD           system-setup.sh   /tmp/system-setup.sh
+RUN           bash /tmp/system-setup.sh
+
+# Set variable normally configured at login, by the shells parent process, these
+# are taken from GNU su manual
+ENV           HOME          /home/worker
+ENV           SHELL         /bin/bash
+ENV           USER          worker
+ENV           LOGNAME       worker
+ENV           HOSTNAME      taskcluster-worker
+
+# Set a default command useful for debugging
+CMD ["/bin/bash", "--login"]

testing/docker/ubuntu1204-test/REGISTRY

@@ -0,0 +1 @@
+taskcluster

testing/docker/ubuntu1204-test/VERSION

@@ -0,0 +1 @@
+0.1.0

testing/docker/ubuntu1204-test/system-setup.sh

@@ -0,0 +1,204 @@
+#!/usr/bin/env bash
+
+set -ve
+
+test `whoami` == 'root'
+
+mkdir -p /setup
+cd /setup
+
+apt_packages=()
+
+apt_packages+=('alsa-base')
+apt_packages+=('alsa-utils')
+apt_packages+=('autoconf2.13')
+apt_packages+=('bluez-alsa')
+apt_packages+=('bluez-alsa:i386')
+apt_packages+=('bluez-cups')
+apt_packages+=('bluez-gstreamer')
+apt_packages+=('build-essential')
+apt_packages+=('ca-certificates')
+apt_packages+=('ccache')
+apt_packages+=('curl')
+apt_packages+=('fonts-kacst')
+apt_packages+=('fonts-kacst-one')
+apt_packages+=('fonts-liberation')
+apt_packages+=('fonts-stix')
+apt_packages+=('fonts-unfonts-core')
+apt_packages+=('fonts-unfonts-extra')
+apt_packages+=('fonts-vlgothic')
+apt_packages+=('g++-multilib')
+apt_packages+=('gcc-multilib')
+apt_packages+=('gir1.2-gnomebluetooth-1.0')
+apt_packages+=('git')
+apt_packages+=('gstreamer0.10-alsa')
+apt_packages+=('gstreamer0.10-ffmpeg')
+apt_packages+=('gstreamer0.10-plugins-bad')
+apt_packages+=('gstreamer0.10-plugins-base')
+apt_packages+=('gstreamer0.10-plugins-good')
+apt_packages+=('gstreamer0.10-plugins-ugly')
+apt_packages+=('gstreamer0.10-tools')
+apt_packages+=('libasound2-dev')
+apt_packages+=('libasound2-plugins:i386')
+apt_packages+=('libcanberra-pulse')
+apt_packages+=('libcurl4-openssl-dev')
+apt_packages+=('libdbus-1-dev')
+apt_packages+=('libdbus-glib-1-dev')
+apt_packages+=('libdrm-intel1:i386')
+apt_packages+=('libdrm-nouveau1a:i386')
+apt_packages+=('libdrm-radeon1:i386')
+apt_packages+=('libdrm2:i386')
+apt_packages+=('libexpat1:i386')
+apt_packages+=('libgconf2-dev')
+apt_packages+=('libgl1-mesa-dri')
+apt_packages+=('libgl1-mesa-dri:i386')
+apt_packages+=('libgl1-mesa-glx')
+apt_packages+=('libgl1-mesa-glx:i386')
+apt_packages+=('libglapi-mesa')
+apt_packages+=('libglapi-mesa:i386')
+apt_packages+=('libglu1-mesa')
+apt_packages+=('libglu1-mesa:i386')
+apt_packages+=('libgnome-bluetooth8')
+apt_packages+=('libgstreamer-plugins-base0.10-dev')
+apt_packages+=('libgstreamer0.10-dev')
+apt_packages+=('libgtk2.0-dev')
+apt_packages+=('libiw-dev')
+apt_packages+=('libllvm2.9')
+apt_packages+=('libllvm3.0:i386')
+apt_packages+=('libncurses5:i386')
+apt_packages+=('libnotify-dev')
+apt_packages+=('libpulse-dev')
+apt_packages+=('libpulse-mainloop-glib0:i386')
+apt_packages+=('libpulsedsp:i386')
+apt_packages+=('libsdl1.2debian:i386')
+apt_packages+=('libsox-fmt-alsa')
+apt_packages+=('libx11-xcb1:i386')
+apt_packages+=('libxdamage1:i386')
+apt_packages+=('libxfixes3:i386')
+apt_packages+=('libxt-dev')
+apt_packages+=('libxxf86vm1')
+apt_packages+=('libxxf86vm1:i386')
+apt_packages+=('llvm')
+apt_packages+=('llvm-2.9')
+apt_packages+=('llvm-2.9-dev')
+apt_packages+=('llvm-2.9-runtime')
+apt_packages+=('llvm-dev')
+apt_packages+=('llvm-runtime')
+apt_packages+=('mesa-common-dev')
+apt_packages+=('nano')
+apt_packages+=('pulseaudio')
+apt_packages+=('pulseaudio-module-X11')
+apt_packages+=('pulseaudio-module-bluetooth')
+apt_packages+=('pulseaudio-module-gconf')
+apt_packages+=('rlwrap')
+apt_packages+=('screen')
+apt_packages+=('software-properties-common')
+apt_packages+=('sudo')
+apt_packages+=('tar')
+apt_packages+=('ttf-arphic-uming')
+apt_packages+=('ttf-dejavu')
+apt_packages+=('ttf-indic-fonts-core')
+apt_packages+=('ttf-kannada-fonts')
+apt_packages+=('ttf-oriya-fonts')
+apt_packages+=('ttf-paktype')
+apt_packages+=('ttf-punjabi-fonts')
+apt_packages+=('ttf-sazanami-mincho')
+apt_packages+=('unzip')
+apt_packages+=('uuid')
+apt_packages+=('vim')
+apt_packages+=('wget')
+apt_packages+=('xvfb')
+apt_packages+=('yasm')
+apt_packages+=('zip')
+
+# Bug 1176031: need `xset` to disable screensavers
+apt_packages+=('x11-xserver-utils')
+
+# use Ubuntu's Python-2.7 (2.7.3 on Precise)
+apt_packages+=('python-dev')
+apt_packages+=('python-pip')
+
+apt-get update
+apt-get install -y --force-yes ${apt_packages[@]}
+
+# set up tooltool (temporarily)
+curl https://raw.githubusercontent.com/mozilla/build-tooltool/master/tooltool.py > /setup/tooltool.py
+tooltool_fetch() {
+    cat >manifest.tt
+    python /setup/tooltool.py fetch
+    rm manifest.tt
+}
+
+# install peep
+tooltool_fetch <<'EOF'
+[
+{
+    "size": 26912,
+    "digest": "9d730ed7852d4d217aaddda959cd5f871ef1b26dd6c513a3780bbb04a5a93a49d6b78e95c2274451a1311c10cc0a72755b269dc9af62640474e6e73a1abec370",
+    "algorithm": "sha512",
+    "filename": "peep-2.4.1.tar.gz",
+    "unpack": false
+}
+]
+EOF
+pip install peep-2.4.1.tar.gz
+
+# remaining Python utilities are installed with `peep` from upstream
+# repositories; peep verifies file integrity for us
+cat >requirements.txt <<'EOF'
+# wheel
+# sha256: 90pZQ6kAXB6Je8-H9-ivfgDAb6l3e5rWkfafn6VKh9g
+# tarball:
+# sha256: qryO8YzdvYoqnH-SvEPi_qVLEUczDWXbkg7zzpgS49w
+virtualenv==13.1.2
+
+# sha256: tQ9peOfTn-DLKY-j-j6c5B0jVnIdFV5SiPnFfl8T6ac
+mercurial==3.5
+EOF
+peep install -r requirements.txt
+
+# Install node
+tooltool_fetch <<'EOF'
+[
+{
+    "size": 5676610, 
+    "digest": "ce27b788dfd141a5ba7674332825fc136fe2c4f49a319dd19b3a87c8fffa7a97d86cbb8535661c9a68c9122719aa969fc6a8c886458a0df9fc822eec99ed130b", 
+    "algorithm": "sha512", 
+    "filename": "node-v0.10.36-linux-x64.tar.gz"
+}
+]
+
+EOF
+tar -C /usr/local -xz --strip-components 1 < node-*.tar.gz
+node -v  # verify
+
+# Install a slightly newer version of libxcb
+# See bug 975216 for the original build of these packages
+# NOTE: if you're re-creating this, the tarball contains an `update.sh` which will rebuild the repository.
+tooltool_fetch <<'EOF'
+[
+{
+    "size": 9708011, 
+    "digest": "45005c7e1fdb4839f3bb96bfdb5e448672e7e40fa3cfc22ef646e2996a541f151e88c61b8a568cc00b7fcf5cb5e98e00c4e603acb0b73f85125582fa00aae76e", 
+    "algorithm": "sha512", 
+    "filename": "xcb-repo-1.8.1-2ubuntu2.1mozilla1.tgz"
+}
+]
+EOF
+tar -zxf xcb-repo-*.tgz
+cp /etc/apt/sources.list sources.list.orig
+echo "deb file://$PWD/xcb precise all" >> /etc/apt/sources.list
+apt-get update
+apt-get -q -y --force-yes install libxcb1 libxcb-render0 libxcb-shm0 libxcb-glx0 libxcb-glx0:i386
+libxcb1_version=$(dpkg-query -s libxcb1 | grep ^Version | awk '{ print $2 }')
+[ "$libxcb1_version" = "1.8.1-2ubuntu2.1mozilla1" ] || exit 1
+cp sources.list.orig /etc/apt/sources.list
+apt-get update
+
+# clean up
+
+cd /
+rm -rf /setup ~/.ccache ~/.cache ~/.npm
+apt-get clean
+apt-get autoclean
+rm $0