--- a/python/mozbuild/mozbuild/action/test_archive.py
+++ b/python/mozbuild/mozbuild/action/test_archive.py
@@ -365,22 +365,16 @@ ARCHIVE_FILES = {
         }
     ],
     'mozharness': [
         {
             'source': buildconfig.topsrcdir,
             'base': 'testing',
             'pattern': 'mozharness/**',
         },
-        {
-            'source': buildconfig.topsrcdir,
-            'base': 'third_party/python/virtualenv',
-            'dest': 'mozharness/third_party/python/virtualenv',
-            'pattern': '**',
-        },
     ],
     'reftest': [
         {
             'source': buildconfig.topobjdir,
             'base': '_tests',
             'pattern': 'reftest/**',
         },
         {

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/AUTHORS.txt
@@ -0,0 +1,91 @@
+Author
+------
+
+Ian Bicking
+
+Maintainers
+-----------
+
+Brian Rosner
+Carl Meyer
+Jannis Leidel
+Paul Moore
+Paul Nasrat
+Marcus Smith
+
+Contributors
+------------
+
+Alex Grönholm
+Anatoly Techtonik
+Antonio Cuni
+Antonio Valentino
+Armin Ronacher
+Barry Warsaw
+Benjamin Root
+Bradley Ayers
+Branden Rolston
+Brandon Carl
+Brian Kearns
+Cap Petschulat
+CBWhiz
+Chris Adams
+Chris McDonough
+Christos Kontas
+Christian Hudon
+Christian Stefanescu
+Christopher Nilsson
+Cliff Xuan
+Curt Micol
+Damien Nozay
+Dan Sully
+Daniel Hahler
+Daniel Holth
+David Schoonover
+Denis Costa
+Doug Hellmann
+Doug Napoleone
+Douglas Creager
+Eduard-Cristian Stefan
+Erik M. Bray
+Ethan Jucovy
+Gabriel de Perthuis
+Gunnlaugur Thor Briem
+Graham Dennis
+Greg Haskins
+Jason Penney
+Jason R. Coombs
+Jeff Hammel
+Jeremy Orem
+Jason Penney
+Jason R. Coombs
+John Kleint
+Jonathan Griffin
+Jonathan Hitchcock
+Jorge Vargas
+Josh Bronson
+Kamil Kisiel
+Kyle Gibson
+Konstantin Zemlyak
+Kumar McMillan
+Lars Francke
+Marc Abramowitz
+Mika Laitio
+Mike Hommey
+Miki Tebeka
+Philip Jenvey
+Philippe Ombredanne
+Piotr Dobrogost
+Preston Holmes
+Ralf Schmitt
+Raul Leal
+Ronny Pfannschmidt
+Satrajit Ghosh
+Sergio de Carvalho
+Stefano Rivera
+Tarek Ziadé
+Thomas Aglassinger
+Vinay Sajip
+Vitaly Babiy
+Vladimir Rutsky
+Wang Xuerui
\ No newline at end of file

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/LICENSE.txt
@@ -0,0 +1,22 @@
+Copyright (c) 2007 Ian Bicking and Contributors
+Copyright (c) 2009 Ian Bicking, The Open Planning Project
+Copyright (c) 2011-2016 The virtualenv developers
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/MANIFEST.in
@@ -0,0 +1,12 @@
+recursive-include docs *
+recursive-include tests *.py *.sh *.expected
+recursive-include virtualenv_support *.whl
+recursive-include virtualenv_embedded *
+recursive-exclude docs/_templates *
+recursive-exclude docs/_build *
+include virtualenv_support/__init__.py
+include bin/*
+include scripts/*
+include *.py
+include AUTHORS.txt
+include LICENSE.txt

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/PKG-INFO
@@ -0,0 +1,87 @@
+Metadata-Version: 1.1
+Name: virtualenv
+Version: 15.0.1
+Summary: Virtual Python Environment builder
+Home-page: https://virtualenv.pypa.io/
+Author: Jannis Leidel, Carl Meyer and Brian Rosner
+Author-email: python-virtualenv@groups.google.com
+License: MIT
+Description: Virtualenv
+        ==========
+        
+        `Mailing list <http://groups.google.com/group/python-virtualenv>`_ |
+        `Issues <https://github.com/pypa/virtualenv/issues>`_ |
+        `Github <https://github.com/pypa/virtualenv>`_ |
+        `PyPI <https://pypi.python.org/pypi/virtualenv/>`_ |
+        User IRC: #pypa
+        Dev IRC: #pypa-dev
+        
+        Introduction
+        ------------
+        
+        ``virtualenv`` is a tool to create isolated Python environments.
+        
+        The basic problem being addressed is one of dependencies and versions,
+        and indirectly permissions. Imagine you have an application that
+        needs version 1 of LibFoo, but another application requires version
+        2. How can you use both these applications?  If you install
+        everything into ``/usr/lib/python2.7/site-packages`` (or whatever your
+        platform's standard location is), it's easy to end up in a situation
+        where you unintentionally upgrade an application that shouldn't be
+        upgraded.
+        
+        Or more generally, what if you want to install an application *and
+        leave it be*?  If an application works, any change in its libraries or
+        the versions of those libraries can break the application.
+        
+        Also, what if you can't install packages into the global
+        ``site-packages`` directory?  For instance, on a shared host.
+        
+        In all these cases, ``virtualenv`` can help you. It creates an
+        environment that has its own installation directories, that doesn't
+        share libraries with other virtualenv environments (and optionally
+        doesn't access the globally installed libraries either).
+        
+        .. comment: 
+        
+        Release History
+        ===============
+        
+        15.0.1 (2016-03-17)
+        -------------------
+        
+        * Print error message when DEST_DIR exists and is a file
+        
+        * Upgrade setuptools to 20.3
+        
+        * Upgrade pip to 8.1.1.
+        
+        
+        15.0.0 (2016-03-05)
+        -------------------
+        
+        * Remove the `virtualenv-N.N` script from the package; this can no longer be
+          correctly created from a wheel installation.
+          Resolves #851, #692
+        
+        * Remove accidental runtime dependency on pip by extracting certificate in the
+          subprocess.
+        
+        * Upgrade setuptools 20.2.2.
+        
+        * Upgrade pip to 8.1.0.
+        
+        
+        `Full Changelog <https://virtualenv.pypa.io/en/latest/changes.html>`_.
+Keywords: setuptools deployment installation distutils
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.6
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/README.rst
@@ -0,0 +1,31 @@
+virtualenv
+==========
+
+A tool for creating isolated 'virtual' python environments.
+
+.. image:: https://img.shields.io/pypi/v/virtualenv.svg
+        :target: https://pypi.python.org/pypi/virtualenv
+
+.. image:: https://img.shields.io/travis/pypa/virtualenv/develop.svg
+   :target: http://travis-ci.org/pypa/virtualenv
+
+* `Installation <https://virtualenv.pypa.io/en/latest/installation.html>`_
+* `Documentation <https://virtualenv.pypa.io/>`_
+* `Changelog <https://virtualenv.pypa.io/en/latest/changes.html>`_
+* `Issues <https://github.com/pypa/virtualenv/issues>`_
+* `PyPI <https://pypi.python.org/pypi/virtualenv/>`_
+* `Github <https://github.com/pypa/virtualenv>`_
+* `User mailing list <http://groups.google.com/group/python-virtualenv>`_
+* `Dev mailing list <http://groups.google.com/group/pypa-dev>`_
+* User IRC: #pypa on Freenode.
+* Dev IRC: #pypa-dev on Freenode.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the virtualenv project's codebases, issue trackers,
+chat rooms, and mailing lists is expected to follow the
+`PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/

new file mode 100755
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/bin/rebuild-script.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+"""
+Helper script to rebuild virtualenv.py from virtualenv_support
+"""
+from __future__ import print_function
+
+import os
+import re
+import codecs
+from zlib import crc32
+
+here = os.path.dirname(__file__)
+script = os.path.join(here, '..', 'virtualenv.py')
+
+gzip = codecs.lookup('zlib')
+b64 = codecs.lookup('base64')
+
+file_regex = re.compile(
+    br'##file (.*?)\n([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*convert\("""\n(.*?)"""\)',
+    re.S)
+file_template = b'##file %(filename)s\n%(varname)s = convert("""\n%(data)s""")'
+
+def rebuild(script_path):
+    with open(script_path, 'rb') as f:
+        script_content = f.read()
+    parts = []
+    last_pos = 0
+    match = None
+    for match in file_regex.finditer(script_content):
+        parts += [script_content[last_pos:match.start()]]
+        last_pos = match.end()
+        filename, fn_decoded = match.group(1), match.group(1).decode()
+        varname = match.group(2)
+        data = match.group(3)
+
+        print('Found file %s' % fn_decoded)
+        pathname = os.path.join(here, '..', 'virtualenv_embedded', fn_decoded)
+
+        with open(pathname, 'rb') as f:
+            embedded = f.read()
+        new_crc = crc32(embedded)
+        new_data = b64.encode(gzip.encode(embedded)[0])[0]
+
+        if new_data == data:
+            print('  File up to date (crc: %s)' % new_crc)
+            parts += [match.group(0)]
+            continue
+        # Else: content has changed
+        crc = crc32(gzip.decode(b64.decode(data)[0])[0])
+        print('  Content changed (crc: %s -> %s)' %
+              (crc, new_crc))
+        new_match = file_template % {
+            b'filename': filename,
+            b'varname': varname,
+            b'data': new_data
+        }
+        parts += [new_match]
+
+    parts += [script_content[last_pos:]]
+    new_content = b''.join(parts)
+
+    if new_content != script_content:
+        print('Content updated; overwriting... ', end='')
+        with open(script_path, 'wb') as f:
+            f.write(new_content)
+        print('done.')
+    else:
+        print('No changes in content')
+    if match is None:
+        print('No variables were matched/found')
+
+if __name__ == '__main__':
+    rebuild(script)

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/Makefile
@@ -0,0 +1,130 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	-rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/django-compressor.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/django-compressor.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/django-compressor"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/django-compressor"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	make -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/changes.rst
@@ -0,0 +1,985 @@
+Release History
+===============
+
+15.0.1 (2016-03-17)
+-------------------
+
+* Print error message when DEST_DIR exists and is a file
+
+* Upgrade setuptools to 20.3
+
+* Upgrade pip to 8.1.1.
+
+
+15.0.0 (2016-03-05)
+-------------------
+
+* Remove the `virtualenv-N.N` script from the package; this can no longer be
+  correctly created from a wheel installation.
+  Resolves :issue:`851`, :issue:`692`
+
+* Remove accidental runtime dependency on pip by extracting certificate in the
+  subprocess.
+
+* Upgrade setuptools 20.2.2.
+
+* Upgrade pip to 8.1.0.
+
+
+14.0.6 (2016-02-07)
+-------------------
+
+* Upgrade setuptools to 20.0
+
+* Upgrade wheel to 0.29.0
+
+* Fix an error where virtualenv didn't pass in a working ssl certificate for
+  pip, causing "weird" errors related to ssl.
+
+
+14.0.5 (2016-02-01)
+-------------------
+
+* Homogenize drive letter casing for both prefixes and filenames. :issue:`858`
+
+
+14.0.4 (2016-01-31)
+-------------------
+
+* Upgrade setuptools to 19.6.2
+
+* Revert ac4ea65; only correct drive letter case.
+  Fixes :issue:`856`, :issue:`815`
+
+
+14.0.3 (2016-01-28)
+-------------------
+
+* Upgrade setuptools to 19.6.1
+
+
+14.0.2 (2016-01-28)
+-------------------
+
+* Upgrade setuptools to 19.6
+
+* Suppress any errors from `unset` on different shells (:pull:`843`)
+
+* Normalize letter case for prefix path checking. Fixes :issue:`837`
+
+
+14.0.1 (2016-01-21)
+-------------------
+
+* Upgrade from pip 8.0.0 to 8.0.2.
+
+* Fix the default of ``--(no-)download`` to default to downloading.
+
+
+14.0.0 (2016-01-19)
+-------------------
+
+* **BACKWARDS INCOMPATIBLE** Drop support for Python 3.2.
+
+* Upgrade setuptools to 19.4
+
+* Upgrade wheel to 0.26.0
+
+* Upgrade pip to 8.0.0
+
+* Upgrade argparse to 1.4.0
+
+* Added support for ``python-config`` script (:pull:`798`)
+
+* Updated activate.fish (:pull:`589`) (:pull:`799`)
+
+* Account for a ``site.pyo`` correctly in some python implementations (:pull:`759`)
+
+* Properly restore an empty PS1 (:issue:`407`)
+
+* Properly remove ``pydoc`` when deactivating
+
+* Remove workaround for very old Mageia / Mandriva linuxes (:pull:`472`)
+
+* Added a space after virtualenv name in the prompt: ``(env) $PS1``
+
+* Make sure not to run a --user install when creating the virtualenv (:pull:`803`)
+
+* Remove virtualenv.py's path from sys.path when executing with a new
+  python. Fixes issue :issue:`779`, :issue:`763` (:pull:`805`)
+
+* Remove use of () in .bat files so ``Program Files (x86)`` works :issue:`35`
+
+* Download new releases of the preinstalled software from PyPI when there are
+  new releases available. This behavior can be disabled using
+  ``--no-download``.
+
+* Make ``--no-setuptools``, ``--no-pip``, and ``--no-wheel`` independent of
+  each other.
+
+
+13.1.2 (2015-08-23)
+-------------------
+
+* Upgrade pip to 7.1.2.
+
+
+13.1.1 (2015-08-20)
+-------------------
+
+* Upgrade pip to 7.1.1.
+
+* Upgrade setuptools to 18.2.
+
+* Make the activate script safe to use when bash is running with ``-u``.
+
+
+13.1.0 (2015-06-30)
+-------------------
+
+* Upgrade pip to 7.1.0
+
+* Upgrade setuptools to 18.0.1
+
+
+13.0.3 (2015-06-01)
+-------------------
+
+* Upgrade pip to 7.0.3
+
+
+13.0.2 (2015-06-01)
+-------------------
+
+* Upgrade pip to 7.0.2
+
+* Upgrade setuptools to 17.0
+
+
+13.0.1 (2015-05-22)
+-------------------
+
+* Upgrade pip to 7.0.1
+
+
+13.0.0 (2015-05-21)
+-------------------
+
+* Automatically install wheel when creating a new virutalenv. This can be
+  disabled by using the ``--no-wheel`` option.
+
+* Don't trust the current directory as a location to discover files to install
+  packages from.
+
+* Upgrade setuptools to 16.0.
+
+* Upgrade pip to 7.0.0.
+
+
+12.1.1 (2015-04-07)
+-------------------
+
+* Upgrade pip to 6.1.1
+
+
+12.1.0 (2015-04-07)
+-------------------
+
+* Upgrade setuptools to 15.0
+
+* Upgrade pip to 6.1.0
+
+
+12.0.7 (2015-02-04)
+-------------------
+
+* Upgrade pip to 6.0.8
+
+
+12.0.6 (2015-01-28)
+-------------------
+
+* Upgrade pip to 6.0.7
+
+* Upgrade setuptools to 12.0.5
+
+
+12.0.5 (2015-01-03)
+-------------------
+
+* Upgrade pip to 6.0.6
+
+* Upgrade setuptools to 11.0
+
+
+12.0.4 (2014-12-23)
+-------------------
+
+* Revert the fix to ``-p`` on Debian based pythons as it was broken in other
+  situations.
+
+* Revert several sys.path changes new in 12.0 which were breaking virtualenv.
+
+12.0.3 (2014-12-23)
+-------------------
+
+* Fix an issue where Debian based Pythons would fail when using -p with the
+  host Python.
+
+* Upgrade pip to 6.0.3
+
+12.0.2 (2014-12-23)
+-------------------
+
+* Upgraded pip to 6.0.2
+
+12.0.1 (2014-12-22)
+-------------------
+
+* Upgraded pip to 6.0.1
+
+
+12.0 (2014-12-22)
+-----------------
+
+* **PROCESS** Version numbers are now simply ``X.Y`` where the leading ``1``
+  has been dropped.
+* Split up documentation into structured pages
+* Now using pytest framework
+* Correct sys.path ordering for debian, issue #461
+* Correctly throws error on older Pythons, issue #619
+* Allow for empty $PATH, pull #601
+* Don't set prompt if $env:VIRTUAL_ENV_DISABLE_PROMPT is set for Powershell
+* Updated setuptools to 7.0
+
+1.11.6 (2014-05-16)
+-------------------
+
+* Updated setuptools to 3.6
+* Updated pip to 1.5.6
+
+1.11.5 (2014-05-03)
+-------------------
+
+* Updated setuptools to 3.4.4
+* Updated documentation to use https://virtualenv.pypa.io/
+* Updated pip to 1.5.5
+
+1.11.4 (2014-02-21)
+-------------------
+
+* Updated pip to 1.5.4
+
+
+1.11.3 (2014-02-20)
+-------------------
+
+* Updated setuptools to 2.2
+* Updated pip to 1.5.3
+
+
+1.11.2 (2014-01-26)
+-------------------
+
+* Fixed easy_install installed virtualenvs by updated pip to 1.5.2
+
+1.11.1 (2014-01-20)
+-------------------
+
+* Fixed an issue where pip and setuptools were not getting installed when using
+  the ``--system-site-packages`` flag.
+* Updated setuptools to fix an issue when installed with easy_install
+* Fixed an issue with Python 3.4 and sys.stdout encoding being set to ascii
+* Upgraded pip to v1.5.1
+* Upgraded setuptools to v2.1
+
+1.11 (2014-01-02)
+-----------------
+
+* **BACKWARDS INCOMPATIBLE** Switched to using wheels for the bundled copies of
+  setuptools and pip. Using sdists is no longer supported - users supplying
+  their own versions of pip/setuptools will need to provide wheels.
+* **BACKWARDS INCOMPATIBLE** Modified the handling of ``--extra-search-dirs``.
+  This option now works like pip's ``--find-links`` option, in that it adds
+  extra directories to search for compatible wheels for pip and setuptools.
+  The actual wheel selected is chosen based on version and compatibility, using
+  the same algorithm as ``pip install setuptools``.
+* Fixed #495, --always-copy was failing (#PR 511)
+* Upgraded pip to v1.5
+* Upgraded setuptools to v1.4
+
+1.10.1 (2013-08-07)
+-------------------
+
+* **New Signing Key** Release 1.10.1 is using a different key than normal with
+  fingerprint: 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA
+* Upgraded pip to v1.4.1
+* Upgraded setuptools to v0.9.8
+
+
+1.10 (2013-07-23)
+-----------------
+
+* **BACKWARDS INCOMPATIBLE** Dropped support for Python 2.5. The minimum
+  supported Python version is now Python 2.6.
+
+* **BACKWARDS INCOMPATIBLE** Using ``virtualenv.py`` as an isolated script
+  (i.e. without an associated ``virtualenv_support`` directory) is no longer
+  supported for security reasons and will fail with an error.
+
+  Along with this, ``--never-download`` is now always pinned to ``True``, and
+  is only being maintained in the short term for backward compatibility
+  (Pull #412).
+
+* **IMPORTANT** Switched to the new setuptools (v0.9.7) which has been merged
+  with Distribute_ again and works for Python 2 and 3 with one codebase.
+  The ``--distribute`` and ``--setuptools`` options are now no-op.
+
+* Updated to pip 1.4.
+
+* Added support for PyPy3k
+
+* Added the option to use a version number with the ``-p`` option to get the
+  system copy of that Python version (Windows only)
+
+* Removed embedded ``ez_setup.py``, ``distribute_setup.py`` and
+  ``distribute_from_egg.py`` files as part of switching to merged setuptools.
+
+* Fixed ``--relocatable`` to work better on Windows.
+
+* Fixed issue with readline on Windows.
+
+.. _Distribute: https://pypi.python.org/pypi/distribute
+
+1.9.1 (2013-03-08)
+------------------
+
+* Updated to pip 1.3.1 that fixed a major backward incompatible change of
+  parsing URLs to externally hosted packages that got accidentally included
+  in pip 1.3.
+
+1.9 (2013-03-07)
+----------------
+
+* Unset VIRTUAL_ENV environment variable in deactivate.bat (Pull #364)
+* Upgraded distribute to 0.6.34.
+* Added ``--no-setuptools`` and ``--no-pip`` options (Pull #336).
+* Fixed Issue #373. virtualenv-1.8.4 was failing in cygwin (Pull #382).
+* Fixed Issue #378. virtualenv is now "multiarch" aware on debian/ubuntu (Pull #379).
+* Fixed issue with readline module path on pypy and OSX (Pull #374).
+* Made 64bit detection compatible with Python 2.5 (Pull #393).
+
+
+1.8.4 (2012-11-25)
+------------------
+
+* Updated distribute to 0.6.31. This fixes #359 (numpy install regression) on
+  UTF-8 platforms, and provides a workaround on other platforms:
+  ``PYTHONIOENCODING=utf8 pip install numpy``.
+
+* When installing virtualenv via curl, don't forget to filter out arguments
+  the distribute setup script won't understand. Fixes #358.
+
+* Added some more integration tests.
+
+* Removed the unsupported embedded setuptools egg for Python 2.4 to reduce
+  file size.
+
+1.8.3 (2012-11-21)
+------------------
+
+* Fixed readline on OS X. Thanks minrk
+
+* Updated distribute to 0.6.30 (improves our error reporting, plus new
+  distribute features and fixes). Thanks Gabriel (g2p)
+
+* Added compatibility with multiarch Python (Python 3.3 for example). Added an
+  integration test. Thanks Gabriel (g2p)
+
+* Added ability to install distribute from a user-provided egg, rather than the
+  bundled sdist, for better speed. Thanks Paul Moore.
+
+* Make the creation of lib64 symlink smarter about already-existing symlink,
+  and more explicit about full paths. Fixes #334 and #330. Thanks Jeremy Orem.
+
+* Give lib64 site-dir preference over lib on 64-bit systems, to avoid wrong
+  32-bit compiles in the venv. Fixes #328. Thanks Damien Nozay.
+
+* Fix a bug with prompt-handling in ``activate.csh`` in non-interactive csh
+  shells. Fixes #332. Thanks Benjamin Root for report and patch.
+
+* Make it possible to create a virtualenv from within a Python
+  3.3. pyvenv. Thanks Chris McDonough for the report.
+
+* Add optional --setuptools option to be able to switch to it in case
+  distribute is the default (like in Debian).
+
+1.8.2 (2012-09-06)
+------------------
+
+* Updated the included pip version to 1.2.1 to fix regressions introduced
+  there in 1.2.
+
+
+1.8.1 (2012-09-03)
+------------------
+
+* Fixed distribute version used with `--never-download`. Thanks michr for
+  report and patch.
+
+* Fix creating Python 3.3 based virtualenvs by unsetting the
+  ``__PYVENV_LAUNCHER__`` environment variable in subprocesses.
+
+
+1.8 (2012-09-01)
+----------------
+
+* **Dropped support for Python 2.4** The minimum supported Python version is
+  now Python 2.5.
+
+* Fix `--relocatable` on systems that use lib64. Fixes #78. Thanks Branden
+  Rolston.
+
+* Symlink some additional modules under Python 3. Fixes #194. Thanks Vinay
+  Sajip, Ian Clelland, and Stefan Holek for the report.
+
+* Fix ``--relocatable`` when a script uses ``__future__`` imports. Thanks
+  Branden Rolston.
+
+* Fix a bug in the config option parser that prevented setting negative
+  options with environment variables. Thanks Ralf Schmitt.
+
+* Allow setting ``--no-site-packages`` from the config file.
+
+* Use ``/usr/bin/multiarch-platform`` if available to figure out the include
+  directory. Thanks for the patch, Mika Laitio.
+
+* Fix ``install_name_tool`` replacement to work on Python 3.X.
+
+* Handle paths of users' site-packages on Mac OS X correctly when changing
+  the prefix.
+
+* Updated the embedded version of distribute to 0.6.28 and pip to 1.2.
+
+
+1.7.2 (2012-06-22)
+------------------
+
+* Updated to distribute 0.6.27.
+
+* Fix activate.fish on OS X. Fixes #8. Thanks David Schoonover.
+
+* Create a virtualenv-x.x script with the Python version when installing, so
+  virtualenv for multiple Python versions can be installed to the same
+  script location. Thanks Miki Tebeka.
+
+* Restored ability to create a virtualenv with a path longer than 78
+  characters, without breaking creation of virtualenvs with non-ASCII paths.
+  Thanks, Bradley Ayers.
+
+* Added ability to create virtualenvs without having installed Apple's
+  developers tools (using an own implementation of ``install_name_tool``).
+  Thanks Mike Hommey.
+
+* Fixed PyPy and Jython support on Windows. Thanks Konstantin Zemlyak.
+
+* Added pydoc script to ease use. Thanks Marc Abramowitz. Fixes #149.
+
+* Fixed creating a bootstrap script on Python 3. Thanks Raul Leal. Fixes #280.
+
+* Fixed inconsistency when having set the ``PYTHONDONTWRITEBYTECODE`` env var
+  with the --distribute option or the ``VIRTUALENV_USE_DISTRIBUTE`` env var.
+  ``VIRTUALENV_USE_DISTRIBUTE`` is now considered again as a legacy alias.
+
+
+1.7.1.2 (2012-02-17)
+--------------------
+
+* Fixed minor issue in `--relocatable`. Thanks, Cap Petschulat.
+
+
+1.7.1.1 (2012-02-16)
+--------------------
+
+* Bumped the version string in ``virtualenv.py`` up, too.
+
+* Fixed rST rendering bug of long description.
+
+
+1.7.1 (2012-02-16)
+------------------
+
+* Update embedded pip to version 1.1.
+
+* Fix `--relocatable` under Python 3. Thanks Doug Hellmann.
+
+* Added environ PATH modification to activate_this.py. Thanks Doug
+  Napoleone. Fixes #14.
+
+* Support creating virtualenvs directly from a Python build directory on
+  Windows. Thanks CBWhiz. Fixes #139.
+
+* Use non-recursive symlinks to fix things up for posix_local install
+  scheme. Thanks michr.
+
+* Made activate script available for use with msys and cygwin on Windows.
+  Thanks Greg Haskins, Cliff Xuan, Jonathan Griffin and Doug Napoleone.
+  Fixes #176.
+
+* Fixed creation of virtualenvs on Windows when Python is not installed for
+  all users. Thanks Anatoly Techtonik for report and patch and Doug
+  Napoleone for testing and confirmation. Fixes #87.
+
+* Fixed creation of virtualenvs using -p in installs where some modules
+  that ought to be in the standard library (e.g. `readline`) are actually
+  installed in `site-packages` next to `virtualenv.py`. Thanks Greg Haskins
+  for report and fix. Fixes #167.
+
+* Added activation script for Powershell (signed by Jannis Leidel). Many
+  thanks to Jason R. Coombs.
+
+
+1.7 (2011-11-30)
+----------------
+
+* Gave user-provided ``--extra-search-dir`` priority over default dirs for
+  finding setuptools/distribute (it already had priority for finding pip).
+  Thanks Ethan Jucovy.
+
+* Updated embedded Distribute release to 0.6.24. Thanks Alex Gronholm.
+
+* Made ``--no-site-packages`` behavior the default behavior.  The
+  ``--no-site-packages`` flag is still permitted, but displays a warning when
+  used. Thanks Chris McDonough.
+
+* New flag: ``--system-site-packages``; this flag should be passed to get the
+  previous default global-site-package-including behavior back.
+
+* Added ability to set command options as environment variables and options
+  in a ``virtualenv.ini`` file.
+
+* Fixed various encoding related issues with paths. Thanks Gunnlaugur Thor Briem.
+
+* Made ``virtualenv.py`` script executable.
+
+
+1.6.4 (2011-07-21)
+------------------
+
+* Restored ability to run on Python 2.4, too.
+
+
+1.6.3 (2011-07-16)
+------------------
+
+* Restored ability to run on Python < 2.7.
+
+
+1.6.2 (2011-07-16)
+------------------
+
+* Updated embedded distribute release to 0.6.19.
+
+* Updated embedded pip release to 1.0.2.
+
+* Fixed #141 - Be smarter about finding pkg_resources when using the
+  non-default Python interpreter (by using the ``-p`` option).
+
+* Fixed #112 - Fixed path in docs.
+
+* Fixed #109 - Corrected doctests of a Logger method.
+
+* Fixed #118 - Fixed creating virtualenvs on platforms that use the
+  "posix_local" install scheme, such as Ubuntu with Python 2.7.
+
+* Add missing library to Python 3 virtualenvs (``_dummy_thread``).
+
+
+1.6.1 (2011-04-30)
+------------------
+
+* Start to use git-flow.
+
+* Added support for PyPy 1.5
+
+* Fixed #121 -- added sanity-checking of the -p argument. Thanks Paul Nasrat.
+
+* Added progress meter for pip installation as well as setuptools. Thanks Ethan
+  Jucovy.
+
+* Added --never-download and --search-dir options. Thanks Ethan Jucovy.
+
+
+1.6
+---
+
+* Added Python 3 support! Huge thanks to Vinay Sajip and Vitaly Babiy.
+
+* Fixed creation of virtualenvs on Mac OS X when standard library modules
+  (readline) are installed outside the standard library.
+
+* Updated bundled pip to 1.0.
+
+
+1.5.2
+-----
+
+* Moved main repository to Github: https://github.com/pypa/virtualenv
+
+* Transferred primary maintenance from Ian to Jannis Leidel, Carl Meyer and Brian Rosner
+
+* Fixed a few more pypy related bugs.
+
+* Updated bundled pip to 0.8.2.
+
+* Handed project over to new team of maintainers.
+
+* Moved virtualenv to Github at https://github.com/pypa/virtualenv
+
+
+1.5.1
+-----
+
+* Added ``_weakrefset`` requirement for Python 2.7.1.
+
+* Fixed Windows regression in 1.5
+
+
+1.5
+---
+
+* Include pip 0.8.1.
+
+* Add support for PyPy.
+
+* Uses a proper temporary dir when installing environment requirements.
+
+* Add ``--prompt`` option to be able to override the default prompt prefix.
+
+* Fix an issue with ``--relocatable`` on Windows.
+
+* Fix issue with installing the wrong version of distribute.
+
+* Add fish and csh activate scripts.
+
+
+1.4.9
+-----
+
+* Include pip 0.7.2
+
+
+1.4.8
+-----
+
+* Fix for Mac OS X Framework builds that use
+  ``--universal-archs=intel``
+
+* Fix ``activate_this.py`` on Windows.
+
+* Allow ``$PYTHONHOME`` to be set, so long as you use ``source
+  bin/activate`` it will get unset; if you leave it set and do not
+  activate the environment it will still break the environment.
+
+* Include pip 0.7.1
+
+
+1.4.7
+-----
+
+* Include pip 0.7
+
+
+1.4.6
+-----
+
+* Allow ``activate.sh`` to skip updating the prompt (by setting
+  ``$VIRTUAL_ENV_DISABLE_PROMPT``).
+
+
+1.4.5
+-----
+
+* Include pip 0.6.3
+
+* Fix ``activate.bat`` and ``deactivate.bat`` under Windows when
+  ``PATH`` contained a parenthesis
+
+
+1.4.4
+-----
+
+* Include pip 0.6.2 and Distribute 0.6.10
+
+* Create the ``virtualenv`` script even when Setuptools isn't
+  installed
+
+* Fix problem with ``virtualenv --relocate`` when ``bin/`` has
+  subdirectories (e.g., ``bin/.svn/``); from Alan Franzoni.
+
+* If you set ``$VIRTUALENV_DISTRIBUTE`` then virtualenv will use
+  Distribute by default (so you don't have to remember to use
+  ``--distribute``).
+
+
+1.4.3
+-----
+
+* Include pip 0.6.1
+
+
+1.4.2
+-----
+
+* Fix pip installation on Windows
+
+* Fix use of stand-alone ``virtualenv.py`` (and boot scripts)
+
+* Exclude ~/.local (user site-packages) from environments when using
+  ``--no-site-packages``
+
+
+1.4.1
+-----
+
+* Include pip 0.6
+
+
+1.4
+---
+
+* Updated setuptools to 0.6c11
+
+* Added the --distribute option
+
+* Fixed packaging problem of support-files
+
+
+1.3.4
+-----
+
+* Virtualenv now copies the actual embedded Python binary on
+  Mac OS X to fix a hang on Snow Leopard (10.6).
+
+* Fail more gracefully on Windows when ``win32api`` is not installed.
+
+* Fix site-packages taking precedent over Jython's ``__classpath__``
+  and also specially handle the new ``__pyclasspath__`` entry in
+  ``sys.path``.
+
+* Now copies Jython's ``registry`` file to the virtualenv if it exists.
+
+* Better find libraries when compiling extensions on Windows.
+
+* Create ``Scripts\pythonw.exe`` on Windows.
+
+* Added support for the Debian/Ubuntu
+  ``/usr/lib/pythonX.Y/dist-packages`` directory.
+
+* Set ``distutils.sysconfig.get_config_vars()['LIBDIR']`` (based on
+  ``sys.real_prefix``) which is reported to help building on Windows.
+
+* Make ``deactivate`` work on ksh
+
+* Fixes for ``--python``: make it work with ``--relocatable`` and the
+  symlink created to the exact Python version.
+
+
+1.3.3
+-----
+
+* Use Windows newlines in ``activate.bat``, which has been reported to help
+  when using non-ASCII directory names.
+
+* Fixed compatibility with Jython 2.5b1.
+
+* Added a function ``virtualenv.install_python`` for more fine-grained
+  access to what ``virtualenv.create_environment`` does.
+
+* Fix `a problem <https://bugs.launchpad.net/virtualenv/+bug/241581>`_
+  with Windows and paths that contain spaces.
+
+* If ``/path/to/env/.pydistutils.cfg`` exists (or
+  ``/path/to/env/pydistutils.cfg`` on Windows systems) then ignore
+  ``~/.pydistutils.cfg`` and use that other file instead.
+
+* Fix ` a problem
+  <https://bugs.launchpad.net/virtualenv/+bug/340050>`_ picking up
+  some ``.so`` libraries in ``/usr/local``.
+
+
+1.3.2
+-----
+
+* Remove the ``[install] prefix = ...`` setting from the virtualenv
+  ``distutils.cfg`` -- this has been causing problems for a lot of
+  people, in rather obscure ways.
+
+* If you use a boot script it will attempt to import ``virtualenv``
+  and find a pre-downloaded Setuptools egg using that.
+
+* Added platform-specific paths, like ``/usr/lib/pythonX.Y/plat-linux2``
+
+
+1.3.1
+-----
+
+* Real Python 2.6 compatibility.  Backported the Python 2.6 updates to
+  ``site.py``, including `user directories
+  <http://docs.python.org/dev/whatsnew/2.6.html#pep-370-per-user-site-packages-directory>`_
+  (this means older versions of Python will support user directories,
+  whether intended or not).
+
+* Always set ``[install] prefix`` in ``distutils.cfg`` -- previously
+  on some platforms where a system-wide ``distutils.cfg`` was present
+  with a ``prefix`` setting, packages would be installed globally
+  (usually in ``/usr/local/lib/pythonX.Y/site-packages``).
+
+* Sometimes Cygwin seems to leave ``.exe`` off ``sys.executable``; a
+  workaround is added.
+
+* Fix ``--python`` option.
+
+* Fixed handling of Jython environments that use a
+  jython-complete.jar.
+
+
+1.3
+---
+
+* Update to Setuptools 0.6c9
+* Added an option ``virtualenv --relocatable EXISTING_ENV``, which
+  will make an existing environment "relocatable" -- the paths will
+  not be absolute in scripts, ``.egg-info`` and ``.pth`` files.  This
+  may assist in building environments that can be moved and copied.
+  You have to run this *after* any new packages installed.
+* Added ``bin/activate_this.py``, a file you can use like
+  ``execfile("path_to/activate_this.py",
+  dict(__file__="path_to/activate_this.py"))`` -- this will activate
+  the environment in place, similar to what `the mod_wsgi example
+  does <http://code.google.com/p/modwsgi/wiki/VirtualEnvironments>`_.
+* For Mac framework builds of Python, the site-packages directory
+  ``/Library/Python/X.Y/site-packages`` is added to ``sys.path``, from
+  Andrea Rech.
+* Some platform-specific modules in Macs are added to the path now
+  (``plat-darwin/``, ``plat-mac/``, ``plat-mac/lib-scriptpackages``),
+  from Andrea Rech.
+* Fixed a small Bashism in the ``bin/activate`` shell script.
+* Added ``__future__`` to the list of required modules, for Python
+  2.3.  You'll still need to backport your own ``subprocess`` module.
+* Fixed the ``__classpath__`` entry in Jython's ``sys.path`` taking
+  precedent over virtualenv's libs.
+
+
+1.2
+---
+
+* Added a ``--python`` option to select the Python interpreter.
+* Add ``warnings`` to the modules copied over, for Python 2.6 support.
+* Add ``sets`` to the module copied over for Python 2.3 (though Python
+  2.3 still probably doesn't work).
+
+
+1.1.1
+-----
+
+* Added support for Jython 2.5.
+
+
+1.1
+---
+
+* Added support for Python 2.6.
+* Fix a problem with missing ``DLLs/zlib.pyd`` on Windows.  Create
+* ``bin/python`` (or ``bin/python.exe``) even when you run virtualenv
+  with an interpreter named, e.g., ``python2.4``
+* Fix MacPorts Python
+* Added --unzip-setuptools option
+* Update to Setuptools 0.6c8
+* If the current directory is not writable, run ez_setup.py in ``/tmp``
+* Copy or symlink over the ``include`` directory so that packages will
+  more consistently compile.
+
+
+1.0
+---
+
+* Fix build on systems that use ``/usr/lib64``, distinct from
+  ``/usr/lib`` (specifically CentOS x64).
+* Fixed bug in ``--clear``.
+* Fixed typos in ``deactivate.bat``.
+* Preserve ``$PYTHONPATH`` when calling subprocesses.
+
+
+0.9.2
+-----
+
+* Fix include dir copying on Windows (makes compiling possible).
+* Include the main ``lib-tk`` in the path.
+* Patch ``distutils.sysconfig``: ``get_python_inc`` and
+  ``get_python_lib`` to point to the global locations.
+* Install ``distutils.cfg`` before Setuptools, so that system
+  customizations of ``distutils.cfg`` won't effect the installation.
+* Add ``bin/pythonX.Y`` to the virtualenv (in addition to
+  ``bin/python``).
+* Fixed an issue with Mac Framework Python builds, and absolute paths
+  (from Ronald Oussoren).
+
+
+0.9.1
+-----
+
+* Improve ability to create a virtualenv from inside a virtualenv.
+* Fix a little bug in ``bin/activate``.
+* Actually get ``distutils.cfg`` to work reliably.
+
+
+0.9
+---
+
+* Added ``lib-dynload`` and ``config`` to things that need to be
+  copied over in an environment.
+* Copy over or symlink the ``include`` directory, so that you can
+  build packages that need the C headers.
+* Include a ``distutils`` package, so you can locally update
+  ``distutils.cfg`` (in ``lib/pythonX.Y/distutils/distutils.cfg``).
+* Better avoid downloading Setuptools, and hitting PyPI on environment
+  creation.
+* Fix a problem creating a ``lib64/`` directory.
+* Should work on MacOSX Framework builds (the default Python
+  installations on Mac).  Thanks to Ronald Oussoren.
+
+
+0.8.4
+-----
+
+* Windows installs would sometimes give errors about ``sys.prefix`` that
+  were inaccurate.
+* Slightly prettier output.
+
+
+0.8.3
+-----
+
+* Added support for Windows.
+
+
+0.8.2
+-----
+
+* Give a better warning if you are on an unsupported platform (Mac
+  Framework Pythons, and Windows).
+* Give error about running while inside a workingenv.
+* Give better error message about Python 2.3.
+
+
+0.8.1
+-----
+
+Fixed packaging of the library.
+
+
+0.8
+---
+
+Initial release.  Everything is changed and new!

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/conf.py
@@ -0,0 +1,153 @@
+# -*- coding: utf-8 -*-
+#
+# Paste documentation build configuration file, created by
+# sphinx-quickstart on Tue Apr 22 22:08:49 2008.
+#
+# This file is execfile()d with the current directory set to its containing dir.
+#
+# The contents of this file are pickled, so don't put values in the namespace
+# that aren't pickleable (module imports are okay, they're removed automatically).
+#
+# All configuration values have a default value; values that are commented out
+# serve to show the default value.
+
+import os
+import sys
+
+on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+
+# If your extensions are in another directory, add it here.
+sys.path.insert(0, os.path.abspath(os.pardir))
+
+# General configuration
+# ---------------------
+
+# Add any Sphinx extension module names here, as strings. They can be extensions
+# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = ['sphinx.ext.autodoc', 'sphinx.ext.extlinks']
+
+# Add any paths that contain templates here, relative to this directory.
+#templates_path = ['_templates']
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General substitutions.
+project = 'virtualenv'
+copyright = '2007-2014, Ian Bicking, The Open Planning Project, PyPA'
+
+# The default replacements for |version| and |release|, also used in various
+# other places throughout the built documents.
+try:
+    from virtualenv import __version__
+    # The short X.Y version.
+    version = '.'.join(__version__.split('.')[:2])
+    # The full version, including alpha/beta/rc tags.
+    release = __version__
+except ImportError:
+    version = release = 'dev'
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+today_fmt = '%B %d, %Y'
+
+# List of documents that shouldn't be included in the build.
+unused_docs = []
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+extlinks = {
+    'issue': ('https://github.com/pypa/virtualenv/issues/%s', '#'),
+    'pull': ('https://github.com/pypa/virtualenv/pull/%s', 'PR #'),
+}
+
+
+# Options for HTML output
+# -----------------------
+
+# The style sheet to use for HTML and HTML Help pages. A file of that name
+# must exist either in Sphinx' static/ path, or in one of the custom paths
+# given in html_static_path.
+#html_style = 'default.css'
+
+html_theme = 'default'
+if not on_rtd:
+    try:
+        import sphinx_rtd_theme
+        html_theme = 'sphinx_rtd_theme'
+        html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+    except ImportError:
+        pass
+
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+# html_static_path = ['_static']
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Content template for the index page.
+#html_index = ''
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_use_modindex = True
+
+# If true, the reST sources are included in the HTML build as _sources/<name>.
+#html_copy_source = True
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'Pastedoc'
+
+
+# Options for LaTeX output
+# ------------------------
+
+# The paper size ('letter' or 'a4').
+#latex_paper_size = 'letter'
+
+# The font size ('10pt', '11pt' or '12pt').
+#latex_font_size = '10pt'
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, document class [howto/manual]).
+#latex_documents = []
+
+# Additional stuff for the LaTeX preamble.
+#latex_preamble = ''
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_use_modindex = True

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/development.rst
@@ -0,0 +1,61 @@
+Development
+===========
+
+Contributing
+------------
+
+Refer to the `pip development`_ documentation - it applies equally to
+virtualenv, except that virtualenv issues should filed on the `virtualenv
+repo`_ at GitHub.
+
+Virtualenv's release schedule is tied to pip's -- each time there's a new pip
+release, there will be a new virtualenv release that bundles the new version of
+pip.
+
+Files in the `virtualenv_embedded/` subdirectory are embedded into
+`virtualenv.py` itself as base64-encoded strings (in order to support
+single-file use of `virtualenv.py` without installing it). If your patch
+changes any file in `virtualenv_embedded/`, run `bin/rebuild-script.py` to
+update the embedded version of that file in `virtualenv.py`; commit that and
+submit it as part of your patch / pull request.
+
+.. _pip development: http://www.pip-installer.org/en/latest/development.html
+.. _virtualenv repo: https://github.com/pypa/virtualenv/
+
+Running the tests
+-----------------
+
+Virtualenv's test suite is small and not yet at all comprehensive, but we aim
+to grow it.
+
+The easy way to run tests (handles test dependencies automatically)::
+
+    $ python setup.py test
+
+If you want to run only a selection of the tests, you'll need to run them
+directly with pytest instead. Create a virtualenv, and install required
+packages::
+
+    $ pip install pytest mock
+
+Run pytest::
+
+    $ pytest
+
+Or select just a single test file to run::
+
+    $ pytest tests/test_virtualenv
+
+Status and License
+------------------
+
+``virtualenv`` is a successor to `workingenv
+<http://cheeseshop.python.org/pypi/workingenv.py>`_, and an extension
+of `virtual-python
+<http://peak.telecommunity.com/DevCenter/EasyInstall#creating-a-virtual-python>`_.
+
+It was written by Ian Bicking, sponsored by the `Open Planning
+Project <http://openplans.org>`_ and is now maintained by a
+`group of developers <https://github.com/pypa/virtualenv/raw/master/AUTHORS.txt>`_.
+It is licensed under an
+`MIT-style permissive license <https://github.com/pypa/virtualenv/raw/master/LICENSE.txt>`_.

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/index.rst
@@ -0,0 +1,137 @@
+Virtualenv
+==========
+
+`Mailing list <http://groups.google.com/group/python-virtualenv>`_ |
+`Issues <https://github.com/pypa/virtualenv/issues>`_ |
+`Github <https://github.com/pypa/virtualenv>`_ |
+`PyPI <https://pypi.python.org/pypi/virtualenv/>`_ |
+User IRC: #pypa
+Dev IRC: #pypa-dev
+
+Introduction
+------------
+
+``virtualenv`` is a tool to create isolated Python environments.
+
+The basic problem being addressed is one of dependencies and versions,
+and indirectly permissions. Imagine you have an application that
+needs version 1 of LibFoo, but another application requires version
+2. How can you use both these applications?  If you install
+everything into ``/usr/lib/python2.7/site-packages`` (or whatever your
+platform's standard location is), it's easy to end up in a situation
+where you unintentionally upgrade an application that shouldn't be
+upgraded.
+
+Or more generally, what if you want to install an application *and
+leave it be*?  If an application works, any change in its libraries or
+the versions of those libraries can break the application.
+
+Also, what if you can't install packages into the global
+``site-packages`` directory?  For instance, on a shared host.
+
+In all these cases, ``virtualenv`` can help you. It creates an
+environment that has its own installation directories, that doesn't
+share libraries with other virtualenv environments (and optionally
+doesn't access the globally installed libraries either).
+
+.. comment: split here
+
+.. toctree::
+   :maxdepth: 2
+
+   installation
+   userguide
+   reference
+   development
+   changes
+
+.. warning::
+
+   Python bugfix releases 2.6.8, 2.7.3, 3.1.5 and 3.2.3 include a change that
+   will cause "import random" to fail with "cannot import name urandom" on any
+   virtualenv created on a Unix host with an earlier release of Python
+   2.6/2.7/3.1/3.2, if the underlying system Python is upgraded. This is due to
+   the fact that a virtualenv uses the system Python's standard library but
+   contains its own copy of the Python interpreter, so an upgrade to the system
+   Python results in a mismatch between the version of the Python interpreter
+   and the version of the standard library. It can be fixed by removing
+   ``$ENV/bin/python`` and re-running virtualenv on the same target directory
+   with the upgraded Python.
+
+Other Documentation and Links
+-----------------------------
+
+* `Blog announcement of virtualenv`__.
+
+  .. __: http://blog.ianbicking.org/2007/10/10/workingenv-is-dead-long-live-virtualenv/
+
+* James Gardner has written a tutorial on using `virtualenv with
+  Pylons
+  <http://wiki.pylonshq.com/display/pylonscookbook/Using+a+Virtualenv+Sandbox>`_.
+
+* Chris Perkins created a `showmedo video including virtualenv
+  <http://showmedo.com/videos/video?name=2910000&fromSeriesID=291>`_.
+
+* Doug Hellmann's `virtualenvwrapper`_ is a useful set of scripts to make
+  your workflow with many virtualenvs even easier. `His initial blog post on it`__.
+  He also wrote `an example of using virtualenv to try IPython`__.
+
+  .. _virtualenvwrapper: https://pypi.python.org/pypi/virtualenvwrapper/
+  .. __: https://doughellmann.com/blog/2008/05/01/virtualenvwrapper/
+  .. __: https://doughellmann.com/blog/2008/02/01/ipython-and-virtualenv/
+
+* `Pew`_ is another wrapper for virtualenv that makes use of a different
+  activation technique.
+
+  .. _Pew: https://pypi.python.org/pypi/pew/
+
+* `Using virtualenv with mod_wsgi
+  <http://code.google.com/p/modwsgi/wiki/VirtualEnvironments>`_.
+
+* `virtualenv commands
+  <https://github.com/thisismedium/virtualenv-commands>`_ for some more
+  workflow-related tools around virtualenv.
+
+* PyCon US 2011 talk: `Reverse-engineering Ian Bicking's brain: inside pip and virtualenv
+  <http://pyvideo.org/video/568/reverse-engineering-ian-bicking--39-s-brain--insi>`_.
+  By the end of the talk, you'll have a good idea exactly how pip
+  and virtualenv do their magic, and where to go looking in the source
+  for particular behaviors or bug fixes.
+
+Compare & Contrast with Alternatives
+------------------------------------
+
+There are several alternatives that create isolated environments:
+
+* ``workingenv`` (which I do not suggest you use anymore) is the
+  predecessor to this library. It used the main Python interpreter,
+  but relied on setting ``$PYTHONPATH`` to activate the environment.
+  This causes problems when running Python scripts that aren't part of
+  the environment (e.g., a globally installed ``hg`` or ``bzr``). It
+  also conflicted a lot with Setuptools.
+
+* `virtual-python
+  <http://peak.telecommunity.com/DevCenter/EasyInstall#creating-a-virtual-python>`_
+  is also a predecessor to this library. It uses only symlinks, so it
+  couldn't work on Windows. It also symlinks over the *entire*
+  standard library and global ``site-packages``. As a result, it
+  won't see new additions to the global ``site-packages``.
+
+  This script only symlinks a small portion of the standard library
+  into the environment, and so on Windows it is feasible to simply
+  copy these files over. Also, it creates a new/empty
+  ``site-packages`` and also adds the global ``site-packages`` to the
+  path, so updates are tracked separately. This script also installs
+  Setuptools automatically, saving a step and avoiding the need for
+  network access.
+
+* `zc.buildout <http://pypi.python.org/pypi/zc.buildout>`_ doesn't
+  create an isolated Python environment in the same style, but
+  achieves similar results through a declarative config file that sets
+  up scripts with very particular packages. As a declarative system,
+  it is somewhat easier to repeat and manage, but more difficult to
+  experiment with. ``zc.buildout`` includes the ability to setup
+  non-Python systems (e.g., a database server or an Apache instance).
+
+I *strongly* recommend anyone doing application development or
+deployment use one of these tools.

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/installation.rst
@@ -0,0 +1,58 @@
+Installation
+============
+
+.. warning::
+
+    We advise installing virtualenv-1.9 or greater. Prior to version 1.9, the
+    pip included in virtualenv did not download from PyPI over SSL.
+
+.. warning::
+
+    When using pip to install virtualenv, we advise using pip 1.3 or greater.
+    Prior to version 1.3, pip did not download from PyPI over SSL.
+
+.. warning::
+
+    We advise against using easy_install to install virtualenv when using
+    setuptools < 0.9.7, because easy_install didn't download from PyPI over SSL
+    and was broken in some subtle ways.
+
+To install globally with `pip` (if you have pip 1.3 or greater installed globally):
+
+::
+
+ $ [sudo] pip install virtualenv
+
+Or to get the latest unreleased dev version:
+
+::
+
+ $ [sudo] pip install https://github.com/pypa/virtualenv/tarball/develop
+
+
+To install version X.X globally from source:
+
+::
+
+ $ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-X.X.tar.gz
+ $ tar xvfz virtualenv-X.X.tar.gz
+ $ cd virtualenv-X.X
+ $ [sudo] python setup.py install
+
+
+To *use* locally from source:
+
+::
+
+ $ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-X.X.tar.gz
+ $ tar xvfz virtualenv-X.X.tar.gz
+ $ cd virtualenv-X.X
+ $ python virtualenv.py myVE
+
+.. note::
+
+    The ``virtualenv.py`` script is *not* supported if run without the
+    necessary pip/setuptools/virtualenv distributions available locally. All
+    of the installation methods above include a ``virtualenv_support``
+    directory alongside ``virtualenv.py`` which contains a complete set of
+    pip and setuptools distributions, and so are fully supported.

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/make.bat
@@ -0,0 +1,170 @@
+@ECHO OFF
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set BUILDDIR=_build
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+if NOT "%PAPER%" == "" (
+	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
+)
+
+if "%1" == "" goto help
+
+if "%1" == "help" (
+	:help
+	echo.Please use `make ^<target^>` where ^<target^> is one of
+	echo.  html       to make standalone HTML files
+	echo.  dirhtml    to make HTML files named index.html in directories
+	echo.  singlehtml to make a single large HTML file
+	echo.  pickle     to make pickle files
+	echo.  json       to make JSON files
+	echo.  htmlhelp   to make HTML files and a HTML help project
+	echo.  qthelp     to make HTML files and a qthelp project
+	echo.  devhelp    to make HTML files and a Devhelp project
+	echo.  epub       to make an epub
+	echo.  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter
+	echo.  text       to make text files
+	echo.  man        to make manual pages
+	echo.  changes    to make an overview over all changed/added/deprecated items
+	echo.  linkcheck  to check all external links for integrity
+	echo.  doctest    to run all doctests embedded in the documentation if enabled
+	goto end
+)
+
+if "%1" == "clean" (
+	for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
+	del /q /s %BUILDDIR%\*
+	goto end
+)
+
+if "%1" == "html" (
+	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
+	goto end
+)
+
+if "%1" == "dirhtml" (
+	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
+	goto end
+)
+
+if "%1" == "singlehtml" (
+	%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
+	goto end
+)
+
+if "%1" == "pickle" (
+	%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the pickle files.
+	goto end
+)
+
+if "%1" == "json" (
+	%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the JSON files.
+	goto end
+)
+
+if "%1" == "htmlhelp" (
+	%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run HTML Help Workshop with the ^
+.hhp project file in %BUILDDIR%/htmlhelp.
+	goto end
+)
+
+if "%1" == "qthelp" (
+	%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run "qcollectiongenerator" with the ^
+.qhcp project file in %BUILDDIR%/qthelp, like this:
+	echo.^> qcollectiongenerator %BUILDDIR%\qthelp\django-compressor.qhcp
+	echo.To view the help file:
+	echo.^> assistant -collectionFile %BUILDDIR%\qthelp\django-compressor.ghc
+	goto end
+)
+
+if "%1" == "devhelp" (
+	%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished.
+	goto end
+)
+
+if "%1" == "epub" (
+	%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The epub file is in %BUILDDIR%/epub.
+	goto end
+)
+
+if "%1" == "latex" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "text" (
+	%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The text files are in %BUILDDIR%/text.
+	goto end
+)
+
+if "%1" == "man" (
+	%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The manual pages are in %BUILDDIR%/man.
+	goto end
+)
+
+if "%1" == "changes" (
+	%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.The overview file is in %BUILDDIR%/changes.
+	goto end
+)
+
+if "%1" == "linkcheck" (
+	%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Link check complete; look for any errors in the above output ^
+or in %BUILDDIR%/linkcheck/output.txt.
+	goto end
+)
+
+if "%1" == "doctest" (
+	%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of doctests in the sources finished, look at the ^
+results in %BUILDDIR%/doctest/output.txt.
+	goto end
+)
+
+:end

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/reference.rst
@@ -0,0 +1,261 @@
+Reference Guide
+===============
+
+``virtualenv`` Command
+----------------------
+
+.. _usage:
+
+Usage
+~~~~~
+
+:command:`virtualenv [OPTIONS] ENV_DIR`
+
+    Where ``ENV_DIR`` is an absolute or relative path to a directory to create
+    the virtual environment in.
+
+.. _options:
+
+Options
+~~~~~~~
+
+.. program: virtualenv
+
+.. option:: --version
+
+   show program's version number and exit
+
+.. option:: -h, --help
+
+   show this help message and exit
+
+.. option:: -v, --verbose
+
+   Increase verbosity.
+
+.. option:: -q, --quiet
+
+   Decrease verbosity.
+
+.. option:: -p PYTHON_EXE, --python=PYTHON_EXE
+
+   The Python interpreter to use, e.g.,
+   --python=python2.5 will use the python2.5 interpreter
+   to create the new environment.  The default is the
+   interpreter that virtualenv was installed with
+   (like ``/usr/bin/python``)
+
+.. option:: --clear
+
+   Clear out the non-root install and start from scratch.
+
+.. option:: --system-site-packages
+
+   Give the virtual environment access to the global
+   site-packages.
+
+.. option:: --always-copy
+
+   Always copy files rather than symlinking.
+
+.. option:: --relocatable
+
+   Make an EXISTING virtualenv environment relocatable.
+   This fixes up scripts and makes all .pth files relative.
+
+.. option:: --unzip-setuptools
+
+   Unzip Setuptools when installing it.
+
+.. option:: --no-setuptools
+
+   Do not install setuptools in the new virtualenv.
+
+.. option:: --no-pip
+
+   Do not install pip in the new virtualenv.
+
+.. option:: --no-wheel
+
+   Do not install wheel in the new virtualenv.
+
+.. option:: --extra-search-dir=DIR
+
+   Directory to look for setuptools/pip distributions in.
+   This option can be specified multiple times.
+
+.. option:: --prompt=PROMPT
+
+   Provides an alternative prompt prefix for this
+   environment.
+
+.. option:: --download
+
+   Download preinstalled packages from PyPI.
+
+.. option:: --no-download
+
+   Do not download preinstalled packages from PyPI.
+
+.. option:: --no-site-packages
+
+   DEPRECATED. Retained only for backward compatibility.
+   Not having access to global site-packages is now the
+   default behavior.
+
+.. option:: --distribute
+.. option:: --setuptools
+
+   Legacy; now have no effect.  Before version 1.10 these could be used
+   to choose whether to install Distribute_ or Setuptools_ into the created
+   virtualenv. Distribute has now been merged into Setuptools, and the
+   latter is always installed.
+
+.. _Distribute: https://pypi.python.org/pypi/distribute
+.. _Setuptools: https://pypi.python.org/pypi/setuptools
+
+
+Configuration
+-------------
+
+Environment Variables
+~~~~~~~~~~~~~~~~~~~~~
+
+Each command line option is automatically used to look for environment
+variables with the name format ``VIRTUALENV_<UPPER_NAME>``. That means
+the name of the command line options are capitalized and have dashes
+(``'-'``) replaced with underscores (``'_'``).
+
+For example, to automatically use a custom Python binary instead of the
+one virtualenv is run with you can also set an environment variable::
+
+  $ export VIRTUALENV_PYTHON=/opt/python-3.3/bin/python
+  $ virtualenv ENV
+
+It's the same as passing the option to virtualenv directly::
+
+  $ virtualenv --python=/opt/python-3.3/bin/python ENV
+
+This also works for appending command line options, like ``--find-links``.
+Just leave an empty space between the passed values, e.g.::
+
+  $ export VIRTUALENV_EXTRA_SEARCH_DIR="/path/to/dists /path/to/other/dists"
+  $ virtualenv ENV
+
+is the same as calling::
+
+  $ virtualenv --extra-search-dir=/path/to/dists --extra-search-dir=/path/to/other/dists ENV
+
+.. envvar:: VIRTUAL_ENV_DISABLE_PROMPT
+
+   Any virtualenv created when this is set to a non-empty value will not have
+   it's :ref:`activate` modify the shell prompt.
+
+
+Configuration File
+~~~~~~~~~~~~~~~~~~
+
+virtualenv also looks for a standard ini config file. On Unix and Mac OS X
+that's ``$HOME/.virtualenv/virtualenv.ini`` and on Windows, it's
+``%APPDATA%\virtualenv\virtualenv.ini``.
+
+The names of the settings are derived from the long command line option,
+e.g. the option :option:`--python <-p>` would look like this::
+
+  [virtualenv]
+  python = /opt/python-3.3/bin/python
+
+Appending options like :option:`--extra-search-dir` can be written on multiple
+lines::
+
+  [virtualenv]
+  extra-search-dir =
+      /path/to/dists
+      /path/to/other/dists
+
+Please have a look at the output of :option:`--help <-h>` for a full list
+of supported options.
+
+
+Extending Virtualenv
+--------------------
+
+
+Creating Your Own Bootstrap Scripts
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+While this creates an environment, it doesn't put anything into the
+environment. Developers may find it useful to distribute a script
+that sets up a particular environment, for example a script that
+installs a particular web application.
+
+To create a script like this, call
+:py:func:`virtualenv.create_bootstrap_script`, and write the
+result to your new bootstrapping script.
+
+.. py:function:: create_bootstrap_script(extra_text)
+
+   Creates a bootstrap script from ``extra_text``, which is like
+   this script but with extend_parser, adjust_options, and after_install hooks.
+
+This returns a string that (written to disk of course) can be used
+as a bootstrap script with your own customizations. The script
+will be the standard virtualenv.py script, with your extra text
+added (your extra text should be Python code).
+
+If you include these functions, they will be called:
+
+.. py:function:: extend_parser(optparse_parser)
+
+   You can add or remove options from the parser here.
+
+.. py:function:: adjust_options(options, args)
+
+   You can change options here, or change the args (if you accept
+   different kinds of arguments, be sure you modify ``args`` so it is
+   only ``[DEST_DIR]``).
+
+.. py:function:: after_install(options, home_dir)
+
+   After everything is installed, this function is called. This
+   is probably the function you are most likely to use. An
+   example would be::
+
+       def after_install(options, home_dir):
+           if sys.platform == 'win32':
+               bin = 'Scripts'
+           else:
+               bin = 'bin'
+           subprocess.call([join(home_dir, bin, 'easy_install'),
+                            'MyPackage'])
+           subprocess.call([join(home_dir, bin, 'my-package-script'),
+                            'setup', home_dir])
+
+   This example immediately installs a package, and runs a setup
+   script from that package.
+
+Bootstrap Example
+~~~~~~~~~~~~~~~~~
+
+Here's a more concrete example of how you could use this::
+
+    import virtualenv, textwrap
+    output = virtualenv.create_bootstrap_script(textwrap.dedent("""
+    import os, subprocess
+    def after_install(options, home_dir):
+        etc = join(home_dir, 'etc')
+        if not os.path.exists(etc):
+            os.makedirs(etc)
+        subprocess.call([join(home_dir, 'bin', 'easy_install'),
+                         'BlogApplication'])
+        subprocess.call([join(home_dir, 'bin', 'paster'),
+                         'make-config', 'BlogApplication',
+                         join(etc, 'blog.ini')])
+        subprocess.call([join(home_dir, 'bin', 'paster'),
+                         'setup-app', join(etc, 'blog.ini')])
+    """))
+    f = open('blog-bootstrap.py', 'w').write(output)
+
+Another example is available `here`__.
+
+.. __: https://github.com/socialplanning/fassembler/blob/master/fassembler/create-venv-script.py

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/docs/userguide.rst
@@ -0,0 +1,258 @@
+User Guide
+==========
+
+
+Usage
+-----
+
+Virtualenv has one basic command::
+
+    $ virtualenv ENV
+
+Where ``ENV`` is a directory to place the new virtual environment. It has
+a number of usual effects (modifiable by many :ref:`options`):
+
+ - :file:`ENV/lib/` and :file:`ENV/include/` are created, containing supporting
+   library files for a new virtualenv python. Packages installed in this
+   environment will live under :file:`ENV/lib/pythonX.X/site-packages/`.
+
+ - :file:`ENV/bin` is created, where executables live - noticeably a new
+   :command:`python`. Thus running a script with ``#! /path/to/ENV/bin/python``
+   would run that script under this virtualenv's python.
+
+ - The crucial packages pip_ and setuptools_ are installed, which allow other
+   packages to be easily installed to the environment. This associated pip
+   can be run from :file:`ENV/bin/pip`.
+
+The python in your new virtualenv is effectively isolated from the python that
+was used to create it.
+
+.. _pip: https://pypi.python.org/pypi/pip
+.. _setuptools: https://pypi.python.org/pypi/setuptools
+
+
+.. _activate:
+
+activate script
+~~~~~~~~~~~~~~~
+
+In a newly created virtualenv there will also be a :command:`activate` shell
+script. For Windows systems, activation scripts are provided for
+the Command Prompt and Powershell.
+
+On Posix systems, this resides in :file:`/ENV/bin/`, so you can run::
+
+    $ source bin/activate
+
+For some shells (e.g. the original Bourne Shell) you may need to use the
+:command:`.` command, when :command:`source` does not exist. There are also
+separate activate files for some other shells, like csh and fish.
+:file:`bin/activate` should work for bash/zsh/dash.
+
+This will change your ``$PATH`` so its first entry is the virtualenv's
+``bin/`` directory. (You have to use ``source`` because it changes your
+shell environment in-place.) This is all it does; it's purely a
+convenience. If you directly run a script or the python interpreter
+from the virtualenv's ``bin/`` directory (e.g. ``path/to/ENV/bin/pip``
+or ``/path/to/ENV/bin/python-script.py``) there's no need for
+activation.
+
+The ``activate`` script will also modify your shell prompt to indicate
+which environment is currently active. To disable this behaviour, see
+:envvar:`VIRTUAL_ENV_DISABLE_PROMPT`.
+
+To undo these changes to your path (and prompt), just run::
+
+    $ deactivate
+
+On Windows, the equivalent `activate` script is in the ``Scripts`` folder::
+
+    > \path\to\env\Scripts\activate
+
+And type ``deactivate`` to undo the changes.
+
+Based on your active shell (CMD.exe or Powershell.exe), Windows will use
+either activate.bat or activate.ps1 (as appropriate) to activate the
+virtual environment. If using Powershell, see the notes about code signing
+below.
+
+.. note::
+
+    If using Powershell, the ``activate`` script is subject to the
+    `execution policies`_ on the system. By default on Windows 7, the system's
+    excution policy is set to ``Restricted``, meaning no scripts like the
+    ``activate`` script are allowed to be executed. But that can't stop us
+    from changing that slightly to allow it to be executed.
+
+    In order to use the script, you can relax your system's execution
+    policy to ``AllSigned``, meaning all scripts on the system must be
+    digitally signed to be executed. Since the virtualenv activation
+    script is signed by one of the authors (Jannis Leidel) this level of
+    the execution policy suffices. As an administrator run::
+
+        PS C:\> Set-ExecutionPolicy AllSigned
+
+    Then you'll be asked to trust the signer, when executing the script.
+    You will be prompted with the following::
+
+        PS C:\> virtualenv .\foo
+        New python executable in C:\foo\Scripts\python.exe
+        Installing setuptools................done.
+        Installing pip...................done.
+        PS C:\> .\foo\scripts\activate
+
+        Do you want to run software from this untrusted publisher?
+        File C:\foo\scripts\activate.ps1 is published by E=jannis@leidel.info,
+        CN=Jannis Leidel, L=Berlin, S=Berlin, C=DE, Description=581796-Gh7xfJxkxQSIO4E0
+        and is not trusted on your system. Only run scripts from trusted publishers.
+        [V] Never run  [D] Do not run  [R] Run once  [A] Always run  [?] Help
+        (default is "D"):A
+        (foo) PS C:\>
+
+    If you select ``[A] Always Run``, the certificate will be added to the
+    Trusted Publishers of your user account, and will be trusted in this
+    user's context henceforth. If you select ``[R] Run Once``, the script will
+    be run, but you will be prometed on a subsequent invocation. Advanced users
+    can add the signer's certificate to the Trusted Publishers of the Computer
+    account to apply to all users (though this technique is out of scope of this
+    document).
+
+    Alternatively, you may relax the system execution policy to allow running
+    of local scripts without verifying the code signature using the following::
+
+        PS C:\> Set-ExecutionPolicy RemoteSigned
+
+    Since the ``activate.ps1`` script is generated locally for each virtualenv,
+    it is not considered a remote script and can then be executed.
+
+.. _`execution policies`: http://technet.microsoft.com/en-us/library/dd347641.aspx
+
+Removing an Environment
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Removing a virtual environment is simply done by deactivating it and deleting the
+environment folder with all its contents::
+
+    (ENV)$ deactivate
+    $ rm -r /path/to/ENV
+
+The :option:`--system-site-packages` Option
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you build with ``virtualenv --system-site-packages ENV``, your virtual
+environment will inherit packages from ``/usr/lib/python2.7/site-packages``
+(or wherever your global site-packages directory is).
+
+This can be used if you have control over the global site-packages directory,
+and you want to depend on the packages there. If you want isolation from the
+global system, do not use this flag.
+
+Windows Notes
+~~~~~~~~~~~~~
+
+Some paths within the virtualenv are slightly different on Windows: scripts and
+executables on Windows go in ``ENV\Scripts\`` instead of ``ENV/bin/`` and
+libraries go in ``ENV\Lib\`` rather than ``ENV/lib/``.
+
+To create a virtualenv under a path with spaces in it on Windows, you'll need
+the `win32api <http://sourceforge.net/projects/pywin32/>`_ library installed.
+
+
+Using Virtualenv without ``bin/python``
+---------------------------------------
+
+Sometimes you can't or don't want to use the Python interpreter
+created by the virtualenv. For instance, in a `mod_python
+<http://www.modpython.org/>`_ or `mod_wsgi <http://www.modwsgi.org/>`_
+environment, there is only one interpreter.
+
+Luckily, it's easy. You must use the custom Python interpreter to
+*install* libraries. But to *use* libraries, you just have to be sure
+the path is correct. A script is available to correct the path. You
+can setup the environment like::
+
+    activate_this = '/path/to/env/bin/activate_this.py'
+    execfile(activate_this, dict(__file__=activate_this))
+
+This will change ``sys.path`` and even change ``sys.prefix``, but also allow
+you to use an existing interpreter. Items in your environment will show up
+first on ``sys.path``, before global items. However, global items will
+always be accessible (as if the :option:`--system-site-packages` flag had been
+used in creating the environment, whether it was or not). Also, this cannot undo
+the activation of other environments, or modules that have been imported.
+You shouldn't try to, for instance, activate an environment before a web
+request; you should activate *one* environment as early as possible, and not
+do it again in that process.
+
+Making Environments Relocatable
+-------------------------------
+
+**Note:** this option is somewhat experimental, and there are probably
+caveats that have not yet been identified.
+
+.. warning::
+
+    The ``--relocatable`` option currently has a number of issues,
+    and is not guaranteed to work in all circumstances. It is possible
+    that the option will be deprecated in a future version of ``virtualenv``.
+
+Normally environments are tied to a specific path. That means that
+you cannot move an environment around or copy it to another computer.
+You can fix up an environment to make it relocatable with the
+command::
+
+    $ virtualenv --relocatable ENV
+
+This will make some of the files created by setuptools use relative paths,
+and will change all the scripts to use ``activate_this.py`` instead of using
+the location of the Python interpreter to select the environment.
+
+**Note:** scripts which have been made relocatable will only work if
+the virtualenv is activated, specifically the python executable from
+the virtualenv must be the first one on the system PATH. Also note that
+the activate scripts are not currently made relocatable by
+``virtualenv --relocatable``.
+
+**Note:** you must run this after you've installed *any* packages into
+the environment. If you make an environment relocatable, then
+install a new package, you must run ``virtualenv --relocatable``
+again.
+
+Also, this **does not make your packages cross-platform**. You can
+move the directory around, but it can only be used on other similar
+computers. Some known environmental differences that can cause
+incompatibilities: a different version of Python, when one platform
+uses UCS2 for its internal unicode representation and another uses
+UCS4 (a compile-time option), obvious platform changes like Windows
+vs. Linux, or Intel vs. ARM, and if you have libraries that bind to C
+libraries on the system, if those C libraries are located somewhere
+different (either different versions, or a different filesystem
+layout).
+
+If you use this flag to create an environment, currently, the
+:option:`--system-site-packages` option will be implied.
+
+The :option:`--extra-search-dir` option
+---------------------------------------
+
+This option allows you to provide your own versions of setuptools and/or
+pip to use instead of the embedded versions that come with virtualenv.
+
+To use this feature, pass one or more ``--extra-search-dir`` options to
+virtualenv like this::
+
+    $ virtualenv --extra-search-dir=/path/to/distributions ENV
+
+The ``/path/to/distributions`` path should point to a directory that contains
+setuptools and/or pip wheels.
+
+virtualenv will look for wheels in the specified directories, but will use
+pip's standard algorithm for selecting the wheel to install, which looks for
+the latest compatible wheel.
+
+As well as the extra directories, the search order includes:
+
+#. The ``virtualenv_support`` directory relative to virtualenv.py
+#. The directory where virtualenv.py is located.
+#. The current directory.
+

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/scripts/virtualenv
@@ -0,0 +1,3 @@
+#!/usr/bin/env python
+import virtualenv
+virtualenv.main()

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/setup.cfg
@@ -0,0 +1,8 @@
+[bdist_wheel]
+universal = 1
+
+[egg_info]
+tag_date = 0
+tag_build = 
+tag_svn_revision = 0
+

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/setup.py
@@ -0,0 +1,123 @@
+import os
+import re
+import shutil
+import sys
+
+if sys.version_info[:2] < (2, 6):
+    sys.exit('virtualenv requires Python 2.6 or higher.')
+
+try:
+    from setuptools import setup
+    from setuptools.command.test import test as TestCommand
+
+    class PyTest(TestCommand):
+        user_options = [('pytest-args=', 'a', "Arguments to pass to py.test")]
+
+        def initialize_options(self):
+            TestCommand.initialize_options(self)
+            self.pytest_args = []
+
+        def finalize_options(self):
+            TestCommand.finalize_options(self)
+            #self.test_args = []
+            #self.test_suite = True
+
+        def run_tests(self):
+            # import here, because outside the eggs aren't loaded
+            import pytest
+            sys.exit(pytest.main(self.pytest_args))
+
+    setup_params = {
+        'entry_points': {
+            'console_scripts': ['virtualenv=virtualenv:main'],
+        },
+        'zip_safe': False,
+        'cmdclass': {'test': PyTest},
+        'tests_require': ['pytest', 'mock'],
+    }
+except ImportError:
+    from distutils.core import setup
+    if sys.platform == 'win32':
+        print('Note: without Setuptools installed you will '
+              'have to use "python -m virtualenv ENV"')
+        setup_params = {}
+    else:
+        script = 'scripts/virtualenv'
+        setup_params = {'scripts': [script]}
+
+
+def read_file(*paths):
+    here = os.path.dirname(os.path.abspath(__file__))
+    with open(os.path.join(here, *paths)) as f:
+        return f.read()
+
+# Get long_description from index.rst:
+long_description = read_file('docs', 'index.rst')
+long_description = long_description.strip().split('split here', 1)[0]
+# Add release history
+changes = read_file('docs', 'changes.rst')
+# Only report last two releases for brevity
+releases_found = 0
+change_lines = []
+for line in changes.splitlines():
+    change_lines.append(line)
+    if line.startswith('--------------'):
+        releases_found += 1
+    if releases_found > 2:
+        break
+
+changes = '\n'.join(change_lines[:-2]) + '\n'
+changes += '`Full Changelog <https://virtualenv.pypa.io/en/latest/changes.html>`_.'
+# Replace issue/pull directives
+changes = re.sub(r':pull:`(\d+)`', r'PR #\1', changes)
+changes = re.sub(r':issue:`(\d+)`', r'#\1', changes)
+
+long_description += '\n\n' + changes
+
+
+def get_version():
+    version_file = read_file('virtualenv.py')
+    version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]",
+                              version_file, re.M)
+    if version_match:
+        return version_match.group(1)
+    raise RuntimeError("Unable to find version string.")
+
+
+# Hack to prevent stupid TypeError: 'NoneType' object is not callable error on
+# exit of python setup.py test # in multiprocessing/util.py _exit_function when
+# running python setup.py test (see
+# http://www.eby-sarna.com/pipermail/peak/2010-May/003357.html)
+try:
+    import multiprocessing  # noqa
+except ImportError:
+    pass
+
+setup(
+    name='virtualenv',
+    version=get_version(),
+    description="Virtual Python Environment builder",
+    long_description=long_description,
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: MIT License',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.6',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+    ],
+    keywords='setuptools deployment installation distutils',
+    author='Ian Bicking',
+    author_email='ianb@colorstudy.com',
+    maintainer='Jannis Leidel, Carl Meyer and Brian Rosner',
+    maintainer_email='python-virtualenv@groups.google.com',
+    url='https://virtualenv.pypa.io/',
+    license='MIT',
+    py_modules=['virtualenv'],
+    packages=['virtualenv_support'],
+    package_data={'virtualenv_support': ['*.whl']},
+    **setup_params)

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/site.py
@@ -0,0 +1,760 @@
+"""Append module search paths for third-party packages to sys.path.
+
+****************************************************************
+* This module is automatically imported during initialization. *
+****************************************************************
+
+In earlier versions of Python (up to 1.5a3), scripts or modules that
+needed to use site-specific modules would place ``import site''
+somewhere near the top of their code.  Because of the automatic
+import, this is no longer necessary (but code that does it still
+works).
+
+This will append site-specific paths to the module search path.  On
+Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
+appends lib/python<version>/site-packages as well as lib/site-python.
+It also supports the Debian convention of
+lib/python<version>/dist-packages.  On other platforms (mainly Mac and
+Windows), it uses just sys.prefix (and sys.exec_prefix, if different,
+but this is unlikely).  The resulting directories, if they exist, are
+appended to sys.path, and also inspected for path configuration files.
+
+FOR DEBIAN, this sys.path is augmented with directories in /usr/local.
+Local addons go into /usr/local/lib/python<version>/site-packages
+(resp. /usr/local/lib/site-python), Debian addons install into
+/usr/{lib,share}/python<version>/dist-packages.
+
+A path configuration file is a file whose name has the form
+<package>.pth; its contents are additional directories (one per line)
+to be added to sys.path.  Non-existing directories (or
+non-directories) are never added to sys.path; no directory is added to
+sys.path more than once.  Blank lines and lines beginning with
+'#' are skipped. Lines starting with 'import' are executed.
+
+For example, suppose sys.prefix and sys.exec_prefix are set to
+/usr/local and there is a directory /usr/local/lib/python2.X/site-packages
+with three subdirectories, foo, bar and spam, and two path
+configuration files, foo.pth and bar.pth.  Assume foo.pth contains the
+following:
+
+  # foo package configuration
+  foo
+  bar
+  bletch
+
+and bar.pth contains:
+
+  # bar package configuration
+  bar
+
+Then the following directories are added to sys.path, in this order:
+
+  /usr/local/lib/python2.X/site-packages/bar
+  /usr/local/lib/python2.X/site-packages/foo
+
+Note that bletch is omitted because it doesn't exist; bar precedes foo
+because bar.pth comes alphabetically before foo.pth; and spam is
+omitted because it is not mentioned in either path configuration file.
+
+After these path manipulations, an attempt is made to import a module
+named sitecustomize, which can perform arbitrary additional
+site-specific customizations.  If this import fails with an
+ImportError exception, it is silently ignored.
+
+"""
+
+import sys
+import os
+
+try:
+    import __builtin__ as builtins
+except ImportError:
+    import builtins
+try:
+    set
+except NameError:
+    from sets import Set as set
+
+# Prefixes for site-packages; add additional prefixes like /usr/local here
+PREFIXES = [sys.prefix, sys.exec_prefix]
+# Enable per user site-packages directory
+# set it to False to disable the feature or True to force the feature
+ENABLE_USER_SITE = None
+# for distutils.commands.install
+USER_SITE = None
+USER_BASE = None
+
+_is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32
+_is_pypy = hasattr(sys, 'pypy_version_info')
+_is_jython = sys.platform[:4] == 'java'
+if _is_jython:
+    ModuleType = type(os)
+
+def makepath(*paths):
+    dir = os.path.join(*paths)
+    if _is_jython and (dir == '__classpath__' or
+                       dir.startswith('__pyclasspath__')):
+        return dir, dir
+    dir = os.path.abspath(dir)
+    return dir, os.path.normcase(dir)
+
+def abs__file__():
+    """Set all module' __file__ attribute to an absolute path"""
+    for m in sys.modules.values():
+        if ((_is_jython and not isinstance(m, ModuleType)) or
+            hasattr(m, '__loader__')):
+            # only modules need the abspath in Jython. and don't mess
+            # with a PEP 302-supplied __file__
+            continue
+        f = getattr(m, '__file__', None)
+        if f is None:
+            continue
+        m.__file__ = os.path.abspath(f)
+
+def removeduppaths():
+    """ Remove duplicate entries from sys.path along with making them
+    absolute"""
+    # This ensures that the initial path provided by the interpreter contains
+    # only absolute pathnames, even if we're running from the build directory.
+    L = []
+    known_paths = set()
+    for dir in sys.path:
+        # Filter out duplicate paths (on case-insensitive file systems also
+        # if they only differ in case); turn relative paths into absolute
+        # paths.
+        dir, dircase = makepath(dir)
+        if not dircase in known_paths:
+            L.append(dir)
+            known_paths.add(dircase)
+    sys.path[:] = L
+    return known_paths
+
+# XXX This should not be part of site.py, since it is needed even when
+# using the -S option for Python.  See http://www.python.org/sf/586680
+def addbuilddir():
+    """Append ./build/lib.<platform> in case we're running in the build dir
+    (especially for Guido :-)"""
+    from distutils.util import get_platform
+    s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
+    if hasattr(sys, 'gettotalrefcount'):
+        s += '-pydebug'
+    s = os.path.join(os.path.dirname(sys.path[-1]), s)
+    sys.path.append(s)
+
+def _init_pathinfo():
+    """Return a set containing all existing directory entries from sys.path"""
+    d = set()
+    for dir in sys.path:
+        try:
+            if os.path.isdir(dir):
+                dir, dircase = makepath(dir)
+                d.add(dircase)
+        except TypeError:
+            continue
+    return d
+
+def addpackage(sitedir, name, known_paths):
+    """Add a new path to known_paths by combining sitedir and 'name' or execute
+    sitedir if it starts with 'import'"""
+    if known_paths is None:
+        _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    fullname = os.path.join(sitedir, name)
+    try:
+        f = open(fullname, "rU")
+    except IOError:
+        return
+    try:
+        for line in f:
+            if line.startswith("#"):
+                continue
+            if line.startswith("import"):
+                exec(line)
+                continue
+            line = line.rstrip()
+            dir, dircase = makepath(sitedir, line)
+            if not dircase in known_paths and os.path.exists(dir):
+                sys.path.append(dir)
+                known_paths.add(dircase)
+    finally:
+        f.close()
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitedir(sitedir, known_paths=None):
+    """Add 'sitedir' argument to sys.path if missing and handle .pth files in
+    'sitedir'"""
+    if known_paths is None:
+        known_paths = _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    sitedir, sitedircase = makepath(sitedir)
+    if not sitedircase in known_paths:
+        sys.path.append(sitedir)        # Add path component
+    try:
+        names = os.listdir(sitedir)
+    except os.error:
+        return
+    names.sort()
+    for name in names:
+        if name.endswith(os.extsep + "pth"):
+            addpackage(sitedir, name, known_paths)
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix):
+    """Add site-packages (and possibly site-python) to sys.path"""
+    prefixes = [os.path.join(sys_prefix, "local"), sys_prefix]
+    if exec_prefix != sys_prefix:
+        prefixes.append(os.path.join(exec_prefix, "local"))
+
+    for prefix in prefixes:
+        if prefix:
+            if sys.platform in ('os2emx', 'riscos') or _is_jython:
+                sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
+            elif _is_pypy:
+                sitedirs = [os.path.join(prefix, 'site-packages')]
+            elif sys.platform == 'darwin' and prefix == sys_prefix:
+
+                if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python
+
+                    sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"),
+                                os.path.join(prefix, "Extras", "lib", "python")]
+
+                else: # any other Python distros on OSX work this way
+                    sitedirs = [os.path.join(prefix, "lib",
+                                             "python" + sys.version[:3], "site-packages")]
+
+            elif os.sep == '/':
+                sitedirs = [os.path.join(prefix,
+                                         "lib",
+                                         "python" + sys.version[:3],
+                                         "site-packages"),
+                            os.path.join(prefix, "lib", "site-python"),
+                            os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")]
+                lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages")
+                if (os.path.exists(lib64_dir) and
+                    os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]):
+                    if _is_64bit:
+                        sitedirs.insert(0, lib64_dir)
+                    else:
+                        sitedirs.append(lib64_dir)
+                try:
+                    # sys.getobjects only available in --with-pydebug build
+                    sys.getobjects
+                    sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
+                except AttributeError:
+                    pass
+                # Debian-specific dist-packages directories:
+                sitedirs.append(os.path.join(prefix, "local/lib",
+                                             "python" + sys.version[:3],
+                                             "dist-packages"))
+                if sys.version[0] == '2':
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[:3],
+                                                 "dist-packages"))
+                else:
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[0],
+                                                 "dist-packages"))
+                sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
+            else:
+                sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
+            if sys.platform == 'darwin':
+                # for framework builds *only* we add the standard Apple
+                # locations. Currently only per-user, but /Library and
+                # /Network/Library could be added too
+                if 'Python.framework' in prefix:
+                    home = os.environ.get('HOME')
+                    if home:
+                        sitedirs.append(
+                            os.path.join(home,
+                                         'Library',
+                                         'Python',
+                                         sys.version[:3],
+                                         'site-packages'))
+            for sitedir in sitedirs:
+                if os.path.isdir(sitedir):
+                    addsitedir(sitedir, known_paths)
+    return None
+
+def check_enableusersite():
+    """Check if user site directory is safe for inclusion
+
+    The function tests for the command line flag (including environment var),
+    process uid/gid equal to effective uid/gid.
+
+    None: Disabled for security reasons
+    False: Disabled by user (command line option)
+    True: Safe and enabled
+    """
+    if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
+        return False
+
+    if hasattr(os, "getuid") and hasattr(os, "geteuid"):
+        # check process uid == effective uid
+        if os.geteuid() != os.getuid():
+            return None
+    if hasattr(os, "getgid") and hasattr(os, "getegid"):
+        # check process gid == effective gid
+        if os.getegid() != os.getgid():
+            return None
+
+    return True
+
+def addusersitepackages(known_paths):
+    """Add a per user site-package to sys.path
+
+    Each user has its own python directory with site-packages in the
+    home directory.
+
+    USER_BASE is the root directory for all Python versions
+
+    USER_SITE is the user specific site-packages directory
+
+    USER_SITE/.. can be used for data.
+    """
+    global USER_BASE, USER_SITE, ENABLE_USER_SITE
+    env_base = os.environ.get("PYTHONUSERBASE", None)
+
+    def joinuser(*args):
+        return os.path.expanduser(os.path.join(*args))
+
+    #if sys.platform in ('os2emx', 'riscos'):
+    #    # Don't know what to put here
+    #    USER_BASE = ''
+    #    USER_SITE = ''
+    if os.name == "nt":
+        base = os.environ.get("APPDATA") or "~"
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser(base, "Python")
+        USER_SITE = os.path.join(USER_BASE,
+                                 "Python" + sys.version[0] + sys.version[2],
+                                 "site-packages")
+    else:
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser("~", ".local")
+        USER_SITE = os.path.join(USER_BASE, "lib",
+                                 "python" + sys.version[:3],
+                                 "site-packages")
+
+    if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
+        addsitedir(USER_SITE, known_paths)
+    if ENABLE_USER_SITE:
+        for dist_libdir in ("lib", "local/lib"):
+            user_site = os.path.join(USER_BASE, dist_libdir,
+                                     "python" + sys.version[:3],
+                                     "dist-packages")
+            if os.path.isdir(user_site):
+                addsitedir(user_site, known_paths)
+    return known_paths
+
+
+
+def setBEGINLIBPATH():
+    """The OS/2 EMX port has optional extension modules that do double duty
+    as DLLs (and must use the .DLL file extension) for other extensions.
+    The library search path needs to be amended so these will be found
+    during module import.  Use BEGINLIBPATH so that these are at the start
+    of the library search path.
+
+    """
+    dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
+    libpath = os.environ['BEGINLIBPATH'].split(';')
+    if libpath[-1]:
+        libpath.append(dllpath)
+    else:
+        libpath[-1] = dllpath
+    os.environ['BEGINLIBPATH'] = ';'.join(libpath)
+
+
+def setquit():
+    """Define new built-ins 'quit' and 'exit'.
+    These are simply strings that display a hint on how to exit.
+
+    """
+    if os.sep == ':':
+        eof = 'Cmd-Q'
+    elif os.sep == '\\':
+        eof = 'Ctrl-Z plus Return'
+    else:
+        eof = 'Ctrl-D (i.e. EOF)'
+
+    class Quitter(object):
+        def __init__(self, name):
+            self.name = name
+        def __repr__(self):
+            return 'Use %s() or %s to exit' % (self.name, eof)
+        def __call__(self, code=None):
+            # Shells like IDLE catch the SystemExit, but listen when their
+            # stdin wrapper is closed.
+            try:
+                sys.stdin.close()
+            except:
+                pass
+            raise SystemExit(code)
+    builtins.quit = Quitter('quit')
+    builtins.exit = Quitter('exit')
+
+
+class _Printer(object):
+    """interactive prompt objects for printing the license text, a list of
+    contributors and the copyright notice."""
+
+    MAXLINES = 23
+
+    def __init__(self, name, data, files=(), dirs=()):
+        self.__name = name
+        self.__data = data
+        self.__files = files
+        self.__dirs = dirs
+        self.__lines = None
+
+    def __setup(self):
+        if self.__lines:
+            return
+        data = None
+        for dir in self.__dirs:
+            for filename in self.__files:
+                filename = os.path.join(dir, filename)
+                try:
+                    fp = open(filename, "rU")
+                    data = fp.read()
+                    fp.close()
+                    break
+                except IOError:
+                    pass
+            if data:
+                break
+        if not data:
+            data = self.__data
+        self.__lines = data.split('\n')
+        self.__linecnt = len(self.__lines)
+
+    def __repr__(self):
+        self.__setup()
+        if len(self.__lines) <= self.MAXLINES:
+            return "\n".join(self.__lines)
+        else:
+            return "Type %s() to see the full %s text" % ((self.__name,)*2)
+
+    def __call__(self):
+        self.__setup()
+        prompt = 'Hit Return for more, or q (and Return) to quit: '
+        lineno = 0
+        while 1:
+            try:
+                for i in range(lineno, lineno + self.MAXLINES):
+                    print(self.__lines[i])
+            except IndexError:
+                break
+            else:
+                lineno += self.MAXLINES
+                key = None
+                while key is None:
+                    try:
+                        key = raw_input(prompt)
+                    except NameError:
+                        key = input(prompt)
+                    if key not in ('', 'q'):
+                        key = None
+                if key == 'q':
+                    break
+
+def setcopyright():
+    """Set 'copyright' and 'credits' in __builtin__"""
+    builtins.copyright = _Printer("copyright", sys.copyright)
+    if _is_jython:
+        builtins.credits = _Printer(
+            "credits",
+            "Jython is maintained by the Jython developers (www.jython.org).")
+    elif _is_pypy:
+        builtins.credits = _Printer(
+            "credits",
+            "PyPy is maintained by the PyPy developers: http://pypy.org/")
+    else:
+        builtins.credits = _Printer("credits", """\
+    Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
+    for supporting Python development.  See www.python.org for more information.""")
+    here = os.path.dirname(os.__file__)
+    builtins.license = _Printer(
+        "license", "See http://www.python.org/%.3s/license.html" % sys.version,
+        ["LICENSE.txt", "LICENSE"],
+        [os.path.join(here, os.pardir), here, os.curdir])
+
+
+class _Helper(object):
+    """Define the built-in 'help'.
+    This is a wrapper around pydoc.help (with a twist).
+
+    """
+
+    def __repr__(self):
+        return "Type help() for interactive help, " \
+               "or help(object) for help about object."
+    def __call__(self, *args, **kwds):
+        import pydoc
+        return pydoc.help(*args, **kwds)
+
+def sethelper():
+    builtins.help = _Helper()
+
+def aliasmbcs():
+    """On Windows, some default encodings are not provided by Python,
+    while they are always available as "mbcs" in each locale. Make
+    them usable by aliasing to "mbcs" in such a case."""
+    if sys.platform == 'win32':
+        import locale, codecs
+        enc = locale.getdefaultlocale()[1]
+        if enc.startswith('cp'):            # "cp***" ?
+            try:
+                codecs.lookup(enc)
+            except LookupError:
+                import encodings
+                encodings._cache[enc] = encodings._unknown
+                encodings.aliases.aliases[enc] = 'mbcs'
+
+def setencoding():
+    """Set the string encoding used by the Unicode implementation.  The
+    default is 'ascii', but if you're willing to experiment, you can
+    change this."""
+    encoding = "ascii" # Default value set by _PyUnicode_Init()
+    if 0:
+        # Enable to support locale aware default string encodings.
+        import locale
+        loc = locale.getdefaultlocale()
+        if loc[1]:
+            encoding = loc[1]
+    if 0:
+        # Enable to switch off string to Unicode coercion and implicit
+        # Unicode to string conversion.
+        encoding = "undefined"
+    if encoding != "ascii":
+        # On Non-Unicode builds this will raise an AttributeError...
+        sys.setdefaultencoding(encoding) # Needs Python Unicode build !
+
+
+def execsitecustomize():
+    """Run custom site specific code, if available."""
+    try:
+        import sitecustomize
+    except ImportError:
+        pass
+
+def virtual_install_main_packages():
+    f = open(os.path.join(os.path.dirname(__file__), 'orig-prefix.txt'))
+    sys.real_prefix = f.read().strip()
+    f.close()
+    pos = 2
+    hardcoded_relative_dirs = []
+    if sys.path[0] == '':
+        pos += 1
+    if _is_jython:
+        paths = [os.path.join(sys.real_prefix, 'Lib')]
+    elif _is_pypy:
+        if sys.version_info > (3, 2):
+            cpyver = '%d' % sys.version_info[0]
+        elif sys.pypy_version_info >= (1, 5):
+            cpyver = '%d.%d' % sys.version_info[:2]
+        else:
+            cpyver = '%d.%d.%d' % sys.version_info[:3]
+        paths = [os.path.join(sys.real_prefix, 'lib_pypy'),
+                 os.path.join(sys.real_prefix, 'lib-python', cpyver)]
+        if sys.pypy_version_info < (1, 9):
+            paths.insert(1, os.path.join(sys.real_prefix,
+                                         'lib-python', 'modified-%s' % cpyver))
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        #
+        # This is hardcoded in the Python executable, but relative to sys.prefix:
+        for path in paths[:]:
+            plat_path = os.path.join(path, 'plat-%s' % sys.platform)
+            if os.path.exists(plat_path):
+                paths.append(plat_path)
+    # MOZ: The MSYS2 and MinGW versions of Python have their main packages in the UNIX directory this checks specifically for the native win32 python
+    elif sys.platform == 'win32' and os.sep == '\\':
+        paths = [os.path.join(sys.real_prefix, 'Lib'), os.path.join(sys.real_prefix, 'DLLs')]
+    else:
+        paths = [os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3])]
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        lib64_path = os.path.join(sys.real_prefix, 'lib64', 'python'+sys.version[:3])
+        if os.path.exists(lib64_path):
+            if _is_64bit:
+                paths.insert(0, lib64_path)
+            else:
+                paths.append(lib64_path)
+        # This is hardcoded in the Python executable, but relative to
+        # sys.prefix.  Debian change: we need to add the multiarch triplet
+        # here, which is where the real stuff lives.  As per PEP 421, in
+        # Python 3.3+, this lives in sys.implementation, while in Python 2.7
+        # it lives in sys.
+        try:
+            arch = getattr(sys, 'implementation', sys)._multiarch
+        except AttributeError:
+            # This is a non-multiarch aware Python.  Fallback to the old way.
+            arch = sys.platform
+        plat_path = os.path.join(sys.real_prefix, 'lib',
+                                 'python'+sys.version[:3],
+                                 'plat-%s' % arch)
+        if os.path.exists(plat_path):
+            paths.append(plat_path)
+    # This is hardcoded in the Python executable, but
+    # relative to sys.prefix, so we have to fix up:
+    for path in list(paths):
+        tk_dir = os.path.join(path, 'lib-tk')
+        if os.path.exists(tk_dir):
+            paths.append(tk_dir)
+
+    # These are hardcoded in the Apple's Python executable,
+    # but relative to sys.prefix, so we have to fix them up:
+    if sys.platform == 'darwin':
+        hardcoded_paths = [os.path.join(relative_dir, module)
+                           for relative_dir in hardcoded_relative_dirs
+                           for module in ('plat-darwin', 'plat-mac', 'plat-mac/lib-scriptpackages')]
+
+        for path in hardcoded_paths:
+            if os.path.exists(path):
+                paths.append(path)
+
+    sys.path.extend(paths)
+
+def force_global_eggs_after_local_site_packages():
+    """
+    Force easy_installed eggs in the global environment to get placed
+    in sys.path after all packages inside the virtualenv.  This
+    maintains the "least surprise" result that packages in the
+    virtualenv always mask global packages, never the other way
+    around.
+
+    """
+    egginsert = getattr(sys, '__egginsert', 0)
+    for i, path in enumerate(sys.path):
+        if i > egginsert and path.startswith(sys.prefix):
+            egginsert = i
+    sys.__egginsert = egginsert + 1
+
+def virtual_addsitepackages(known_paths):
+    force_global_eggs_after_local_site_packages()
+    return addsitepackages(known_paths, sys_prefix=sys.real_prefix)
+
+def fixclasspath():
+    """Adjust the special classpath sys.path entries for Jython. These
+    entries should follow the base virtualenv lib directories.
+    """
+    paths = []
+    classpaths = []
+    for path in sys.path:
+        if path == '__classpath__' or path.startswith('__pyclasspath__'):
+            classpaths.append(path)
+        else:
+            paths.append(path)
+    sys.path = paths
+    sys.path.extend(classpaths)
+
+def execusercustomize():
+    """Run custom user specific code, if available."""
+    try:
+        import usercustomize
+    except ImportError:
+        pass
+
+
+def main():
+    global ENABLE_USER_SITE
+    virtual_install_main_packages()
+    abs__file__()
+    paths_in_sys = removeduppaths()
+    if (os.name == "posix" and sys.path and
+        os.path.basename(sys.path[-1]) == "Modules"):
+        addbuilddir()
+    if _is_jython:
+        fixclasspath()
+    GLOBAL_SITE_PACKAGES = not os.path.exists(os.path.join(os.path.dirname(__file__), 'no-global-site-packages.txt'))
+    if not GLOBAL_SITE_PACKAGES:
+        ENABLE_USER_SITE = False
+    if ENABLE_USER_SITE is None:
+        ENABLE_USER_SITE = check_enableusersite()
+    paths_in_sys = addsitepackages(paths_in_sys)
+    paths_in_sys = addusersitepackages(paths_in_sys)
+    if GLOBAL_SITE_PACKAGES:
+        paths_in_sys = virtual_addsitepackages(paths_in_sys)
+    if sys.platform == 'os2emx':
+        setBEGINLIBPATH()
+    setquit()
+    setcopyright()
+    sethelper()
+    aliasmbcs()
+    setencoding()
+    execsitecustomize()
+    if ENABLE_USER_SITE:
+        execusercustomize()
+    # Remove sys.setdefaultencoding() so that users cannot change the
+    # encoding after initialization.  The test for presence is needed when
+    # this module is run as a script, because this code is executed twice.
+    if hasattr(sys, "setdefaultencoding"):
+        del sys.setdefaultencoding
+
+main()
+
+def _script():
+    help = """\
+    %s [--user-base] [--user-site]
+
+    Without arguments print some useful information
+    With arguments print the value of USER_BASE and/or USER_SITE separated
+    by '%s'.
+
+    Exit codes with --user-base or --user-site:
+      0 - user site directory is enabled
+      1 - user site directory is disabled by user
+      2 - uses site directory is disabled by super user
+          or for security reasons
+     >2 - unknown error
+    """
+    args = sys.argv[1:]
+    if not args:
+        print("sys.path = [")
+        for dir in sys.path:
+            print("    %r," % (dir,))
+        print("]")
+        def exists(path):
+            if os.path.isdir(path):
+                return "exists"
+            else:
+                return "doesn't exist"
+        print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
+        print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
+        print("ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE)
+        sys.exit(0)
+
+    buffer = []
+    if '--user-base' in args:
+        buffer.append(USER_BASE)
+    if '--user-site' in args:
+        buffer.append(USER_SITE)
+
+    if buffer:
+        print(os.pathsep.join(buffer))
+        if ENABLE_USER_SITE:
+            sys.exit(0)
+        elif ENABLE_USER_SITE is False:
+            sys.exit(1)
+        elif ENABLE_USER_SITE is None:
+            sys.exit(2)
+        else:
+            sys.exit(3)
+    else:
+        import textwrap
+        print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
+        sys.exit(10)
+
+if __name__ == '__main__':
+    _script()

new file mode 100644

new file mode 100755
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/tests/test_activate.sh
@@ -0,0 +1,96 @@
+#!/bin/sh
+
+set -u
+
+ROOT="$(dirname $0)/.."
+VIRTUALENV="${ROOT}/virtualenv.py"
+TESTENV="/tmp/test_virtualenv_activate.venv"
+
+rm -rf ${TESTENV}
+
+echo "$0: Creating virtualenv ${TESTENV}..." 1>&2
+
+${VIRTUALENV} ${TESTENV} | tee ${ROOT}/tests/test_activate_output.actual
+if ! diff ${ROOT}/tests/test_activate_output.expected ${ROOT}/tests/test_activate_output.actual; then
+    echo "$0: Failed to get expected output from ${VIRTUALENV}!" 1>&2
+    exit 1
+fi
+
+echo "$0: Created virtualenv ${TESTENV}." 1>&2
+
+echo "$0: Activating ${TESTENV}..." 1>&2
+. ${TESTENV}/bin/activate
+echo "$0: Activated ${TESTENV}." 1>&2
+
+echo "$0: Checking value of \$VIRTUAL_ENV..." 1>&2
+
+if [ "$VIRTUAL_ENV" != "${TESTENV}" ]; then
+    echo "$0: Expected \$VIRTUAL_ENV to be set to \"${TESTENV}\"; actual value: \"${VIRTUAL_ENV}\"!" 1>&2
+    exit 2
+fi
+
+echo "$0: \$VIRTUAL_ENV = \"${VIRTUAL_ENV}\" -- OK." 1>&2
+
+echo "$0: Checking output of \$(which python)..." 1>&2
+
+if [ "$(which python)" != "${TESTENV}/bin/python" ]; then
+    echo "$0: Expected \$(which python) to return \"${TESTENV}/bin/python\"; actual value: \"$(which python)\"!" 1>&2
+    exit 3
+fi
+
+echo "$0: Output of \$(which python) is OK." 1>&2
+
+echo "$0: Checking output of \$(which pip)..." 1>&2
+
+if [ "$(which pip)" != "${TESTENV}/bin/pip" ]; then
+    echo "$0: Expected \$(which pip) to return \"${TESTENV}/bin/pip\"; actual value: \"$(which pip)\"!" 1>&2
+    exit 4
+fi
+
+echo "$0: Output of \$(which pip) is OK." 1>&2
+
+echo "$0: Checking output of \$(which easy_install)..." 1>&2
+
+if [ "$(which easy_install)" != "${TESTENV}/bin/easy_install" ]; then
+    echo "$0: Expected \$(which easy_install) to return \"${TESTENV}/bin/easy_install\"; actual value: \"$(which easy_install)\"!" 1>&2
+    exit 5
+fi
+
+echo "$0: Output of \$(which easy_install) is OK." 1>&2
+
+echo "$0: Executing a simple Python program..." 1>&2
+
+TESTENV=${TESTENV} python <<__END__
+import os, sys
+
+expected_site_packages = os.path.join(os.environ['TESTENV'], 'lib','python%s' % sys.version[:3], 'site-packages')
+site_packages = os.path.join(os.environ['VIRTUAL_ENV'], 'lib', 'python%s' % sys.version[:3], 'site-packages')
+
+assert site_packages == expected_site_packages, 'site_packages did not have expected value; actual value: %r' % site_packages
+
+open(os.path.join(site_packages, 'pydoc_test.py'), 'w').write('"""This is pydoc_test.py"""\n')
+__END__
+
+if [ $? -ne 0 ]; then
+    echo "$0: Python script failed!" 1>&2
+    exit 6
+fi
+
+echo "$0: Execution of a simple Python program -- OK." 1>&2
+
+echo "$0: Testing pydoc..." 1>&2
+
+if ! PAGER=cat pydoc pydoc_test | grep 'This is pydoc_test.py' > /dev/null; then
+    echo "$0: pydoc test failed!" 1>&2
+    exit 7
+fi
+
+echo "$0: pydoc is OK." 1>&2
+
+echo "$0: Deactivating ${TESTENV}..." 1>&2
+deactivate
+echo "$0: Deactivated ${TESTENV}." 1>&2
+echo "$0: OK!" 1>&2
+
+rm -rf ${TESTENV}
+

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/tests/test_activate_output.expected
@@ -0,0 +1,2 @@
+New python executable in /tmp/test_virtualenv_activate.venv/bin/python
+Installing setuptools, pip, wheel...done.

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/tests/test_cmdline.py
@@ -0,0 +1,44 @@
+import sys
+import subprocess
+import virtualenv
+import pytest
+
+VIRTUALENV_SCRIPT = virtualenv.__file__
+
+def test_commandline_basic(tmpdir):
+    """Simple command line usage should work"""
+    subprocess.check_call([
+        sys.executable,
+        VIRTUALENV_SCRIPT,
+        str(tmpdir.join('venv'))
+    ])
+
+def test_commandline_explicit_interp(tmpdir):
+    """Specifying the Python interpreter should work"""
+    subprocess.check_call([
+        sys.executable,
+        VIRTUALENV_SCRIPT,
+        '-p', sys.executable,
+        str(tmpdir.join('venv'))
+    ])
+
+# The registry lookups to support the abbreviated "-p 3.5" form of specifying
+# a Python interpreter on Windows don't seem to work with Python 3.5. The
+# registry layout is not well documented, and it's not clear that the feature
+# is sufficiently widely used to be worth fixing.
+# See https://github.com/pypa/virtualenv/issues/864
+@pytest.mark.skipif("sys.platform == 'win32' and sys.version_info[:2] >= (3,5)")
+def test_commandline_abbrev_interp(tmpdir):
+    """Specifying abbreviated forms of the Python interpreter should work"""
+    if sys.platform == 'win32':
+        fmt = '%s.%s'
+    else:
+        fmt = 'python%s.%s'
+    abbrev = fmt % (sys.version_info[0], sys.version_info[1])
+    subprocess.check_call([
+        sys.executable,
+        VIRTUALENV_SCRIPT,
+        '-p', abbrev,
+        str(tmpdir.join('venv'))
+    ])
+

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/external_tools/virtualenv/tests/test_virtualenv.py
@@ -0,0 +1,139 @@
+import virtualenv
+import optparse
+import os
+import shutil
+import sys
+import tempfile
+import pytest
+import platform  # noqa
+
+from mock import patch, Mock
+
+
+def test_version():
+    """Should have a version string"""
+    assert virtualenv.virtualenv_version, "Should have version"
+
+
+@patch('os.path.exists')
+def test_resolve_interpreter_with_absolute_path(mock_exists):
+    """Should return absolute path if given and exists"""
+    mock_exists.return_value = True
+    virtualenv.is_executable = Mock(return_value=True)
+    test_abs_path = os.path.abspath("/usr/bin/python53")
+
+    exe = virtualenv.resolve_interpreter(test_abs_path)
+
+    assert exe == test_abs_path, "Absolute path should return as is"
+    mock_exists.assert_called_with(test_abs_path)
+    virtualenv.is_executable.assert_called_with(test_abs_path)
+
+
+@patch('os.path.exists')
+def test_resolve_interpreter_with_nonexistent_interpreter(mock_exists):
+    """Should SystemExit with an nonexistent python interpreter path"""
+    mock_exists.return_value = False
+
+    with pytest.raises(SystemExit):
+        virtualenv.resolve_interpreter("/usr/bin/python53")
+
+    mock_exists.assert_called_with("/usr/bin/python53")
+
+
+@patch('os.path.exists')
+def test_resolve_interpreter_with_invalid_interpreter(mock_exists):
+    """Should exit when with absolute path if not exists"""
+    mock_exists.return_value = True
+    virtualenv.is_executable = Mock(return_value=False)
+    invalid = os.path.abspath("/usr/bin/pyt_hon53")
+
+    with pytest.raises(SystemExit):
+        virtualenv.resolve_interpreter(invalid)
+
+    mock_exists.assert_called_with(invalid)
+    virtualenv.is_executable.assert_called_with(invalid)
+
+
+def test_activate_after_future_statements():
+    """Should insert activation line after last future statement"""
+    script = [
+        '#!/usr/bin/env python',
+        'from __future__ import with_statement',
+        'from __future__ import print_function',
+        'print("Hello, world!")'
+    ]
+    assert virtualenv.relative_script(script) == [
+        '#!/usr/bin/env python',
+        'from __future__ import with_statement',
+        'from __future__ import print_function',
+        '',
+        "import os; activate_this=os.path.join(os.path.dirname(os.path.realpath(__file__)), 'activate_this.py'); exec(compile(open(activate_this).read(), activate_this, 'exec'), dict(__file__=activate_this)); del os, activate_this",
+        '',
+        'print("Hello, world!")'
+    ]
+
+
+def test_cop_update_defaults_with_store_false():
+    """store_false options need reverted logic"""
+    class MyConfigOptionParser(virtualenv.ConfigOptionParser):
+        def __init__(self, *args, **kwargs):
+            self.config = virtualenv.ConfigParser.RawConfigParser()
+            self.files = []
+            optparse.OptionParser.__init__(self, *args, **kwargs)
+
+        def get_environ_vars(self, prefix='VIRTUALENV_'):
+            yield ("no_site_packages", "1")
+
+    cop = MyConfigOptionParser()
+    cop.add_option(
+        '--no-site-packages',
+        dest='system_site_packages',
+        action='store_false',
+        help="Don't give access to the global site-packages dir to the "
+             "virtual environment (default)")
+
+    defaults = {}
+    cop.update_defaults(defaults)
+    assert defaults == {'system_site_packages': 0}
+
+def test_install_python_bin():
+    """Should create the right python executables and links"""
+    tmp_virtualenv = tempfile.mkdtemp()
+    try:
+        home_dir, lib_dir, inc_dir, bin_dir = \
+                                virtualenv.path_locations(tmp_virtualenv)
+        virtualenv.install_python(home_dir, lib_dir, inc_dir, bin_dir, False,
+                                  False)
+
+        if virtualenv.is_win:
+            required_executables = [ 'python.exe', 'pythonw.exe']
+        else:
+            py_exe_no_version = 'python'
+            py_exe_version_major = 'python%s' % sys.version_info[0]
+            py_exe_version_major_minor = 'python%s.%s' % (
+                sys.version_info[0], sys.version_info[1])
+            required_executables = [ py_exe_no_version, py_exe_version_major,
+                                     py_exe_version_major_minor ]
+
+        for pth in required_executables:
+            assert os.path.exists(os.path.join(bin_dir, pth)), ("%s should "
+                            "exist in bin_dir" % pth)
+    finally:
+        shutil.rmtree(tmp_virtualenv)
+
+
+@pytest.mark.skipif("platform.python_implementation() == 'PyPy'")
+def test_always_copy_option():
+    """Should be no symlinks in directory tree"""
+    tmp_virtualenv = tempfile.mkdtemp()
+    ve_path = os.path.join(tmp_virtualenv, 'venv')
+    try:
+        virtualenv.create_environment(ve_path, symlink=False)
+
+        for root, dirs, files in os.walk(tmp_virtualenv):
+            for f in files + dirs:
+                full_name = os.path.join(root, f)
+                assert not os.path.islink(full_name), "%s should not be a" \
+                    " symlink (to %s)" % (full_name, os.readlink(full_name))
+    finally:
+        shutil.rmtree(tmp_virtualenv)