Removed virtualenv from depot_tools

bootstrap/virtualenv/docs/reference.rst

Index: bootstrap/virtualenv/docs/reference.rst
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-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 (or pip) in the new
-   virtualenv.
-
-.. option:: --no-pip
-
-   Do not install pip 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:: --never-download
-
-   DEPRECATED. Retained only for backward compatibility.
-   This option has no effect. Virtualenv never downloads
-   pip or setuptools.
-
-.. 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