bootstrapper 0.4

============
bootstrapper
============

.. image:: https://travis-ci.org/playpauseandstop/bootstrapper.png?branch=master
:target: https://travis-ci.org/playpauseandstop/bootstrapper

.. image:: https://pypip.in/v/bootstrapper/badge.png
:target: https://pypi-hypernode.com/pypi/bootstrapper

Bootstrap Python projects or libraries by checking system pre-requirements if
necessary, creating virtual environment, installing all requirements there and
finally execute post-bootstrap hooks if any.

Requirements
============

* `Python <http://www.python.org/>`_ 2.6+

Installation
============

As easy as::

# pip install bootstrapper

License
=======

``bootstrapper`` is licensed under the `BSD License
<https://github.com/playpauseandstop/bootstrapper/blob/master/LICENSE>`_.

Configuration
=============

You may configure any option of ``bootstrapper``, ``virtualenv`` and ``pip``
by setting it in ``bootstrap.cfg`` file. For example::

[bootstrapper]
env = venv
hook = cp -r {PROJECT}/settings_local.py{{.def,}}

[pip]
quiet = True

[virtualenv]
quiet = True

By default, next configuration would be used::

[bootstrapper]
env = env
requirements = requirements.txt
quiet = False

[pip]
download_cache = ~/.bootstrapper/pip-cache/

Your configuration or arguments from command line overwrite default options,
when arguments from command line overwrite your configuration as well.

Usage
=====

::

$ bootstrapper --help
usage: bootstrapper [-h] [--version] [-c CONFIG]
[-p PRE_REQUIREMENTS [PRE_REQUIREMENTS ...]] [-e ENV]
[-r REQUIREMENTS] [-C HOOK] [--recreate] [-q]

Bootstrap Python projects and libraries with virtualenv and pip.

optional arguments:
-h, --help show this help message and exit
--version show program's version number and exit
-c CONFIG, --config CONFIG
Path to config file. By default: bootstrap.cfg
-p PRE_REQUIREMENTS [PRE_REQUIREMENTS ...], --pre-requirements PRE_REQUIREMENTS [PRE_REQUIREMENTS ...]
List of pre-requirements to check, separated by space.
-e ENV, --env ENV Virtual environment name. By default: env
-r REQUIREMENTS, --requirements REQUIREMENTS
Path to requirements file. By default:
requirements.txt
-C HOOK, --hook HOOK Execute this hook after bootstrap process.
--recreate Recreate virtualenv on every run.
-q, --quiet Minimize output, show only error messages.

How it works?
=============

There are two types of Python installables: libraries and projects, where
library is Python code which only has ``setup.py`` and project is Python code
that has at least ``requirements.txt``, but could have ``setup.py`` as well.

Bootstrapper created as tool for installs Python projects, but time after time
I needed to use it with libraries too, so from version 0.2 script check if
passed requirements file exists on disk and if does just run,

::

$ pip install -r requirements.txt ...

inside of created virtual environment. But if requirements file does not exist,
script sends other arguments to ``pip``,

::

$ pip install -U -e . ...

and this is all magic.

So in pseudo-code installing Python library or project with bootstrapper is
simple process of 4 steps::

check_pre_requirements(list)
create_virtual_environment(env)
install_library_or_project(env)
run_hook(hook)

Changelog
=========

0.4 (2014-08-25)
----------------------

+ Exit from bootstrap script if given config file doesn't exist
+ Do not run post-bootstrap hook if environment creation or requirements
installation ended with error

0.3.1 (2014-03-08)
------------------

+ Fix ``UnboundLocalError`` in function to create virtual environment.

0.3 (2014-03-02)
----------------

+ Do not recreate virtual environment if already working in activated virtual
environment
+ Colorize error messages if system has pip 1.5+
+ Support multiple command line arguments for pip 1.5 from config files
+ Ignore double handling of virtualenv/pip errors

0.2.2 (2013-12-25)
------------------

+ More fixes to MS Windows platform
+ Ability to use ``{pip}`` in bootstrap.cfg as path to pip different in MS
Windows and Unix systems
+ Store full traceback on interrupting workflow or unexcepted error

0.2.1 (2013-12-20)
------------------

+ Fix installing requirements in venv on MS Windows platform

0.2 (2013-12-18)
----------------

+ Full support of MS Windows platform
+ Ability to use bootstrapper for libraries with only ``setup.py`` as well as
for projects with ``requirements.txt`` or other requirements file
- Remove support of major/minor requirements in favor of `tox
<http://tox.readthedocs.org>`_

0.1.6 (2013-12-17)
------------------

+ Initial support of MS Windows platform

0.1.5 (2013-06-02)
------------------

+ Real support of Python 3 versions
+ Enable Travis CI support
+ Refactor bootstrapper to Python module

0.1.4 (2013-06-02)
------------------

+ Support Python 3 versions

0.1.3 (2013-05-28)
------------------

- Disable ``--use-mirrors`` key by default for installing requirements via
``pip`` cause of latest `PyPI CDN changes
<https://twitter.com/pythonpackaging/status/339143339356061696>`_.

0.1.2 (2013-05-28)
------------------

+ Make ability to reuse cached pip files by storing them in ``~/.bootstrapper``
user directory by default.

0.1.1 (2013-01-02)
------------------

+ Use ``--use-mirrors`` key by default when ``pip`` installs requirements to
virtual environment.

0.1 (2012-09-26)
----------------

- Initial release.