272 lines
10 KiB
Python
272 lines
10 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Matt Wright <matt@nobien.net>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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import tempfile
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import os
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DOCUMENTATION = '''
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---
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module: pip
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short_description: Manages Python library dependencies.
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description:
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- "Manage Python library dependencies. To use this module, one of the following keys is required: C(name)
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or C(requirements)."
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version_added: "0.7"
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options:
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name:
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description:
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- The name of a Python library to install or the url of the remote package.
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required: false
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default: null
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version:
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description:
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- The version number to install of the Python library specified in the I(name) parameter
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required: false
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default: null
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requirements:
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description:
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- The path to a pip requirements file
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required: false
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default: null
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virtualenv:
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description:
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- An optional path to a I(virtualenv) directory to install into
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required: false
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default: null
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virtualenv_site_packages:
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version_added: "1.0"
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description:
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- Whether the virtual environment will inherit packages from the
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global site-packages directory. Note that if this setting is
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changed on an already existing virtual environment it will not
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have any effect, the environment must be deleted and newly
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created.
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required: false
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default: "no"
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choices: [ "yes", "no" ]
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virtualenv_command:
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version_aded: "1.1"
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description:
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- The command to create the virtual environment with. For example
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C(pyvenv), C(virtualenv), C(virtualenv2).
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required: false
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default: virtualenv
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use_mirrors:
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description:
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- Whether to use mirrors when installing python libraries. If using
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an older version of pip (< 1.0), you should set this to no because
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older versions of pip do not support I(--use-mirrors).
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required: false
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default: "yes"
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choices: [ "yes", "no" ]
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version_added: "1.0"
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state:
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description:
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- The state of module
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required: false
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default: present
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choices: [ "present", "absent", "latest" ]
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extra_args:
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description:
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- Extra arguments passed to pip.
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required: false
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default: null
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version_added: "1.0"
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examples:
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- code: "pip: name=flask"
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description: Install I(flask) python package.
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- code: "pip: name=flask version=0.8"
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description: Install I(flask) python package on version 0.8.
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- code: "pip: name='svn+http://myrepo/svn/MyApp#egg=MyApp'"
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description: Install I(MyApp) using one of the remote protocols (bzr+,hg+,git+,svn+) or tarballs (zip, gz, bz2) C(pip) supports. You do not have to supply '-e' option in extra_args. For these source names, C(use_mirrors) is ignored and not applicable.
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- code: "pip: name=flask virtualenv=/my_app/venv"
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description: "Install I(Flask) (U(http://flask.pocoo.org/)) into the specified I(virtualenv), inheriting none of the globally installed modules"
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- code: "pip: name=flask virtualenv=/my_app/venv virtualenv_site_packages=yes"
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description: "Install I(Flask) (U(http://flask.pocoo.org/)) into the specified I(virtualenv), inheriting globally installed modules"
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- code: "pip: name=flask virtualenv=/my_app/venv virtualenv_command=virtualenv-2.7"
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description: "Install I(Flask) (U(http://flask.pocoo.org/)) into the specified I(virtualenv), using Python 2.7"
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- code: "pip: requirements=/my_app/requirements.txt"
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description: Install specified python requirements.
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- code: "pip: requirements=/my_app/requirements.txt virtualenv=/my_app/venv"
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description: Install specified python requirements in indicated I(virtualenv).
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- code: "pip: requirements=/my_app/requirements.txt extra_args='-i https://example.com/pypi/simple'"
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description: Install specified python requirements and custom Index URL.
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notes:
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- Please note that virtualenv (U(http://www.virtualenv.org/)) must be installed on the remote host if the virtualenv parameter is specified.
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requirements: [ "virtualenv", "pip" ]
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author: Matt Wright
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'''
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def _get_full_name(name, version=None):
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if version is None:
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resp = name
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else:
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resp = name + '==' + version
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return resp
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def _get_pip(module, env):
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# On Debian and Ubuntu, pip is pip.
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# On Fedora18 and up, pip is python-pip.
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# On Fedora17 and below, CentOS and RedHat 6 and 5, pip is pip-python.
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# On Fedora, CentOS, and RedHat, the exception is in the virtualenv.
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# There, pip is just pip.
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# Try pip with the virtualenv directory first.
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pip = module.get_bin_path('pip', False, ['%s/bin' % env])
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for p in ['python-pip', 'pip-python']:
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if not pip:
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pip = module.get_bin_path(p, False, ['%s/bin' % env])
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# pip should have been found by now. The final call to get_bin_path
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# will trigger fail_json.
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if not pip:
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pip = module.get_bin_path('pip', True, ['%s/bin' % env])
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return pip
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def _fail(module, cmd, out, err):
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msg = ''
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if out:
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msg += "stdout: %s" % (out, )
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if err:
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msg += "\n:stderr: %s" % (err, )
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module.fail_json(cmd=cmd, msg=msg)
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def main():
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state_map = dict(
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present='install',
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absent='uninstall -y',
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latest='install -U',
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)
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module = AnsibleModule(
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argument_spec=dict(
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state=dict(default='present', choices=state_map.keys()),
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name=dict(default=None, required=False),
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version=dict(default=None, required=False),
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requirements=dict(default=None, required=False),
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virtualenv=dict(default=None, required=False),
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virtualenv_site_packages=dict(default='no', type='bool'),
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virtualenv_command=dict(default='virtualenv', required=False),
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use_mirrors=dict(default='yes', type='bool'),
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extra_args=dict(default=None, required=False),
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),
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required_one_of=[['name', 'requirements']],
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mutually_exclusive=[['name', 'requirements']],
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supports_check_mode=True
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)
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state = module.params['state']
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name = module.params['name']
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version = module.params['version']
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requirements = module.params['requirements']
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use_mirrors = module.params['use_mirrors']
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extra_args = module.params['extra_args']
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if state == 'latest' and version is not None:
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module.fail_json(msg='version is incompatible with state=latest')
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err = ''
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out = ''
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env = module.params['virtualenv']
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virtualenv_command = module.params['virtualenv_command']
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if env:
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env = os.path.expanduser(env)
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virtualenv = module.get_bin_path(virtualenv_command, True)
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if not os.path.exists(os.path.join(env, 'bin', 'activate')):
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if module.check_mode:
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module.exit_json(changed=True)
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if module.params['virtualenv_site_packages']:
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cmd = '%s --system-site-packages %s' % (virtualenv, env)
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else:
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cmd = '%s %s' % (virtualenv, env)
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os.chdir(tempfile.gettempdir())
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rc, out_venv, err_venv = module.run_command(cmd)
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out += out_venv
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err += err_venv
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if rc != 0:
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_fail(module, cmd, out, err)
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pip = _get_pip(module, env)
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cmd = '%s %s' % (pip, state_map[state])
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if extra_args:
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cmd += ' %s' % extra_args
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if name:
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# pip can accept a path to a local project or a VCS url beginning
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# with svn+, git+, hg+, or bz+ and these sources usually do not qualify
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# --use-mirrors. Furthermore, the -e option is applied only when
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# source is a VCS url. Therefore, we will have branch cases for each
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# type of sources.
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#
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# is_vcs includes those begin with svn+, git+, hg+ or bzr+
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# is_tar ends with .zip, .tar.gz, or .tar.bz2
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is_vcs = False
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is_tar = False
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if name.endswith('.tar.gz') or name.endswith('.tar.bz2') or name.endswith('.zip'):
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is_tar = True
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elif name.startswith('svn+') or name.startswith('git+') or \
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name.startswith('hg+') or name.startswith('bzr+'):
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is_vcs = True
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# If is_vcs=True, we must add -e option (we assume users won't add that to extra_args).
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if is_vcs:
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args_list = [] # used if extra_args is not used at all
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if extra_args:
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args_list = extra_args.split(' ')
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if '-e' not in args_list:
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args_list.append('-e')
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# Ok, we will reconstruct the option string
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extra_args = ' '.join(args_list)
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# for tarball or vcs source, applying --use-mirrors doesn't really make sense
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is_package = is_vcs or is_tar # just a shortcut for bool
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if not is_package and state != 'absent' and use_mirrors:
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cmd += ' --use-mirrors'
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cmd += ' %s' % _get_full_name(name, version)
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elif requirements:
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cmd += ' -r %s' % requirements
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if module.check_mode:
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module.exit_json(changed=True)
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os.chdir(tempfile.gettempdir())
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rc, out_pip, err_pip = module.run_command(cmd)
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out += out_pip
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err += err_pip
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if rc == 1 and state == 'absent' and 'not installed' in out_pip:
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pass # rc is 1 when attempting to uninstall non-installed package
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elif rc != 0:
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_fail(module, cmd, out, err)
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if state == 'absent':
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changed = 'Successfully uninstalled' in out_pip
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else:
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changed = 'Successfully installed' in out_pip
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module.exit_json(changed=changed, cmd=cmd, name=name, version=version,
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state=state, requirements=requirements, virtualenv=env, stdout=out, stderr=err)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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