Michael DeHaan
commit
069714c109
1 changed files with 198 additions and 0 deletions
198
pip
Executable file
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pip
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#!/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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PIP = None
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VIRTUALENV = None
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ENV = None
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def _get_full_name(name, version=None):
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return name if version is None else name + '==' + version
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def _find_pip():
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paths = ['/usr/local/bin', '/usr/bin']
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if ENV:
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paths = [os.path.join(ENV, 'bin')] + paths
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for p in paths:
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pe = p + '/pip'
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if os.path.exists(pe):
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return pe
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module.fail_json(msg='pip is not installed')
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def _find_virtualenv():
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paths = ['/usr/local/bin', '/usr/bin']
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for p in paths:
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ve = p + '/virtualenv'
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if os.path.exists(ve):
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return ve
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module.fail_json(msg='virtualenv is not installed')
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def _ensure_virtualenv():
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if os.path.exists(os.path.join(ENV, 'bin', 'activate')):
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return 0, '', ''
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else:
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return _run('%s %s' % (VIRTUALENV, ENV))
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def _is_package_installed(name, version=None):
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rc, status_stdout, status_stderr = _run('%s freeze' % PIP)
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return _get_full_name(name, version).lower() in status_stdout.lower()
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def _did_install(out):
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return 'Successfully installed' in out
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def _run(cmd):
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# returns (rc, stdout, stderr) from shell command
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process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, shell=True)
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stdout, stderr = process.communicate()
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return (process.returncode, stdout, stderr)
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def main():
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arg_spec = dict(
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state=dict(default='present', choices=['absent', 'present', 'latest']),
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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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)
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module = AnsibleModule(argument_spec=arg_spec)
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rc = 0
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err = ''
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out = ''
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ENV = module.params['virtualenv']
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PIP = _find_pip()
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if ENV:
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VIRTUALENV = _find_virtualenv()
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rc_venv, out_venv, err_venv = _ensure_virtualenv()
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rc += rc_venv
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out += out_venv
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err += err_venv
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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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command_map = dict(present='install', absent='uninstall', latest='install')
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if state == 'latest' and version is not None:
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module.fail_json(msg='If `state` is set to `latest` the `version` '
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'parameter must not be specified.')
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if state == 'latest' and requirements is not None:
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module.fail_json(msg='If `state` is set to `latest` the `requirements` '
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'parameter must not be specified.')
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if name is not None and '==' in name:
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module.fail_json(msg='It looks like you specified the version number '
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'in the library name. Use the `version` parameter '
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'to specify version instead')
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if version is not None and name is None:
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module.fail_json(msg='The `version` parameter must be used with the '
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'`name` parameter and not with the `requirements` '
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'paramter')
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if name is None and requirements is None:
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module.fail_json(msg='You must specify a python library name via '
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'the `name` parameter or a requirements file via '
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'the `requirements` paramter')
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if name and requirements:
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module.fail_json(msg='Both `name` and `requirements` were specified. '
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'Specify only the python library name via the '
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'`name` parameter or a requirements file via the '
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'`requirements` parameter')
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cmd = None
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installed = None
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if requirements:
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cmd = '%s %s -r %s --use-mirrors' % (PIP, command_map[state], requirements)
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rc_pip, out_pip, err_pip = _run(cmd)
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rc += rc_pip
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out += out_pip
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err += err_pip
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changed = ((_did_install(out) and state == 'present') or
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(not _did_install(out) and state == 'absent'))
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if name and state == 'latest':
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cmd = '%s %s %s --upgrade' % (PIP, command_map[state], name)
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rc_pip, out_pip, err_pip = _run(cmd)
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rc += rc_pip
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out += out_pip
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err += err_pip
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changed = 'Successfully installed' in out_pip
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elif name:
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installed = _is_package_installed(name, version)
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changed = ((installed and state == 'absent') or
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(not installed and state == 'present'))
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if changed:
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full_name = _get_full_name(name, version) if state == 'present' else name
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cmd = '%s %s %s' % (PIP, command_map[state], full_name)
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if state == 'absent':
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cmd = cmd + ' -y'
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else:
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cmd = cmd + ' --use-mirrors'
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rc_pip, out_pip, err_pip = _run(cmd)
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rc += rc_pip
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out += out_pip
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err += err_pip
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if rc != 0:
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module.fail_json(msg=err, cmd=cmd)
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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)
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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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