ansible/library/homebrew

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2013-03-17 02:52:51 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2013, Andrew Dunham <andrew@du.nham.ca>
# Based on macports (Jimmy Tang <jcftang@gmail.com>)
#
# This module is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: homebrew
author: Andrew Dunham
short_description: Package manager for Homebrew
description:
- Manages Homebrew packages
version_added: "1.1"
options:
name:
description:
- name of package to install/remove
required: true
state:
description:
- state of the package
choices: [ 'present', 'absent' ]
required: false
default: present
update_homebrew:
description:
- update homebrew itself first
required: false
default: "no"
choices: [ "yes", "no" ]
notes: []
'''
EXAMPLES = '''
homebrew: name=foo state=present
homebrew: name=foo state=present update_homebrew=yes
homebrew: name=foo state=absent
homebrew: name=foo,bar state=absent
'''
def update_homebrew(module, brew_path):
""" Updates packages list. """
rc, out, err = module.run_command("%s update" % brew_path)
if rc != 0:
module.fail_json(msg="could not update homebrew")
def query_package(module, brew_path, name, state="present"):
""" Returns whether a package is installed or not. """
if state == "present":
rc, out, err = module.run_command("%s list -m1 | grep -q '^%s$'" % (brew_path, name))
if rc == 0:
return True
return False
def remove_packages(module, brew_path, packages):
""" Uninstalls one or more packages if installed. """
removed_count = 0
# Using a for loop incase of error, we can report the package that failed
for package in packages:
# Query the package first, to see if we even need to remove.
if not query_package(module, brew_path, package):
continue
if module.check_mode:
module.exit_json(changed=True)
rc, out, err = module.run_command([brew_path, 'remove', package])
if query_package(module, brew_path, package):
module.fail_json(msg="failed to remove %s: %s" % (package, out.strip()))
removed_count += 1
if removed_count > 0:
module.exit_json(changed=True, msg="removed %d package(s)" % removed_count)
module.exit_json(changed=False, msg="package(s) already absent")
def install_packages(module, brew_path, packages):
""" Installs one or more packages if not already installed. """
installed_count = 0
for package in packages:
if query_package(module, brew_path, package):
continue
if module.check_mode:
module.exit_json(changed=True)
rc, out, err = module.run_command([brew_path, 'install', package])
if not query_package(module, brew_path, package):
module.fail_json(msg="failed to install %s: %s" % (package, out.strip()))
installed_count += 1
if installed_count > 0:
module.exit_json(changed=True, msg="installed %d package(s)" % (installed_count,))
module.exit_json(changed=False, msg="package(s) already present")
def main():
module = AnsibleModule(
argument_spec = dict(
name = dict(aliases=["pkg"], required=True),
state = dict(default="present", choices=["present", "installed", "absent", "removed"]),
update_homebrew = dict(default="no", aliases=["update-brew"], type='bool')
),
supports_check_mode=True
)
brew_path = module.get_bin_path('brew', True, ['/usr/local/bin'])
p = module.params
if p["update_homebrew"]:
update_homebrew(module, brew_path)
pkgs = p["name"].split(",")
if p["state"] in ["present", "installed"]:
install_packages(module, brew_path, pkgs)
elif p["state"] in ["absent", "removed"]:
remove_packages(module, brew_path, pkgs)
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()