150 lines
3.7 KiB
Python
Executable file
150 lines
3.7 KiB
Python
Executable file
#!/usr/bin/python -tt
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# (c) 2012, Flowroute LLC
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# Written by Matthew Williams <matthew@flowroute.com>
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# Based on yum module written by Seth Vidal <skvidal at fedoraproject.org>
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#
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# This module 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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# This software 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 this software. If not, see <http://www.gnu.org/licenses/>.
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#
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try:
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import json
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except ImportError:
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import simplejson as json
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import os
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import sys
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import apt
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import shlex
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import subprocess
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import traceback
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APT = "/usr/bin/apt-get"
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def debug(msg):
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# ansible ignores stderr, so it's safe to use for debug
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print >>sys.stderr, msg
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#pass
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def exit_json(rc=0, **kwargs):
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print json.dumps(kwargs)
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sys.exit(rc)
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def fail_json(**kwargs):
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kwargs['failed'] = True
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exit_json(rc=1, **kwargs)
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def run_apt(command):
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debug(command)
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try:
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cmd = subprocess.Popen(command, shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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except (OSError, IOError), e:
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rc = 1
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err = str(e)
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out = ''
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except:
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rc = 1
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err = traceback.format_exc()
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out = ''
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if out is None:
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out = ''
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if err is None:
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err = ''
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else:
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rc = cmd.returncode
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debug(err)
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return rc, out, err
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def get_cache():
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# TODO: Only update the cache if it's old.
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cache = apt.Cache()
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cache.update()
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cache.open(None)
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return cache
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def package_installed(pkgspec):
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cache = get_cache()
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try:
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pkg = cache[pkgspec]
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except:
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fail_json(msg="No package matching '%s' is available" % pkgspec)
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return bool(pkg.is_installed)
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def install(pkgspec):
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installed = package_installed(pkgspec)
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debug("installed: %d" % installed)
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if installed:
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return False
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else:
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cmd = "%s -q -y install '%s'" % (APT, pkgspec)
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rc, out, err = run_apt(cmd)
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# TODO: Ensure the package was really installed.
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return True
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def remove(pkgspec):
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installed = package_installed(pkgspec)
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debug("installed: %d" % installed)
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if not installed:
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return False
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else:
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cmd = "%s -q -y remove '%s'" % (APT, pkgspec)
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rc, out, err = run_apt(cmd)
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# TODO: Ensure the package was really removed.
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return True
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def update(args):
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# TODO: generic update routine
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pass
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def remove_only(pkgspec):
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# TODO: remove this pkg and only this pkg - fail if it will require more to remove
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pass
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# ===========================================
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if not os.path.exists(APT):
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fail_json(msg="Cannot find apt-get")
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argfile = sys.argv[1]
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args = open(argfile, 'r').read()
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items = shlex.split(args)
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if not len(items):
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fail_json(msg='the module requires arguments -a')
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sys.exit(1)
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params = {}
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for x in items:
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(k, v) = x.split("=")
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params[k] = v
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state = params.get('state','installed')
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package = params.get('pkg', None)
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if state not in ['installed', 'removed']:
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fail_json(msg='invalid state')
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if package is None:
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fail_json(msg='pkg is required')
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if state == 'installed':
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changed = install(package)
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elif state == 'removed':
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changed = remove(package)
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exit_json(changed=changed)
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fail_json(name=name, msg='Unexpected position reached')
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sys.exit(0)
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