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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
# (c) 2013, Dylan Martin <dmartin@seattlecentral.edu>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: unarchive
short_description: Copies archive to remote locations and unpacks them
description:
- The M(unarchive) module copies an archive file on the local box to remote locations and unpacks them.
options:
src:
description:
- Local path to archive file to copy to the remote server; can be absolute or relative.
required: true
default: null
dest:
description:
- Remote absolute path where the archive should be unpacked
required: true
default: null
author: Dylan Martin
todo:
- detect changed/unchanged for .zip files
- handle common unarchive args, like preserve owner/timestamp etc...
notes:
- requires tar/unzip command on host
- can handle gzip, bzip2 and xz compressed as well as uncompressed tar files
- detects type of archive automatically
- uses tar's --diff arg to calculate if changed or not. If this arg is not
supported, it will always unpack the archive
- does not detect if a .zip file is different from destination - always unzips
- existing files/directories in the destination which are not in the archvie
are not touched. This is the same behavior as a normal archive extraction
- existing files/directories in the destination which are not in the archvie
are ignored for purposes of deciding if the archive should be unpacked or not
'''
EXAMPLES = '''
# Example from Ansible Playbooks
- unarchive: src=foo.tgz dest=/var/lib/foo
'''
import os
# class to handle .zip files
class _zipfile(object):
def __init__(self,src,dest,module):
self.src = src
self.dest = dest
self.module = module
def is_unarchived(self):
return dict(bool = False)
def unarchive(self):
cmd = 'unzip "%s" -d "%s" -o' % (self.src,self.dest)
rc, out, err = self.module.run_command(cmd)
return dict(cmd = cmd, rc=rc, out=out, err=err)
def can_handle_archive(self):
cmd = 'unzip -l "%s"' % (self.src)
rc, out, err = self.module.run_command(cmd)
if rc == 0:
return True
return False
# class to handle gzipped tar files
class _tgzfile(object):
def __init__(self,src,dest,module):
self.src = src
self.dest = dest
self.module = module
self.zipflag = 'z'
def is_unarchived(self):
dirof = os.path.dirname(self.dest)
destbase = os.path.basename(self.dest)
cmd = 'tar -v -C "%s" --diff -%sf "%s"' % (self.dest, self.zipflag,self.src )
rc, out, err = self.module.run_command(cmd)
bool = True if rc == 0 else False
return dict( bool = bool, rc = rc , out = out, err = err, cmd = cmd)
def unarchive(self):
cmd = 'tar -C "%s" -x%sf "%s"' % (self.dest,self.zipflag,self.src)
rc, out, err = self.module.run_command(cmd)
return dict(cmd = cmd, rc=rc, out=out, err=err)
def can_handle_archive(self):
cmd = 'tar -t%sf "%s"' % (self.zipflag,self.src)
rc, out, err = self.module.run_command(cmd)
if rc == 0:
return True
return False
# class to handle tar files that aren't compressed
class _tarfile(_tgzfile):
def __init__(self,src,dest,module):
self.src = src
self.dest = dest
self.module = module
self.zipflag = ''
# class to handle bzip2 compressed tar files
class _tarbzip(_tgzfile):
def __init__(self,src,dest,module):
self.src = src
self.dest = dest
self.module = module
self.zipflag = 'j'
# class to handle xz compressed tar files
class _tarxz(_tgzfile):
def __init__(self,src,dest,module):
self.src = src
self.dest = dest
self.module = module
self.zipflag = 'J'
# try handlers in order and return the one that works or bail if none work
def pick_handler (src,dest,module):
handlers = [_tgzfile, _zipfile, _tarfile, _tarbzip, _tarxz]
for handler in handlers:
obj = handler(src,dest,module)
if obj.can_handle_archive():
return obj
raise RuntimeError('Failed to find handler to unarchive "%s"' % src)
def main():
module = AnsibleModule(
# not checking because of daisy chain to file module
argument_spec = dict(
src = dict(required=True),
original_basename = dict(required=False), # used to handle 'dest is a directory' via template, a slight hack
dest = dict(required=True),
),
add_file_common_args=True,
)
src = os.path.expanduser(module.params['src'])
dest = os.path.expanduser(module.params['dest'])
# did tar file arrive?
if not os.path.exists(src):
module.fail_json(msg="Source '%s' failed to transfer" % (src))
if not os.access(src, os.R_OK):
module.fail_json(msg="Source '%s' not readable" % (src))
# is dest OK to recieve tar file?
if not os.path.exists(os.path.dirname(dest)):
module.fail_json(msg="Destination directory '%s' does not exist" % (os.path.dirname(dest)))
if not os.access(os.path.dirname(dest), os.W_OK):
module.fail_json(msg="Destination '%s' not writable" % (os.path.dirname(dest)))
handler = pick_handler(src,dest,module)
res_args = dict( handler=handler.__class__.__name__, dest = dest, src = src )
# do we need to do unpack?
namelist = ['bool','rc','out','err','cmd']
res_args['check_results'] = handler.is_unarchived()
if res_args['check_results']['bool']:
res_args['changed'] = False
module.exit_json(**res_args)
# do the unpack
try:
results = handler.unarchive()
#results = (src,dest,module)
except IOError:
module.fail_json(msg="failed to unpack %s to %s" % (src, dest))
res_args['changed'] = True
module.exit_json(**res_args)
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
|
