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112 lines
2.8 KiB
Python
112 lines
2.8 KiB
Python
#!/usr/bin/python
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# (c) 2012, Stephen Fromm <sfromm@gmail.com>
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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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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 os.path
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import md5
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import sys
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import shlex
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import shutil
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import syslog
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import tempfile
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# Since hashlib is only available in 2.5 and onwards, this module
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# uses md5 which is available in 2.4.
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# ===========================================
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# Support methods
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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 assemble_from_fragments(path):
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''' assemble a file from a directory of fragments '''
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assembled = []
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for f in sorted(os.listdir(path)):
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fragment = "%s/%s" % (path, f)
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if os.path.isfile(fragment):
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assembled.append(file(fragment).read())
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return "".join(assembled)
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def write_temp_file(data):
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fd, path = tempfile.mkstemp()
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os.write(fd, data)
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os.close(fd)
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return path
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# ===========================================
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if len(sys.argv) == 1:
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fail_json(msg="the assemble module requires arguments (-a)")
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argfile = sys.argv[1]
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if not os.path.exists(argfile):
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fail_json(msg="Argument file not found")
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args = open(argfile, 'r').read()
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items = shlex.split(args)
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syslog.openlog('ansible-%s' % os.path.basename(__file__))
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syslog.syslog(syslog.LOG_NOTICE, 'Invoked with %s' % args)
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if not len(items):
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fail_json(msg="the assemble module requires arguments (-a)")
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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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changed = False
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pathmd5 = None
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destmd5 = None
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src = params.get('src', None)
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dest = params.get('dest', None)
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if src:
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src = os.path.expanduser(src)
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if dest:
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dest = os.path.expanduser(dest)
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if not os.path.exists(src):
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fail_json(msg="Source (%s) does not exist" % src)
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if not os.path.isdir(src):
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fail_json(msg="Source (%s) is not a directory" % src)
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path = write_temp_file(assemble_from_fragments(src))
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pathmd5 = md5.new(file(path).read()).hexdigest()
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if os.path.exists(dest):
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destmd5 = md5.new(file(dest).read()).hexdigest()
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if pathmd5 != destmd5:
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shutil.copy(path, dest)
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changed = True
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exit_json(md5sum=pathmd5, changed=changed)
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