mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
655 lines
22 KiB
Python
655 lines
22 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@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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import sys
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import os
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import shlex
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import re
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import codecs
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import jinja2
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import yaml
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import optparse
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import operator
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from ansible import errors
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from ansible import __version__
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import ansible.constants as C
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import time
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import StringIO
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import imp
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import glob
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import subprocess
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import stat
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import termios
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import tty
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from multiprocessing import Manager
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VERBOSITY=0
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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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try:
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from hashlib import md5 as _md5
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except ImportError:
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from md5 import md5 as _md5
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PASSLIB_AVAILABLE = False
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try:
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import passlib.hash
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PASSLIB_AVAILABLE = True
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except:
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pass
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KEYCZAR_AVAILABLE=False
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try:
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from keyczar.keys import AesKey
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KEYCZAR_AVAILABLE=True
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except ImportError:
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pass
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###############################################################
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# abtractions around keyczar
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def key_for_hostname(hostname):
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# fireball mode is an implementation of ansible firing up zeromq via SSH
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# to use no persistent daemons or key management
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key_path = os.path.expanduser("~/.fireball.keys")
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if not os.path.exists(key_path):
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os.makedirs(key_path)
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key_path = os.path.expanduser("~/.fireball.keys/%s" % hostname)
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# use new AES keys every 2 hours, which means fireball must not allow running for longer either
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if not os.path.exists(key_path) or (time.time() - os.path.getmtime(key_path) > 60*60*2):
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key = AesKey.Generate()
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fh = open(key_path, "w")
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fh.write(str(key))
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fh.close()
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return key
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else:
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fh = open(key_path)
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key = AesKey.Read(fh.read())
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fh.close()
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return key
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def encrypt(key, msg):
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return key.Encrypt(msg)
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def decrypt(key, msg):
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try:
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return key.Decrypt(msg)
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except keyczar.errors.InvalidSignatureError:
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raise errors.AnsibleError("decryption failed")
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###############################################################
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# UTILITY FUNCTIONS FOR COMMAND LINE TOOLS
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###############################################################
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def err(msg):
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''' print an error message to stderr '''
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print >> sys.stderr, msg
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def exit(msg, rc=1):
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''' quit with an error to stdout and a failure code '''
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err(msg)
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sys.exit(rc)
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def jsonify(result, format=False):
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''' format JSON output (uncompressed or uncompressed) '''
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result2 = result.copy()
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if format:
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return json.dumps(result2, sort_keys=True, indent=4)
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else:
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return json.dumps(result2, sort_keys=True)
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def write_tree_file(tree, hostname, buf):
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''' write something into treedir/hostname '''
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# TODO: might be nice to append playbook runs per host in a similar way
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# in which case, we'd want append mode.
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path = os.path.join(tree, hostname)
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fd = open(path, "w+")
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fd.write(buf)
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fd.close()
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def is_failed(result):
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''' is a given JSON result a failed result? '''
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return ((result.get('rc', 0) != 0) or (result.get('failed', False) in [ True, 'True', 'true']))
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def check_conditional(conditional):
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def is_set(var):
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return not var.startswith("$")
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def is_unset(var):
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return var.startswith("$")
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return eval(conditional.replace("\n", "\\n"))
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def is_executable(path):
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'''is the given path executable?'''
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return (stat.S_IXUSR & os.stat(path)[stat.ST_MODE]
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or stat.S_IXGRP & os.stat(path)[stat.ST_MODE]
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or stat.S_IXOTH & os.stat(path)[stat.ST_MODE])
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def prepare_writeable_dir(tree):
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''' make sure a directory exists and is writeable '''
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if tree != '/':
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tree = os.path.realpath(os.path.expanduser(tree))
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if not os.path.exists(tree):
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try:
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os.makedirs(tree)
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except (IOError, OSError), e:
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exit("Could not make dir %s: %s" % (tree, e))
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if not os.access(tree, os.W_OK):
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exit("Cannot write to path %s" % tree)
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def path_dwim(basedir, given):
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''' make relative paths work like folks expect '''
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if given.startswith("/"):
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return given
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elif given.startswith("~/"):
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return os.path.expanduser(given)
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else:
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return os.path.join(basedir, given)
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def json_loads(data):
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''' parse a JSON string and return a data structure '''
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return json.loads(data)
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def parse_json(raw_data):
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''' this version for module return data only '''
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# ignore stuff like tcgetattr spewage or other warnings
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data = filter_leading_non_json_lines(raw_data)
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try:
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return json.loads(data)
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except:
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# not JSON, but try "Baby JSON" which allows many of our modules to not
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# require JSON and makes writing modules in bash much simpler
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results = {}
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try:
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tokens = shlex.split(data)
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except:
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print "failed to parse json: "+ data
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raise
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for t in tokens:
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if t.find("=") == -1:
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raise errors.AnsibleError("failed to parse: %s" % raw_data)
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(key,value) = t.split("=", 1)
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if key == 'changed' or 'failed':
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if value.lower() in [ 'true', '1' ]:
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value = True
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elif value.lower() in [ 'false', '0' ]:
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value = False
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if key == 'rc':
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value = int(value)
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results[key] = value
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if len(results.keys()) == 0:
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return { "failed" : True, "parsed" : False, "msg" : raw_data }
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return results
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_LISTRE = re.compile(r"(\w+)\[(\d+)\]")
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class VarNotFoundException(Exception):
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pass
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def _varLookup(path, vars, depth=0):
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''' find the contents of a possibly complex variable in vars. '''
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space = vars
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for part in path:
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part = varReplace(part, vars, depth=depth + 1)
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if part in space:
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space = space[part]
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elif "[" in part:
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m = _LISTRE.search(part)
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if not m:
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raise VarNotFoundException()
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try:
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space = space[m.group(1)][int(m.group(2))]
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except (KeyError, IndexError):
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raise VarNotFoundException()
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else:
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raise VarNotFoundException()
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return space
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def _varFind(text):
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start = text.find("$")
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if start == -1:
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return None
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var_start = start + 1
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if text[var_start] == '{':
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is_complex = True
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brace_level = 1
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var_start += 1
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else:
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is_complex = False
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brace_level = 0
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end = var_start
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path = []
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part_start = (var_start, brace_level)
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while end < len(text) and ((is_complex and brace_level > 0) or not is_complex):
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if text[end].isalnum() or text[end] == '_':
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pass
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elif is_complex and text[end] == '{':
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brace_level += 1
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elif is_complex and text[end] == '}':
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brace_level -= 1
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elif is_complex and text[end] in ('$', '[', ']'):
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pass
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elif is_complex and text[end] == '.':
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if brace_level == part_start[1]:
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if text[part_start[0]] == '{':
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path.append(text[part_start[0] + 1:end - 1])
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else:
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path.append(text[part_start[0]:end])
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part_start = (end + 1, brace_level)
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else:
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break
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end += 1
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var_end = end
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if is_complex:
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var_end -= 1
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if text[var_end] != '}' or brace_level != 0:
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return None
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path.append(text[part_start[0]:var_end])
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return {'path': path, 'start': start, 'end': end}
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def varReplace(raw, vars, depth=0):
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''' Perform variable replacement of $variables in string raw using vars dictionary '''
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# this code originally from yum
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if (depth > 20):
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raise errors.AnsibleError("template recursion depth exceeded")
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done = [] # Completed chunks to return
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while raw:
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m = _varFind(raw)
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if not m:
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done.append(raw)
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break
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# Determine replacement value (if unknown variable then preserve
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# original)
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try:
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replacement = _varLookup(m['path'], vars, depth)
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if isinstance(replacement, (list, tuple)):
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replacement = ",".join(replacement)
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if isinstance(replacement, (str, unicode)):
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replacement = varReplace(replacement, vars, depth=depth + 1)
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except VarNotFoundException:
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replacement = raw[m['start']:m['end']]
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start, end = m['start'], m['end']
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done.append(raw[:start]) # Keep stuff leading up to token
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done.append(unicode(replacement)) # Append replacement value
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raw = raw[end:] # Continue with remainder of string
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return ''.join(done)
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_FILEPIPECRE = re.compile(r"\$(?P<special>FILE|PIPE)\(([^\)]+)\)")
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def varReplaceFilesAndPipes(basedir, raw):
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done = [] # Completed chunks to return
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while raw:
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m = _FILEPIPECRE.search(raw)
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if not m:
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done.append(raw)
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break
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# Determine replacement value (if unknown variable then preserve
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# original)
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replacement = m.group()
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if m.group(1) == "FILE":
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path = path_dwim(basedir, m.group(2))
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try:
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f = open(path, "r")
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replacement = f.read()
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f.close()
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except IOError:
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raise errors.AnsibleError("$FILE(%s) failed" % path)
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elif m.group(1) == "PIPE":
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p = subprocess.Popen(m.group(2), shell=True, stdout=subprocess.PIPE)
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(stdout, stderr) = p.communicate()
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if p.returncode == 0:
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replacement = stdout
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else:
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raise errors.AnsibleError("$PIPE(%s) returned %d" % (m.group(2), p.returncode))
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start, end = m.span()
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done.append(raw[:start]) # Keep stuff leading up to token
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done.append(replacement.rstrip()) # Append replacement value
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raw = raw[end:] # Continue with remainder of string
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return ''.join(done)
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def varReplaceWithItems(basedir, varname, vars):
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''' helper function used by with_items '''
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if isinstance(varname, basestring):
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m = _varFind(varname)
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if not m:
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return varname
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if m['start'] == 0 and m['end'] == len(varname):
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try:
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return varReplaceWithItems(basedir, _varLookup(m['path'], vars), vars)
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except VarNotFoundException:
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return varname
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else:
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return template(basedir, varname, vars)
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elif isinstance(varname, (list, tuple)):
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return [varReplaceWithItems(basedir, v, vars) for v in varname]
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elif isinstance(varname, dict):
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d = {}
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for (k, v) in varname.iteritems():
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d[k] = varReplaceWithItems(basedir, v, vars)
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return d
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else:
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raise Exception("invalid with_items type")
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def template(basedir, text, vars):
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''' run a text buffer through the templating engine until it no longer changes '''
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prev_text = ''
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try:
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text = text.decode('utf-8')
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except UnicodeEncodeError:
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pass # already unicode
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text = varReplace(unicode(text), vars)
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text = varReplaceFilesAndPipes(basedir, text)
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return text
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def template_from_file(basedir, path, vars):
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''' run a file through the templating engine '''
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environment = jinja2.Environment(loader=jinja2.FileSystemLoader(basedir), trim_blocks=True)
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environment.filters['to_json'] = json.dumps
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environment.filters['from_json'] = json.loads
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environment.filters['to_yaml'] = yaml.dump
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environment.filters['from_yaml'] = yaml.load
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data = codecs.open(path_dwim(basedir, path), encoding="utf8").read()
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t = environment.from_string(data)
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vars = vars.copy()
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res = t.render(vars)
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if data.endswith('\n') and not res.endswith('\n'):
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res = res + '\n'
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return template(basedir, res, vars)
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def parse_yaml(data):
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''' convert a yaml string to a data structure '''
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return yaml.load(data)
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def parse_yaml_from_file(path):
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''' convert a yaml file to a data structure '''
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try:
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data = file(path).read()
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return parse_yaml(data)
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except IOError:
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raise errors.AnsibleError("file not found: %s" % path)
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except yaml.YAMLError, exc:
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if hasattr(exc, 'problem_mark'):
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mark = exc.problem_mark
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if mark.line -1 >= 0:
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before_probline = data.split("\n")[mark.line-1]
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else:
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before_probline = ''
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probline = data.split("\n")[mark.line]
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arrow = " " * mark.column + "^"
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msg = """Syntax Error while loading YAML script, %s
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Note: The error may actually appear before this position: line %s, column %s
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%s
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%s
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%s""" % (path, mark.line + 1, mark.column + 1, before_probline, probline, arrow)
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else:
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# No problem markers means we have to throw a generic
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# "stuff messed up" type message. Sry bud.
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msg = "Could not parse YAML. Check over %s again." % path
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raise errors.AnsibleYAMLValidationFailed(msg)
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def parse_kv(args):
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''' convert a string of key/value items to a dict '''
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options = {}
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if args is not None:
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# attempting to split a unicode here does bad things
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vargs = shlex.split(str(args), posix=True)
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for x in vargs:
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if x.find("=") != -1:
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k, v = x.split("=",1)
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options[k]=v
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return options
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def md5(filename):
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''' Return MD5 hex digest of local file, or None if file is not present. '''
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if not os.path.exists(filename):
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return None
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digest = _md5()
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blocksize = 64 * 1024
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infile = open(filename, 'rb')
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block = infile.read(blocksize)
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while block:
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digest.update(block)
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block = infile.read(blocksize)
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infile.close()
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return digest.hexdigest()
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def default(value, function):
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''' syntactic sugar around lazy evaluation of defaults '''
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if value is None:
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return function()
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return value
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def _gitinfo():
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''' returns a string containing git branch, commit id and commit date '''
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result = None
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repo_path = os.path.join(os.path.dirname(__file__), '..', '..', '.git')
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if os.path.exists(repo_path):
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# Check if the .git is a file. If it is a file, it means that we are in a submodule structure.
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if os.path.isfile(repo_path):
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try:
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gitdir = yaml.load(open(repo_path)).get('gitdir')
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# There is a posibility the .git file to have an absolute path.
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if os.path.isabs(gitdir):
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repo_path = gitdir
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else:
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repo_path = os.path.join(repo_path.split('.git')[0], gitdir)
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except (IOError, AttributeError):
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return ''
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f = open(os.path.join(repo_path, "HEAD"))
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branch = f.readline().split('/')[-1].rstrip("\n")
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f.close()
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branch_path = os.path.join(repo_path, "refs", "heads", branch)
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if os.path.exists(branch_path):
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f = open(branch_path)
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commit = f.readline()[:10]
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f.close()
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date = time.localtime(os.stat(branch_path).st_mtime)
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if time.daylight == 0:
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offset = time.timezone
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else:
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offset = time.altzone
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result = "({0} {1}) last updated {2} (GMT {3:+04d})".format(branch, commit,
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time.strftime("%Y/%m/%d %H:%M:%S", date), offset / -36)
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else:
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result = ''
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return result
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def version(prog):
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result = "{0} {1}".format(prog, __version__)
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gitinfo = _gitinfo()
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if gitinfo:
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result = result + " {0}".format(gitinfo)
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return result
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def getch():
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''' read in a single character '''
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fd = sys.stdin.fileno()
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old_settings = termios.tcgetattr(fd)
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try:
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tty.setraw(sys.stdin.fileno())
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ch = sys.stdin.read(1)
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finally:
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termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
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return ch
|
|
|
|
####################################################################
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|
# option handling code for /usr/bin/ansible and ansible-playbook
|
|
# below this line
|
|
|
|
class SortedOptParser(optparse.OptionParser):
|
|
'''Optparser which sorts the options by opt before outputting --help'''
|
|
|
|
def format_help(self, formatter=None):
|
|
self.option_list.sort(key=operator.methodcaller('get_opt_string'))
|
|
return optparse.OptionParser.format_help(self, formatter=None)
|
|
|
|
def increment_debug(option, opt, value, parser):
|
|
global VERBOSITY
|
|
VERBOSITY += 1
|
|
|
|
def base_parser(constants=C, usage="", output_opts=False, runas_opts=False,
|
|
async_opts=False, connect_opts=False, subset_opts=False):
|
|
''' create an options parser for any ansible script '''
|
|
|
|
parser = SortedOptParser(usage, version=version("%prog"))
|
|
parser.add_option('-v','--verbose', default=False, action="callback",
|
|
callback=increment_debug, help="verbose mode (-vvv for more)")
|
|
|
|
parser.add_option('-f','--forks', dest='forks', default=constants.DEFAULT_FORKS, type='int',
|
|
help="specify number of parallel processes to use (default=%s)" % constants.DEFAULT_FORKS)
|
|
parser.add_option('-i', '--inventory-file', dest='inventory',
|
|
help="specify inventory host file (default=%s)" % constants.DEFAULT_HOST_LIST,
|
|
default=constants.DEFAULT_HOST_LIST)
|
|
parser.add_option('-k', '--ask-pass', default=False, dest='ask_pass', action='store_true',
|
|
help='ask for SSH password')
|
|
parser.add_option('--private-key', default=C.DEFAULT_PRIVATE_KEY_FILE, dest='private_key_file',
|
|
help='use this file to authenticate the connection')
|
|
parser.add_option('-K', '--ask-sudo-pass', default=False, dest='ask_sudo_pass', action='store_true',
|
|
help='ask for sudo password')
|
|
parser.add_option('-M', '--module-path', dest='module_path',
|
|
help="specify path(s) to module library (default=%s)" % constants.DEFAULT_MODULE_PATH,
|
|
default=constants.DEFAULT_MODULE_PATH)
|
|
|
|
if subset_opts:
|
|
parser.add_option('-l', '--limit', default=constants.DEFAULT_SUBSET, dest='subset',
|
|
help='further limit selected hosts to an additional pattern')
|
|
|
|
parser.add_option('-T', '--timeout', default=constants.DEFAULT_TIMEOUT, type='int',
|
|
dest='timeout',
|
|
help="override the SSH timeout in seconds (default=%s)" % constants.DEFAULT_TIMEOUT)
|
|
|
|
if output_opts:
|
|
parser.add_option('-o', '--one-line', dest='one_line', action='store_true',
|
|
help='condense output')
|
|
parser.add_option('-t', '--tree', dest='tree', default=None,
|
|
help='log output to this directory')
|
|
|
|
if runas_opts:
|
|
parser.add_option("-s", "--sudo", default=False, action="store_true",
|
|
dest='sudo', help="run operations with sudo (nopasswd)")
|
|
parser.add_option('-U', '--sudo-user', dest='sudo_user', help='desired sudo user (default=root)',
|
|
default=None) # Can't default to root because we need to detect when this option was given
|
|
parser.add_option('-u', '--user', default=constants.DEFAULT_REMOTE_USER,
|
|
dest='remote_user',
|
|
help='connect as this user (default=%s)' % constants.DEFAULT_REMOTE_USER)
|
|
|
|
if connect_opts:
|
|
parser.add_option('-c', '--connection', dest='connection',
|
|
default=C.DEFAULT_TRANSPORT,
|
|
help="connection type to use (default=%s)" % C.DEFAULT_TRANSPORT)
|
|
|
|
if async_opts:
|
|
parser.add_option('-P', '--poll', default=constants.DEFAULT_POLL_INTERVAL, type='int',
|
|
dest='poll_interval',
|
|
help="set the poll interval if using -B (default=%s)" % constants.DEFAULT_POLL_INTERVAL)
|
|
parser.add_option('-B', '--background', dest='seconds', type='int', default=0,
|
|
help='run asynchronously, failing after X seconds (default=N/A)')
|
|
|
|
return parser
|
|
|
|
def do_encrypt(result, encrypt, salt_size=None, salt=None):
|
|
if PASSLIB_AVAILABLE:
|
|
try:
|
|
crypt = getattr(passlib.hash, encrypt)
|
|
except:
|
|
raise errors.AnsibleError("passlib does not support '%s' algorithm" % encrypt)
|
|
|
|
if salt_size:
|
|
result = crypt.encrypt(result, salt_size=salt_size)
|
|
elif salt:
|
|
result = crypt.encrypt(result, salt=salt)
|
|
else:
|
|
result = crypt.encrypt(result)
|
|
else:
|
|
raise errors.AnsibleError("passlib must be installed to encrypt vars_prompt values")
|
|
|
|
return result
|
|
|
|
def last_non_blank_line(buf):
|
|
|
|
all_lines = buf.splitlines()
|
|
all_lines.reverse()
|
|
for line in all_lines:
|
|
if (len(line) > 0):
|
|
return line
|
|
# shouldn't occur unless there's no output
|
|
return ""
|
|
|
|
def filter_leading_non_json_lines(buf):
|
|
'''
|
|
used to avoid random output from SSH at the top of JSON output, like messages from
|
|
tcagetattr, or where dropbear spews MOTD on every single command (which is nuts).
|
|
|
|
need to filter anything which starts not with '{', '[', ', '=' or is an empty line.
|
|
filter only leading lines since multiline JSON is valid.
|
|
'''
|
|
|
|
filtered_lines = StringIO.StringIO()
|
|
stop_filtering = False
|
|
for line in buf.splitlines():
|
|
if stop_filtering or "=" in line or line.startswith('{') or line.startswith('['):
|
|
stop_filtering = True
|
|
filtered_lines.write(line + '\n')
|
|
return filtered_lines.getvalue()
|
|
|
|
def import_plugins(directory):
|
|
modules = {}
|
|
for path in glob.glob(os.path.join(directory, '*.py')):
|
|
if path.startswith("_"):
|
|
continue
|
|
name, ext = os.path.splitext(os.path.basename(path))
|
|
if not name.startswith("_"):
|
|
modules[name] = imp.load_source(name, path)
|
|
return modules
|