Erste feature-komplette Alpha
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30785db477
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147
Tools.py
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147
Tools.py
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#!/usr/bin/env python
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# encoding: utf-8
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# $Id$
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# $URL$
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"""
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Tools.py
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Created by Marcus Stoegbauer on 2013-01-12.
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Copyright (c) 2013 __MyCompanyName__. All rights reserved.
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"""
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import sys
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import os
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import cfgfile
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import filecmp
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import re
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import time
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import shutil
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class Debug(object):
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verbose = 0
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def __init__(self, verbose=0):
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self.setverbose(verbose)
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# def __init__
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def setverbose(self, verbose):
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"""docstring for setverbose"""
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self.verbose = verbose
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# def setverbose
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def debug(self, out, level=0):
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"""docstring for debug"""
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if self.verbose:
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if level > 0:
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print "*"*level,out
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else:
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print out
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# if verbose
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# def debug
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# class Debug
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def error(out):
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"""Print error on stderr"""
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print >> sys.stderr, str(out)+"\n"
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# def error
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def getConfig(filename):
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"""reads filename as config, checks for DEST parameter and returns cfgfile object"""
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try:
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ret = cfgfile.Conf(filename)
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except:
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error("Error reading config file %s" % filename)
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return False
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# try
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# check for DEST parameter
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if not ret.check("Main", "DEST"):
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error("No DEST in config file %s" % filename)
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return False
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# if no DEST
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# replace $HOME with real home directory
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if ret.get("Main", "DEST") == "$HOME":
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ret.set("Main", "DEST", os.environ['HOME'])
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# if $HOME
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# make sure DEST ends with /
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if not ret.get("Main", "DEST").endswith("/"):
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ret.set("Main", "DEST", ret.get("Main", "DEST")+"/")
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# if not /
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return ret
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# def getConfig
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def diff(destfile, tempfile, commentstring, debug):
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"""diff destfile and tempfile, returns True if files differ, False if they are the same"""
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# FIXME: filter out comments?
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debug.debug("Diffing %s and %s" % (destfile, tempfile))
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if not os.path.isfile(destfile):
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debug.debug("Destfile %s does not exist, returning True." % destfile)
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# destfile does not exist -> copy tempfile over
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return True
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# if not destfile
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if not os.path.isfile(tempfile):
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# tempfile does not exist, this should never happen
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error("Temporary file %s does not exist, this should not happen." % tempfile)
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sys.exit(1)
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# if not tempfile
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return not filecmp.cmp(tempfile, destfile)
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# def diff
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def userConfigGenerated(filename, cfg):
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"""returns True if filename has been generated by userconfig, False else"""
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if not os.path.isfile(filename):
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# filename does not exist, so it was not generated by userconfig
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return False
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# if not filename
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if not cfg.check("Main","STAMP"):
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# no STAMP in userconfig.cfg, so no way to check if file was generated by userconfig
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return False
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# no STAMP
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fp = open(filename, "r")
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for line in fp:
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if re.search(re.escape(cfg.get("Main","STAMP")), line):
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return True
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# if search
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# for line
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return False
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# def userConfigGenerated
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def backupFile(filename, debug):
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"""make backup of filename, returns True if backup is successful, False else"""
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if os.path.isfile(filename):
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backupname = filename+".userconfig."+time.strftime("%F")
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testbackupname = backupname
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counter = 0
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while os.path.isfile(testbackupname):
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counter+=1
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testbackupname=backupname+"."+str(counter)
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# while
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debug.debug("Renaming %s to %s" % (filename, testbackupname))
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os.rename(filename, testbackupname)
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return True
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# if filename
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return False
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# def backupFile
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def copyFile(sourcefile, destfile, debug):
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"""copy sourcefile to destfile, returns True if successful, False else"""
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if os.path.isfile(sourcefile):
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# sourcefile exists
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if os.access(destfile, os.W_OK):
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debug.debug("Copying %s to %s" % (sourcefile, destfile))
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shutil.copy(sourcefile, destfile)
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return True
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# destfile is writable
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# if write ok
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return False
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# def copyFile
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139
userconfig.py
139
userconfig.py
@ -19,66 +19,25 @@ import getopt
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#
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import cfgfile
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from checks import checks
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import Tools
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debug = Tools.Debug()
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classchecks = checks()
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cfg = cfgfile.Conf()
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verbose = 0
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hostclasses = classchecks.__classesForHost__()
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class Usage(Exception):
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def __init__(self, msg):
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self.msg = msg
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# def __init__
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help_message = """
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-h help
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-d debug
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-c userconfig.cfg config file
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"""
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def debug(out, level=0):
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"""docstring for debug"""
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if verbose:
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if level > 0:
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print "*"*level,out
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else:
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print out
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# if verbose
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# def debug
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def error(out):
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"""Print error on stderr"""
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print >> sys.stderr, str(out)+"\n"
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# def error
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def getConfig(filename):
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"""reads filename as config, checks for DEST parameter and returns cfgfile object"""
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try:
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ret = cfgfile.Conf(filename)
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except:
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error("Error reading config file %s" % filename)
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return False
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# try
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# check for DEST parameter
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if not ret.check("Main", "DEST"):
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error("No DEST in config file %s" % filename)
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return False
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# if no DEST
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# replace $HOME with real home directory
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if ret.get("Main", "DEST") == "$HOME":
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ret.set("Main", "DEST", os.environ['HOME'])
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# if $HOME
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# make sure DEST ends with /
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if not ret.get("Main", "DEST").endswith("/"):
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ret.set("Main", "DEST", ret.get("Main", "DEST")+"/")
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# if not /
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return ret
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# def getConfig
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# class Usage
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def workconf(directory, depth=2):
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"""walks through directory, collecting all filenames, returns list of all filenames"""
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@ -91,7 +50,7 @@ def workconf(directory, depth=2):
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workconf(name, depth+1)
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# if dir
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ret.append(name)
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debug("workconf: found file %s" % name, depth)
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debug.debug("workconf: found file %s" % name, depth)
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# for d
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return ret
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# def workconf
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@ -101,19 +60,19 @@ def workdir(directory):
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then collect all filenames within this directory and return a dict of all files for this
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directory
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"""
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debug("===============================", 1)
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debug.debug("===============================", 1)
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# skip directory if no CONFIGFILE present
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if not os.path.isfile(directory+"/"+cfg.get("Main", "CONFIGFILE")):
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debug("No %s in %s, skipping." % (cfg.get("Main", "CONFIGFILE"), directory), 1)
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return {}
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debug.debug("No %s in %s, skipping." % (cfg.get("Main", "CONFIGFILE"), directory), 1)
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return ({},{})
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# if not DEST
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# get config file for directory
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dirConfig = getConfig(directory+"/"+cfg.get("Main", "CONFIGFILE"))
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dirConfig = Tools.getConfig(directory+"/"+cfg.get("Main", "CONFIGFILE"))
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if not dirConfig:
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debug("Cannot read %s in %s, skipping." % (cfg.get("Main", "CONFIGFILE"), directory), 1)
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return {}
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debug.debug("Cannot read %s in %s, skipping." % (cfg.get("Main", "CONFIGFILE"), directory), 1)
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return ({},{})
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# if not dirConfig
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destdir = dirConfig.get("Main","DEST")
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@ -133,7 +92,7 @@ def workdir(directory):
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# if class directory exists
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if os.path.isdir(classdir):
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debug("workdir: %s" % classdir, 1)
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debug.debug("workdir: %s" % classdir, 1)
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# get list of files within this class directory
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tempfiles = workconf(classdir)
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@ -148,9 +107,9 @@ def workdir(directory):
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# if classdir
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# for hostclasses
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debug("workdir: %s, Files: %s" % (directory, str(destfiles)))
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debug("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^", 1)
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return destfiles
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debug.debug("workdir: %s, Files: %s" % (directory, str(destfiles)))
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debug.debug("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^", 1)
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return (destfiles, dirConfig)
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# def work
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def buildFile(classfiles, destfile):
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try:
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fp = os.fdopen(tempfd, "w")
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except:
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error("Cannot write to temporary file %s" % tempfilename)
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Tools.error("Cannot write to temporary file %s" % tempfilename)
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os.remove(tempfilename)
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return False
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# try
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@ -189,52 +148,34 @@ def buildFile(classfiles, destfile):
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return tempfilename
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# def buildFile
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def diff(fileA, fileB):
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"""diff fileA and fileB, returns True if files differ, False if they are the same"""
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# FIXME: write
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# FIXME: filter out comments?
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# FIXME: COMMENTSTRING in config?
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return False
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# def diff
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def userConfigGenerated(filename):
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"""returns True if filename has been generated by userconfig, False else"""
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# FIXME: write
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return True
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# def userConfigGenerated
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def backupFile(filename):
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"""make backup of filename, returns True if backup is successful, False else"""
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# FIXME: write
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return True
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# def backupFile
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def copyFile(sourcefile, destfile):
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"""copy sourcefile to destfile, returns True if successful, False else"""
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return True
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# def copyFile
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def processAllFiles(destfiles):
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def processAllFiles(destfiles, dirConfig):
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"""processes all files in destfiles, generate files from classes, compare and copy if necessary"""
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for df in destfiles.keys():
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# assemble file to tmp
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tempfilename = buildFile(destfiles[df], df)
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if not tempfilename:
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debug("Error while creating temp file for %s, skipping." % df)
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debug.debug("Error while creating temp file for %s, skipping." % df)
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continue
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# if not tempfilename
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commentstring = ""
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if dirConfig.check("Main", "COMMENSTRING"):
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commentstring = dirConfig.get("Main", "COMMENTSTRING")
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# if COMMENTSTRNIG
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# diff assembled file and config file
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if diff(df, tempfilename):
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if not userConfigGenerated(df):
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if Tools.diff(df, tempfilename, commentstring, debug):
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debug.debug("%s changed." % df)
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if not Tools.userConfigGenerated(df, cfg):
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debug.debug("%s not generated by userconfig, backing up." % df)
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# file not generated from userconfig -> back up
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backupFile(df)
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Tools.backupFile(df, debug)
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# if not userConfigGenerated
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# copy tmp file to real location
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copyFile(tempfilename, df)
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Tools.copyFile(tempfilename, df, debug)
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# if diff
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# remove tmp
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os.remove(tempfilename)
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# if diff
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# for df
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# def buildAllFiles
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@ -251,28 +192,28 @@ def main():
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for option, value in opts:
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if option == "-v":
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verbose = 1
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debug.setverbose(1)
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if option in ("-h", "--help"):
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raise Usage(help_message)
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if option in ("-d", "--debug"):
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if option in ("-d", "--debug.debug"):
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pass
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if option in ("-c", "--config"):
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configfile = value
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# if
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# for option, value
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except Usage, err:
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error(sys.argv[0].split("/")[-1] + ": " + str(err.msg))
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error("\t for help use --help")
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Tools.error(sys.argv[0].split("/")[-1] + ": " + str(err.msg))
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Tools.error("\t for help use --help")
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return 2
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# try
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if configfile == "":
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error( "No config file specified.")
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Tools.error( "No config file specified.")
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return 2
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# if configfile
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cfg.setfilename(configfile)
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debug("Classes for host: %s" % hostclasses)
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debug.debug("Classes for host: %s" % hostclasses)
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configdir = cfg.get("Main", "CONFIGDIR")
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for d in os.listdir(configdir):
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name = configdir+d
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@ -283,9 +224,9 @@ def main():
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elif os.path.isfile(name+"/.ignore"):
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continue
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else:
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debug("main: %s" % name)
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destfiles = workdir(name)
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processAllFiles(destfiles)
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debug.debug("main: %s" % name)
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(destfiles, dirConfig) = workdir(name)
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processAllFiles(destfiles, dirConfig)
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# if
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# for d
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# def main
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