271 lines
10 KiB
Python
Executable File
271 lines
10 KiB
Python
Executable File
#!/usr/bin/env python3
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# encoding: utf-8
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#
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"""
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userconfig.py
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Created by Marcus Stoegbauer on 2013-01-10.
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"""
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import sys
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import os
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import tempfile
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import re
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import getopt
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import time
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import subprocess
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#
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import Userconfig.cfgfile as cfgfile
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from Userconfig.checks import Checks
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import Userconfig.Tools as 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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help_message = """
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-h help
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-v verbose level (multiple v for higher level)
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-c userconfig.cfg config file
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"""
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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 workconf(directory, depth=2):
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"""walks through directory, collecting all filenames, returns list of all filenames"""
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dirs = os.listdir(directory)
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ret = []
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debug.debug(" ================ workconf ===============", 1)
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debug.debug(" Finding files in directory %s." % directory, 4)
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for d in dirs:
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name = directory+"/"+d
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if os.path.isdir(name):
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workconf(name, depth+1)
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if name.endswith(".swp"):
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continue
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if d == ".svn":
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continue
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ret.append(name)
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debug.debug(" +++ Found file %s in directory %s" % (name, directory), 4)
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debug.debug(" ================ workconf ===============", 1)
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return ret
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def workdir(directory):
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"""walks through all host classes, checking if the classes directory exists in 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.debug(" ================ workdir ===============", 1)
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debug.debug(" Working on directory %s" % directory, 3)
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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.debug(" --- No %s in %s, skipping." % (cfg.get("Main", "configfile"), directory), 1)
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return {},None
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# get config file for directory
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dir_config = Tools.get_config(directory + "/" + cfg.get("Main", "configfile"))
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if not dir_config:
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debug.debug(" --- Cannot read %s in %s, skipping." % (cfg.get("Main", "configfile"), directory), 1)
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return {},None
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destdir = dir_config.get("Main","dest")
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# destfiles is a dict of all files that will be created from the classes config
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# key is the destination filename, values are all classes filenames that are used to
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# build the file
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destfiles = {}
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# FIXME: reverse_order should really be a bool in .cfg, implement variable types in cfg file
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reverse_sort = False
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try:
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reverse_sort = (dir_config.get("Main", "reverse") == 'True')
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except ValueError:
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reverse_sort = False
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if os.access(directory + "/install.sh", os.X_OK):
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subprocess.call([directory + "/install.sh"])
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# walk through all know classes in directory and find filenames
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for h in classchecks.__classes_for_host__(reverse_sort):
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# build classes directory
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if h[0] != "":
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classdir = directory+"/"+h[0]+"_"+h[1]
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else:
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classdir = directory+"/"+h[1]
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debug.debug(" ??? Looking for directory %s." % classdir, 4)
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# if class directory exists
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if os.path.isdir(classdir):
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debug.debug(" +++ Found directory %s, getting files." % classdir, 4)
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# get list of files within this class directory
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tempfiles = workconf(classdir)
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debug.debug(" +++ Got %d files: %s." % (len(tempfiles), str(tempfiles)), 4)
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# put files into dict
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for f in tempfiles:
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destname = destdir+os.path.basename(f) # destination filename
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if not destname in destfiles:
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destfiles[destname] = []
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destfiles[destname].append(f) # append each file to dict
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debug.debug(" +++ Added file to %s, now %d files: %s" % (destname, len(destfiles[destname]), destfiles[destname]), 4)
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debug.debug(" === workdir: %s, Files: %s" % (directory, str(destfiles)), 3)
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debug.debug(" ================ workdir ===============", 1)
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return destfiles, dir_config
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def build_file(classfiles, destfile, commentstring):
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"""open all classfiles, assemble them and write the contents into a tempfile
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returns the name of tempfile
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:param classfiles:
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:param destfile:
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:param commentstring:
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:return: str
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"""
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content = []
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debug.debug(" ================ build_file ===============", 1)
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if commentstring != "":
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debug.debug(" +++ commentstring found, adding header.", 3)
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content.append(commentstring + " " + cfg.get("Main","stamp") + " " + time.strftime("%+") + "\n")
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for f in classfiles:
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debug.debug(" +++ Merging %s." % f, 4)
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fp = open(f, "r")
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filecontent = fp.read()
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fp.close()
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if commentstring == "":
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# look for stamp in content, replace with real stamp
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if re.search(re.escape(cfg.get("Main","stampreplace")), filecontent):
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debug.debug(" +++ commentstring empty, replacing stamp in file", 3)
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filecontent = re.sub(re.escape(cfg.get("Main","stampreplace")), cfg.get("Main","stamp"), filecontent)
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content.append(filecontent)
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(tempfd, tempfilename) = tempfile.mkstemp(prefix=os.path.basename(destfile), dir="/tmp")
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try:
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fp = os.fdopen(tempfd, "w")
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except:
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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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debug.debug(" +++ Writing merged files into tempfile %s." % tempfilename, 3)
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for block in content:
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fp.write(block)
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fp.write("\n")
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fp.close()
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debug.debug(" ================ build_file ===============", 1)
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return tempfilename
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def process_all_files(destfiles, dir_config):
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"""processes all files in destfiles, generate files from classes, compare and copy if necessary"""
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debug.debug(" ================ process_all_files ===============", 1)
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for df in destfiles.keys():
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debug.debug(" ??? Processing source files for %s." % df, 2)
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if not os.path.exists(os.path.dirname(df)):
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debug.debug(" +++ Directory %s does not exist, creating" % os.path.dirname(df), 1)
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os.mkdir(os.path.dirname(df))
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if not os.path.isdir(os.path.dirname(df)):
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debug.debug(" --- Destination directory %s does not exist, skipping." % os.path.dirname(df), 1)
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return False
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# assemble file to tmp
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commentstring = ""
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if dir_config.check("Main", "commentstring"):
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commentstring = dir_config.get("Main", "commentstring")
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debug.debug(" +++ Found commentstring %s in %s" % (commentstring, df), 3)
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tempfilename = build_file(destfiles[df], df, commentstring)
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if not tempfilename:
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debug.debug(" --- Error while creating temp file for %s, skipping." % df, 1)
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continue
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debug.debug(" +++ Merged files %s for %s into %s" % (str(destfiles[df]), df, tempfilename), 2)
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# diff assembled file and config file
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if Tools.diff(df, tempfilename, commentstring, debug):
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debug.debug("File %s has changed" % df, 0)
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if not Tools.user_config_generated(df, cfg):
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debug.debug(" +++ %s not generated by userconfig, backing up." % df, 2)
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# file not generated from userconfig -> back up
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Tools.backup_file(df, debug)
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# copy tmp file to real location
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debug.debug("Copy %s to %s." % (tempfilename, df), 0)
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Tools.copy_file(tempfilename, df, debug)
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# remove tmp
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debug.debug(" +++ Removing temporary file %s." % tempfilename, 2)
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os.remove(tempfilename)
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debug.debug(" ================ process_all_files ===============", 1)
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def main():
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configfile_destinations = [os.environ['HOME'] + "/etc/",
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os.environ['HOME'] + "/.local/etc"]
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configfile = ''
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for directory in configfile_destinations:
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if os.path.isfile(directory + "/userconfig.cfg"):
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configfile = directory + "/userconfig.cfg"
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break
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try:
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try:
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opts, args = getopt.getopt(sys.argv[1:], "hdc:v", ["help", "debug", "config="])
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except getopt.GetoptError as msg:
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raise Usage(msg)
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for option, value in opts:
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if option == "-v":
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debug.addverbose()
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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.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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except Usage as err:
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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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debug.debug("Verbose level is %d" % debug.verbose, 1)
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debug.debug("Using configfile %s." % configfile, 1)
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if not os.path.isfile(configfile):
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Tools.error("No config file specified.")
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return 2
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cfg.setdebug(debug)
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cfg.setfilename(configfile)
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debug.debug("================ main ===============", 1)
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tempclasses = ""
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for h in classchecks.__classes_for_host__():
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tempclasses=tempclasses + str(h) + ","
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debug.debug("+++ Current host is in classes %s" % tempclasses, 1)
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configdir = cfg.get("Main", "configdir")
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for d in os.listdir(configdir):
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destfiles = {}
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name = configdir+"/"+d
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debug.debug("+++ Working in %s" % name, 1)
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if not os.path.isdir(name):
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debug.debug("--- %s is not a directory, skipping." % name, 3)
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continue
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elif d.startswith(".svn") or d.startswith(".git"):
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debug.debug("--- %s is .svn or .git, skipping." % name, 3)
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continue
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elif os.path.isfile(name+"/.ignore"):
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debug.debug("--- %s contains file .ignore, skipping." % name, 3)
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continue
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else:
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debug.debug("+++ Processing files in %s" % name, 2)
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(destfiles, dirConfig) = workdir(name)
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if isinstance(destfiles, dict):
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if len(destfiles.keys()) > 0:
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debug.debug("+++ Building %d files: %s" % (len(destfiles.keys()), destfiles.keys()), 3)
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process_all_files(destfiles, dirConfig)
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else:
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debug.debug("--- No files found for %s, skipping." % name, 1)
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if __name__ == '__main__':
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main()
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