AIL-framework/bin/Update-conf.py

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#!/usr/bin/env python3.5
# -*-coding:UTF-8 -*
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import configparser
from configparser import ConfigParser as cfgP
import os
from collections import OrderedDict
import sys
import shutil
#return true if the configuration is up-to-date
def main():
configfile = os.path.join(os.environ['AIL_BIN'], 'packages/config.cfg')
configfileBackup = os.path.join(os.environ['AIL_BIN'], 'packages/config.cfg') + '.backup'
if not os.path.exists(configfile):
raise Exception('Unable to find the configuration file. \
Did you set environment variables? \
Or activate the virtualenv.')
configfileSample = os.path.join(os.environ['AIL_BIN'], 'packages/config.cfg.sample')
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cfg = configparser.ConfigParser()
cfg.read(configfile)
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cfgSample = configparser.ConfigParser()
cfgSample.read(configfileSample)
sections = cfgP.sections(cfg)
sectionsSample = cfgP.sections(cfgSample)
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missingSection = []
dicoMissingSection = {}
missingItem = []
dicoMissingItem = {}
for sec in sectionsSample:
if sec not in sections:
missingSection += [sec]
dicoMissingSection[sec] = cfgP.items(cfgSample, sec)
else:
setSample = set(cfgP.options(cfgSample, sec))
setNormal = set(cfgP.options(cfg, sec))
if setSample != setNormal:
missing_items = list(setSample.difference(setNormal))
missingItem += [sec]
list_items = []
for i in missing_items:
list_items.append( (i, cfgSample.get(sec, i)) )
dicoMissingItem[sec] = list_items
if len(missingSection) == 0 and len(missingItem) == 0:
#print("Configuration up-to-date")
return True
print("/!\\ Configuration not complete. Missing following configuration: /!\\")
print("+--------------------------------------------------------------------+")
for section in missingSection:
print("["+section+"]")
for item in dicoMissingSection[section]:
print(" - "+item[0])
for section in missingItem:
print("["+section+"]")
for item in dicoMissingItem[section]:
print(" - "+item[0])
print("+--------------------------------------------------------------------+")
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resp = input("Do you want to auto fix it? [y/n] ")
if resp != 'y':
return False
else:
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resp2 = input("Do you want to keep a backup of the old configuration file? [y/n] ")
if resp2 == 'y':
shutil.move(configfile, configfileBackup)
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#Do not keep item ordering in section. New items appened
for section in missingItem:
for item, value in dicoMissingItem[section]:
cfg.set(section, item, value)
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#Keep sections ordering while updating the config file
new_dico = add_items_to_correct_position(cfgSample._sections, cfg._sections, missingSection, dicoMissingSection)
cfg._sections = new_dico
with open(configfile, 'w') as f:
cfg.write(f)
return True
''' Return a new dico with the section ordered as the old configuration with the updated one added '''
def add_items_to_correct_position(sample_dico, old_dico, missingSection, dicoMissingSection):
new_dico = OrderedDict()
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positions = {}
for pos_i, sec in enumerate(sample_dico):
if sec in missingSection:
positions[pos_i] = sec
for pos_i, sec in enumerate(old_dico):
if pos_i in positions:
missSection = positions[pos_i]
new_dico[missSection] = sample_dico[missSection]
new_dico[sec] = old_dico[sec]
return new_dico
if __name__ == "__main__":
if main():
sys.exit()
else:
sys.exit(1)