-#!/usr/bin/python
-
-# Interactively prompts for variable values
-# expected arguments are
-# command [default-xml [custom-xml]]
-#
-# Two-steps logic:
-# (1) scans all variables (todo: pass categories as arguments)
-# and prompts for value
-# current value proposed as default
-# also allows to remove site-dependent setting
-# (2) epilogue : allows to
-# list the site-dependent vars with values
-# and to locally (re-)edit a variable from its shell name
-# quit with or without saving
+#!/bin/env python
import sys
-import os
-import re
import readline
+import plc_config
+
+def validator(validated_variables):
+ maint_user = validated_variables["PLC_API_MAINTENANCE_USER"]
+ root_user = validated_variables["PLC_ROOT_USER"]
+ if maint_user == root_user:
+ errStr="PLC_API_MAINTENANCE_USER=%s cannot be the same as PLC_ROOT_USER=%s"%(maint_user,root_user)
+ raise plc_config.ConfigurationException(errStr)
+
+usual_variables = [
+ "PLC_NAME",
+ "PLC_SHORTNAME",
+ "PLC_SLICE_PREFIX",
+ "PLC_ROOT_USER",
+ "PLC_ROOT_PASSWORD",
+ "PLC_MAIL_ENABLED",
+ "PLC_MAIL_SUPPORT_ADDRESS",
+ "PLC_DB_HOST",
+ "PLC_API_HOST",
+ "PLC_WWW_HOST",
+ "PLC_BOOT_HOST",
+ "PLC_NET_DNS1",
+ "PLC_NET_DNS2",
+ ]
+
+configuration={ \
+ 'name':'plc',
+ 'service':"plc",
+ 'usual_variables':usual_variables,
+ 'config_dir':"/etc/planetlab",
+ 'validate_variables':{"PLC_API":"MAINTENANCE_USER","PLC":"ROOT_USER"},
+ 'validator':validator,
+ }
-from plc_config import PLCConfiguration
-
-####################
-release = "$Id"
-
-def_main_config = "/etc/planetlab/default_config.xml"
-def_site_config = "/etc/planetlab/configs/site.xml"
-def_consolidated_config = "/etc/planetlab/plc_config.xml"
-
-command_usage="""Usage: %s [default-xml [site-xml [consolidated-xml]]]
-\t default-xml defaults to %s
-\t site-xml defaults to %s
-\t consolidated-xml defaults to %s
-""" % (sys.argv[0],def_main_config,def_site_config, def_consolidated_config)
-
-####################
-variable_usage= """Special answers :
-#\tShow variable comments
-.\tStops prompting, return to mainloop
-/\tCleans any site-defined value, reverts to default
-=\tShows default value
->\tSkips to next category
-?\tThis help
-"""
-
-def usage ():
- print(command_usage)
- sys.exit(1)
-
-####################
-def get_value (config, category_id, variable_id):
- (category, variable) = config.get (category_id, variable_id)
- return variable['value']
-
-# refrain from using plc_config's _sanitize
-def get_varname (config, category_id, variable_id):
- (category, variable) = config.get (category_id, variable_id)
- return (category_id+"_"+variable['id']).upper()
-
-def prompt_variable (cdef, cread, cwrite, category, variable):
-
- assert category.has_key('id')
- assert variable.has_key('id')
-
- category_id = category ['id']
- variable_id = variable['id']
-
- while True:
- default_value = get_value(cdef,category_id,variable_id)
- current_value = get_value(cread,category_id, variable_id)
- varname = get_varname (cread,category_id, variable_id)
-
- prompt = "== %s : [%s] " % (varname,current_value)
- try:
- answer = raw_input(prompt).strip()
- except EOFError :
- raise Exception ('BailOut')
-
- # no change
- if (answer == "") or (answer == current_value):
- return None
- elif (answer == "."):
- raise Exception ('BailOut')
- elif (answer == ">"):
- raise Exception ('NextCategory')
- elif (answer == "#"):
- if friendly_name is not None:
- print ("### " + friendly_name)
- if comments == None:
- print ("!!! No comment associated to %s" % varname)
- else:
- for line in comments:
- print ("# " + line)
- elif (answer == "?"):
- print variable_usage.strip()
- elif (answer == "="):
- print ("%s defaults to %s" %(varname,default_value))
- # revert to default : remove from cwrite (i.e. site-config)
- elif (answer == "/"):
- cwrite.delete(category_id,variable_id)
- print ("%s reverted to %s" %(varname,default_value))
- return
- else:
- variable['value'] = answer
- cwrite.set(category,variable)
- return
-
-####################
-def prompt_all_variables (cdef, cread, cwrite):
- try:
- for (category_id, (category, variables)) in cread.variables().iteritems():
- print ("========== Category = %s" % category_id)
- for variable in variables.values():
- try:
- newvar = prompt_variable (cdef, cread, cwrite, category, variable)
- except Exception, inst:
- if (str(inst) == 'NextCategory'): break
- else: raise
-
- except Exception, inst:
- if (str(inst) == 'BailOut'): return
- else: raise
-
-
-####################
-def consolidate (main_config, site_config, consolidated_config):
- try:
- conso = PLCConfiguration (main_config)
- conso.load (site_config)
- conso.save (consolidated_config)
- except Exception, inst:
- print "Could not consolidate, %s" % (str(inst))
- return
- print ("Overwote %s\n\tfrom %s\n\tand %s"%(consolidated_config,main_config,site_config))
-
-####################
-def restart_plc ():
- print ("==================== Stopping plc")
- os.system("service plc stop")
- print ("==================== Starting plc")
- os.system("service plc start")
-
-####################
-mainloop_usage= """Available commands
-c\tEdits commonly tuned variables
-e\tEdits all variables
-p\tPrints all locally-customized vars and values
-e <var>\tPrompts (edit) fro variable <var>
-p <var>\tShows current setting for <var>
-l\tlists all known variables
-w\tSaves and quit
-W\tsaves, consolidates and quit
-r\trestarts plc service
-q\tQuits without saving
-"""
-
-re_mainloop_var="^(?P<command>[pe])[ \t]+(?P<varname>\w+)$"
-matcher_mainloop_var=re.compile(re_mainloop_var)
-
-common_variables=("PLC_NAME",
- "PLC_ROOT_USER",
- "PLC_ROOT_PASSWORD",
- "PLC_MAIL_SUPPORT_ADDRESS",
- "PLC_DB_HOST",
- "PLC_API_HOST",
- "PLC_WWW_HOST",
- "PLC_BOOT_HOST",
- "PLC_NET_DNS1",
- "PLC_NET_DNS2")
-
-def mainloop (cdef, cread, cwrite,main_config, site_config, consolidated_config):
- while True:
- try:
- answer = raw_input("Enter command (c for usual changes, w to save, ? for help) ").strip()
- except EOFError:
- answer =""
- if (answer == "") or (answer == "?") or (answer == "h"):
- print mainloop_usage
- elif (answer == "q"):
- # todo check confirmation
- return
- elif (answer == "e"):
- prompt_all_variables(cdef, cread, cwrite)
- elif (answer.lower() == "w"):
- try:
- cwrite.save(site_config)
- except:
- print ("Could not save -- fix write access on %s" % site_config)
- break
- print ("Wrote %s" % site_config)
- if (answer == "W"):
- consolidate(main_config, site_config, consolidated_config)
- print ("You might want to type 'r' (restart plc) or 'q' (quit)")
- elif (answer == "l"):
- print ("Config involves the following variables")
- sys.stdout.write(cread.output_variables())
- elif (answer == "p"):
- print ("Current site config")
- sys.stdout.write(cwrite.output_shell(False))
- elif (answer == "c"):
- try:
- for varname in common_variables:
- (category,variable) = cdef.locate_varname(varname)
- prompt_variable(cdef, cread, cwrite, category, variable)
- except Exception, inst:
- if (str(inst) != 'BailOut'):
- raise
- elif (answer == "r"):
- restart_plc()
- else:
- groups_var = matcher_mainloop_var.match(answer)
- if (groups_var):
- command = groups_var.group('command')
- varname = groups_var.group('varname')
- (category,variable) = cdef.locate_varname(varname)
- if not category:
- print "Unknown variable %s" % varname
- elif (command == 'p'):
- print ("%s = %s" % (varname,get_value(cwrite,
- category['id'],
- variable['id'])))
- else:
- try:
- prompt_variable(cdef, cread, cwrite, category,variable)
- except Exception, inst:
- if (str(inst) != 'BailOut'):
- raise
- else:
- print ("Unknown command >%s<" % answer)
-
-####################
-def main ():
-
- save = True
+if __name__ == '__main__':
command=sys.argv[0]
argv = sys.argv[1:]
- if len(argv) == 0:
- (main_config,site_config,consolidated_config) = (def_main_config, def_site_config, def_consolidated_config)
- elif len(argv) == 1:
- (main_config,site_config,consolidated_config) = (argv[1], def_site_config, def_consolidated_config)
- elif len(argv) == 2:
- (main_config, site_config,consolidated_config) = (argv[1], argv[2], def_consolidated_config)
- elif len(argv) == 3:
- (main_config, site_config,consolidated_config) = argv
- else:
- usage()
-
- try:
- # the default settings only - read only
- cdef = PLCConfiguration(main_config)
-
- # in effect : default settings + local settings - read only
- cread = PLCConfiguration(main_config)
-
- except:
- print ("default config files not found, is myplc installed ?")
- return 1
-
- # local settings only, will be modified & saved
- cwrite=PLCConfiguration()
-
- try:
- cread.load(site_config)
- cwrite.load(site_config)
- except:
- cwrite = PLCConfiguration()
-
- print ("This is %s - %s -- Type ? at the prompt for help" %(command,release))
- mainloop (cdef, cread, cwrite,main_config, site_config, consolidated_config)
- return 0
-
-if __name__ == '__main__':
- main()
+ plc_config.main(command,argv,configuration)
git://git.onelab.eu / myplc.git / blobdiff