3 # Interactively prompts for variable values
4 # expected arguments are
5 # command -d [default-xml [custom-xml [ consolidated-xml ]]]
7 # -d is for the myplc-devel package
9 # we use 3 instances of PLCConfiguration throughout:
10 # cdef : models the defaults, from plc_default.xml
11 # cread : merged from plc_default & configs/site.xml
12 # cwrite : site.xml + pending changes
19 from optparse import OptionParser
21 from geni.util.config import Config
23 usual_variables = ["GENI_REGISTRY_ROOT_AUTH",
24 "GENI_REGISTRY_LEVEL1_AUTH",
25 "GENI_REGISTRY_ENABLED",
28 "GENI_AGGREGATE_ENABLED",
29 "GENI_AGGREGATE_HOST",
30 "GENI_AGGREGATE_PORT",
42 mainloop_usage= """Available commands:
43 Uppercase versions give variables comments, when available
44 u/U\t\t\tEdit usual variables
45 w/W\t\t\tWrite / Write & reload
46 q\t\t\tQuit (without saving)
49 l/L [<var>]\tShow Locally modified variables/values
50 s/S [<var>]\tShow variables/values (all, in category, single)
51 e/E [<var>]\tEdit variables (all, in category, single)
55 command_usage="%prog [options]"
57 Unless you specify the -d option, meaning you want to configure
58 myplc-devel instead of regular myplc, in which case"""
60 variable_usage= """Edit Commands :
61 .\tStops prompting, return to mainloop
62 =\tShows default value
66 def save(changes, config_file):
71 geni_config = Config()
72 plc_vars = {'PLC_API_MAINTENANCE_PASSWORD': 'GENI_PLC_PASSWORD',
73 'PLC_API_MAINTENCE_USER': 'GENI_PLC_PASSWORD'
76 from geni.util.config import plcConfig
77 plc_config = plcConfig
82 for var in dir(geni_config):
83 if var.startswith('GENI'):
84 value = eval("geni_config.%s" % var)
87 # some defaults come from plc_config
88 for var in dir(plc_config):
90 value = eval("plc_config.%s" % var)
91 defaults[plc_vars[var]] = value
95 def prompt_variable(variable, default_config):
96 if variable in default_config:
97 default_value = default_config[variable]
102 prompt = "%(variable)s : [%(default_value)s] " % locals()
104 answer = raw_input(prompt).strip()
106 raise Exception ('BailOut')
107 except KeyboardInterrupt:
109 raise Excception ('BailOut')
111 if (answer == "") or (answer == default_value):
113 elif (answer == "."):
114 raise Exception ('BailOut')
115 elif (answer == "?"):
116 print variable_usage.strip()
117 elif (answer == "="):
118 print ("%s defaults to %s" %(variable,default_value))
122 def mainloop (default_config, config_file):
126 answer = raw_input("Enter command (u for usual changes, w to save, ? for help) ").strip()
129 except KeyboardInterrupt:
133 if (answer == "") or (answer in "?hH"):
139 if (answer in ["q","Q"]):
140 # todo check confirmation
142 elif (answer == "w"):
143 save(changes, config_file)
144 elif (answer == "u"):
146 for varname in usual_variables:
147 changes[varname] = prompt_variable(varname, default_config)
148 except Exception, inst:
149 if (str(inst) != 'BailOut'):
151 elif (answer in ["e","E"]):
153 prompt_variable (cdef,cread,cwrite,category,variable,
155 except Exception, inst:
156 if (str(inst) != 'BailOut'):
158 elif (answer in "vVsSlL"):
160 #show_variable (c1,c2,c3,category,variable,show_value,show_comments)
162 print ("Unknown command >%s< -- use h for help" % answer)
170 parser = OptionParser(usage=command_usage, version="%prog 1.0")
171 parser.set_defaults(config_dir="/etc/geni",
173 parser.add_option("","--configdir",dest="config_dir",help="specify configuration directory")
174 parser.add_option("","--usual_variable",dest="usual_variables",action="append", help="add a usual variable")
176 (config,args) = parser.parse_args()
178 parser.error("too many arguments")
180 config_dir = parser.values.config_dir
181 config_file = os.sep.join([config_dir, 'geni_config'])
182 defaults = get_defaults()
183 mainloop (defaults, config_file)
186 if __name__ == '__main__':