9 from optparse import OptionParser
14 d_registry= "http://www.planet-lab.org:12345"
15 d_slicemgr= "http://www.planet-lab.org:12347"
16 # d_aggmgr= "http://www.planet-lab.org:12346"
19 # local code name, config variable name, default
20 ('slice', 'SFI_SLICE' , None, '-s','--slice', "slice HRN"),
21 ('user', 'SFI_USER', None, '-u','--user', "user HRN"),
22 ('authority', 'SFI_AUTH', None, '-t','--auth', "users's authority HRN"),
23 ('registry', 'SFI_REGISTRY', d_registry, '-r','--registry', "registry API URL"),
24 ('slicemgr', 'SFI_SM' , d_slicemgr, '-m','--slicemgr', "slice API URL"),
25 # ('aggmgr', 'SFI_AM', d_aggmgr, '-a','--aggregate', "aggregate manager's URL"),
26 ('verbose', 'SFACE_VERBOSE',True, '-v','--verbose', "UI verbosity"),
27 ('debug', 'SFACE_DEBUG', False, '-D','--debug', "UI debug flag"),
31 print 'WARNING - should pass config dir'
32 self.dirname=os.path.expanduser("~/.sfi/")
35 def get_dirname (self):
38 # warning, might lose unsaved data..
39 def set_dirname (self, dirname):
44 return [ tup[0] for tup in Config.supported ]
46 def field_labels (self):
47 return [ (tup[0],tup[5]) for tup in Config.supported ]
49 def sfi_field (self, sfi):
50 for tuple in Config.supported:
51 if tuple[1]==sfi: return tuple[0]
54 def sfi_name(self, field):
55 for tuple in Config.supported:
56 if tuple[0] == field: return tuple[1]
59 def field_default (self, field):
60 for tuple in Config.supported:
61 if tuple[0]==field: return tuple[2]
64 # xxx todo - need for validators - not even sure this is still useful
65 def define_accessors (self):
66 for (field,sfi,default,_,__,___) in Config.supported:
67 self.define_accessor (field,sfi,default)
69 def define_accessor (self,field,sfi,default):
70 get_name="get" + field.capitalize();
71 if not hasattr(Config,get_name):
72 def get_call (self): return getattr(self,field)
73 setattr (Config, get_name, get_call)
74 set_name="set" + field.capitalize();
75 if not hasattr(Config,set_name):
76 def set_call (self, newvalue): setattr (self, field, newvalue)
77 setattr (Config, set_name, set_call)
79 # the generic form of accessors
80 def get(self,field): return getattr(self,field)
81 def set(self,field,value): setattr(self,field,value)
83 def config_file (self):
84 return os.path.join(self.get_dirname(),"sfi_config")
86 def read_config(self):
89 execfile(self.config_file(), tmp)
91 print "Warning - no config file found %s"%self.config_file()
93 for (field,sfi,default,_,__,___) in Config.supported:
94 if tmp.has_key(sfi):setattr(self,field,tmp[sfi])
95 else: setattr(self,field,default)
96 self.display("After reading config from %s"%self.config_file())
98 def display (self, msg):
101 for k in self.fields():
102 print "%-20s: %r"%(k, self.get(k))
104 def save_config(self):
105 configdir = self.get_dirname()
106 if not os.path.exists(configdir):
107 os.makedirs(configdir)
109 configfile = self.config_file()
110 if not os.path.exists(configfile):
111 open(configfile, "w").close()
113 tmpfile = configfile + ".tmp"
115 out = open(tmpfile, "w")
118 fields = self.fields()
119 for line in open(configfile, "r"):
122 sfi, val = line.split('=')
125 field = self.sfi_field(sfi)
127 written_fields.append(field)
128 newval = self.get(field)
129 if not self.is_bool_field(field):
131 line = "%s = %s\n" % (sfi, newval)
135 print 'line',lineno,'ignored',line
138 # append other field in the end
139 new_fields = [f for f in fields if f not in written_fields]
140 for field in new_fields:
141 sfi = self.sfi_name(field)
142 val = self.get(field)
143 if not self.is_bool_field(field):
145 out.write("%s = %s\n" % (sfi, val))
148 os.unlink(configfile)
149 os.rename(tmpfile, configfile)
151 print 'stored config in %s'%configfile
153 # check if a field is a boolean field
154 def is_bool_field(self, field):
155 for (f,_,default,__,___,____) in Config.supported:
156 if field==f: return isinstance(default,bool)
159 # to accept strings as bools
160 def is_true(self,value):
161 if value==True: return True
162 if isinstance(value,types.StringTypes) and value.lower()=='true': return True
164 def add_options_to_OptionParser (self, parser):
165 parser.add_option ("-d","--dir",dest='dirname',action='store',
166 default=os.path.expanduser("~/.sfi/"),
167 help="sfi config dir")
168 for (field,_,default,short,long,msg) in Config.supported:
169 if isinstance(default,bool):
170 parser.add_option(short,long,dest=field,action="store_true",help=msg)
172 parser.add_option(short,long,dest=field,action="store",default=None, help=msg)
174 def update_from_OptionParser (self, optparse_options):
175 self.set_dirname(optparse_options.dirname)
176 print 'setting dir',self.dirname
177 for field in self.fields():
178 if not hasattr(optparse_options,field) : continue
179 value=getattr(optparse_options,field)
180 if value is not None:
181 setattr(self,field,getattr(optparse_options,field))
183 # def setUser(self, user):
184 # Config.SFI_USER = user
186 # # Should probably get authority from user record instead...
187 # a = user.split('.')
188 # Config.SFI_AUTH = '.'.join(a[:len(a)-1])
190 def fullpath (self, filename): return os.path.join(self.get_dirname(),filename)
192 def getSliceRSpecFile(self): return self.fullpath("%s.rspec" % self.getSlice())
194 def getSliceRecordFile(self): return self.fullpath ("%s.record" % self.getSlice())
196 def getAuthorityRecordFile(self): return self.fullpath ("%s/%s.record" % self.getAuthority())
198 def getAuthorityListFile(self, i=None):
199 if (i != None) and (i != 0):
200 return self.fullpath ("%s_list.record.%d" % (self.getAuthority(),i))
202 return self.fullpath ("%s_list.record" % self.getAuthority())
205 # configuration singleton
207 config.define_accessors()