def addToSearchPath(n, _1, _2):
'''
Add entries to the search path expanding variables inside.
'''
entries = Variable.List('_SEARCH_PATH')
entries.set(n, os.pathsep, environment=self.variables)
self.searchPath.extend(entries)
def declare(self, name, vartype, local):
'''Creates an instance of new variable. It loads values from the OS if the variable is not local.'''
if self.asWriter:
self._writeVarToXML(name, 'declare', '', vartype, local)
if not isinstance(local, bool):
if str(local).lower() == 'true':
local = True
else:
local = False
if name in self.variables.keys():
if self.variables[name].local != local:
raise Variable.EnvError(name, 'redeclaration')
else:
if vartype.lower() == "list":
if not isinstance(self.variables[name],Variable.List):
raise Variable.EnvError(name, 'redeclaration')
else:
if not isinstance(self.variables[name],Variable.Scalar):
raise Variable.EnvError(name, 'redeclaration')
if vartype.lower() == "list":
a = Variable.List(name, local)
else:
a = Variable.Scalar(name, local)
if self.loadFromSystem and not local and name in os.environ:
a.expandVars = False # disable var expansion when importing from the environment
a.set(os.environ[name], os.pathsep, environment=self.variables)
a.expandVars = True
self.variables[name] = a
def default(self, name, value):
'''Sets a single variable only if it is not already set!'''
name = str(name)
if self.asWriter:
self._writeVarToXML(name, 'default', value)
else:
# Here it is different from the other actions because after a 'declare'
# we cannot tell if the variable was already set or not.
# FIXME: improve declare() to allow for a default.
if name not in self.variables:
if self._guessType(name) == 'list':
v = Variable.List(name, False)
else:
v = Variable.Scalar(name, False)
if self.loadFromSystem and name in os.environ:
v.set(os.environ[name], os.pathsep, environment=self.variables)
else:
v.set(value, self.separator, environment=self.variables)
self.variables[name] = v
else:
v = self.variables[name]
if not v.val:
v.set(value, self.separator, environment=self.variables)
