Gaudi Framework, version v20r4
Generated: 8 Jan 2009
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Generated: 8 Jan 2009 |
Class to changes the environment temporarily.
Definition at line 45 of file GaudiTest.py.
Public Member Functions | |
| def | __init__ |
| def | __setitem__ |
| def | __getitem__ |
| def | __delitem__ |
| def | keys |
| def | items |
| def | __contains__ |
| def | restore |
| def | __del__ |
| def | gen_script |
Public Attributes | |
| old_values | |
| env | |
Private Attributes | |
| _keep_same | |
| def GaudiTest::TemporaryEnvironment::__init__ | ( | self, | ||
orig = os.environ, |
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keep_same = False | ||||
| ) |
Create a temporary environment on top of the one specified (it can be another TemporaryEnvironment instance).
Definition at line 49 of file GaudiTest.py.
00049 : 00050 """ 00051 Create a temporary environment on top of the one specified 00052 (it can be another TemporaryEnvironment instance). 00053 """ 00054 #print "New environment" 00055 self.old_values = {} 00056 self.env = orig 00057 self._keep_same = keep_same 00058 def __setitem__(self,key,value):
| def GaudiTest::TemporaryEnvironment::__setitem__ | ( | self, | ||
| key, | ||||
| value | ||||
| ) |
Set an environment variable recording the previous value.
Definition at line 59 of file GaudiTest.py.
00059 : 00060 """ 00061 Set an environment variable recording the previous value. 00062 """ 00063 if key not in self.old_values : 00064 if key in self.env : 00065 if not self._keep_same or self.env[key] != value: 00066 self.old_values[key] = self.env[key] 00067 else: 00068 self.old_values[key] = None 00069 self.env[key] = value 00070 def __getitem__(self,key):
| def GaudiTest::TemporaryEnvironment::__getitem__ | ( | self, | ||
| key | ||||
| ) |
Get an environment variable. Needed to provide the same interface as os.environ.
Definition at line 71 of file GaudiTest.py.
00071 : 00072 """ 00073 Get an environment variable. 00074 Needed to provide the same interface as os.environ. 00075 """ 00076 return self.env[key] 00077 def __delitem__(self,key):
| def GaudiTest::TemporaryEnvironment::__delitem__ | ( | self, | ||
| key | ||||
| ) |
Unset an environment variable. Needed to provide the same interface as os.environ.
Definition at line 78 of file GaudiTest.py.
00078 : 00079 """ 00080 Unset an environment variable. 00081 Needed to provide the same interface as os.environ. 00082 """ 00083 if key not in self.env : 00084 raise KeyError(key) 00085 self.old_values[key] = self.env[key] 00086 del self.env[key] 00087 def keys(self):
| def GaudiTest::TemporaryEnvironment::keys | ( | self | ) |
Return the list of defined environment variables. Needed to provide the same interface as os.environ.
Definition at line 88 of file GaudiTest.py.
00088 : 00089 """ 00090 Return the list of defined environment variables. 00091 Needed to provide the same interface as os.environ. 00092 """ 00093 return self.env.keys() 00094 def items(self):
| def GaudiTest::TemporaryEnvironment::items | ( | self | ) |
Return the list of (name,value) pairs for the defined environment variables. Needed to provide the same interface as os.environ.
Definition at line 95 of file GaudiTest.py.
00095 : 00096 """ 00097 Return the list of (name,value) pairs for the defined environment variables. 00098 Needed to provide the same interface as os.environ. 00099 """ 00100 return self.env.items() 00101 def __contains__(self,key):
| def GaudiTest::TemporaryEnvironment::__contains__ | ( | self, | ||
| key | ||||
| ) |
Operator 'in'. Needed to provide the same interface as os.environ.
Definition at line 102 of file GaudiTest.py.
00102 : 00103 """ 00104 Operator 'in'. 00105 Needed to provide the same interface as os.environ. 00106 """ 00107 return key in self.env 00108 def restore(self):
| def GaudiTest::TemporaryEnvironment::restore | ( | self | ) |
Revert all the changes done to the orignal environment.
Definition at line 109 of file GaudiTest.py.
00109 : 00110 """ 00111 Revert all the changes done to the orignal environment. 00112 """ 00113 for key,value in self.old_values.items(): 00114 if value is None: 00115 del self.env[key] 00116 else: 00117 self.env[key] = value 00118 self.old_values = {} 00119 def __del__(self):
| def GaudiTest::TemporaryEnvironment::__del__ | ( | self | ) |
Revert the changes on destruction.
Definition at line 120 of file GaudiTest.py.
00120 : 00121 """ 00122 Revert the changes on destruction. 00123 """ 00124 #print "Restoring the environment" 00125 self.restore() 00126 def gen_script(self,shell_type):
| def GaudiTest::TemporaryEnvironment::gen_script | ( | self, | ||
| shell_type | ||||
| ) |
Generate a shell script to reproduce the changes in the environment.
Definition at line 127 of file GaudiTest.py.
00127 : 00128 """ 00129 Generate a shell script to reproduce the changes in the environment. 00130 """ 00131 shells = [ 'csh', 'sh', 'bat' ] 00132 if shell_type not in shells: 00133 raise RuntimeError("Shell type '%s' unknown. Available: %s"%(shell_type,shells)) 00134 out = "" 00135 for key,value in self.old_values.items(): 00136 if key not in self.env: 00137 # unset variable 00138 if shell_type == 'csh': 00139 out += 'unsetenv %s\n'%key 00140 elif shell_type == 'sh': 00141 out += 'unset %s\n'%key 00142 elif shell_type == 'bat': 00143 out += 'set %s=\n'%key 00144 else: 00145 # set variable 00146 if shell_type == 'csh': 00147 out += 'setenv %s "%s"\n'%(key,self.env[key]) 00148 elif shell_type == 'sh': 00149 out += 'export %s="%s"\n'%(key,self.env[key]) 00150 elif shell_type == 'bat': 00151 out += 'set %s=%s\n'%(key,self.env[key]) 00152 return out 00153 class TempDir:
Definition at line 55 of file GaudiTest.py.
Definition at line 56 of file GaudiTest.py.
Definition at line 57 of file GaudiTest.py.