Config Namespace Reference

Classes
class	_ParameterModifier
class	FilteredStream
class	Modifier
class	ModifierChain
class	Process
class	SubProcess
class	TestMakePSet
class	TestModuleCommand

Functions
def	checkImportPermission
def	findProcess

Variables
tuple	options = Options()

Function Documentation

def Config.checkImportPermission	(		minLevel = 2,
			allowedPatterns = []
	)

Raise an exception if called by special config files. This checks
the call or import stack for the importing file. An exception is raised if
the importing module is not in allowedPatterns and if it is called too deeply:
minLevel = 2: inclusion by top lvel cfg only
minLevel = 1: No inclusion allowed
allowedPatterns = ['Module1','Module2/SubModule1'] allows import
by any module in Module1 or Submodule1

Definition at line 27 of file Config.py.

References spr.find().

def checkImportPermission(minLevel = 2, allowedPatterns = []):
    """
    Raise an exception if called by special config files. This checks
    the call or import stack for the importing file. An exception is raised if
    the importing module is not in allowedPatterns and if it is called too deeply:
    minLevel = 2: inclusion by top lvel cfg only
    minLevel = 1: No inclusion allowed
    allowedPatterns = ['Module1','Module2/SubModule1'] allows import
    by any module in Module1 or Submodule1
    """

    import inspect
    import os

    ignorePatterns = ['FWCore/ParameterSet/Config.py','<string>']
    CMSSWPath = [os.environ['CMSSW_BASE'],os.environ['CMSSW_RELEASE_BASE']]

    # Filter the stack to things in CMSSWPath and not in ignorePatterns
    trueStack = []
    for item in inspect.stack():
        inPath = False
        ignore = False

        for pattern in CMSSWPath:
            if item[1].find(pattern) != -1:
                inPath = True
                break
        if item[1].find('/') == -1: # The base file, no path
            inPath = True

        for pattern in ignorePatterns:
            if item[1].find(pattern) != -1:
                ignore = True
                break

        if inPath and not ignore:
            trueStack.append(item[1])

    importedFile = trueStack[0]
    importedBy   = ''
    if len(trueStack) > 1:
        importedBy = trueStack[1]

    for pattern in allowedPatterns:
        if importedBy.find(pattern) > -1:
            return True

    if len(trueStack) <= minLevel: # Imported directly
        return True

    raise ImportError("Inclusion of %s is allowed only by cfg or specified cfi files."
                      % importedFile)