96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
#
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# Scons variable importer
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#
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# Version 1.1
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# 16-Aug-2019
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#
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import os
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def _setvariable(env,name,value):
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"""Sets SCons variable.
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Sets Scons variable name in environment env to value
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"""
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kw={}
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kw[name]=value
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env.Replace(**kw)
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def _setenvvariable(env,name,value):
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"""Sets SCons environment variable.
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Sets Scons environment variable name in environment env to value.
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This variable will be used as environment variable for
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external jobs started by SCons.
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"""
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env['ENV'][name]=value
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def importVariable(env,varlist=None,target=None,prefix=None):
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"""Imports variables from OS to SCons environment.
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Imports environment variables from Operation System into SCons
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variable.
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keyword arguments:
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env -- SCons environment to be imported into
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varlist -- list or environment variable name to be imported
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target -- output variable names (optional)
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prefix -- import all variables starting with this prefix
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"""
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_importcore(env,varlist,target,prefix,_setvariable)
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def importEnvironment(env,varlist=None,target=None,prefix=None):
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"""Imports variables from OS to SCons environment.
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Imports environment variables from Operation System into SCons
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variable.
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keyword arguments:
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env -- SCons environment to be imported into
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varlist -- list or environment variable name to be imported
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target -- output variable names (optional)
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prefix -- import all variables starting with this prefix
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"""
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_importcore(env,varlist,target,prefix,_setenvvariable)
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def _importcore(env,varlist,targets,prefix,setter):
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"""Imports env. variables from OS using setter.
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keyword arguments:
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env -- SCons environment to be imported into
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varlist -- list or environment variable name to be imported
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targets -- target variable names if you want to import variable
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using different name
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prefix -- import all variables starting with this prefix
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setter -- function for setting variable in env
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"""
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if varlist:
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if not isinstance(varlist, list):
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if isinstance(varlist, str):
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varlist=[varlist]
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else:
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raise TypeError("varlist must be list or string")
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if targets:
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if not isinstance(targets, list):
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if isinstance(targets, str):
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targets=[targets]
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else:
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raise TypeError("targets must be list of string")
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for i in range(0,len(varlist)):
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value=os.environ.get(varlist[i])
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if value:
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if targets:
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setter(*[env,targets[i],value])
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else:
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setter(*[env,varlist[i],value])
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if prefix:
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if not isinstance(prefix, str):
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raise TypeError("prefix must be string")
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for i in os.environ.keys():
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if i.startswith(prefix):
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setter(*[env,i,os.environ.get(i)])
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