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farinafa |
1.1 |
import os, sys, popen2
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# env to be preserved
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preserveList = ['SCRAMRT_LOCALRT', 'LOCALRT', 'BASE_PATH', 'CMSSW_SEARCH_PATH', 'CMSSW_VERSION',
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'CMSSW_BASE','CMSSW_RELEASE_BASE', 'CMSSW_DATA_PATH']
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reverseList = ['LD_LIBRARY_PATH', 'PATH', 'PYTHONPATH']
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# init
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if 'CRAB_UNFOLD_ENV' in os.environ:
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sys.exit(0)
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if 'CMSSW_BASE' not in os.environ:
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# CMSSW env likely not set, nothing to do
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print 'echo "CMSSW_BASE not set"'
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sys.exit(-1)
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shKind = 'csh'
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if 'bash' in os.environ['SHELL']:
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shKind = 'sh'
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# extract the env setting introduced by scram
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curDir = os.getcwd()
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os.chdir(str(os.environ['CMSSW_BASE'])+'/src')
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sout, sin, serr = popen2.popen3('echo `scramv1 runtime -%s`'%str(shKind))
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os.chdir(curDir)
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out = sout.readlines()[0]
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err = serr.readlines()
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sout.close()
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sin.close()
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serr.close()
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if len(err) != 0:
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print 'echo "Error while summoning scramv1: %s"'%out
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sys.exit(stat)
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out = out.replace('export ','').replace('=',' ').replace('setenv ', '')
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outl = out.split(';')[:-1]
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pre_env = {}
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drop_out_cmd = ''
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for e in outl:
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v = e.strip()
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k = str(v.split(' ')[0])
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v = str(v.split(' ')[1].replace('"','')).split(':')
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if 'SCRAMRT' not in k:
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pre_env[k] = []+v
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else:
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drop_out_cmd = drop_out_cmd + 'unset %s;\n'%k
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# unfold the current env from the scram attributes
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unfold_cmd = 'setenv CRAB_UNFOLD_ENV "1";\n'
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if shKind == 'sh':
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unfold_cmd = 'export CRAB_UNFOLD_ENV="1";\n'
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if '-create' in sys.argv[1:]:
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for ek in ['PATH', 'PYTHONPATH']:
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entry = ''+str(os.environ[ek])
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purgedList = [ i for i in entry.split(':') if i not in pre_env[ek] ]
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purgedList = pre_env[ek] + purgedList
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entry = str(purgedList).replace('[','').replace(']','')
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entry = entry.replace('\'','').replace(', ',':')
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if shKind == 'sh':
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print 'export %s="%s";\n'%(ek, entry)
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else:
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print 'setenv %s "%s";\n'%(ek, entry)
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sys.exit(0)
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for v in os.environ:
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if v in preserveList:
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continue
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if 'SCRAMRT' in v:
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unfold_cmd = unfold_cmd + 'unset %s;\n'%v
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continue
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if v not in pre_env:
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continue
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entry = ''+str(os.environ[v])
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purgedList = [ i for i in entry.split(':') if i not in pre_env[v] ]
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# manage reverseList special cases (ie move entries at the end of the env var)
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if v in reverseList:
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purgedList = purgedList + pre_env[v]
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if len(purgedList)==0:
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unfold_cmd = unfold_cmd + 'unset %s;\n'%v
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continue
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entry = str(purgedList).replace('[','').replace(']','')
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entry = entry.replace('\'','').replace(', ',':')
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if shKind == 'sh':
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unfold_cmd = unfold_cmd + 'export %s="%s";\n'%(v, entry)
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else:
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unfold_cmd = unfold_cmd + 'setenv %s "%s";\n'%(v, entry)
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# export the environment
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print drop_out_cmd + unfold_cmd
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sys.exit(0)
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