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dlange |
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#!/usr/bin/env python
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#
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# June 21, 2008
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# dlange, LLNL
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#
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# Simple script to retrieve ME directory listings
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#
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import md5
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import os
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from os.path import join, getsize
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import sys
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import optparse
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import urllib2
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usage=\
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"""%prog <TYPE> [options].
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Examples:
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%prog -arch slc4_ia32_gcc345 -gen madgraph --cat QCD
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"""
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parser=optparse.OptionParser(usage)
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parser.add_option("-a","--arch",
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help="The CMSSW architecture (default=slc4_ia32_gcc345)",
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default="slc4_ia32_gcc345",
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dest="arch");
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parser.add_option("-g","--gen",
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help="The generator to retrieve MEs for",
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default="",
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dest="gen");
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parser.add_option("-c","--cat",
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help="The category of MEs (eg, QCD)",
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default="",
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dest="cat");
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(options,args) = parser.parse_args() # by default the arg is sys.argv[1:]
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baseDirWeb='http://cmsrep.cern.ch/cmssw/ME/'
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listFileEnding='list'
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cmsswbase=os.environ.get('CMS_PATH')
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#hack for cern software area
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if cmsswbase='/afs/cern.ch/cms':
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cmsswbase='/afs/cern.ch/cms/sw
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if cmsswbase is None:
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print 'Missing CMSSW_BASE variable to define SW area'
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sys.exit(1)
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req=urllib2.Request(baseDirWeb)
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try: website=urllib2.urlopen(req)
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except IOError, e:
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print 'Can not talk to cmsrep web server. Network problem?'
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sys.exit()
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dlist=website.read()
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archList={}
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genList={}
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catList={}
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for line in dlist.split('\n'):
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if ( line.find(listFileEnding)>-1):
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href=line.split('<a')[1].split('</a>')[0].split('">')[1]
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archList[href]=href.split('-')[0]
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genList[href]=href.split('-')[1]
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catList[href]=href.split('-')[2].split('.')[0]
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if options.gen == '':
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print 'no generator (--gen) specified. For this arch, choices are:'
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tmpDict={}
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for ent in archList:
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if archList[ent] == options.arch:
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gen=genList[ent]
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if gen not in tmpDict:
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tmpDict[gen]=1
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print ' ' + gen
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sys.exit(0)
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if options.cat == '':
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print 'no category (--cat) specified. For this arch/generator, choices are:'
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tmpDict={}
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for ent in archList:
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if archList[ent] == options.arch:
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if genList[ent] == options.gen:
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cat=catList[ent]
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if cat not in tmpDict:
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tmpDict[cat]=1
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print ' ' + cat
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sys.exit(0)
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fileExpected=options.arch+'-'+options.gen+'-'+options.cat+'.'+ listFileEnding
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if ( fileExpected not in archList):
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print 'No MEs for arch='+options.arch+' generator='+options.gen+' category='+options.cat+' found'
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print 'Remove --cat and/or --gen arguments to find available'
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print 'options for this architecture'
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sys.exit(0)
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# otherwise we have work to do.
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req2=urllib2.Request(baseDirWeb+'/'+fileExpected)
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try: listFile=urllib2.urlopen(req2)
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except IOError, e:
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print 'Can not talk to cmsrep web server. Network problem?'
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sys.exit()
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listing=listFile.read()
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for line in listing.split('\n'):
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if ( len(line.split(' '))==2):
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file=line.split(' ')[0]
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md5Server=line.split(' ')[1]
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fileOut=cmsswbase+'/'+file[file.find(baseDirWeb)+len(baseDirWeb):]
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print 'Considering: '+fileOut
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needToGet=0
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if ( os.path.exists(fileOut)):
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mysum=md5.md5(open(fileOut).read()).hexdigest()
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if ( mysum == md5Server):
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print ' File already downloaded'
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else:
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print ' Refetching file (changed on server)....'
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needToGet=1
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else:
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print ' Fetching file (new)....'
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needToGet=1
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dir=os.path.dirname(fileOut)
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if not os.path.exists(dir):
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os.makedirs(dir)
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if not os.path.exists(dir):
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print 'Could not create directory to download file'
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print dir
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print 'Permissions ok?'
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sys.exit(1)
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# do we need to fetch the file
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if ( needToGet==1):
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req3=urllib2.Request(file)
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try: listFile=urllib2.urlopen(req3)
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except IOError, e:
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print 'Can not talk to cmsrep web server. Network problem?'
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sys.exit()
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fout=open(fileOut,'w')
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fout.write(listFile.read())
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fout.close()
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print ' done.'
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else:
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if ( line!=''):
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print 'Unknown line.. skipping'
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print line
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