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#! /usr/bin/env python
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import sys
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import optparse
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from subprocess import Popen,PIPE
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def listFilesInCastor(castor_dir,type,prefix):
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p1 = Popen(['nsls',castor_dir],stdout=PIPE)
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p2 = Popen(['grep',type],stdin=p1.stdout,stdout=PIPE)
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files = [prefix + castor_dir + "/" + item[:-1] for item in p2.stdout]
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p2.stdout.close()
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return files
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def haddFilesInCastor(castor_dir,result_file,type,prefix,suffix,option):
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from subprocess import call
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files = listFilesInCastor(castor_dir,type,prefix)
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if suffix: files = [item + suffix for item in files]
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cmd = ['hadd']
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if option: cmd.append(option)
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cmd.append(result_file)
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cmd.extend(files)
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#print cmd
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#return 0
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retcode = call(cmd)
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return retcode
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if __name__ == '__main__':
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parser = optparse.OptionParser(usage="usage: %prog [options]")
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parser.add_option("-f","--file", dest="file", metavar="FILE", help="output file")
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parser.add_option("-d","--dir", dest="dir", metavar="DIR", help="add files in DIR")
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parser.add_option("-t","--type", dest="type", default="root", metavar="TYPE", help="select only files with substring TYPE (Default: 'root')")
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parser.add_option("-p","--prefix", dest="prefix", default="rfio:", metavar="PREFIX", help="prepend PREFIX to file path (Default 'rfio:')")
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parser.add_option("-s","--suffix", dest="suffix", default="", metavar="SUFFIX", help="append SUFFIX to file path")
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parser.add_option("-o","--option", dest="option", default="", metavar="OPTION", help="pass OPTION to hadd command")
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(input, args) = parser.parse_args()
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if not input.dir: parser.error('must set directory option')
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retcode = haddFilesInCastor(castor_dir = input.dir,
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result_file = input.file,
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type = input.type,
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prefix = input.prefix,
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suffix = input.suffix,
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option = input.option)
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sys.exit(retcode)
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