def pickTag(inputdir, options) :
tag = options.tag if options.tag else guessLatestTagFromLatestRootFiles(inputdir, options.debug)
tag = tag if tag else guessMonthDayTagFromLastRootFile(inputdir, options.debug) # can get it wrong if from single file
tag = tag.strip('_') # leading/trailing separators are not part of the tag
if not isMonthDayTag(tag) : print "warning, non-standard tag might lead to bugs '%s'"%tag
if options.verbose : print "using tag %s"%tag
return tag
(options, args) = parser.parse_args()
if len(args) != 1 : parser.error("incorrect number of arguments")
inputdir = args[0]
allBkg = options.allBkg
allBkgButHf = options.allBkgButHf
alsoph = options.alsoplaceholders
group_regexp = options.groupregexp
verbose = options.verbose
debug = options.debug
dryrun = options.dryrun
onedata = options.onedata
overwrite = options.overwrite
outdir = options.output if options.output else inputdir+'/merged/'
tag = (options.tag if options.tag
else guessLatestTagFromLatestRootFiles(inputdir, debug))
tag = tag if tag else guessMonthDayTagFromLastRootFile(inputdir, debug)
tag = tag.strip('_') # leading/trailing separators are not part of the tag
if verbose :
print "Options:"
print '\n'.join(["%s : %s" % (o, eval(o))
for o in ['inputdir', 'outdir', 'group_regexp', 'tag', 'overwrite',
'allBkg', 'allBkgButHf', 'onedata',
'verbose', 'debug',]])
if not isMonthDayTag(tag) : print "warning, non-standard tag might lead to bugs '%s'"%tag
if not os.path.isdir(outdir) :
os.mkdir(outdir)
if verbose : print "created directory '%s'"%outdir
allDatasets = [d for d in datasets if alsoph or not d.placeholder]
if onedata : allDatasets = setSameGroupForAllData(allDatasets)
filenamesByGroup = collections.defaultdict(list)
rootfiles = filter(os.path.isfile, glob.glob(inputdir + "*.root"))
