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356 lines
12 KiB
356 lines
12 KiB
#!/usr/bin/python
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#
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# Copyright (C) 2014 IBM Corporation and Others. All Rights Reserved.
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#
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# @author Steven R. Loomis <srl@icu-project.org>
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#
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# This tool slims down an ICU data (.dat) file according to a config file.
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#
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# See: http://bugs.icu-project.org/trac/ticket/10922
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#
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# Usage:
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# Use "-h" to get help options.
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import sys
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import shutil
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# for utf-8
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reload(sys)
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sys.setdefaultencoding("utf-8")
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import optparse
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import os
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import json
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import re
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endian=sys.byteorder
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parser = optparse.OptionParser(usage="usage: mkdir tmp ; %prog -D ~/Downloads/icudt53l.dat -T tmp -F trim_en.json -O icudt53l.dat" )
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parser.add_option("-P","--tool-path",
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action="store",
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dest="toolpath",
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help="set the prefix directory for ICU tools")
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parser.add_option("-D","--input-file",
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action="store",
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dest="datfile",
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help="input data file (icudt__.dat)",
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) # required
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parser.add_option("-F","--filter-file",
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action="store",
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dest="filterfile",
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help="filter file (JSON format)",
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) # required
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parser.add_option("-T","--tmp-dir",
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action="store",
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dest="tmpdir",
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help="working directory.",
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) # required
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parser.add_option("--delete-tmp",
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action="count",
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dest="deltmpdir",
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help="delete working directory.",
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default=0)
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parser.add_option("-O","--outfile",
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action="store",
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dest="outfile",
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help="outfile (NOT a full path)",
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) # required
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parser.add_option("-v","--verbose",
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action="count",
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default=0)
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parser.add_option('-L',"--locales",
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action="store",
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dest="locales",
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help="sets the 'locales.only' variable",
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default=None)
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parser.add_option('-e', '--endian', action='store', dest='endian', help='endian, big, little or host, your default is "%s".' % endian, default=endian, metavar='endianness')
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(options, args) = parser.parse_args()
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optVars = vars(options)
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for opt in [ "datfile", "filterfile", "tmpdir", "outfile" ]:
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if optVars[opt] is None:
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print "Missing required option: %s" % opt
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sys.exit(1)
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if options.verbose>0:
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print "Options: "+str(options)
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if (os.path.isdir(options.tmpdir) and options.deltmpdir):
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if options.verbose>1:
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print "Deleting tmp dir %s.." % (options.tmpdir)
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shutil.rmtree(options.tmpdir)
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if not (os.path.isdir(options.tmpdir)):
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os.mkdir(options.tmpdir)
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else:
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print "Please delete tmpdir %s before beginning." % options.tmpdir
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sys.exit(1)
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if options.endian not in ("big","little","host"):
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print "Unknown endianness: %s" % options.endian
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sys.exit(1)
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if options.endian is "host":
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options.endian = endian
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if not os.path.isdir(options.tmpdir):
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print "Error, tmpdir not a directory: %s" % (options.tmpdir)
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sys.exit(1)
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if not os.path.isfile(options.filterfile):
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print "Filterfile doesn't exist: %s" % (options.filterfile)
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sys.exit(1)
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if not os.path.isfile(options.datfile):
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print "Datfile doesn't exist: %s" % (options.datfile)
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sys.exit(1)
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if not options.datfile.endswith(".dat"):
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print "Datfile doesn't end with .dat: %s" % (options.datfile)
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sys.exit(1)
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outfile = os.path.join(options.tmpdir, options.outfile)
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if os.path.isfile(outfile):
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print "Error, output file does exist: %s" % (outfile)
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sys.exit(1)
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if not options.outfile.endswith(".dat"):
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print "Outfile doesn't end with .dat: %s" % (options.outfile)
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sys.exit(1)
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dataname=options.outfile[0:-4]
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## TODO: need to improve this. Quotes, etc.
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def runcmd(tool, cmd, doContinue=False):
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if(options.toolpath):
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cmd = os.path.join(options.toolpath, tool) + " " + cmd
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else:
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cmd = tool + " " + cmd
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if(options.verbose>4):
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print "# " + cmd
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rc = os.system(cmd)
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if rc is not 0 and not doContinue:
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print "FAILED: %s" % cmd
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sys.exit(1)
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return rc
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## STEP 0 - read in json config
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fi= open(options.filterfile, "rb")
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config=json.load(fi)
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fi.close()
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if (options.locales):
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if not config.has_key("variables"):
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config["variables"] = {}
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if not config["variables"].has_key("locales"):
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config["variables"]["locales"] = {}
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config["variables"]["locales"]["only"] = options.locales.split(',')
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if (options.verbose > 6):
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print config
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if(config.has_key("comment")):
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print "%s: %s" % (options.filterfile, config["comment"])
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## STEP 1 - copy the data file, swapping endianness
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## The first letter of endian_letter will be 'b' or 'l' for big or little
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endian_letter = options.endian[0]
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runcmd("icupkg", "-t%s %s %s""" % (endian_letter, options.datfile, outfile))
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## STEP 2 - get listing
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listfile = os.path.join(options.tmpdir,"icudata.lst")
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runcmd("icupkg", "-l %s > %s""" % (outfile, listfile))
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fi = open(listfile, 'rb')
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items = fi.readlines()
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items = [items[i].strip() for i in range(len(items))]
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fi.close()
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itemset = set(items)
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if (options.verbose>1):
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print "input file: %d items" % (len(items))
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# list of all trees
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trees = {}
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RES_INDX = "res_index.res"
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remove = None
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# remove - always remove these
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if config.has_key("remove"):
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remove = set(config["remove"])
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else:
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remove = set()
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# keep - always keep these
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if config.has_key("keep"):
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keep = set(config["keep"])
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else:
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keep = set()
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def queueForRemoval(tree):
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global remove
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if not config.has_key("trees"):
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# no config
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return
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if not config["trees"].has_key(tree):
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return
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mytree = trees[tree]
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if(options.verbose>0):
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print "* %s: %d items" % (tree, len(mytree["locs"]))
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# do varible substitution for this tree here
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if type(config["trees"][tree]) == str or type(config["trees"][tree]) == unicode:
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treeStr = config["trees"][tree]
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if(options.verbose>5):
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print " Substituting $%s for tree %s" % (treeStr, tree)
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if(not config.has_key("variables") or not config["variables"].has_key(treeStr)):
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print " ERROR: no variable: variables.%s for tree %s" % (treeStr, tree)
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sys.exit(1)
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config["trees"][tree] = config["variables"][treeStr]
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myconfig = config["trees"][tree]
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if(options.verbose>4):
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print " Config: %s" % (myconfig)
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# Process this tree
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if(len(myconfig)==0 or len(mytree["locs"])==0):
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if(options.verbose>2):
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print " No processing for %s - skipping" % (tree)
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else:
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only = None
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if myconfig.has_key("only"):
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only = set(myconfig["only"])
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if (len(only)==0) and (mytree["treeprefix"] != ""):
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thePool = "%spool.res" % (mytree["treeprefix"])
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if (thePool in itemset):
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if(options.verbose>0):
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print "Removing %s because tree %s is empty." % (thePool, tree)
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remove.add(thePool)
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else:
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print "tree %s - no ONLY"
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for l in range(len(mytree["locs"])):
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loc = mytree["locs"][l]
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if (only is not None) and not loc in only:
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# REMOVE loc
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toRemove = "%s%s%s" % (mytree["treeprefix"], loc, mytree["extension"])
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if(options.verbose>6):
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print "Queueing for removal: %s" % toRemove
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remove.add(toRemove)
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def addTreeByType(tree, mytree):
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if(options.verbose>1):
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print "(considering %s): %s" % (tree, mytree)
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trees[tree] = mytree
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mytree["locs"]=[]
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for i in range(len(items)):
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item = items[i]
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if item.startswith(mytree["treeprefix"]) and item.endswith(mytree["extension"]):
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mytree["locs"].append(item[len(mytree["treeprefix"]):-4])
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# now, process
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queueForRemoval(tree)
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addTreeByType("converters",{"treeprefix":"", "extension":".cnv"})
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addTreeByType("stringprep",{"treeprefix":"", "extension":".spp"})
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addTreeByType("translit",{"treeprefix":"translit/", "extension":".res"})
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addTreeByType("brkfiles",{"treeprefix":"brkitr/", "extension":".brk"})
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addTreeByType("brkdict",{"treeprefix":"brkitr/", "extension":"dict"})
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addTreeByType("confusables",{"treeprefix":"", "extension":".cfu"})
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for i in range(len(items)):
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item = items[i]
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if item.endswith(RES_INDX):
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treeprefix = item[0:item.rindex(RES_INDX)]
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tree = None
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if treeprefix == "":
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tree = "ROOT"
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else:
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tree = treeprefix[0:-1]
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if(options.verbose>6):
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print "procesing %s" % (tree)
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trees[tree] = { "extension": ".res", "treeprefix": treeprefix, "hasIndex": True }
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# read in the resource list for the tree
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treelistfile = os.path.join(options.tmpdir,"%s.lst" % tree)
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runcmd("iculslocs", "-i %s -N %s -T %s -l > %s" % (outfile, dataname, tree, treelistfile))
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fi = open(treelistfile, 'rb')
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treeitems = fi.readlines()
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trees[tree]["locs"] = [treeitems[i].strip() for i in range(len(treeitems))]
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fi.close()
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if(not config.has_key("trees") or not config["trees"].has_key(tree)):
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print " Warning: filter file %s does not mention trees.%s - will be kept as-is" % (options.filterfile, tree)
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else:
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queueForRemoval(tree)
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def removeList(count=0):
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# don't allow "keep" items to creep in here.
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global remove
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remove = remove - keep
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if(count > 10):
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print "Giving up - %dth attempt at removal." % count
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sys.exit(1)
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if(options.verbose>1):
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print "%d items to remove - try #%d" % (len(remove),count)
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if(len(remove)>0):
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oldcount = len(remove)
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hackerrfile=os.path.join(options.tmpdir, "REMOVE.err")
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removefile = os.path.join(options.tmpdir, "REMOVE.lst")
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fi = open(removefile, 'wb')
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for i in remove:
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print >>fi, i
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fi.close()
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rc = runcmd("icupkg","-r %s %s 2> %s" % (removefile,outfile,hackerrfile),True)
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if rc is not 0:
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if(options.verbose>5):
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print "## Damage control, trying to parse stderr from icupkg.."
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fi = open(hackerrfile, 'rb')
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erritems = fi.readlines()
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fi.close()
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#Item zone/zh_Hant_TW.res depends on missing item zone/zh_Hant.res
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pat = re.compile("""^Item ([^ ]+) depends on missing item ([^ ]+).*""")
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for i in range(len(erritems)):
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line = erritems[i].strip()
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m = pat.match(line)
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if m:
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toDelete = m.group(1)
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if(options.verbose > 5):
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print "<< %s added to delete" % toDelete
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remove.add(toDelete)
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else:
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print "ERROR: could not match errline: %s" % line
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sys.exit(1)
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if(options.verbose > 5):
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print " now %d items to remove" % len(remove)
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if(oldcount == len(remove)):
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print " ERROR: could not add any mor eitems to remove. Fail."
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sys.exit(1)
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removeList(count+1)
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# fire it up
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removeList(1)
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# now, fixup res_index, one at a time
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for tree in trees:
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# skip trees that don't have res_index
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if not trees[tree].has_key("hasIndex"):
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continue
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treebunddir = options.tmpdir
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if(trees[tree]["treeprefix"]):
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treebunddir = os.path.join(treebunddir, trees[tree]["treeprefix"])
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if not (os.path.isdir(treebunddir)):
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os.mkdir(treebunddir)
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treebundres = os.path.join(treebunddir,RES_INDX)
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treebundtxt = "%s.txt" % (treebundres[0:-4])
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runcmd("iculslocs", "-i %s -N %s -T %s -b %s" % (outfile, dataname, tree, treebundtxt))
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runcmd("genrb","-d %s -s %s res_index.txt" % (treebunddir, treebunddir))
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runcmd("icupkg","-s %s -a %s%s %s" % (options.tmpdir, trees[tree]["treeprefix"], RES_INDX, outfile))
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