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#!/usr/bin/env python
import optparse
import os
import re
import sys
import shutil
parser = optparse.OptionParser()
parser.add_option('--icu-small',
action='store',
dest='icusmall',
default='deps/icu-small',
help='path to target ICU directory to shrink. Will be deleted.')
parser.add_option('--icu-src',
action='store',
dest='icusrc',
default='deps/icu',
help='path to source ICU directory.')
parser.add_option('--icutmp',
action='store',
dest='icutmp',
default='out/Release/gen/icutmp',
help='path to icutmp dir.')
(options, args) = parser.parse_args()
if os.path.isdir(options.icusmall):
print 'Deleting existing icusmall %s' % (options.icusmall)
shutil.rmtree(options.icusmall)
if not os.path.isdir(options.icusrc):
print 'Missing source ICU dir --icusrc=%s' % (options.icusrc)
sys.exit(1)
ignore_regex = re.compile('^.*\.(vcxproj|filters|nrm|icu|dat|xml|txt|ac|guess|m4|in|sub|py|mak)$')
def icu_ignore(dir, files):
subdir = dir[len(options.icusrc)+1::]
ign = []
if len(subdir) == 0:
# remove all files at root level
ign = ign + files
# except...
ign.remove('source')
ign.remove('license.html')
ign.remove('LICENSE')
elif subdir == 'source':
ign = ign + ['layout','samples','test','extra','config','layoutex','allinone']
ign = ign + ['runConfigureICU','install-sh','mkinstalldirs','configure']
elif subdir == 'source/tools':
ign = ign + ['tzcode','ctestfw','gensprep','gennorm2','gendict','icuswap',
'genbrk','gencfu','gencolusb','genren','memcheck','makeconv','gencnval','icuinfo','gentest']
elif subdir == 'source/data':
ign = ign + ['unidata','curr','zone','unit','lang','region','misc','sprep']
# else:
# print '!%s! [%s]' % (subdir, files)
ign = ign + ['.DS_Store', 'Makefile', 'Makefile.in']
for file in files:
if ignore_regex.match(file):
ign = ign + [file]
# print '>%s< [%s]' % (subdir, ign)
return ign
# copied from configure
def icu_info(icu_full_path):
uvernum_h = os.path.join(icu_full_path, 'source/common/unicode/uvernum.h')
if not os.path.isfile(uvernum_h):
print ' Error: could not load %s - is ICU installed?' % uvernum_h
sys.exit(1)
icu_ver_major = None
matchVerExp = r'^\s*#define\s+U_ICU_VERSION_SHORT\s+"([^"]*)".*'
match_version = re.compile(matchVerExp)
for line in open(uvernum_h).readlines():
m = match_version.match(line)
if m:
icu_ver_major = m.group(1)
if not icu_ver_major:
print ' Could not read U_ICU_VERSION_SHORT version from %s' % uvernum_h
sys.exit(1)
icu_endianness = sys.byteorder[0]; # TODO(srl295): EBCDIC should be 'e'
return (icu_ver_major, icu_endianness)
(icu_ver_major, icu_endianness) = icu_info(options.icusrc)
print "icudt%s%s" % (icu_ver_major, icu_endianness)
src_datafile = os.path.join(options.icutmp, "icusmdt%s.dat" % (icu_ver_major))
dst_datafile = os.path.join(options.icusmall, "source","data","in", "icudt%s%s.dat" % (icu_ver_major, icu_endianness))
if not os.path.isfile(src_datafile):
print "Could not find source datafile %s - did you build small-icu node?" % src_datafile
sys.exit(1)
else:
print "will use small datafile %s" % (src_datafile)
print '%s --> %s' % (options.icusrc, options.icusmall)
shutil.copytree(options.icusrc, options.icusmall, ignore=icu_ignore)
print '%s --> %s' % (src_datafile, dst_datafile)
# OK, now copy the data file
shutil.copy(src_datafile, dst_datafile)
# Now, print a short notice
readme_name = os.path.join(options.icusmall, "README-SMALL-ICU.txt" )
fi = open(readme_name, 'wb')
print >>fi, "Small ICU sources - auto generated by shrink-icu-src.py"
print >>fi, ""
print >>fi, "This directory contains the ICU subset used by --with-intl=small-icu (the default)"
print >>fi, "It is a strict subset of ICU %s source files with the following exception(s):" % (icu_ver_major)
print >>fi, "* %s : Reduced-size data file" % (dst_datafile)
print >>fi, ""
print >>fi, ""
print >>fi, "To rebuild this directory, see ../../tools/icu/README.md"
print >>fi, ""
fi.close()
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