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nodejs/tools/icu/shrink-icu-src.py
Steven R. Loomis b8a794d72b
deps: minor ICU fixes: maint docs/tool, downloader
- Docs used the word "copy" when it really meant a tool is needed.
- README-FULL-ICU.txt was generated in binary mode, but it's a
text file. This breaks on Python3 for maintaining ICU
- The ICU downloader was broken (also probably python3). It's
basically dead code since 1a25e901b7
landed (full icu in repo), unless someone deleted the deps/icu-small
directory from their repo.

Co-Authored-By: Christian Clauss <cclauss@me.com>
PR-URL: https://github.com/nodejs/node/pull/32347

Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Christian Clauss <cclauss@me.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2020-03-20 17:21:50 -07:00

140 lines
4.7 KiB
Python

#!/usr/bin/env python
from __future__ import print_function
import optparse
import os
import re
import sys
import shutil
import bz2
parser = optparse.OptionParser()
parser.add_option('--icudst',
action='store',
dest='icudst',
default='deps/icu-small',
help='path to target ICU directory. 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/obj/gen/icutmp',
help='path to icutmp dir.')
(options, args) = parser.parse_args()
if os.path.isdir(options.icudst):
print('Deleting existing icudst %s' % (options.icudst))
shutil.rmtree(options.icudst)
if not os.path.isdir(options.icusrc):
print('Missing source ICU dir --icusrc=%s' % (options.icusrc))
sys.exit(1)
# compression stuff. Keep the suffix and the compression function in sync.
compression_suffix = '.bz2'
def compress_data(infp, outfp):
with open(infp, 'rb') as inf:
with bz2.BZ2File(outfp, 'wb') as outf:
shutil.copyfileobj(inf, outf)
def print_size(fn):
size = (os.stat(fn).st_size) / 1024000
print('%dM\t%s' % (size, fn))
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')
if 'LICENSE' in ign:
ign.remove('LICENSE')
# license.html will be removed (it's obviated by LICENSE)
elif 'license.html' in ign:
ign.remove('license.html')
elif subdir == 'source':
ign = ign + ['layout','samples','test','extra','config','layoutex','allinone','data']
ign = ign + ['runConfigureICU','install-sh','mkinstalldirs','configure']
ign = ign + ['io']
elif subdir == 'source/tools':
ign = ign + ['tzcode','ctestfw','gensprep','gennorm2','gendict','icuswap',
'genbrk','gencfu','gencolusb','genren','memcheck','makeconv','gencnval','icuinfo','gentest']
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("Data file root: icudt%s%s" % (icu_ver_major, icu_endianness))
dst_datafile = os.path.join(options.icudst, "source","data","in", "icudt%s%s.dat" % (icu_ver_major, icu_endianness))
src_datafile = os.path.join(options.icusrc, "source/data/in/icudt%sl.dat" % (icu_ver_major))
dst_cmp_datafile = "%s%s" % (dst_datafile, compression_suffix)
if not os.path.isfile(src_datafile):
print("Error: icu data file not found: %s" % src_datafile)
exit(1)
print("will use datafile %s" % (src_datafile))
print('%s --> %s' % (options.icusrc, options.icudst))
shutil.copytree(options.icusrc, options.icudst, ignore=icu_ignore)
# now, make the data dir (since we ignored it)
icudst_data = os.path.join(options.icudst, "source", "data")
icudst_in = os.path.join(icudst_data, "in")
os.mkdir(icudst_data)
os.mkdir(icudst_in)
print_size(src_datafile)
print('%s --compress-> %s' % (src_datafile, dst_cmp_datafile))
compress_data(src_datafile, dst_cmp_datafile)
print_size(dst_cmp_datafile)
readme_name = os.path.join(options.icudst, "README-FULL-ICU.txt" )
# Now, print a short notice
msg_fmt = """\
ICU sources - auto generated by shrink-icu-src.py\n
This directory contains the ICU subset used by --with-intl=full-icu
It is a strict subset of ICU {} source files with the following exception(s):
* {} : compressed data file\n\n
To rebuild this directory, see ../../tools/icu/README.md\n"""
with open(readme_name, 'w') as out_file:
print(msg_fmt.format(icu_ver_major, dst_cmp_datafile), file=out_file)