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install.py
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#!/usr/bin/env python3
# Copyright 2020 The Emscripten Authors. All rights reserved.
# Emscripten is available under two separate licenses, the MIT license and the
# University of Illinois/NCSA Open Source License. Both these licenses can be
# found in the LICENSE file.
"""Install the parts of emscripten needed for end users. This works like
a traditional `make dist` target but is written in python so it can be portable
and run on non-unix platforms (basically windows).
"""
import argparse
import fnmatch
import logging
import os
import shutil
import subprocess
import sys
EXCLUDES = [os.path.normpath(x) for x in '''
test/third_party
tools/maint
site
node_modules
Makefile
.git
cache
cache.lock
bootstrap.py
'''.split()]
EXCLUDE_PATTERNS = '''
*.pyc
.*
__pycache__
'''.split()
logger = logging.getLogger('install')
def add_revision_file(target):
# text=True would be better than encoding here, but it's only supported in 3.7+
git_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD'], encoding='utf-8').strip()
with open(os.path.join(target, 'emscripten-revision.txt'), 'w') as f:
f.write(git_hash + '\n')
def copy_emscripten(target):
script_dir = os.path.dirname(os.path.abspath(__file__))
emscripten_root = os.path.dirname(script_dir)
os.chdir(emscripten_root)
for root, dirs, files in os.walk('.'):
# Handle the case where the target directory is underneath emscripten_root
if os.path.abspath(root) == os.path.abspath(target):
dirs.clear()
continue
remove_dirs = []
for d in dirs:
if d in EXCLUDE_PATTERNS:
remove_dirs.append(d)
continue
fulldir = os.path.normpath(os.path.join(root, d))
if fulldir in EXCLUDES:
remove_dirs.append(d)
continue
os.makedirs(os.path.join(target, fulldir))
for d in remove_dirs:
# Prevent recursion in excluded dirs
logger.debug('skipping dir: ' + os.path.join(root, d))
dirs.remove(d)
for f in files:
if any(fnmatch.fnmatch(f, pat) for pat in EXCLUDE_PATTERNS):
logger.debug('skipping file: ' + os.path.join(root, f))
continue
full = os.path.normpath(os.path.join(root, f))
if full in EXCLUDES:
logger.debug('skipping file: ' + os.path.join(root, f))
continue
logger.debug('installing file: ' + os.path.join(root, f))
shutil.copy2(full, os.path.join(target, root, f), follow_symlinks=False)
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-v', '--verbose', action='store_true', help='verbose',
default=int(os.environ.get('EMCC_DEBUG', '0')))
parser.add_argument('target', help='target directory')
args = parser.parse_args()
target = os.path.abspath(args.target)
if os.path.exists(target):
print('target directory already exists: %s' % target)
return 1
logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
os.makedirs(target)
copy_emscripten(target)
if os.path.isdir('.git'):
# Add revision flag only if the source directory is a Git repository
# and not a source archive
add_revision_file(target)
return 0
if __name__ == '__main__':
sys.exit(main())