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5408e85145
Starting with Python 3.11, Pythons gzip might delegate to zlib. Depending on the OS, i.e Ubuntu vs Fedora, the underlying zlib implementation might differ, resulting in different output. For now, or until a better solution exists, disable compression. This results in the SDK increasing in size to ~157mb. Which is not unreasonable, to regain determinism (and would be significantly worse without the previous commit). See: https://docs.python.org/3/library/gzip.html#gzip.compress Co-authored-by: stickies-v <stickies-v@protonmail.com> Github-Pull: #32009 Rebased-From: c1213a35abed01a97a9c52954919158f91f974d2
94 lines
4.0 KiB
Python
Executable File
94 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import plistlib
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import pathlib
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import tarfile
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import os
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import contextlib
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@contextlib.contextmanager
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def cd(path):
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"""Context manager that restores PWD even if an exception was raised."""
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old_pwd = os.getcwd()
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os.chdir(str(path))
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try:
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yield
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finally:
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os.chdir(old_pwd)
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def run():
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parser = argparse.ArgumentParser(
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description=__doc__, formatter_class=argparse.RawTextHelpFormatter)
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parser.add_argument('xcode_app', metavar='XCODEAPP', type=pathlib.Path)
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parser.add_argument("-o", metavar='OUTSDKTAR', dest='out_sdkt', type=pathlib.Path, required=False)
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args = parser.parse_args()
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xcode_app = args.xcode_app.resolve()
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assert xcode_app.is_dir(), "The supplied Xcode.app path '{}' either does not exist or is not a directory".format(xcode_app)
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xcode_app_plist = xcode_app.joinpath("Contents/version.plist")
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with xcode_app_plist.open('rb') as fp:
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pl = plistlib.load(fp)
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xcode_version = pl['CFBundleShortVersionString']
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xcode_build_id = pl['ProductBuildVersion']
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print("Found Xcode (version: {xcode_version}, build id: {xcode_build_id})".format(xcode_version=xcode_version, xcode_build_id=xcode_build_id))
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sdk_dir = xcode_app.joinpath("Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk")
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sdk_plist = sdk_dir.joinpath("System/Library/CoreServices/SystemVersion.plist")
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with sdk_plist.open('rb') as fp:
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pl = plistlib.load(fp)
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sdk_version = pl['ProductVersion']
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sdk_build_id = pl['ProductBuildVersion']
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print("Found MacOSX SDK (version: {sdk_version}, build id: {sdk_build_id})".format(sdk_version=sdk_version, sdk_build_id=sdk_build_id))
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out_name = "Xcode-{xcode_version}-{xcode_build_id}-extracted-SDK-with-libcxx-headers".format(xcode_version=xcode_version, xcode_build_id=xcode_build_id)
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out_sdkt_path = args.out_sdkt or pathlib.Path("./{}.tar".format(out_name))
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def tarfp_add_with_base_change(tarfp, dir_to_add, alt_base_dir):
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"""Add all files in dir_to_add to tarfp, but prepend alt_base_dir to the files'
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names
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e.g. if the only file under /root/bazdir is /root/bazdir/qux, invoking:
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tarfp_add_with_base_change(tarfp, "foo/bar", "/root/bazdir")
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would result in the following members being added to tarfp:
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foo/bar/ -> corresponding to /root/bazdir
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foo/bar/qux -> corresponding to /root/bazdir/qux
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"""
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def change_tarinfo_base(tarinfo):
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if tarinfo.name and tarinfo.name.endswith((".swiftmodule", ".modulemap")):
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return None
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if tarinfo.name and tarinfo.name.startswith("./"):
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tarinfo.name = str(pathlib.Path(alt_base_dir, tarinfo.name))
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if tarinfo.linkname and tarinfo.linkname.startswith("./"):
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tarinfo.linkname = str(pathlib.Path(alt_base_dir, tarinfo.linkname))
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# make metadata deterministic
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tarinfo.mtime = 0
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tarinfo.uid, tarinfo.uname = 0, ''
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tarinfo.gid, tarinfo.gname = 0, ''
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# don't use isdir() as there are also executable files present
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tarinfo.mode = 0o0755 if tarinfo.mode & 0o0100 else 0o0644
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return tarinfo
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with cd(dir_to_add):
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# recursion already adds entries in sorted order
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tarfp.add("./usr/include", recursive=True, filter=change_tarinfo_base)
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tarfp.add("./usr/lib", recursive=True, filter=change_tarinfo_base)
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tarfp.add("./System/Library/Frameworks", recursive=True, filter=change_tarinfo_base)
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print("Creating output .tar file...")
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with out_sdkt_path.open("wb") as fp:
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with tarfile.open(mode="w", fileobj=fp, format=tarfile.PAX_FORMAT) as tarfp:
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print("Adding MacOSX SDK {} files...".format(sdk_version))
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tarfp_add_with_base_change(tarfp, sdk_dir, out_name)
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print("Done! Find the resulting tarball at:")
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print(out_sdkt_path.resolve())
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if __name__ == '__main__':
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run()
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