mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 03:56:06 +00:00
b71edfaa4e
This is the first commit in a series that will reformat all the python files in the LLVM repository. Reformatting is done with `black`. See more information here: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style Reviewed By: jhenderson, JDevlieghere, MatzeB Differential Revision: https://reviews.llvm.org/D150545
66 lines
2.0 KiB
Python
Executable File
66 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
"""Downloads a prebuilt gn binary to a place where gn.py can find it."""
|
|
|
|
import io
|
|
import os
|
|
import sys
|
|
import urllib.request
|
|
import zipfile
|
|
|
|
|
|
def download_and_unpack(url, output_dir, gn):
|
|
"""Download an archive from url and extract gn from it into output_dir."""
|
|
print("downloading %s ..." % url, end="")
|
|
sys.stdout.flush()
|
|
data = urllib.request.urlopen(url).read()
|
|
print(" done")
|
|
zipfile.ZipFile(io.BytesIO(data)).extract(gn, path=output_dir)
|
|
|
|
|
|
def set_executable_bit(path):
|
|
mode = os.stat(path).st_mode
|
|
mode |= (mode & 0o444) >> 2 # Copy R bits to X.
|
|
os.chmod(path, mode) # No-op on Windows.
|
|
|
|
|
|
def get_platform():
|
|
import platform
|
|
|
|
if sys.platform == "darwin":
|
|
return "mac-amd64" if platform.machine() != "arm64" else "mac-arm64"
|
|
if platform.machine() not in ("AMD64", "x86_64"):
|
|
return None
|
|
if sys.platform.startswith("linux"):
|
|
return "linux-amd64"
|
|
if sys.platform == "win32":
|
|
return "windows-amd64"
|
|
|
|
|
|
def main():
|
|
platform = get_platform()
|
|
if not platform:
|
|
print("no prebuilt binary for", sys.platform)
|
|
print("build it yourself with:")
|
|
print(" rm -rf /tmp/gn &&")
|
|
print(" pushd /tmp && git clone https://gn.googlesource.com/gn &&")
|
|
print(" cd gn && build/gen.py && ninja -C out gn && popd &&")
|
|
print(" cp /tmp/gn/out/gn somewhere/on/PATH")
|
|
return 1
|
|
dirname = os.path.join(os.path.dirname(__file__), "bin", platform)
|
|
if not os.path.exists(dirname):
|
|
os.makedirs(dirname)
|
|
|
|
url = "https://chrome-infra-packages.appspot.com/dl/gn/gn/%s/+/latest"
|
|
gn = "gn" + (".exe" if sys.platform == "win32" else "")
|
|
if platform == "mac-arm64": # For https://openradar.appspot.com/FB8914243
|
|
try:
|
|
os.remove(os.path.join(dirname, gn))
|
|
except OSError:
|
|
pass
|
|
download_and_unpack(url % platform, dirname, gn)
|
|
set_executable_bit(os.path.join(dirname, gn))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|