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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
import os
import json
import sys
import argparse
from tempfile import TemporaryDirectory
from jupyter_client.kernelspec import KernelSpecManager
def install_my_kernel_spec(user=True, prefix=None):
"""Install the kernel spec for user in given prefix."""
print("Installing llvm-tblgen IPython kernel spec")
kernel_json = {
"argv": [
sys.executable, "-m", "tablegen_kernel", "-f", "{connection_file}"
],
"display_name": "LLVM TableGen",
"language": "tablegen",
"language_info": {
"name": "tablegen",
"codemirror_mode": "tablegen",
"mimetype": "text/x-tablegen",
"file_extension": ".td",
"pygments_lexer": "text"
}
}
with TemporaryDirectory() as tmpdir:
json_path = os.path.join(tmpdir, "kernel.json")
with open(json_path, 'w') as json_file:
json.dump(kernel_json, json_file)
KernelSpecManager().install_kernel_spec(
tmpdir, "tablegen", user=user, prefix=prefix
)
def _is_root():
"""Returns whether the current user is root."""
try:
return os.geteuid() == 0
except AttributeError:
# Return false wherever unknown.
return False
def main(argv=None):
parser = argparse.ArgumentParser(
description="Install KernelSpec for LLVM TableGen Kernel"
)
prefix_locations = parser.add_mutually_exclusive_group()
prefix_locations.add_argument(
"--user", help="Install in user home directory", action="store_true"
)
prefix_locations.add_argument(
"--prefix", help="Install directory prefix", default=None
)
args = parser.parse_args(argv)
user = args.user or not _is_root()
prefix = args.prefix
install_my_kernel_spec(user=user, prefix=prefix)
if __name__ == "__main__":
main()
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