535693f8f7
Previously the kernel.json would always point to `python3` even if you installed using a python from a virtualenv. This meant that tools like VSCode would try to run the kernel against the system python and fail. Added a note to the readme about it. I've removed the need to add to PYTHONPTHON as well, turns out it wasn't needed. This fixes an issue reported in https://discourse.llvm.org/t/tablegen-the-playground-ipynb-file-is-not-working-as-expected/71745. Reviewed By: awarzynski Differential Revision: https://reviews.llvm.org/D154351
73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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import os
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import json
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import sys
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import argparse
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from tempfile import TemporaryDirectory
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from jupyter_client.kernelspec import KernelSpecManager
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def install_my_kernel_spec(user=True, prefix=None):
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"""Install the kernel spec for user in given prefix."""
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print("Installing llvm-tblgen IPython kernel spec")
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kernel_json = {
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"argv": [
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sys.executable, "-m", "tablegen_kernel", "-f", "{connection_file}"
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],
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"display_name": "LLVM TableGen",
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"language": "tablegen",
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"language_info": {
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"name": "tablegen",
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"codemirror_mode": "tablegen",
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"mimetype": "text/x-tablegen",
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"file_extension": ".td",
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"pygments_lexer": "text"
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}
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}
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with TemporaryDirectory() as tmpdir:
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json_path = os.path.join(tmpdir, "kernel.json")
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with open(json_path, 'w') as json_file:
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json.dump(kernel_json, json_file)
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KernelSpecManager().install_kernel_spec(
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tmpdir, "tablegen", user=user, prefix=prefix
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)
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def _is_root():
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"""Returns whether the current user is root."""
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try:
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return os.geteuid() == 0
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except AttributeError:
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# Return false wherever unknown.
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return False
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def main(argv=None):
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parser = argparse.ArgumentParser(
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description="Install KernelSpec for LLVM TableGen Kernel"
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)
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prefix_locations = parser.add_mutually_exclusive_group()
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prefix_locations.add_argument(
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"--user", help="Install in user home directory", action="store_true"
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)
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prefix_locations.add_argument(
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"--prefix", help="Install directory prefix", default=None
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)
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args = parser.parse_args(argv)
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user = args.user or not _is_root()
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prefix = args.prefix
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install_my_kernel_spec(user=user, prefix=prefix)
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if __name__ == "__main__":
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main()
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