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#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

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# Unless required by applicable law or agreed to in writing, software

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"""This file contains repository rules and macros to support toolchain registration.

"""

load(":repo_utils.bzl", "repo_utils")

STANDALONE_INTERPRETER_FILENAME = "STANDALONE_INTERPRETER"

def is_standalone_interpreter(rctx, python_interpreter_path, *, logger = None):

"""Query a python interpreter target for whether or not it's a rules_rust provided toolchain

Args:

rctx: {type}`repository_ctx` The repository rule's context object.

python_interpreter_path: {type}`path` A path representing the interpreter.

logger: Optional logger to use for operations.

Returns:

{type}`bool` Whether or not the target is from a rules_python generated toolchain.

"""

# Only update the location when using a hermetic toolchain.

if not python_interpreter_path:

return False

# This is a rules_python provided toolchain.

return repo_utils.execute_unchecked(

rctx,

op = "IsStandaloneInterpreter",

arguments = [

"ls",

"{}/{}".format(

python_interpreter_path.dirname,

STANDALONE_INTERPRETER_FILENAME,

),

],

logger = logger,

).return_code == 0