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# Copyright 2023 The Bazel Authors. All rights reserved.
#
# 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Wrapper for repository which call"""
_binary_not_found_msg = "Unable to find the binary '{binary_name}'. Please update your PATH to include '{binary_name}'."
def which_with_fail(binary_name, rctx):
"""Tests to see if a binary exists, and otherwise fails with a message.
Args:
binary_name: name of the binary to find.
rctx: repository context.
Returns:
rctx.Path for the binary.
"""
binary = rctx.which(binary_name)
if binary == None:
fail(_binary_not_found_msg.format(binary_name = binary_name))
return binary
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