1# Copyright 2023 The Bazel Authors. All rights reserved. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15"""Wrapper for repository which call""" 16 17_binary_not_found_msg = "Unable to find the binary '{binary_name}'. Please update your PATH to include '{binary_name}'." 18 19def which_with_fail(binary_name, rctx): 20 """Tests to see if a binary exists, and otherwise fails with a message. 21 22 Args: 23 binary_name: name of the binary to find. 24 rctx: repository context. 25 26 Returns: 27 rctx.Path for the binary. 28 """ 29 binary = rctx.which(binary_name) 30 if binary == None: 31 fail(_binary_not_found_msg.format(binary_name = binary_name)) 32 return binary 33