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53 lines
1.6 KiB
53 lines
1.6 KiB
# Copyright 2020 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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import("python_action.gni")
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# Prints an error message and exits the build unsuccessfully. Either 'message'
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# or 'message_lines' must be specified, but not both.
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#
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# Args:
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# message: The message to print. Use \n for newlines.
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# message_lines: List of lines to use for the message.
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#
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template("pw_error") {
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assert(
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defined(invoker.message) != defined(invoker.message_lines),
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"pw_error requires either a 'message' string or a 'message_lines' list")
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if (defined(invoker.message_lines)) {
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_message = string_join("\n", invoker.message_lines)
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} else {
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_message = invoker.message
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}
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assert(_message != "", "The message cannot be empty")
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action(target_name) {
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script = "$dir_pw_build/py/pw_build/error.py"
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args = [
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"--target",
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get_label_info(":$target_name", "label_with_toolchain"),
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"--message",
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_message,
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"--root",
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rebase_path("//"),
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"--out",
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rebase_path(root_build_dir),
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]
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# This output file is never created.
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outputs = [ "$target_gen_dir/$target_name.build_error" ]
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}
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}
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