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917756d925
GN requires all actions to have at least one output file. However, many Python scripts are run to process data without generating a file. Such scripts would previously have to specify a dummy output file and touch it on completion. This change adds this stamp functionality to the script-runner script. The pw_python_script template accepts a boolean "stamp" argument. If set, the runner will touch a dummy file after it runs its sub-command. Change-Id: Iff0408ea0d93007418a1766f1eb7ed7b30ec6913
28 lines
1.1 KiB
Python
28 lines
1.1 KiB
Python
# Copyright 2019 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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"""Does nothing.
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The purpose of this script is to allow for source file dependencies within GN
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to be attached to targets that do not typically support them, such as groups.
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For example, instead of creating a group target, a pw_python_script target to
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run this script can be created. The script can be given a list of input files,
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causing GN to rebuild the target and everything that depends on it whenever any
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input file is modified.
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This is useful in the case where metadata is attached to a group of files but
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not collected into a generated_file until a later target.
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"""
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