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60 lines
2.3 KiB
60 lines
2.3 KiB
# Copyright (c) 2009-2021, Google LLC |
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# All rights reserved. |
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# |
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# Use of this source code is governed by a BSD-style |
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# license that can be found in the LICENSE file or at |
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# https://developers.google.com/open-source/licenses/bsd |
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"""Bazel support functions related to CMake support.""" |
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load("@rules_python//python:py_test.bzl", "py_test") |
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def staleness_test(name, outs, generated_pattern, target_files = None, tags = [], **kwargs): |
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"""Tests that checked-in file(s) match the contents of generated file(s). |
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The resulting test will verify that all output files exist and have the |
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correct contents. If the test fails, it can be invoked with --fix to |
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bring the checked-in files up to date. |
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Args: |
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name: Name of the rule. |
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outs: the checked-in files that are copied from generated files. |
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generated_pattern: the pattern for transforming each "out" file into a |
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generated file. For example, if generated_pattern="generated/%s" then |
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a file foo.txt will look for generated file generated/foo.txt. |
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target_files: A glob representing all of the files that should be |
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covered by this rule. Files in this glob but not generated will |
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be deleted. (Not currently implemented in OSS). |
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**kwargs: Additional keyword arguments to pass through to py_test(). |
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""" |
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script_name = name + ".py" |
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script_src = Label("//upb/cmake:staleness_test.py") |
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# Filter out non-existing rules so Blaze doesn't error out before we even |
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# run the test. |
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existing_outs = native.glob(include = outs, allow_empty = True) |
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# The file list contains a few extra bits of information at the end. |
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# These get unpacked by the Config class in staleness_test_lib.py. |
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file_list = outs + [generated_pattern, native.package_name() or ".", name] |
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native.genrule( |
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name = name + "_makescript", |
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outs = [script_name], |
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srcs = [script_src], |
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testonly = 1, |
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cmd = "cp $< $@; " + |
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"sed -i.bak -e 's|INSERT_FILE_LIST_HERE|" + "\\\n ".join(file_list) + "|' $@", |
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) |
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py_test( |
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name = name, |
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srcs = [script_name], |
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data = existing_outs + [generated_pattern % file for file in outs], |
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python_version = "PY3", |
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deps = [ |
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Label("//upb/cmake:staleness_test_lib"), |
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], |
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tags = ["staleness_test"] + tags, |
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**kwargs |
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)
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