mirror of
https://github.com/bazelbuild/bazel-skylib
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117 lines
3.9 KiB
Python
117 lines
3.9 KiB
Python
# Copyright 2019 The Bazel Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""native_binary() and native_test() rule implementations.
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These rules let you wrap a pre-built binary or script in a conventional binary
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and test rule respectively. They fulfill the same goal as sh_binary and sh_test
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do, but they run the wrapped binary directly, instead of through Bash, so they
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don't depend on Bash and work with --shell_exectuable="".
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"""
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load("//rules/private:copy_file_private.bzl", "copy_bash", "copy_cmd")
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def _impl_rule(ctx, is_windows):
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out = ctx.actions.declare_file(ctx.attr.out)
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if is_windows:
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copy_cmd(ctx, ctx.file.src, out)
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else:
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copy_bash(ctx, ctx.file.src, out)
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return DefaultInfo(
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executable = out,
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files = depset([out]),
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runfiles = ctx.runfiles(
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files = [out],
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collect_data = True,
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collect_default = True,
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),
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)
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def _impl(ctx):
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return _impl_rule(ctx, ctx.attr.is_windows)
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_ATTRS = {
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"src": attr.label(
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executable = True,
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allow_single_file = True,
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mandatory = True,
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cfg = "host",
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),
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"data": attr.label_list(allow_files = True),
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# "out" is attr.string instead of attr.output, so that it is select()'able.
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"out": attr.string(mandatory = True),
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"is_windows": attr.bool(mandatory = True),
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}
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_native_binary = rule(
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implementation = _impl,
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attrs = _ATTRS,
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executable = True,
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)
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_native_test = rule(
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implementation = _impl,
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attrs = _ATTRS,
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test = True,
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)
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def native_binary(name, src, out, data = None, **kwargs):
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"""Wraps a pre-built binary or script with a binary rule.
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You can "bazel run" this rule like any other binary rule, and use it as a tool in genrule.tools for example. You can also augment the binary with runfiles.
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Args:
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name: The name of the test rule.
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src: label; path of the pre-built executable
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out: output; an output name for the copy of the binary. (Bazel requires that this rule make a copy of 'src'.)
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data: list of labels; data dependencies
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**kwargs: The <a href="https://docs.bazel.build/versions/master/be/common-definitions.html#common-attributes-binaries">common attributes for binaries</a>.
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"""
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_native_binary(
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name = name,
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src = src,
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out = out,
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data = data,
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is_windows = select({
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"@bazel_tools//src/conditions:host_windows": True,
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"//conditions:default": False,
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}),
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**kwargs
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)
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def native_test(name, src, out, data = None, **kwargs):
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"""Wraps a pre-built binary or script with a test rule.
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You can "bazel test" this rule like any other test rule. You can also augment the binary with
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runfiles.
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Args:
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name: The name of the test rule.
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src: label; path of the pre-built executable
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out: output; an output name for the copy of the binary. (Bazel requires that this rule make a copy of 'src'.)
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data: list of labels; data dependencies
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**kwargs: The <a href="https://docs.bazel.build/versions/master/be/common-definitions.html#common-attributes-tests">common attributes for tests</a>.
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"""
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_native_test(
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name = name,
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src = src,
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out = out,
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data = data,
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is_windows = select({
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"@bazel_tools//src/conditions:host_windows": True,
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"//conditions:default": False,
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}),
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**kwargs
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)
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