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