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# Copyright 2023 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.
"""Helper rules for demonstrating `py_wheel` examples"""
def _directory_writer_impl(ctx):
output = ctx.actions.declare_directory(ctx.attr.out)
args = ctx.actions.args()
args.add("--output", output.path)
for path, content in ctx.attr.files.items():
args.add("--file={}={}".format(
path,
json.encode(content),
))
ctx.actions.run(
outputs = [output],
arguments = [args],
executable = ctx.executable._writer,
)
return [DefaultInfo(
files = depset([output]),
runfiles = ctx.runfiles(files = [output]),
)]
directory_writer = rule(
implementation = _directory_writer_impl,
doc = "A rule for generating a directory with the requested content.",
attrs = {
"files": attr.string_dict(
doc = "A mapping of file name to content to create relative to the generated `out` directory.",
),
"out": attr.string(
doc = "The name of the directory to create",
),
"_writer": attr.label(
executable = True,
cfg = "exec",
default = Label("//examples/wheel/private:directory_writer"),
),
},
)
def _make_variable_tags_impl(ctx): # buildifier: disable=unused-variable
# This example is contrived. In a real usage, this rule would
# look at flags or dependencies to determine what values to use.
# If all you're doing is setting constant values, then you can simply
# set them in the py_wheel() call.
vars = {}
vars["ABI"] = "cp38"
vars["PYTHON_TAG"] = "cp38"
vars["VERSION"] = "0.99.0"
return [platform_common.TemplateVariableInfo(vars)]
make_variable_tags = rule(
attrs = {},
doc = """Make variable tags to pass to a py_wheel rule.""",
implementation = _make_variable_tags_impl,
)
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