mirror of
https://github.com/bazelbuild/rules_cc
synced 2024-11-28 21:34:00 +00:00
87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
# Copyright 2024 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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"""Implementation of cc_tool_map."""
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load(
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"//cc/toolchains/impl:collect.bzl",
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"collect_provider",
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"collect_tools",
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)
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load(
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":cc_toolchain_info.bzl",
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"ActionTypeSetInfo",
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"ToolConfigInfo",
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)
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def _cc_tool_map_impl(ctx):
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tools = collect_tools(ctx, ctx.attr.tools)
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action_sets = collect_provider(ctx.attr.actions, ActionTypeSetInfo)
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action_to_tool = {}
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action_to_as = {}
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for i in range(len(action_sets)):
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action_set = action_sets[i]
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tool = tools[i]
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for action in action_set.actions.to_list():
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if action in action_to_as:
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fail("The action %s appears multiple times in your tool_map (as %s and %s)" % (action.label, action_set.label, action_to_as[action].label))
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action_to_as[action] = action_set
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action_to_tool[action] = tool
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return [ToolConfigInfo(label = ctx.label, configs = action_to_tool)]
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_cc_tool_map = rule(
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implementation = _cc_tool_map_impl,
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# @unsorted-dict-items
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attrs = {
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"actions": attr.label_list(
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providers = [ActionTypeSetInfo],
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mandatory = True,
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doc = """A list of action names to apply this action to.
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See @toolchain//actions:all for valid options.
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""",
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),
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"tools": attr.label_list(
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mandatory = True,
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cfg = "exec",
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allow_files = True,
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doc = """The tool to use for the specified actions.
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A tool is usually a binary, but may be a `cc_tool`.
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If multiple tools are specified, the first tool that has `with_features` that
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satisfy the currently enabled feature set is used.
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""",
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),
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},
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provides = [ToolConfigInfo],
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)
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def cc_tool_map(name, tools, **kwargs):
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"""Configuration for which actions require which tools.
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Args:
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name: (str) The name of the target
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tools: (Dict[Action target, Executable target])
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**kwargs: kwargs to be passed to the underlying rule.
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"""
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_cc_tool_map(
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name = name,
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actions = tools.keys(),
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tools = tools.values(),
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**kwargs
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)
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