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// Copyright 2017 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.
package com.google.devtools.build.lib.analysis;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.PlatformOptions.ToolchainResolutionOverride;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.concurrent.ThreadSafety;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
import java.util.List;
/** A configuration fragment describing the current platform configuration. */
@ThreadSafety.Immutable
@SkylarkModule(
name = "platform",
doc = "The platform configuration.",
category = SkylarkModuleCategory.CONFIGURATION_FRAGMENT
)
public class PlatformConfiguration extends BuildConfiguration.Fragment {
private final Label executionPlatform;
private final ImmutableList<Label> targetPlatforms;
private final ImmutableList<Label> extraToolchains;
private final ImmutableMap<Label, Label> toolchainResolutionOverrides;
private final ImmutableList<Label> enabledToolchainTypes;
public PlatformConfiguration(
Label executionPlatform,
List<Label> targetPlatforms,
List<Label> extraToolchains,
List<ToolchainResolutionOverride> overrides,
List<Label> enabledToolchainTypes) {
this.executionPlatform = executionPlatform;
this.targetPlatforms = ImmutableList.copyOf(targetPlatforms);
this.extraToolchains = ImmutableList.copyOf(extraToolchains);
this.toolchainResolutionOverrides = convertOverrides(overrides);
this.enabledToolchainTypes = ImmutableList.copyOf(enabledToolchainTypes);
}
private static ImmutableMap<Label, Label> convertOverrides(
List<ToolchainResolutionOverride> overrides) {
ImmutableMap.Builder<Label, Label> builder = new ImmutableMap.Builder<>();
for (ToolchainResolutionOverride override : overrides) {
builder.put(override.toolchainType(), override.toolchainLabel());
}
return builder.build();
}
@SkylarkCallable(
name = "execution_platform",
structField = true,
doc = "The current execution platform"
)
public Label getExecutionPlatform() {
return executionPlatform;
}
@SkylarkCallable(name = "platforms", structField = true, doc = "The current target platforms")
public ImmutableList<Label> getTargetPlatforms() {
return targetPlatforms;
}
/** Additional toolchains that should be considered during toolchain resolution. */
public ImmutableList<Label> getExtraToolchains() {
return extraToolchains;
}
/** Returns {@code true} if the given toolchain type has a manual override set. */
public boolean hasToolchainOverride(Label toolchainType) {
return toolchainResolutionOverrides.containsKey(toolchainType);
}
/** Returns the {@link Label} of the toolchain to use for the given toolchain type. */
public Label getToolchainOverride(Label toolchainType) {
return toolchainResolutionOverrides.get(toolchainType);
}
@SkylarkCallable(
name = "enabled_toolchain_types",
structField = true,
doc = "The set of toolchain types enabled for platform-based toolchain selection."
)
public List<Label> getEnabledToolchainTypes() {
return enabledToolchainTypes;
}
}
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