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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.common.collect.ImmutableSet;
import com.google.devtools.build.lib.analysis.PlatformOptions.ToolchainResolutionOverride;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.analysis.config.BuildOptions;
import com.google.devtools.build.lib.analysis.config.ConfigurationEnvironment;
import com.google.devtools.build.lib.analysis.config.ConfigurationFragmentFactory;
import com.google.devtools.build.lib.analysis.config.FragmentOptions;
import com.google.devtools.build.lib.analysis.config.InvalidConfigurationException;
import com.google.devtools.build.lib.cmdline.Label;
import java.util.List;
/** A loader that creates {@link PlatformConfiguration} instances based on command-line options. */
public class PlatformConfigurationLoader implements ConfigurationFragmentFactory {
@Override
public ImmutableSet<Class<? extends FragmentOptions>> requiredOptions() {
return ImmutableSet.<Class<? extends FragmentOptions>>of(PlatformOptions.class);
}
@Override
public PlatformConfiguration create(ConfigurationEnvironment env, BuildOptions buildOptions)
throws InvalidConfigurationException, InterruptedException {
PlatformOptions platformOptions = buildOptions.get(PlatformOptions.class);
return create(platformOptions);
}
@Override
public Class<? extends BuildConfiguration.Fragment> creates() {
return PlatformConfiguration.class;
}
private PlatformConfiguration create(PlatformOptions options)
throws InvalidConfigurationException {
// TODO(katre): This will change with remote execution.
Label executionPlatform = options.hostPlatform;
return new PlatformConfiguration(
executionPlatform,
ImmutableList.copyOf(options.platforms),
ImmutableList.copyOf(options.extraToolchains),
convertOverrides(options.toolchainResolutionOverrides),
ImmutableList.copyOf(options.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();
}
}
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