| // Copyright 2016 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.rules.android; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Functions; |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Iterables; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.actions.ActionConstructionContext; |
| import com.google.devtools.build.lib.analysis.actions.CustomCommandLine; |
| import com.google.devtools.build.lib.analysis.actions.SpawnAction; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Builder for creating $android_resource_parser action. |
| */ |
| class AndroidResourceParsingActionBuilder { |
| |
| private static final ResourceContainerToArtifacts RESOURCE_CONTAINER_TO_ARTIFACTS = |
| new ResourceContainerToArtifacts(); |
| |
| private static final ResourceContainerToArg RESOURCE_CONTAINER_TO_ARG = |
| new ResourceContainerToArg(); |
| |
| private final RuleContext ruleContext; |
| private LocalResourceContainer primary; |
| private Artifact output; |
| |
| /** |
| * @param ruleContext The RuleContext that was used to create the SpawnAction.Builder. |
| */ |
| public AndroidResourceParsingActionBuilder(RuleContext ruleContext) { |
| this.ruleContext = ruleContext; |
| } |
| |
| /** |
| * Set the resource container to parse. |
| */ |
| public AndroidResourceParsingActionBuilder setParse(LocalResourceContainer primary) { |
| this.primary = primary; |
| return this; |
| } |
| |
| /** |
| * Set the artifact location for the output protobuf. |
| */ |
| public AndroidResourceParsingActionBuilder setOutput(Artifact output) { |
| this.output = output; |
| return this; |
| } |
| |
| private static class ResourceContainerToArg implements Function<LocalResourceContainer, String> { |
| |
| public ResourceContainerToArg() { |
| } |
| |
| @Override |
| public String apply(LocalResourceContainer container) { |
| return new StringBuilder() |
| .append(convertRoots(container.getResourceRoots())) |
| .append(":") |
| .append(convertRoots(container.getAssetRoots())) |
| .toString(); |
| } |
| } |
| |
| private static class ResourceContainerToArtifacts |
| implements Function<LocalResourceContainer, NestedSet<Artifact>> { |
| |
| public ResourceContainerToArtifacts() { |
| } |
| |
| @Override |
| public NestedSet<Artifact> apply(LocalResourceContainer container) { |
| NestedSetBuilder<Artifact> artifacts = NestedSetBuilder.naiveLinkOrder(); |
| artifacts.addAll(container.getAssets()); |
| artifacts.addAll(container.getResources()); |
| return artifacts.build(); |
| } |
| } |
| |
| private static String convertRoots(Iterable<PathFragment> roots) { |
| return Joiner.on("#").join(Iterables.transform(roots, Functions.toStringFunction())); |
| } |
| |
| public Artifact build(ActionConstructionContext context) { |
| CustomCommandLine.Builder builder = new CustomCommandLine.Builder(); |
| |
| NestedSetBuilder<Artifact> inputs = NestedSetBuilder.naiveLinkOrder(); |
| inputs.addAll(ruleContext.getExecutablePrerequisite("$android_resource_parser", Mode.HOST) |
| .getRunfilesSupport() |
| .getRunfilesArtifactsWithoutMiddlemen()); |
| |
| Preconditions.checkNotNull(primary); |
| builder.add("--primaryData").add(RESOURCE_CONTAINER_TO_ARG.apply(primary)); |
| inputs.addTransitive(RESOURCE_CONTAINER_TO_ARTIFACTS.apply(primary)); |
| |
| List<Artifact> outs = new ArrayList<>(); |
| Preconditions.checkNotNull(output); |
| builder.addExecPath("--output", output); |
| outs.add(output); |
| |
| SpawnAction.Builder spawnActionBuilder = new SpawnAction.Builder(); |
| // Create the spawn action. |
| ruleContext.registerAction( |
| spawnActionBuilder |
| .addTransitiveInputs(inputs.build()) |
| .addOutputs(ImmutableList.copyOf(outs)) |
| .setCommandLine(builder.build()) |
| .setExecutable( |
| ruleContext.getExecutablePrerequisite("$android_resource_parser", Mode.HOST)) |
| .setProgressMessage("Parsing Android resources for " + ruleContext.getLabel()) |
| .setMnemonic("AndroidResourceParser") |
| .build(context)); |
| return output; |
| } |
| } |