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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.rules.android;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.ParameterFile.ParameterFileType;
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.CustomCommandLine;
import com.google.devtools.build.lib.analysis.actions.CustomCommandLine.VectorArg;
import com.google.devtools.build.lib.analysis.actions.ParamFileInfo;
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.rules.android.ResourceContainerConverter.Builder.SeparatorType;
import com.google.devtools.build.lib.util.OS;
/**
* Builder for generating R classes for robolectric action.
*
* <p>This builder will create an action that generates r classes with internally consistent
* resource ids for the transitive closure of dependencies that provide resources.
*/
public class RobolectricResourceSymbolsActionBuilder {
private static final ResourceContainerConverter.ToArg RESOURCE_CONTAINER_TO_ARG =
ResourceContainerConverter.builder()
.includeResourceRoots()
.includeManifest()
.includeRTxt()
.includeSymbolsBin()
.withSeparator(SeparatorType.COLON_COMMA)
.toArgConverter();
private Artifact classJarOut;
private final ResourceDependencies dependencies;
private AndroidSdkProvider sdk;
private RobolectricResourceSymbolsActionBuilder(ResourceDependencies dependencies) {
this.dependencies = dependencies;
}
public static RobolectricResourceSymbolsActionBuilder create(ResourceDependencies dependencies) {
return new RobolectricResourceSymbolsActionBuilder(dependencies);
}
public RobolectricResourceSymbolsActionBuilder setJarOut(Artifact classJar) {
this.classJarOut = classJar;
return this;
}
public RobolectricResourceSymbolsActionBuilder setSdk(AndroidSdkProvider sdk) {
this.sdk = sdk;
return this;
}
public NestedSet<Artifact> buildAsClassPathEntry(RuleContext ruleContext) {
CustomCommandLine.Builder builder = new CustomCommandLine.Builder();
// Set the busybox tool.
builder.add("--tool").add("GENERATE_ROBOLECTRIC_R").add("--");
NestedSetBuilder<Artifact> inputs = NestedSetBuilder.stableOrder();
builder.addExecPath("--androidJar", sdk.getAndroidJar());
inputs.add(sdk.getAndroidJar());
if (!Iterables.isEmpty(dependencies.getResources())) {
builder.addAll(
"--data",
VectorArg.join(RESOURCE_CONTAINER_TO_ARG.listSeparator())
.each(dependencies.getResources())
.mapped(RESOURCE_CONTAINER_TO_ARG));
}
inputs
.addTransitive(dependencies.getTransitiveResourceRoots())
.addTransitive(dependencies.getTransitiveManifests())
.addTransitive(dependencies.getTransitiveRTxt())
.addTransitive(dependencies.getTransitiveSymbolsBin());
builder.addExecPath("--classJarOutput", classJarOut);
SpawnAction.Builder spawnActionBuilder = new SpawnAction.Builder();
ParamFileInfo.Builder paramFile = ParamFileInfo.builder(ParameterFileType.UNQUOTED);
// Some flags (e.g. --mainData) may specify lists (or lists of lists) separated by special
// characters (colon, semicolon, hashmark, ampersand) that don't work on Windows, and quoting
// semantics are very complicated (more so than in Bash), so let's just always use a parameter
// file.
// TODO(laszlocsomor), TODO(corysmith): restructure the Android BusyBux's flags by deprecating
// list-type and list-of-list-type flags that use such problematic separators in favor of
// multi-value flags (to remove one level of listing) and by changing all list separators to a
// platform-safe character (= comma).
paramFile.setUseAlways(OS.getCurrent() == OS.WINDOWS);
ruleContext.registerAction(
spawnActionBuilder
.useDefaultShellEnvironment()
.addTransitiveInputs(inputs.build())
.addOutput(classJarOut)
.addCommandLine(builder.build(), paramFile.build())
.setExecutable(
ruleContext.getExecutablePrerequisite("$android_resources_busybox", Mode.HOST))
.setProgressMessage("Generating R classes for %s", ruleContext.getLabel())
.setMnemonic("GenerateRobolectricRClasses")
.build(ruleContext));
return NestedSetBuilder.<Artifact>naiveLinkOrder().add(classJarOut).build();
}
}
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