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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.MutableActionGraph.ActionConflictException;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.FileProvider;
import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder;
import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.Runfiles;
import com.google.devtools.build.lib.analysis.RunfilesProvider;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.analysis.actions.FileWriteAction;
import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.syntax.Type;
/** An implementation of the {@code android_device_script_fixture} rule. */
public class AndroidDeviceScriptFixture implements RuleConfiguredTargetFactory {
@Override
public ConfiguredTarget create(RuleContext ruleContext)
throws InterruptedException, RuleErrorException, ActionConflictException {
Artifact fixtureScript = getFixtureScript(ruleContext);
return new RuleConfiguredTargetBuilder(ruleContext)
.setFilesToBuild(NestedSetBuilder.<Artifact>stableOrder().add(fixtureScript).build())
.addProvider(
RunfilesProvider.class,
RunfilesProvider.simple(
new Runfiles.Builder(ruleContext.getWorkspaceName())
.addArtifact(fixtureScript)
.build()))
.addNativeDeclaredProvider(
new AndroidDeviceScriptFixtureInfoProvider(
fixtureScript,
AndroidCommon.getSupportApks(ruleContext),
ruleContext.attributes().get("daemon", Type.BOOLEAN),
ruleContext.attributes().get("strict_exit", Type.BOOLEAN)))
.build();
}
/**
* Gets the fixture script from the {@code script} attribute if set or else writes a file
* containing the contents of the {@code cmd} attribute. Also, checks that exactly one of {@code
* script} and {@code cmd} is set.
*/
private static Artifact getFixtureScript(RuleContext ruleContext)
throws RuleErrorException, InterruptedException {
String cmd = null;
if (ruleContext.attributes().isAttributeValueExplicitlySpecified("cmd")) {
cmd = ruleContext.attributes().get("cmd", Type.STRING);
}
TransitiveInfoCollection script = ruleContext.getPrerequisite("script", Mode.TARGET);
if (((cmd == null) && (script == null)) || ((cmd != null) && (script != null))) {
ruleContext.throwWithRuleError(
"android_host_service_fixture requires that exactly one of the script and cmd attributes "
+ "be specified");
}
if (cmd == null) {
// The fact that there is only one file and that it has the right extension is enforced by the
// rule definition.
return Iterables.getOnlyElement(script.getProvider(FileProvider.class).getFilesToBuild());
} else {
return writeFixtureScript(ruleContext, cmd);
}
}
private static Artifact writeFixtureScript(RuleContext ruleContext, String cmd)
throws InterruptedException {
Artifact output =
ruleContext.getUniqueDirectoryArtifact(
"cmd_device_fixtures", "cmd.sh", ruleContext.getBinOrGenfilesDirectory());
ruleContext.registerAction(FileWriteAction.create(ruleContext, output, cmd, false));
return output;
}
}
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