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// Copyright 2018 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.skylark;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.ActionAnalysisMetadata;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.AnalysisResult;
import com.google.devtools.build.lib.analysis.ConfiguredAspect;
import com.google.devtools.build.lib.analysis.util.AnalysisTestCase;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.SkylarkProvider.SkylarkKey;
import com.google.devtools.build.lib.packages.StructImpl;
import com.google.devtools.build.lib.syntax.SkylarkDict;
import com.google.devtools.build.lib.syntax.SkylarkList;
import java.util.List;
import java.util.stream.Collectors;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for the Skylark-accessible actions provider on rule configured targets. */
@RunWith(JUnit4.class)
public class SkylarkActionProviderTest extends AnalysisTestCase {
@Test
public void aspectGetsActionProviderForNativeRule() throws Exception {
scratch.file(
"test/aspect.bzl",
"foo = provider()",
"def _impl(target, ctx):",
" return [foo(actions = target.actions)]",
"MyAspect = aspect(implementation=_impl)");
scratch.file(
"test/BUILD",
"genrule(",
" name = 'xxx',",
" cmd = 'echo \"hello\" > $@',",
" outs = ['mygen.out']",
")");
AnalysisResult analysisResult =
update(ImmutableList.of("test/aspect.bzl%MyAspect"), "//test:xxx");
ConfiguredAspect configuredAspect =
Iterables.getOnlyElement(analysisResult.getAspects()).getConfiguredAspect();
SkylarkKey fooKey =
new SkylarkKey(Label.parseAbsolute("//test:aspect.bzl", ImmutableMap.of()), "foo");
StructImpl fooProvider = (StructImpl) configuredAspect.get(fooKey);
assertThat(fooProvider.getValue("actions")).isNotNull();
@SuppressWarnings("unchecked")
SkylarkList<ActionAnalysisMetadata> actions =
(SkylarkList<ActionAnalysisMetadata>) fooProvider.getValue("actions");
assertThat(actions).isNotEmpty();
ActionAnalysisMetadata action = actions.get(0);
assertThat(action.getMnemonic()).isEqualTo("Genrule");
}
@Test
@SuppressWarnings("unchecked")
public void aspectGetsActionProviderForSkylarkRule() throws Exception {
scratch.file(
"test/aspect.bzl",
"foo = provider()",
"def _impl(target, ctx):",
" mnemonics = [a.mnemonic for a in target.actions]",
" envs = [a.env for a in target.actions]",
" inputs = [a.inputs.to_list() for a in target.actions]",
" outputs = [a.outputs.to_list() for a in target.actions]",
" argv = [a.argv for a in target.actions]",
" return [foo(",
" actions = target.actions,",
" mnemonics = mnemonics,",
" envs = envs,",
" inputs = inputs,",
" outputs = outputs,",
" argv = argv",
" )]",
"MyAspect = aspect(implementation=_impl)");
scratch.file(
"test/rule.bzl",
"def impl(ctx):",
" output_file0 = ctx.new_file('myfile0')",
" output_file1 = ctx.new_file('myfile1')",
" executable = ctx.new_file('executable')",
" ctx.actions.run(outputs=[output_file0], executable=executable,",
" mnemonic='MyAction0', env={'foo':'bar', 'pet':'puppy'})",
" ctx.actions.run_shell(outputs=[executable, output_file1],",
" command='fakecmd', mnemonic='MyAction1', env={'pet':'bunny'})",
" return None",
"my_rule = rule(impl)");
scratch.file(
"test/BUILD", "load('//test:rule.bzl', 'my_rule')", "my_rule(", " name = 'xxx',", ")");
AnalysisResult analysisResult =
update(ImmutableList.of("test/aspect.bzl%MyAspect"), "//test:xxx");
ConfiguredAspect configuredAspect =
Iterables.getOnlyElement(analysisResult.getAspects()).getConfiguredAspect();
SkylarkKey fooKey =
new SkylarkKey(Label.parseAbsolute("//test:aspect.bzl", ImmutableMap.of()), "foo");
StructImpl fooProvider = (StructImpl) configuredAspect.get(fooKey);
assertThat(fooProvider.getValue("actions")).isNotNull();
SkylarkList<ActionAnalysisMetadata> actions =
(SkylarkList<ActionAnalysisMetadata>) fooProvider.getValue("actions");
assertThat(actions).hasSize(2);
SkylarkList<String> mnemonics =
(SkylarkList<String>) fooProvider.getValue("mnemonics");
assertThat(mnemonics).containsExactly("MyAction0", "MyAction1");
SkylarkList<SkylarkDict<String, String>> envs =
(SkylarkList<SkylarkDict<String, String>>) fooProvider.getValue("envs");
assertThat(envs).containsExactly(
SkylarkDict.of(null, "foo", "bar", "pet", "puppy"),
SkylarkDict.of(null, "pet", "bunny"));
SkylarkList<SkylarkList<Artifact>> inputs =
(SkylarkList<SkylarkList<Artifact>>) fooProvider.getValue("inputs");
assertThat(flattenArtifactNames(inputs)).containsExactly("executable");
SkylarkList<SkylarkList<Artifact>> outputs =
(SkylarkList<SkylarkList<Artifact>>) fooProvider.getValue("outputs");
assertThat(flattenArtifactNames(outputs)).containsExactly("myfile0", "executable", "myfile1");
SkylarkList<SkylarkList<String>> argv =
(SkylarkList<SkylarkList<String>>) fooProvider.getValue("argv");
assertThat(argv.get(0)).hasSize(1);
assertThat(argv.get(0).get(0)).endsWith("executable");
assertThat(argv.get(1)).contains("fakecmd");
}
private static List<String> flattenArtifactNames(
SkylarkList<SkylarkList<Artifact>> artifactLists) {
return artifactLists.stream()
.flatMap(artifacts -> artifacts.stream())
.map(artifact -> artifact.getFilename())
.collect(Collectors.toList());
}
}