| // Copyright 2022 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.skyframe; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static com.google.devtools.build.lib.testutil.MoreAsserts.assertContainsEvent; |
| import static com.google.devtools.build.lib.testutil.MoreAsserts.assertDoesNotContainEvent; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.devtools.build.lib.buildtool.util.BuildIntegrationTestCase; |
| import com.google.devtools.build.lib.events.EventKind; |
| import com.google.devtools.build.lib.events.util.EventCollectionApparatus; |
| import com.google.devtools.build.lib.vfs.FileSystemUtils; |
| import com.google.devtools.build.lib.vfs.Path; |
| import com.google.testing.junit.testparameterinjector.TestParameter; |
| import com.google.testing.junit.testparameterinjector.TestParameterInjector; |
| import java.io.IOException; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** Tests for {@link TrackSourceDirectoriesFlag}. */ |
| @RunWith(TestParameterInjector.class) |
| public final class TrackSourceDirectoriesIntegrationTest extends BuildIntegrationTestCase { |
| |
| @Override |
| protected EventCollectionApparatus createEvents() { |
| return new EventCollectionApparatus(ImmutableSet.of(EventKind.FINISH)); |
| } |
| |
| @BeforeClass |
| public static void checkTrackSourceDirectoriesFlag() { |
| // Enabled via jvm_flags. |
| assertThat(TrackSourceDirectoriesFlag.trackSourceDirectories()).isTrue(); |
| } |
| |
| @Test |
| public void build_unchangedSourceDirectory_doesNotRebuild() throws Exception { |
| getWorkspace().getRelative("pkg/dir/empty_dir").createDirectoryAndParents(); |
| write("pkg/dir/file", "foo"); |
| write( |
| "pkg/BUILD", |
| "genrule(", |
| " name = 'a',", |
| " srcs = ['dir'],", |
| " outs = ['out'],", |
| " cmd = 'touch $@',", |
| ")"); |
| |
| String testTarget = "//pkg:a"; |
| String testTargetRebuildsEvent = "Executing genrule " + testTarget; |
| |
| // Initial build |
| buildTarget(testTarget); |
| assertContainsEvent(events.collector(), testTargetRebuildsEvent); |
| events.collector().clear(); |
| |
| // Verify that the target doesn't rebuild without changes. |
| buildTarget(testTarget); |
| |
| assertDoesNotContainEvent(events.collector(), testTargetRebuildsEvent); |
| } |
| |
| private enum Change { |
| CREATE_EMPTY_DIRECTORY { |
| @Override |
| void apply(Path sourceDirectory) throws IOException { |
| sourceDirectory.getRelative("empty_dir/nested_empty_dir").createDirectory(); |
| } |
| }, |
| CREATE_EMPTY_FILE_IN_EMPTY_DIRECTORY { |
| @Override |
| void apply(Path sourceDirectory) throws IOException { |
| FileSystemUtils.createEmptyFile(sourceDirectory.getRelative("empty_dir/file")); |
| } |
| }, |
| REMOVE_EMPTY_DIRECTORY { |
| @Override |
| void apply(Path sourceDirectory) throws IOException { |
| sourceDirectory.getChild("empty_dir").deleteTree(); |
| } |
| }, |
| REPLACE_EMPTY_DIRECTORY_WITH_EMPTY_FILE { |
| @Override |
| void apply(Path sourceDirectory) throws IOException { |
| sourceDirectory.getChild("empty_dir").deleteTree(); |
| FileSystemUtils.createEmptyFile(sourceDirectory.getChild("empty_dir")); |
| } |
| }, |
| CHANGE_FILE_CONTENT { |
| @Override |
| void apply(Path sourceDirectory) throws IOException { |
| FileSystemUtils.writeContentAsLatin1(sourceDirectory.getChild("file"), "changed"); |
| } |
| }; |
| |
| abstract void apply(Path sourceDirectory) throws IOException; |
| } |
| |
| @Test |
| public void build_changedSourceDirectory_rebuildsTarget(@TestParameter Change change) |
| throws Exception { |
| getWorkspace().getRelative("pkg/dir/empty_dir").createDirectoryAndParents(); |
| write("pkg/dir/file", "foo"); |
| write( |
| "pkg/BUILD", |
| "genrule(", |
| " name = 'a',", |
| " srcs = ['dir'],", |
| " outs = ['out'],", |
| " cmd = 'touch $@',", |
| ")"); |
| |
| String testTarget = "//pkg:a"; |
| String testTargetRebuildsEvent = "Executing genrule " + testTarget; |
| |
| // Initial build |
| buildTarget(testTarget); |
| assertContainsEvent(events.collector(), testTargetRebuildsEvent); |
| events.collector().clear(); |
| |
| // Change source directory and verify that the target is rebuilt as expected. |
| change.apply(getWorkspace().getRelative("pkg/dir")); |
| buildTarget(testTarget); |
| |
| assertContainsEvent(events.collector(), testTargetRebuildsEvent); |
| } |
| } |