Examples with FileHashLoader com.facebook.buck.hashing.FileHashLoader used on opensource projects

Example 1 with FileHashLoader

use of com.facebook.buck.hashing.FileHashLoader in project buck by facebook.

the class TargetsCommand method computeShowTargetHash.

private void computeShowTargetHash(CommandRunnerParams params, ListeningExecutorService executor, TargetGraphAndTargetNodes targetGraphAndTargetNodes, Map<BuildTarget, ShowOptions.Builder> showRulesResult) throws IOException, InterruptedException, BuildFileParseException, BuildTargetException, CycleException {
    LOG.debug("Getting target hash for %s", targetGraphAndTargetNodes.getTargetNodes());
    TargetGraphAndTargetNodes targetGraphAndNodesWithTests = computeTargetsAndGraphToShowTargetHash(params, executor, targetGraphAndTargetNodes);
    TargetGraph targetGraphWithTests = targetGraphAndNodesWithTests.getTargetGraph();
    FileHashLoader fileHashLoader = createOrGetFileHashLoader(params);
    // Hash each target's rule description and contents of any files.
    ImmutableMap<BuildTarget, HashCode> buildTargetHashes = new TargetGraphHashing(params.getBuckEventBus(), targetGraphWithTests, fileHashLoader, targetGraphAndNodesWithTests.getTargetNodes()).setNumThreads(params.getBuckConfig().getNumThreads()).hashTargetGraph();
    ImmutableMap<BuildTarget, HashCode> finalHashes = rehashWithTestsIfNeeded(targetGraphWithTests, targetGraphAndTargetNodes.getTargetNodes(), buildTargetHashes);
    for (TargetNode<?, ?> targetNode : targetGraphAndTargetNodes.getTargetNodes()) {
        processTargetHash(targetNode.getBuildTarget(), showRulesResult, finalHashes);
    }
}

Example 2 with FileHashLoader

use of com.facebook.buck.hashing.FileHashLoader in project buck by facebook.

the class DirectHeaderMapTest method testRuleKeyDoesNotChangeIfLinkTargetsChange.

@Test
public void testRuleKeyDoesNotChangeIfLinkTargetsChange() throws IOException {
    BuildRuleResolver ruleResolver = new BuildRuleResolver(TargetGraph.EMPTY, new DefaultTargetNodeToBuildRuleTransformer());
    ruleResolver.addToIndex(buildRule);
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(ruleResolver);
    SourcePathResolver resolver = new SourcePathResolver(ruleFinder);
    // Calculate their rule keys and verify they're different.
    DefaultFileHashCache hashCache = DefaultFileHashCache.createDefaultFileHashCache(new ProjectFilesystem(tmpDir.getRoot()));
    FileHashLoader hashLoader = new StackedFileHashCache(ImmutableList.of(hashCache));
    RuleKey defaultKey1 = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(buildRule);
    RuleKey inputKey1 = new InputBasedRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(buildRule);
    Files.write(file1, "hello other world".getBytes());
    hashCache.invalidateAll();
    RuleKey defaultKey2 = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(buildRule);
    RuleKey inputKey2 = new InputBasedRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(buildRule);
    // When the file content changes, the rulekey should change but the input rulekey should be
    // unchanged. This ensures that a dependent's rulekey changes correctly.
    assertNotEquals(defaultKey1, defaultKey2);
    assertEquals(inputKey1, inputKey2);
}

Example 3 with FileHashLoader

use of com.facebook.buck.hashing.FileHashLoader in project buck by facebook.

the class DirectHeaderMapTest method testSymlinkTreeRuleKeysChangeIfLinkMapChanges.

@Test
public void testSymlinkTreeRuleKeysChangeIfLinkMapChanges() throws Exception {
    Path aFile = tmpDir.newFile();
    Files.write(aFile, "hello world".getBytes(Charsets.UTF_8));
    ImmutableMap.Builder<Path, SourcePath> modifiedLinksBuilder = ImmutableMap.builder();
    for (Path p : links.keySet()) {
        modifiedLinksBuilder.put(tmpDir.getRoot().resolve("modified-" + p.toString()), links.get(p));
    }
    DirectHeaderMap modifiedBuildRule = new DirectHeaderMap(buildTarget, projectFilesystem, symlinkTreeRoot, modifiedLinksBuilder.build(), ruleFinder);
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(new BuildRuleResolver(TargetGraph.EMPTY, new DefaultTargetNodeToBuildRuleTransformer()));
    SourcePathResolver resolver = new SourcePathResolver(ruleFinder);
    // Calculate their rule keys and verify they're different.
    FileHashLoader hashCache = new StackedFileHashCache(ImmutableList.of(DefaultFileHashCache.createDefaultFileHashCache(new ProjectFilesystem(tmpDir.getRoot()))));
    RuleKey key1 = new DefaultRuleKeyFactory(0, hashCache, resolver, ruleFinder).build(buildRule);
    RuleKey key2 = new DefaultRuleKeyFactory(0, hashCache, resolver, ruleFinder).build(modifiedBuildRule);
    assertNotEquals(key1, key2);
    key1 = new InputBasedRuleKeyFactory(0, hashCache, resolver, ruleFinder).build(buildRule);
    key2 = new InputBasedRuleKeyFactory(0, hashCache, resolver, ruleFinder).build(modifiedBuildRule);
    assertNotEquals(key1, key2);
}

Example 4 with FileHashLoader

use of com.facebook.buck.hashing.FileHashLoader in project buck by facebook.

the class HeaderSymlinkTreeWithHeaderMapTest method testSymlinkTreeRuleKeyChangesIfLinkMapChanges.

@Test
public void testSymlinkTreeRuleKeyChangesIfLinkMapChanges() throws Exception {
    Path aFile = tmpDir.newFile();
    Files.write(aFile, "hello world".getBytes(Charsets.UTF_8));
    HeaderSymlinkTreeWithHeaderMap modifiedSymlinkTreeBuildRule = HeaderSymlinkTreeWithHeaderMap.create(buildTarget, projectFilesystem, symlinkTreeRoot, ImmutableMap.of(Paths.get("different/link"), new PathSourcePath(projectFilesystem, MorePaths.relativize(tmpDir.getRoot(), aFile))), ruleFinder);
    // Calculate their rule keys and verify they're different.
    DefaultFileHashCache hashCache = DefaultFileHashCache.createDefaultFileHashCache(new ProjectFilesystem(tmpDir.getRoot()));
    FileHashLoader hashLoader = new StackedFileHashCache(ImmutableList.of(hashCache));
    RuleKey key1 = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(symlinkTreeBuildRule);
    RuleKey key2 = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder).build(modifiedSymlinkTreeBuildRule);
    assertNotEquals(key1, key2);
}

Example 5 with FileHashLoader

use of com.facebook.buck.hashing.FileHashLoader in project buck by facebook.

the class HeaderSymlinkTreeWithHeaderMapTest method testSymlinkTreeRuleKeyChangesIfLinkTargetsChange.

@Test
public void testSymlinkTreeRuleKeyChangesIfLinkTargetsChange() throws IOException {
    ruleResolver.addToIndex(symlinkTreeBuildRule);
    DefaultFileHashCache hashCache = DefaultFileHashCache.createDefaultFileHashCache(new ProjectFilesystem(tmpDir.getRoot()));
    FileHashLoader hashLoader = new StackedFileHashCache(ImmutableList.of(hashCache));
    DefaultRuleKeyFactory ruleKeyFactory = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder);
    // Calculate the rule key
    RuleKey key1 = ruleKeyFactory.build(symlinkTreeBuildRule);
    // Change the contents of the target of the link.
    Path existingFile = resolver.getAbsolutePath(links.values().asList().get(0));
    Files.write(existingFile, "something new".getBytes(Charsets.UTF_8));
    hashCache.invalidateAll();
    ruleKeyFactory = new DefaultRuleKeyFactory(0, hashLoader, resolver, ruleFinder);
    // Re-calculate the rule key
    RuleKey key2 = ruleKeyFactory.build(symlinkTreeBuildRule);
    // Verify that the rules keys are the same.
    assertNotEquals(key1, key2);
}