Examples with FileLike com.facebook.buck.jvm.java.classes.FileLike used on opensource projects

Example 6 with FileLike

use of com.facebook.buck.jvm.java.classes.FileLike in project buck by facebook.

the class HashInputJarsToDexStep method execute.

@Override
public StepExecutionResult execute(final ExecutionContext context) {
    ImmutableList.Builder<Path> allInputs = ImmutableList.builder();
    allInputs.addAll(primaryInputsToDex.get());
    if (secondaryOutputToInputs.isPresent()) {
        allInputs.addAll(secondaryOutputToInputs.get().get().values());
    }
    final Map<String, HashCode> classNamesToHashes = classNamesToHashesSupplier.get();
    for (Path path : allInputs.build()) {
        try {
            final Hasher hasher = Hashing.sha1().newHasher();
            new DefaultClasspathTraverser().traverse(new ClasspathTraversal(Collections.singleton(path), filesystem) {

                @Override
                public void visit(FileLike fileLike) throws IOException {
                    String className = fileLike.getRelativePath().replaceAll("\\.class$", "");
                    if (classNamesToHashes.containsKey(className)) {
                        HashCode classHash = Preconditions.checkNotNull(classNamesToHashes.get(className));
                        hasher.putBytes(classHash.asBytes());
                    }
                }
            });
            dexInputsToHashes.put(path, Sha1HashCode.fromHashCode(hasher.hash()));
        } catch (IOException e) {
            context.logError(e, "Error hashing smart dex input: %s", path);
            return StepExecutionResult.ERROR;
        }
    }
    stepFinished = true;
    return StepExecutionResult.SUCCESS;
}