Examples with Sha1HashCode com.facebook.buck.util.sha1.Sha1HashCode used on opensource projects

Example 16 with Sha1HashCode

use of com.facebook.buck.util.sha1.Sha1HashCode in project buck by facebook.

the class DefaultProjectFilesystemDelegate method computeSha1.

@Override
public Sha1HashCode computeSha1(Path pathRelativeToProjectRootOrJustAbsolute) throws IOException {
    final Path fileToHash = getPathForRelativePath(pathRelativeToProjectRootOrJustAbsolute);
    // Normally, we would just use `Files.hash(fileToHash.toFile(), Hashing.sha1())`, but if
    // fileToHash is backed by Jimfs, its toFile() method throws an UnsupportedOperationException.
    // Creating the input stream via java.nio.file.Files.newInputStream() avoids this issue.
    ByteSource source = new ByteSource() {

        @Override
        public InputStream openStream() throws IOException {
            // which already buffers.
            return Files.newInputStream(fileToHash);
        }
    };
    HashCode hashCode = source.hash(Hashing.sha1());
    return Sha1HashCode.fromHashCode(hashCode);
}

Example 17 with Sha1HashCode

use of com.facebook.buck.util.sha1.Sha1HashCode in project buck by facebook.

the class SmartDexingStepTest method testDxPseudoRuleCaching.

/**
   * Tests whether pseudo rule cache detection is working properly.
   */
@Test
public void testDxPseudoRuleCaching() throws IOException {
    File testIn = new File(tmpDir.getRoot(), "testIn");
    try (ZipOutputStream zipOut = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(testIn)))) {
        zipOut.putNextEntry(new ZipEntry("foobar"));
        zipOut.write(new byte[] { 0 });
    }
    File outputFile = tmpDir.newFile("out.dex");
    Path outputHashFile = new File(tmpDir.getRoot(), "out.dex.hash").toPath();
    Files.write("dummy", outputHashFile.toFile(), Charsets.UTF_8);
    ProjectFilesystem filesystem = new ProjectFilesystem(tmpDir.getRoot().toPath());
    Sha1HashCode actualHashCode = Sha1HashCode.of(Strings.repeat("a", 40));
    DxPseudoRule rule = new DxPseudoRule(filesystem, ImmutableMap.of(testIn.toPath(), actualHashCode), ImmutableSet.of(testIn.toPath()), outputFile.toPath(), outputHashFile, EnumSet.of(DxStep.Option.NO_OPTIMIZE), Optional.empty(), Optional.empty());
    assertFalse("'dummy' is not a matching input hash", rule.checkIsCached());
    // Write the real hash into the output hash file and ensure that checkIsCached now
    // yields true.
    String actualHash = rule.hashInputs();
    assertFalse(actualHash.isEmpty());
    Files.write(actualHash, outputHashFile.toFile(), Charsets.UTF_8);
    assertTrue("Matching input hash should be considered cached", rule.checkIsCached());
}