diff options
Diffstat (limited to 'bootstrap_scala/BootstrapScala.java')
-rw-r--r-- | bootstrap_scala/BootstrapScala.java | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/bootstrap_scala/BootstrapScala.java b/bootstrap_scala/BootstrapScala.java deleted file mode 100644 index e2d7a5a..0000000 --- a/bootstrap_scala/BootstrapScala.java +++ /dev/null @@ -1,85 +0,0 @@ -import java.io.File; -import java.io.InputStream; -import java.io.IOException; -import java.net.MalformedURLException; -import java.net.URL; -import java.nio.file.Files; -import java.nio.file.Path; -import java.nio.file.Paths; -import java.nio.file.StandardCopyOption; -import java.security.MessageDigest; -import java.security.NoSuchAlgorithmException; -import java.util.Arrays; -import java.util.Iterator; -import javax.xml.bind.annotation.adapters.HexBinaryAdapter; - -/** - * This file class allows bootstrapping out of Java into Scala. It downloads the Scala jars for the - * version number given as the first argument into the directory given as the second argument and - * returns a classpath String. - */ -public class BootstrapScala { - - public final static Dependency[] dependencies(String target, String scalaVersion) throws MalformedURLException { - return new Dependency[] { - Dependency.scala(target, scalaVersion, "library", "DDD5A8BCED249BEDD86FB4578A39B9FB71480573"), - Dependency.scala(target, scalaVersion, "compiler","FE1285C9F7B58954C5EF6D80B59063569C065E9A"), - Dependency.scala(target, scalaVersion, "reflect", "B74530DEEBA742AB4F3134DE0C2DA0EDC49CA361"), - new Dependency(target, "modules/scala-xml_2.11/1.0.5", "scala-xml_2.11-1.0.5", "77ac9be4033768cf03cc04fbd1fc5e5711de2459") - }; - } - - public static void main(String args[]) throws IOException, NoSuchAlgorithmException { - - if(args.length < 2){ - System.err.println("Usage: bootstrap_scala <scala version> <download directory>"); - System.exit(1); - } - - Dependency[] ds = dependencies( args[1], args[0] ); - new File(args[1]).mkdirs(); - for (Dependency d: ds) { - download( d.url, d.path, d.hash ); - } - - // Join dep. paths as a classpath - String classpath = ""; - Iterator<Dependency> depsIter = Arrays.asList(ds).iterator(); - while (depsIter.hasNext()) { - Dependency dep = depsIter.next(); - classpath += dep.path.toString(); - if (depsIter.hasNext()) { - classpath += File.pathSeparator; - } - } - - System.out.println(classpath); - - } - - public static void download(URL urlString, Path target, String sha1) throws IOException, NoSuchAlgorithmException { - final Path unverified = Paths.get(target+".unverified"); - if(!Files.exists(target)) { - new File(target.toString()).getParentFile().mkdirs(); - System.err.println("downloading " + urlString); - System.err.println("to " + target); - final InputStream stream = urlString.openStream(); - Files.copy(stream, unverified, StandardCopyOption.REPLACE_EXISTING); - stream.close(); - final String checksum = sha1(Files.readAllBytes(unverified)); - if(sha1 == null || sha1.toUpperCase().equals(checksum)) { - Files.move(unverified, target, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE); - } else { - System.err.println(target + " checksum does not match.\nExpected: |" + sha1 + "|\nFound: |" + checksum + "|"); - System.exit(1); - } - } - } - - public static String sha1(byte[] bytes) throws NoSuchAlgorithmException { - final MessageDigest sha1 = MessageDigest.getInstance("SHA1"); - sha1.update(bytes, 0, bytes.length); - return (new HexBinaryAdapter()).marshal(sha1.digest()); - } - -} |