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package cbt;
import java.io.*;
import java.lang.reflect.*;
import java.net.*;
import java.nio.*;
import java.nio.file.*;
import java.security.*;
import java.util.*;
import javax.xml.bind.annotation.adapters.HexBinaryAdapter;
import static java.io.File.pathSeparator;
import static cbt.Stage0Lib.*;
import static cbt.NailgunLauncher.*;
public class Stage0Lib{
public static void _assert(Boolean condition, Object msg){
if(!condition){
throw new AssertionError("Assertion failed: "+msg);
}
}
public static int runMain(String cls, String[] args, ClassLoader cl) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException{
try{
System.setSecurityManager( new TrapSecurityManager() );
cl.loadClass(cls)
.getMethod("main", String[].class)
.invoke( null, (Object) args);
return 0;
}catch( InvocationTargetException exception ){
Throwable cause = exception.getCause();
if(cause instanceof TrappedExitCode){
return ((TrappedExitCode) cause).exitCode;
}
throw exception;
} finally {
System.setSecurityManager(NailgunLauncher.defaultSecurityManager);
}
}
public static int zinc( EarlyDependencies earlyDeps, List<File> sourceFiles ) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException{
String cp = NAILGUN+TARGET + pathSeparator + earlyDeps.scalaXml_1_0_5_File + pathSeparator + earlyDeps.scalaLibrary_2_11_8_File;
List<String> zincArgs = new ArrayList<String>(
Arrays.asList(
new String[]{
"-scala-compiler", earlyDeps.scalaCompiler_2_11_8_File,
"-scala-library", earlyDeps.scalaLibrary_2_11_8_File,
"-scala-extra", earlyDeps.scalaReflect_2_11_8_File,
"-sbt-interface", earlyDeps.sbtInterface_0_13_9_File,
"-compiler-interface", earlyDeps.compilerInterface_0_13_9_File,
"-cp", cp,
"-d", STAGE1+TARGET
}
)
);
for( File f: sourceFiles ){
zincArgs.add(f.toString());
}
PrintStream oldOut = System.out;
try{
System.setOut(System.err);
return runMain( "com.typesafe.zinc.Main", zincArgs.toArray(new String[zincArgs.size()]), earlyDeps.zinc );
} finally {
System.setOut(oldOut);
}
}
public static ClassLoader classLoader( String file ) throws MalformedURLException{
return new CbtURLClassLoader(
new URL[]{ new URL("file:"+file) }
);
}
public static ClassLoader classLoader( String file, ClassLoader parent ) throws MalformedURLException{
return new CbtURLClassLoader(
new URL[]{ new URL("file:"+file) }, parent
);
}
public static ClassLoader cacheGet( String key ){
return classLoaderCacheValues.get(
classLoaderCacheKeys.get( key )
);
}
public static ClassLoader cachePut( ClassLoader classLoader, String... jars ){
String key = join( pathSeparator, jars );
Object keyObject = new Object();
classLoaderCacheKeys.put( key, keyObject );
classLoaderCacheValues.put( keyObject, classLoader );
return classLoader;
}
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());
}
public static String join(String separator, String[] parts){
String result = parts[0];
for(int i = 1; i < parts.length; i++){
result += separator + parts[i];
}
return result;
}
}
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