Merge remote-tracking branch 'FabricMC/dev/0.6' into dev/0.6-forge

# Conflicts:
#	src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java
#	src/main/java/net/fabricmc/loom/configuration/providers/minecraft/assets/MinecraftAssetsProvider.java

src/main/java/net/fabricmc/loom/configuration/LoomDependencyManager.java

@@ -130,7 +130,7 @@ public class LoomDependencyManager {
 					try {
 						provider.provide(info, afterTasks::add);
 					} catch (Exception e) {
-						throw new RuntimeException("Failed to provide " + dependency.getGroup() + ":" + dependency.getName() + ":" + dependency.getVersion() + " : " + e.toString(), e);
+						throw new RuntimeException("Failed to provide " + dependency.getGroup() + ":" + dependency.getName() + ":" + dependency.getVersion() + " : " + e.toString() + "\n\tEnsure minecraft is not open and try running with --refresh-dependencies. Use --stacktrace to see the full stacktrace.", e);
 					}
 				}
 			}

src/main/java/net/fabricmc/loom/configuration/providers/MinecraftProvider.java

@@ -110,8 +110,7 @@ public class MinecraftProvider extends DependencyProvider {
 			try {
 				mergeJars(getProject().getLogger());
 			} catch (ZipError e) {
-				DownloadUtil.delete(minecraftClientJar);
-				DownloadUtil.delete(minecraftServerJar);
+				deleteFiles();
 
 				getProject().getLogger().error("Could not merge JARs! Deleting source JARs - please re-run the command and move on.", e);
 				throw new RuntimeException();
@@ -127,6 +126,12 @@ public class MinecraftProvider extends DependencyProvider {
 		versionManifestJson = new File(getExtension().getUserCache(), "version_manifest.json");
 	}
 
+	public void deleteFiles() {
+		DownloadUtil.delete(minecraftClientJar);
+		DownloadUtil.delete(minecraftServerJar);
+		DownloadUtil.delete(minecraftMergedJar);
+	}
+
 	private void downloadMcJson(boolean offline) throws IOException {
 		if (getExtension().isShareCaches() && !getExtension().isRootProject() && versionManifestJson.exists() && !isRefreshDeps()) {
 			return;

src/main/java/net/fabricmc/loom/configuration/providers/minecraft/MinecraftMappedProvider.java

@@ -50,6 +50,7 @@ import net.fabricmc.loom.configuration.DependencyProvider;
 import net.fabricmc.loom.configuration.providers.MinecraftProvider;
 import net.fabricmc.loom.configuration.providers.mappings.MappingsProvider;
 import net.fabricmc.loom.util.Constants;
+import net.fabricmc.loom.util.DownloadUtil;
 import net.fabricmc.loom.util.TinyRemapperMappingsHelper;
 import net.fabricmc.loom.util.srg.AtRemapper;
 import net.fabricmc.loom.util.srg.CoreModClassRemapper;
@@ -109,13 +110,13 @@ public class MinecraftMappedProvider extends DependencyProvider {
 				mapMinecraftJar();
 			} catch (Throwable t) {
 				// Cleanup some some things that may be in a bad state now
-				minecraftMappedJar.delete();
-				minecraftIntermediaryJar.delete();
+				DownloadUtil.delete(minecraftMappedJar);
+				DownloadUtil.delete(minecraftIntermediaryJar);
+				getExtension().getMinecraftProvider().deleteFiles();
 
 				if (getExtension().isForge()) {
 					minecraftSrgJar.delete();
 				}
-
 				getExtension().getMappingsProvider().cleanFiles();
 				throw new RuntimeException("Failed to remap minecraft", t);
 			}

src/main/java/net/fabricmc/loom/configuration/providers/minecraft/assets/MinecraftAssetsProvider.java

@@ -110,18 +110,20 @@ public class MinecraftAssetsProvider {
 				} else if (HashedDownloadUtil.requiresDownload(file, sha1, project.getLogger())) {
 					toDownload++;
 
-					if (progressBar[0] == null) {
-						progressBar[0] = new ProgressBarBuilder()
-								.setConsumer(new DelegatingProgressBarConsumer(project.getLogger()::lifecycle))
-								.setInitialMax(toDownload)
-								.setUpdateIntervalMillis(2000)
-								.setTaskName(":downloading assets")
-								.setStyle(ProgressBarStyle.ASCII)
-								.showSpeed()
-								.build();
-					}
+					synchronized (progressBar) {
+						if (progressBar[0] == null) {
+							progressBar[0] = new ProgressBarBuilder()
+									.setConsumer(new DelegatingProgressBarConsumer(project.getLogger()::lifecycle))
+									.setInitialMax(toDownload)
+									.setUpdateIntervalMillis(2000)
+									.setTaskName(":downloading assets")
+									.setStyle(ProgressBarStyle.ASCII)
+									.showSpeed()
+									.build();
+						}
 
-					progressBar[0].maxHint(toDownload);
+						progressBar[0].maxHint(toDownload);
+					}
 
 					executor.execute(() -> {
 						String assetName = entry.getKey();
@@ -134,12 +136,12 @@ public class MinecraftAssetsProvider {
 						project.getLogger().debug(":downloading asset " + assetName);
 
 						try {
-							HashedDownloadUtil.downloadIfInvalid(new URL(Constants.RESOURCES_BASE + sha1.substring(0, 2) + "/" + sha1), file, sha1, project.getLogger(), true);
+							HashedDownloadUtil.downloadIfInvalid(new URL(Constants.RESOURCES_BASE + sha1.substring(0, 2) + "/" + sha1), file, sha1, project.getLogger(), true, false);
 						} catch (IOException e) {
 							throw new RuntimeException("Failed to download: " + assetName, e);
 						}
 
-						synchronized (progressBar[0]) {
+						synchronized (progressBar) {
 							progressBar[0].step();
 						}
 					});

src/main/java/net/fabricmc/loom/util/DownloadUtil.java

@@ -221,5 +221,7 @@ public class DownloadUtil {
 		if (etagFile.exists()) {
 			etagFile.delete();
 		}
+
+		HashedDownloadUtil.delete(file);
 	}
 }

src/main/java/net/fabricmc/loom/util/GroovyXmlUtil.java

@@ -29,13 +29,14 @@ import java.util.Optional;
 import java.util.stream.Stream;
 
 import groovy.util.Node;
+import groovy.xml.QName;
 
 public final class GroovyXmlUtil {
 	private GroovyXmlUtil() { }
 
 	public static Node getOrCreateNode(Node parent, String name) {
 		for (Object object : parent.children()) {
-			if (object instanceof Node && name.equals(((Node) object).name())) {
+			if (object instanceof Node && isSameName(((Node) object).name(), name)) {
 				return (Node) object;
 			}
 		}
@@ -45,7 +46,7 @@ public final class GroovyXmlUtil {
 
 	public static Optional<Node> getNode(Node parent, String name) {
 		for (Object object : parent.children()) {
-			if (object instanceof Node && name.equals(((Node) object).name())) {
+			if (object instanceof Node && isSameName(((Node) object).name(), name)) {
 				return Optional.of((Node) object);
 			}
 		}
@@ -53,6 +54,18 @@ public final class GroovyXmlUtil {
 		return Optional.empty();
 	}
 
+	private static boolean isSameName(Object nodeName, String givenName) {
+		if (nodeName instanceof String) {
+			return nodeName.equals(givenName);
+		}
+
+		if (nodeName instanceof QName) {
+			return ((QName) nodeName).matches(givenName);
+		}
+
+		throw new UnsupportedOperationException("Cannot determine if " + nodeName.getClass() + " is the same as a String");
+	}
+
 	public static Stream<Node> childrenNodesStream(Node node) {
 		//noinspection unchecked
 		return (Stream<Node>) (Stream) (((List<Object>) node.children()).stream().filter((i) -> i instanceof Node));

src/main/java/net/fabricmc/loom/util/HashedDownloadUtil.java

@@ -56,16 +56,27 @@ public class HashedDownloadUtil {
 	}
 
 	public static void downloadIfInvalid(URL from, File to, String expectedHash, Logger logger, boolean quiet) throws IOException {
+		downloadIfInvalid(from, to, expectedHash, logger, quiet, true);
+	}
+
+	public static void downloadIfInvalid(URL from, File to, String expectedHash, Logger logger, boolean quiet, boolean strict) throws IOException {
 		if (LoomGradlePlugin.refreshDeps) {
 			delete(to);
 		}
 
 		if (to.exists()) {
-			String sha1 = getSha1(to, logger);
+			if (strict) {
+				if (Checksum.equals(to, expectedHash)) {
+					// The hash matches the target file
+					return;
+				}
+			} else {
+				String sha1 = getSha1(to, logger);
 
-			if (expectedHash.equals(sha1)) {
-				// The hash in the sha1 file matches
-				return;
+				if (expectedHash.equals(sha1)) {
+					// The hash in the sha1 file matches
+					return;
+				}
 			}
 		}
 
@@ -77,6 +88,7 @@ public class HashedDownloadUtil {
 
 		if ((code < 200 || code > 299) && code != HttpURLConnection.HTTP_NOT_MODIFIED) {
 			//Didn't get what we expected
+			delete(to);
 			throw new IOException(connection.getResponseMessage() + " for " + from);
 		}