diff --git a/source/dub/commandline.d b/source/dub/commandline.d
index 74674b272..eca673b7c 100644
--- a/source/dub/commandline.d
+++ b/source/dub/commandline.d
@@ -207,10 +207,7 @@ int runDubCommandLine(string[] args)
 	}
 
 	// execute the command
-	int rc;
-	try {
-		rc = cmd.execute(dub, remaining_args, app_args);
-	}
+	try return cmd.execute(dub, remaining_args, app_args);
 	catch (UsageException e) {
 		logError("%s", e.msg);
 		logDebug("Full exception: %s", e.toString().sanitize);
@@ -222,10 +219,6 @@ int runDubCommandLine(string[] args)
 		logDebug("Full exception: %s", e.toString().sanitize);
 		return 2;
 	}
-
-	if (!cmd.skipDubInitialization)
-		dub.shutdown();
-	return rc;
 }
 
 struct CommonOptions {
@@ -413,7 +406,7 @@ class InitCommand : Command {
 
 		void depCallback(ref PackageRecipe p, ref PackageFormat fmt) {
 			if (m_nonInteractive) return;
-			
+
 			while (true) {
 				string rawfmt = input("Package recipe format (sdl/json)", fmt.to!string);
 				if (!rawfmt.length) break;
@@ -1482,7 +1475,6 @@ class CleanCachesCommand : Command {
 
 	override int execute(Dub dub, string[] free_args, string[] app_args)
 	{
-		dub.cleanCaches();
 		return 0;
 	}
 }
@@ -1630,7 +1622,7 @@ class DustmiteCommand : PackageBuildCommand {
 			auto testcmd = appender!string();
 			testcmd.formattedWrite("%s dustmite --vquiet --test-package=%s --build=%s --config=%s",
 				thisExePath, prj.name, m_buildType, m_buildConfig);
-			
+
 			if (m_compilerName.length) testcmd.formattedWrite(" \"--compiler=%s\"", m_compilerName);
 			if (m_arch.length) testcmd.formattedWrite(" --arch=%s", m_arch);
 			if (m_compilerStatusCode != int.min) testcmd.formattedWrite(" --compiler-status=%s", m_compilerStatusCode);
diff --git a/source/dub/dub.d b/source/dub/dub.d
index 38b3d6101..f6c6f590a 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -117,10 +117,6 @@ class Dub {
 		if (skip_registry < SkipRegistry.standard)
 			ps ~= defaultPackageSuppliers();
 
-		auto cacheDir = m_userDubPath ~ "cache/";
-		foreach (p; ps)
-			p.cacheOp(cacheDir, CacheOp.load);
-
 		m_packageSuppliers = ps;
 		m_packageManager = new PackageManager(m_userDubPath, m_systemDubPath);
 		updatePackageSearchPath();
@@ -153,22 +149,6 @@ class Dub {
 		m_systemConfig = jsonFromFile(m_systemDubPath ~ "settings.json", true);
 	}
 
-	/// Perform cleanup and persist caches to disk
-	void shutdown()
-	{
-		auto cacheDir = m_userDubPath ~ "cache/";
-		foreach (p; m_packageSuppliers)
-			p.cacheOp(cacheDir, CacheOp.store);
-	}
-
-	/// cleans all metadata caches
-	void cleanCaches()
-	{
-		auto cacheDir = m_userDubPath ~ "cache/";
-		foreach (p; m_packageSuppliers)
-			p.cacheOp(cacheDir, CacheOp.clean);
-	}
-
 	@property void dryRun(bool v) { m_dryRun = v; }
 
 	/** Returns the root path (usually the current working directory).
@@ -796,7 +776,7 @@ class Dub {
 			logInfo("Package format is already %s.", destination_file_ext);
 			return;
 		}
-		
+
 		writePackageRecipe(srcfile[0 .. $-1] ~ ("dub."~destination_file_ext), m_project.rootPackage.info);
 		removeFile(srcfile);
 	}
diff --git a/source/dub/packagesupplier.d b/source/dub/packagesupplier.d
index 9d952724a..30a2ceec7 100644
--- a/source/dub/packagesupplier.d
+++ b/source/dub/packagesupplier.d
@@ -39,20 +39,10 @@ interface PackageSupplier {
 	/// returns the metadata for the package
 	Json getPackageDescription(string packageId, Dependency dep, bool pre_release);
 
-	/// perform cache operation
-	void cacheOp(Path cacheDir, CacheOp op);
-
 	static struct SearchResult { string name, description, version_; }
 	SearchResult[] searchPackages(string query);
 }
 
-/// operations on package supplier cache
-enum CacheOp {
-	load,
-	store,
-	clean,
-}
-
 class FileSystemPackageSupplier : PackageSupplier {
 	private {
 		Path m_path;
@@ -92,9 +82,6 @@ class FileSystemPackageSupplier : PackageSupplier {
 		return jsonFromZip(filename, "dub.json");
 	}
 
-	void cacheOp(Path cacheDir, CacheOp op) {
-	}
-
 	SearchResult[] searchPackages(string query) {
 		return null;
 	}
@@ -122,10 +109,9 @@ class RegistryPackageSupplier : PackageSupplier {
 		struct CacheEntry { Json data; SysTime cacheTime; }
 		CacheEntry[string] m_metadataCache;
 		Duration m_maxCacheTime;
-		bool m_metadataCacheDirty;
 	}
 
-	this(URL registry)
+ 	this(URL registry)
 	{
 		m_registryUrl = registry;
 		m_maxCacheTime = 24.hours();
@@ -160,44 +146,6 @@ class RegistryPackageSupplier : PackageSupplier {
 		return getBestPackage(packageId, dep, pre_release);
 	}
 
-	void cacheOp(Path cacheDir, CacheOp op)
-	{
-		auto path = cacheDir ~ cacheFileName;
-		final switch (op)
-		{
-		case CacheOp.store:
-			if (!m_metadataCacheDirty) return;
-			if (!cacheDir.existsFile())
-				mkdirRecurse(cacheDir.toNativeString());
-			// TODO: method is slow due to Json escaping
-			atomicWriteJsonFile(path, m_metadataCache.serializeToJson());
-			break;
-
-		case CacheOp.load:
-			if (!path.existsFile()) return;
-			try deserializeJson(m_metadataCache, jsonFromFile(path));
-			catch (Exception e) {
-				import std.encoding;
-				logWarn("Error loading package cache file %s: %s", path.toNativeString(), e.msg);
-				logDebug("Full error: %s", e.toString().sanitize());
-			}
-			break;
-
-		case CacheOp.clean:
-			if (path.existsFile()) removeFile(path);
-			m_metadataCache.destroy();
-			break;
-		}
-		m_metadataCacheDirty = false;
-	}
-
-	private @property string cacheFileName()
-	{
-		import std.digest.md;
-		auto hash = m_registryUrl.toString.md5Of();
-		return m_registryUrl.host ~ hash[0 .. $/2].toHexString().idup ~ ".json";
-	}
-
 	private Json getMetadata(string packageId)
 	{
 		auto now = Clock.currTime(UTC());
@@ -205,7 +153,6 @@ class RegistryPackageSupplier : PackageSupplier {
 			if (pentry.cacheTime + m_maxCacheTime > now)
 				return pentry.data;
 			m_metadataCache.remove(packageId);
-			m_metadataCacheDirty = true;
 		}
 
 		auto url = m_registryUrl ~ Path(PackagesPath ~ "/" ~ packageId ~ ".json");
@@ -219,7 +166,6 @@ class RegistryPackageSupplier : PackageSupplier {
 		foreach (ref v; json["versions"])
 			v.remove("readme");
 		m_metadataCache[packageId] = CacheEntry(json, now);
-		m_metadataCacheDirty = true;
 		return json;
 	}