Do stuff

build.gradle

@@ -77,3 +77,41 @@ tasks.register("generateVersion", Copy) {
 }
 
 sourceSets.main.java.srcDir generateVersion.outputs.files
+
+tasks.register("depsize") {
+    description = 'Prints dependencies for "default" configuration'
+    doLast() {
+        listConfigurationDependencies(configurations.default)
+    }
+}
+
+tasks.register("depsize-all-configurations") {
+    description = 'Prints dependencies for all available configurations'
+    doLast() {
+        configurations
+                .findAll { it.isCanBeResolved() }
+                .each { listConfigurationDependencies(it) }
+    }
+}
+
+def listConfigurationDependencies(Configuration configuration) {
+    def formatStr = "%,10.2f"
+
+    def size = configuration.collect { it.length() / (1024 * 1024) }.sum()
+
+    def out = new StringBuffer()
+    out << "\nConfiguration name: \"${configuration.name}\"\n"
+    if (size) {
+        out << 'Total dependencies size:'.padRight(65)
+        out << "${String.format(formatStr, size)} Mb\n\n"
+
+        configuration.sort { -it.length() }
+                .each {
+                    out << "${it.name}".padRight(65)
+                    out << "${String.format(formatStr, (it.length() / 1024))} kb\n"
+                }
+    } else {
+        out << 'No dependencies found';
+    }
+    println(out)
+}

src/main/kotlin/mdnet/base/MangaDexClient.kt

@@ -116,7 +116,11 @@ class MangaDexClient(private val clientSettingsFile: String) {
                 clientSettings.maxCacheSizeInMebibytes * 1024 * 1024 /* MiB to bytes */
             )
             cache.get("statistics")?.use {
-                statistics.set(JACKSON.readValue<Statistics>(it.getInputStream(0)))
+                try {
+                    statistics.set(JACKSON.readValue<Statistics>(it.getInputStream(0)))
+                } catch (_: JsonProcessingException) {
+                    cache.remove("statistics")
+                }
             }
         } catch (e: HeaderMismatchException) {
             LOGGER.warn { "Cache version may be outdated - remove if necessary" }
@@ -479,7 +483,7 @@ class MangaDexClient(private val clientSettingsFile: String) {
     }
 
     private fun isSecretValid(clientSecret: String): Boolean {
-        return Pattern.matches("^[a-zA-Z0-9]{$CLIENT_KEY_LENGTH}$", clientSecret)
+        return Pattern.matches("^[a-zA-Z0-9]*$CLIENT_KEY_LENGTH}$", clientSecret)
     }
 
     companion object {