release: 发布 0.3.0 版本.

增加 Maven 仓库配置, 支持限定仓库可获取的构件发布类型(发布或快照).
此改动有利于用户增加仓库约束, 防止意外使用错误的扩展包版本.

build.gradle.kts

@@ -7,5 +7,5 @@ allprojects {
 
     }
     group = "net.lamgc"
-    version = "0.2.1"
+    version = "0.3.0"
 }

scalabot-app/build.gradle.kts

@@ -35,6 +35,7 @@ dependencies {
     implementation("io.prometheus:simpleclient_httpserver:0.15.0")
 
     testImplementation(kotlin("test"))
+    testImplementation("io.mockk:mockk:1.12.3")
 }
 
 tasks.test {

scalabot-app/src/main/java/net/lamgc/scalabot/util/ByteUtils.java

@@ -1,17 +0,0 @@
-package net.lamgc.scalabot.util;
-
-final class ByteUtils {
-
-    private ByteUtils() {
-    }
-
-    public static String bytesToHexString(byte[] bytes) {
-        StringBuilder builder = new StringBuilder();
-        for (byte aByte : bytes) {
-            String hexBit = Integer.toHexString(aByte & 0xFF);
-            builder.append(hexBit.length() == 1 ? "0" + hexBit : hexBit);
-        }
-        return builder.toString();
-    }
-
-}

scalabot-app/src/main/kotlin/AppConfigs.kt

@@ -13,12 +13,15 @@ import org.eclipse.aether.artifact.Artifact
 import org.eclipse.aether.repository.Authentication
 import org.eclipse.aether.repository.Proxy
 import org.eclipse.aether.repository.RemoteRepository
+import org.eclipse.aether.repository.RepositoryPolicy
 import org.telegram.telegrambots.bots.DefaultBotOptions
 import org.telegram.telegrambots.meta.ApiConstants
 import java.io.File
 import java.net.URL
 import java.nio.charset.StandardCharsets
 import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicInteger
+import kotlin.system.exitProcess
 
 private val log = KotlinLogging.logger { }
 
@@ -99,20 +102,40 @@ internal data class MetricsConfig(
  * @property layout 仓库布局版本, Maven 2 及以上使用 `default`, Maven 1 使用 `legacy`.
  */
 internal data class MavenRepositoryConfig(
+    val id: String? = null,
     val url: URL,
     val proxy: Proxy? = Proxy("http", "127.0.0.1", 1080),
     val layout: String = "default",
+    val enableReleases: Boolean = true,
+    val enableSnapshots: Boolean = true,
     // 可能要设计个 type 来判断解析成什么类型的 Authentication.
     val authentication: Authentication? = null
 ) {
 
-    fun toRemoteRepository(): RemoteRepository {
-        val builder = RemoteRepository.Builder(null, checkRepositoryLayout(layout), url.toString())
+    fun toRemoteRepository(proxyConfig: ProxyConfig): RemoteRepository {
+        val builder =
+            RemoteRepository.Builder(id ?: createDefaultRepositoryId(), checkRepositoryLayout(layout), url.toString())
         if (proxy != null) {
             builder.setProxy(proxy)
-        } else if (Const.config.proxy.type == DefaultBotOptions.ProxyType.HTTP) {
-            builder.setProxy(Const.config.proxy.toAetherProxy())
+        } else if (proxyConfig.type == DefaultBotOptions.ProxyType.HTTP) {
+            builder.setProxy(proxyConfig.toAetherProxy())
         }
+
+        builder.setReleasePolicy(
+            RepositoryPolicy(
+                enableReleases,
+                RepositoryPolicy.UPDATE_POLICY_NEVER,
+                RepositoryPolicy.CHECKSUM_POLICY_FAIL
+            )
+        )
+        builder.setSnapshotPolicy(
+            RepositoryPolicy(
+                enableSnapshots,
+                RepositoryPolicy.UPDATE_POLICY_ALWAYS,
+                RepositoryPolicy.CHECKSUM_POLICY_WARN
+            )
+        )
+
         return builder.build()
     }
 
@@ -124,6 +147,13 @@ internal data class MavenRepositoryConfig(
             }
             return type
         }
+
+        private val repoNumber = AtomicInteger(1)
+
+        fun createDefaultRepositoryId(): String {
+            return "Repository-${repoNumber.getAndIncrement()}"
+        }
+
     }
 }
 
@@ -179,7 +209,8 @@ internal enum class AppPaths(
                     AppConfig(
                         mavenRepositories = listOf(
                             MavenRepositoryConfig(
-                                URL(MavenRepositoryExtensionFinder.MAVEN_CENTRAL_URL)
+                                id = "central",
+                                url = URL(MavenRepositoryExtensionFinder.MAVEN_CENTRAL_URL)
                             )
                         )
                     ), it
@@ -268,9 +299,17 @@ private fun AppPaths.defaultInitializer() {
 }
 
 internal fun initialFiles() {
+    val configFilesNotInitialized = !AppPaths.DEFAULT_CONFIG_APPLICATION.file.exists()
+            && !AppPaths.DEFAULT_CONFIG_BOT.file.exists()
+
     for (path in AppPaths.values()) {
         path.initial()
     }
+
+    if (configFilesNotInitialized) {
+        log.warn { "配置文件已初始化, 请根据需要修改配置文件后重新启动本程序." }
+        exitProcess(1)
+    }
 }
 
 private object GsonConst {

scalabot-app/src/main/kotlin/AppMain.kt

@@ -9,6 +9,14 @@ import org.telegram.telegrambots.bots.DefaultBotOptions
 import org.telegram.telegrambots.meta.TelegramBotsApi
 import org.telegram.telegrambots.meta.generics.BotSession
 import org.telegram.telegrambots.updatesreceivers.DefaultBotSession
+import java.io.File
+import java.io.IOException
+import java.nio.file.attribute.PosixFilePermission
+import java.nio.file.attribute.PosixFilePermissions
+import kotlin.io.path.createDirectories
+import kotlin.io.path.exists
+import kotlin.io.path.isReadable
+import kotlin.io.path.isWritable
 import kotlin.system.exitProcess
 
 private val log = KotlinLogging.logger { }
@@ -21,9 +29,7 @@ fun main(args: Array<String>): Unit = runBlocking {
 
     val launcher = Launcher()
         .registerShutdownHook()
-    if (Const.config.metrics.enable) {
-        startMetricsServer()
-    }
+    startMetricsServer()
     if (!launcher.launch()) {
         exitProcess(1)
     }
@@ -33,11 +39,16 @@ fun main(args: Array<String>): Unit = runBlocking {
  * 启动运行指标服务器.
  * 使用 Prometheus 指标格式.
  */
-fun startMetricsServer() {
+internal fun startMetricsServer(config: MetricsConfig = Const.config.metrics) {
+    if (!config.enable) {
+        log.debug { "运行指标服务器已禁用." }
+        return
+    }
+
     val builder = HTTPServer.Builder()
         .withDaemonThreads(true)
-        .withPort(Const.config.metrics.port)
-        .withHostname(Const.config.metrics.bindAddress)
+        .withPort(config.port)
+        .withHostname(config.bindAddress)
 
     val httpServer = builder
         .build()
@@ -45,7 +56,7 @@ fun startMetricsServer() {
     log.info { "运行指标服务器已启动. (Port: ${httpServer.port})" }
 }
 
-internal class Launcher : AutoCloseable {
+internal class Launcher(private val config: AppConfig = Const.config) : AutoCloseable {
 
     companion object {
         @JvmStatic
@@ -54,16 +65,46 @@ internal class Launcher : AutoCloseable {
 
     private val botApi = TelegramBotsApi(DefaultBotSession::class.java)
     private val botSessionMap = mutableMapOf<ScalaBot, BotSession>()
-    private val mavenLocalRepository =
-        if (Const.config.mavenLocalRepository != null && Const.config.mavenLocalRepository.isNotEmpty()) {
-            val repoPath = AppPaths.DATA_ROOT.file.toPath()
-                .resolve(Const.config.mavenLocalRepository)
-                .toRealPath()
-                .toFile()
-            LocalRepository(repoPath)
-        } else {
-            LocalRepository("${System.getProperty("user.home")}/.m2/repository")
+    private val mavenLocalRepository = getMavenLocalRepository()
+
+    private fun getMavenLocalRepository(): LocalRepository {
+        val localPath =
+            if (config.mavenLocalRepository != null && config.mavenLocalRepository.isNotEmpty()) {
+                val repoPath = AppPaths.DATA_ROOT.file.toPath()
+                    .resolve(config.mavenLocalRepository)
+                    .apply {
+                        if (!exists()) {
+                            if (!parent.isWritable() || !parent.isReadable()) {
+                                throw IOException("Unable to read and write the directory where Maven repository is located.")
+                            }
+                            if (System.getProperty("os.name").lowercase().startsWith("windows")) {
+                                createDirectories()
+                            } else {
+                                createDirectories(
+                                    PosixFilePermissions.asFileAttribute(
+                                        setOf(
+                                            PosixFilePermission.OWNER_READ,
+                                            PosixFilePermission.OWNER_WRITE,
+                                            PosixFilePermission.GROUP_READ,
+                                            PosixFilePermission.GROUP_WRITE,
+                                            PosixFilePermission.OTHERS_READ,
+                                        )
+                                    )
+                                )
+                            }
+                        }
+                    }
+                    .toRealPath()
+                    .toFile()
+                repoPath
+            } else {
+                File("${System.getProperty("user.home")}/.m2/repository")
+            }
+        if (!localPath.exists()) {
+            localPath.mkdirs()
         }
+        return LocalRepository(localPath)
+    }
 
     @Synchronized
     fun launch(): Boolean {
@@ -71,6 +112,9 @@ internal class Launcher : AutoCloseable {
         if (botConfigs.isEmpty()) {
             log.warn { "尚未配置任何机器人, 请先配置机器人后再启动本程序." }
             return false
+        } else if (botConfigs.none { it.enabled }) {
+            log.warn { "配置文件中没有已启用的机器人, 请至少启用一个机器人." }
+            return false
         }
         for (botConfig in botConfigs) {
             try {
@@ -92,15 +136,15 @@ internal class Launcher : AutoCloseable {
             val proxyConfig =
                 if (botConfig.proxy != null && botConfig.proxy.type != DefaultBotOptions.ProxyType.NO_PROXY) {
                     botConfig.proxy
-                } else if (Const.config.proxy.type != DefaultBotOptions.ProxyType.NO_PROXY) {
-                    Const.config.proxy
+                } else if (config.proxy.type != DefaultBotOptions.ProxyType.NO_PROXY) {
+                    config.proxy
                 } else {
                     null
                 }
             if (proxyConfig != null) {
                 proxyType = proxyConfig.type
-                proxyHost = Const.config.proxy.host
-                proxyPort = Const.config.proxy.port
+                proxyHost = config.proxy.host
+                proxyPort = config.proxy.port
                 log.debug { "机器人 `${botConfig.account.name}` 已启用代理配置: $proxyConfig" }
             }
 
@@ -110,16 +154,21 @@ internal class Launcher : AutoCloseable {
         }
         val account = botConfig.account
 
-        val remoteRepositories = Const.config.mavenRepositories
-            .map(MavenRepositoryConfig::toRemoteRepository)
+        val remoteRepositories = config.mavenRepositories
+            .map { it.toRemoteRepository(config.proxy) }
             .toMutableList().apply {
-                add(MavenRepositoryExtensionFinder.getMavenCentralRepository(proxy = Const.config.proxy.toAetherProxy()))
+                if (this.none {
+                        it.url == MavenRepositoryExtensionFinder.MAVEN_CENTRAL_URL
+                                || it.url == MavenRepositoryExtensionFinder.MAVEN_CENTRAL_URL.trimEnd('/')
+                    }) {
+                    add(MavenRepositoryExtensionFinder.getMavenCentralRepository(proxy = config.proxy.toAetherProxy()))
+                }
             }.toList()
         val extensionPackageFinders = setOf(
             MavenRepositoryExtensionFinder(
                 localRepository = mavenLocalRepository,
                 remoteRepositories = remoteRepositories,
-                proxy = Const.config.proxy.toAetherProxy()
+                proxy = config.proxy.toAetherProxy()
             )
         )
 

scalabot-app/src/main/kotlin/BotDBMaker.kt

@@ -2,7 +2,7 @@ package net.lamgc.scalabot
 
 import com.google.common.io.Files
 import mu.KotlinLogging
-import net.lamgc.scalabot.util.toHaxString
+import net.lamgc.scalabot.util.toHexString
 import org.mapdb.DB
 import org.mapdb.DBException
 import org.mapdb.DBMaker
@@ -186,5 +186,5 @@ private object BotAccountIdDbAdapter : FileDbAdapter("BotAccountId", { botAccoun
 private object BotTokenDbAdapter : FileDbAdapter("BotToken_v0.1.0", { botAccount ->
     val digest: MessageDigest = MessageDigest.getInstance("SHA-256")
     val digestBytes = digest.digest(botAccount.token.toByteArray(StandardCharsets.UTF_8))
-    File(AppPaths.DATA_DB.file, "${digestBytes.toHaxString()}.db")
+    File(AppPaths.DATA_DB.file, "${digestBytes.toHexString()}.db")
 })

scalabot-app/src/main/kotlin/ExtensionComponents.kt

@@ -132,7 +132,7 @@ internal class ExtensionLoader(
                     result[finder] = artifacts
                 }
             } catch (e: Exception) {
-                log.error { "搜索器 ${finder::class.java.name} 在搜索扩展 `$extensionArtifact` 时发生错误:" }
+                log.error(e) { "搜索器 ${finder::class.java.name} 在搜索扩展 `$extensionArtifact` 时发生错误." }
             }
         }
         return result

scalabot-app/src/main/kotlin/ExtensionFinders.kt

@@ -257,9 +257,21 @@ internal class MavenRepositoryExtensionFinder(
     }
 
     override fun findByArtifact(extensionArtifact: Artifact, extensionsPath: File): Set<FoundExtensionPackage> {
+        log.debug {
+            StringBuilder().apply {
+                append("构件 $extensionArtifact 将在以下仓库拉取: \n")
+                remoteRepositories.forEach {
+                    append("\t- ${it}\n")
+                }
+            }
+        }
         val extensionArtifactResult = repositorySystem.resolveArtifact(
             repoSystemSession,
-            ArtifactRequest(extensionArtifact, remoteRepositories, null)
+            ArtifactRequest(
+                extensionArtifact,
+                repositorySystem.newResolutionRepositories(repoSystemSession, remoteRepositories),
+                null
+            )
         )
         val extResolvedArtifact = extensionArtifactResult.artifact
         if (!extensionArtifactResult.isResolved) {

scalabot-app/src/main/kotlin/ScalaBot.kt

@@ -103,6 +103,12 @@ internal class ScalaBot(
             }
             BotCommand(it.name(), abilityInfo)
         }
+
+        if (botCommands.isEmpty()) {
+            log.info { "Bot 没有任何命令, 命令列表更新已跳过." }
+            return true
+        }
+
         val setMyCommands = SetMyCommands()
         setMyCommands.commands = botCommands
         return execute(DeleteMyCommands()) && execute(setMyCommands)
@@ -114,7 +120,6 @@ internal class ScalaBot(
     }
 
     override fun onClosing() {
-        super.onClosing()
         onlineBotGauge.dec()
     }
 
@@ -151,7 +156,7 @@ internal class ScalaBot(
         private val updateProcessTime = Summary.build()
             .name("update_process_duration_seconds")
             .help(
-                "Time to process update. (This indicator includes the pre-processing of update by TelegrammBots, " +
+                "Time to process update. (This indicator includes the pre-processing of update by TelegramBots, " +
                         "so it may be different from the actual execution time of ability. " +
                         "It is not recommended to use it as the accurate execution time of ability)"
             )

scalabot-app/src/main/kotlin/util/Serializers.kt

@@ -142,12 +142,15 @@ internal object MavenRepositoryConfigSerializer
         return when (json) {
             is JsonObject -> {
                 MavenRepositoryConfig(
+                    id = json.get("id")?.asString,
                     url = URL(checkJsonKey(json, "url")),
                     proxy = if (json.has("proxy") && json.get("proxy").isJsonObject)
                         context.deserialize<Proxy>(
                             json.getAsJsonObject("proxy"), Proxy::class.java
                         ) else null,
                     layout = json.get("layout").asString ?: "default",
+                    enableReleases = json.get("enableReleases")?.asBoolean ?: true,
+                    enableSnapshots = json.get("enableSnapshots")?.asBoolean ?: true,
                     authentication = if (json.has("authentication") && json.get("authentication").isJsonObject)
                         context.deserialize<Authentication>(
                             json.getAsJsonObject("authentication"), Authentication::class.java
@@ -155,7 +158,7 @@ internal object MavenRepositoryConfigSerializer
                 )
             }
             is JsonPrimitive -> {
-                MavenRepositoryConfig(URL(json.asString))
+                MavenRepositoryConfig(url = URL(json.asString))
             }
             else -> {
                 throw JsonParseException("Unsupported Maven warehouse configuration type.")

scalabot-app/src/main/kotlin/util/Utils.kt

@@ -7,9 +7,8 @@ import org.eclipse.aether.artifact.Artifact
 import java.io.File
 import java.io.FileFilter
 import java.io.FilenameFilter
-import java.net.URL
 
-internal fun ByteArray.toHaxString(): String = ByteUtils.bytesToHexString(this)
+internal fun ByteArray.toHexString(): String = joinToString("") { it.toString(16) }
 
 internal fun Artifact.equalsArtifact(that: Artifact): Boolean =
     this.groupId.equals(that.groupId) &&
@@ -56,9 +55,14 @@ internal fun File.deepListFiles(
  * @return 获取 Finder 的优先级.
  * @throws NoSuchFieldException 如果 Finder 没有添加 [FinderRules] 注解时抛出该异常.
  */
-internal fun ExtensionPackageFinder.getPriority() =
-    this::class.java.getDeclaredAnnotation(FinderRules::class.java)?.priority
+internal fun ExtensionPackageFinder.getPriority(): Int {
+    val value = this::class.java.getDeclaredAnnotation(FinderRules::class.java)?.priority
         ?: throw NoSuchFieldException("Finder did not add `FinderRules` annotation")
+    if (value < 0) {
+        throw IllegalArgumentException("Priority cannot be lower than 0. (Class: ${this::class.java})")
+    }
+    return value
+}
 
 /**
  * 为 [AutoCloseable] 对象注册 Jvm Shutdown 钩子.
@@ -76,30 +80,19 @@ private object UtilsInternal {
     val autoCloseableSet = mutableSetOf<AutoCloseable>()
 
     init {
-        Runtime.getRuntime().addShutdownHook(Thread({
-            log.debug { "Closing registered hook resources..." }
-            autoCloseableSet.forEach {
-                try {
-                    it.close()
-                } catch (e: Exception) {
-                    log.error(e) { "An exception occurred while closing the resource. (Resource: `$it`)" }
-                }
+        Runtime.getRuntime().addShutdownHook(Thread(this::doCloseResources, "Shutdown-AutoCloseable"))
+    }
+
+    fun doCloseResources() {
+        log.debug { "Closing registered hook resources..." }
+        autoCloseableSet.removeIf {
+            try {
+                it.close()
+            } catch (e: Exception) {
+                log.error(e) { "An exception occurred while closing the resource. (Resource: `$it`)" }
             }
-            log.debug { "All registered hook resources have been closed." }
-        }, "Shutdown-AutoCloseable"))
-    }
-}
-
-fun URL.resolveToFile(canonical: Boolean = true): File {
-    if ("file" != protocol) {
-        throw ClassCastException("Only the URL of the `file` protocol can be converted into a File object.")
-    }
-
-    val urlString = toString().substringAfter(':')
-    val file = File(urlString)
-    return if (canonical) {
-        file.canonicalFile
-    } else {
-        file
+            true
+        }
+        log.debug { "All registered hook resources have been closed." }
     }
 }

scalabot-app/src/test/kotlin/AppConfigTest.kt

@@ -1,12 +1,19 @@
 package net.lamgc.scalabot
 
 import com.google.gson.Gson
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.verify
+import org.junit.jupiter.api.io.TempDir
+import java.io.File
 import java.util.*
 import kotlin.math.abs
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
 
-class BotAccountTest {
+internal class BotAccountTest {
 
     @Test
     fun deserializerTest() {
@@ -29,3 +36,87 @@ class BotAccountTest {
 
 }
 
+internal class AppPathsTest {
+
+    @Test
+    fun `Data root path priority`() {
+        System.setProperty("bot.path.data", "A")
+
+        assertEquals("A", AppPaths.DATA_ROOT.file.path, "`DATA_ROOT`没有优先返回 Property 的值.")
+        System.getProperties().remove("bot.path.data")
+        if (System.getenv("BOT_DATA_PATH") != null) {
+            assertEquals(
+                System.getenv("BOT_DATA_PATH"), AppPaths.DATA_ROOT.file.path,
+                "`DATA_ROOT`没有返回 env 的值."
+            )
+        } else {
+            assertEquals(
+                System.getProperty("user.dir"), AppPaths.DATA_ROOT.file.path,
+                "`DATA_ROOT`没有返回 `user.dir` 的值."
+            )
+            val userDir = System.getProperty("user.dir")
+            System.getProperties().remove("user.dir")
+            assertEquals(".", AppPaths.DATA_ROOT.file.path, "`DATA_ROOT`没有返回 `.`(当前目录).")
+            System.setProperty("user.dir", userDir)
+            assertNotNull(System.getProperty("user.dir"), "环境还原失败!")
+        }
+    }
+
+    @Test
+    fun `default initializer`(@TempDir testDir: File) {
+        val defaultInitializerMethod = Class.forName("net.lamgc.scalabot.AppConfigsKt")
+            .getDeclaredMethod("defaultInitializer", AppPaths::class.java)
+            .apply { isAccessible = true }
+
+        val dirPath = "${testDir.canonicalPath}/directory/"
+        val dirFile = File(dirPath)
+        mockk<AppPaths> {
+            every { file }.returns(File(dirPath))
+            every { path }.returns(dirPath)
+            every { initial() }.answers {
+                defaultInitializerMethod.invoke(null, this@mockk)
+            }
+        }.initial()
+        assertTrue(dirFile.exists() && dirFile.isDirectory, "默认初始器未正常初始化【文件夹】.")
+
+        File(testDir, "test.txt").apply {
+            mockk<AppPaths> {
+                every { file }.returns(this@apply)
+                every { path }.returns(this@apply.canonicalPath)
+                every { initial() }.answers {
+                    defaultInitializerMethod.invoke(null, this@mockk)
+                }
+            }.initial()
+            assertTrue(this@apply.exists() && this@apply.isFile, "默认初始器未正常初始化【文件】.")
+        }
+
+        val alreadyExistsFile = File("${testDir.canonicalPath}/alreadyExists.txt").apply {
+            if (!exists()) {
+                createNewFile()
+            }
+        }
+        assertTrue(alreadyExistsFile.exists(), "文件状态与预期不符.")
+        mockk<File> {
+            every { exists() }.returns(true)
+            every { canonicalPath }.answers { alreadyExistsFile.canonicalPath }
+            every { createNewFile() }.answers { alreadyExistsFile.createNewFile() }
+            every { mkdirs() }.answers { alreadyExistsFile.mkdirs() }
+            every { mkdir() }.answers { alreadyExistsFile.mkdir() }
+        }.apply {
+            mockk<AppPaths> {
+                every { file }.returns(this@apply)
+                every { path }.returns(this@apply.canonicalPath)
+                every { initial() }.answers {
+                    defaultInitializerMethod.invoke(null, this@mockk)
+                }
+            }.initial()
+            verify(exactly = 0) { createNewFile() }
+            verify(exactly = 0) { mkdir() }
+            verify(exactly = 0) { mkdirs() }
+        }
+
+        defaultInitializerMethod.isAccessible = false
+    }
+
+}
+

scalabot-app/src/test/kotlin/util/UtilsKtTest.kt

@@ -1,9 +1,21 @@
 package net.lamgc.scalabot.util
 
+import io.mockk.every
+import io.mockk.justRun
+import io.mockk.mockk
+import io.mockk.verify
+import net.lamgc.scalabot.ExtensionPackageFinder
+import net.lamgc.scalabot.FinderPriority
+import net.lamgc.scalabot.FinderRules
+import net.lamgc.scalabot.FoundExtensionPackage
+import org.eclipse.aether.artifact.Artifact
 import org.eclipse.aether.artifact.DefaultArtifact
-import org.junit.jupiter.api.Assertions.assertFalse
-import org.junit.jupiter.api.Assertions.assertTrue
-import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertDoesNotThrow
+import org.junit.jupiter.api.assertThrows
+import java.io.File
+import java.lang.reflect.InvocationTargetException
+import java.nio.charset.StandardCharsets
+import kotlin.test.*
 
 internal class UtilsKtTest {
 
@@ -16,4 +28,92 @@ internal class UtilsKtTest {
                 .equalsArtifact(DefaultArtifact("com.example:demo-2:1.0.0-SNAPSHOT"))
         )
     }
+
+    @Test
+    fun `bytes to hex`() {
+        assertEquals("48656c6c6f20576f726c64", "Hello World".toByteArray(StandardCharsets.UTF_8).toHexString())
+    }
+
+    @Test
+    fun `ExtensionPackageFinder - getPriority`() {
+        open class BaseTestFinder : ExtensionPackageFinder {
+            override fun findByArtifact(extensionArtifact: Artifact, extensionsPath: File): Set<FoundExtensionPackage> {
+                throw IllegalStateException("Calling this class is not allowed.")
+            }
+        }
+
+        @FinderRules(FinderPriority.ALTERNATE)
+        class StandardTestFinder : BaseTestFinder()
+        assertEquals(
+            FinderPriority.ALTERNATE, StandardTestFinder().getPriority(),
+            "获取到的优先值与预期不符"
+        )
+
+        @FinderRules(-1)
+        class OutOfRangePriorityFinder : BaseTestFinder()
+        assertThrows<IllegalArgumentException>("getPriority 方法没有对超出范围的优先值抛出异常.") {
+            OutOfRangePriorityFinder().getPriority()
+        }
+
+        class NoAnnotationFinder : BaseTestFinder()
+        assertThrows<NoSuchFieldException> {
+            NoAnnotationFinder().getPriority()
+        }
+
+    }
+
+    @Test
+    fun `AutoCloseable shutdown hook`() {
+        val utilsInternalClass = Class.forName("net.lamgc.scalabot.util.UtilsInternal")
+        val utilsInternalObject = utilsInternalClass.getDeclaredField("INSTANCE").get(null)
+            ?: fail("无法获取 UtilsInternal 对象.")
+        val doCloseResourcesMethod = utilsInternalClass.getDeclaredMethod("doCloseResources")
+            .apply {
+                isAccessible = true
+            }
+
+        // 正常的运行过程.
+        val mockResource = mockk<AutoCloseable> {
+            justRun { close() }
+        }.registerShutdownHook()
+        doCloseResourcesMethod.invoke(utilsInternalObject)
+        verify { mockResource.close() }
+
+        // 异常捕获检查.
+        val exceptionMockResource = mockk<AutoCloseable> {
+            every { close() } throws RuntimeException("Expected exception.")
+        }.registerShutdownHook()
+        assertDoesNotThrow("在关闭资源时出现未捕获异常.") {
+            doCloseResourcesMethod.invoke(utilsInternalObject)
+        }
+        verify { exceptionMockResource.close() }
+
+        // 错误抛出检查.
+        val errorMockResource = mockk<AutoCloseable> {
+            every { close() } throws Error("Expected error.")
+        }.registerShutdownHook()
+        assertThrows<Error>("关闭资源时捕获了不该捕获的 Error.") {
+            try {
+                doCloseResourcesMethod.invoke(utilsInternalObject)
+            } catch (e: InvocationTargetException) {
+                throw e.targetException
+            }
+        }
+        verify { errorMockResource.close() }
+
+        @Suppress("UNCHECKED_CAST")
+        val resourceSet = utilsInternalClass.getDeclaredMethod("getAutoCloseableSet").invoke(utilsInternalObject)
+                as MutableSet<AutoCloseable>
+        resourceSet.clear()
+
+        val closeRef = mockk<AutoCloseable> {
+            justRun { close() }
+        }
+        resourceSet.add(closeRef)
+        assertTrue(resourceSet.contains(closeRef), "测试用资源虚引用添加失败.")
+        doCloseResourcesMethod.invoke(utilsInternalObject)
+        assertFalse(resourceSet.contains(closeRef), "资源虚引用未从列表中删除.")
+
+        resourceSet.clear()
+    }
 }

scalabot-extension/build.gradle.kts

@@ -4,6 +4,7 @@ plugins {
     kotlin("jvm") version "1.6.10"
     java
     `maven-publish`
+    signing
 }
 
 dependencies {
@@ -38,24 +39,21 @@ tasks.withType<KotlinCompile> {
 
 publishing {
     repositories {
-        val repoRootKey = "maven.repo.local.root"
-        val snapshot = project.version.toString().endsWith("-SNAPSHOT")
-        val repoRoot = System.getProperty(repoRootKey)?.trim()
-        if (repoRoot == null || repoRoot.isEmpty()) {
-            logger.warn(
-                "\"$repoRootKey\" configuration item is not specified, " +
-                        "please add start parameter \"-D$repoRootKey {localPublishRepo}\"" +
-                        " (if you are not currently executing the publish task, " +
-                        "you can ignore this information)"
-            )
-            return@repositories
-        }
-        val repoUri = if (snapshot) {
-            uri("$repoRoot/snapshots")
+        if (project.version.toString().endsWith("-SNAPSHOT")) {
+            maven("https://repo.lamgc.moe/repository/maven-snapshots/") {
+                credentials {
+                    username = project.properties["repo.credentials.private.username"].toString()
+                    password = project.properties["repo.credentials.private.password"].toString()
+                }
+            }
         } else {
-            uri("$repoRoot/releases")
+            maven("https://repo.lamgc.moe/repository/maven-releases/") {
+                credentials {
+                    username = project.properties["repo.credentials.private.username"].toString()
+                    password = project.properties["repo.credentials.private.password"].toString()
+                }
+            }
         }
-        maven(repoUri)
     }
 
     publications {
@@ -97,3 +95,8 @@ publishing {
     }
 
 }
+
+signing {
+    useGpgCmd()
+    sign(publishing.publications["maven"])
+}