Add build constant auto-fill

backend/mirai-console/build.gradle.kts

@@ -1,4 +1,6 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import upload.Bintray
+import java.text.SimpleDateFormat
 import java.util.*
 
 plugins {
@@ -74,6 +76,33 @@ tasks {
     "test"(Test::class) {
         useJUnitPlatform()
     }
+
+    val compileKotlin by getting {}
+
+    val fillBuildConstants by registering {
+        doLast {
+            (compileKotlin as KotlinCompile).source.filter { it.name == "MiraiConsole.kt" }.single().let { file ->
+                file.writeText(file.readText()
+                    .replace(Regex("""val buildDate: Date = Date\((.*)\) //(.*)""")) {
+                        """
+                        val buildDate: Date = Date(${System.currentTimeMillis()}) // ${SimpleDateFormat("yyyy-MM-dd HH:mm:ss").apply {
+                            timeZone = TimeZone.getTimeZone("GMT+8")
+                        }.format(Date())}
+                    """.trimIndent()
+                    }
+                    .replace(Regex("""const val version: String = "(.*)"""")) {
+                        """
+                        const val version: String = "${Versions.console}"
+                    """.trimIndent()
+                    }
+                )
+            }
+        }
+    }
+
+    "compileKotlin" {
+        dependsOn(fillBuildConstants)
+    }
 }
 
 // region PUBLISHING

backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/MiraiConsole.kt

@@ -13,6 +13,8 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.io.charsets.Charset
 import net.mamoe.mirai.Bot
+import net.mamoe.mirai.console.center.CuiPluginCenter
+import net.mamoe.mirai.console.center.PluginCenter
 import net.mamoe.mirai.console.plugin.PluginLoader
 import net.mamoe.mirai.console.plugin.jvm.JarPluginLoader
 import net.mamoe.mirai.utils.DefaultLogger
@@ -21,6 +23,7 @@ import net.mamoe.mirai.utils.MiraiLogger
 import java.io.ByteArrayOutputStream
 import java.io.File
 import java.io.PrintStream
+import java.util.*
 import kotlin.coroutines.CoroutineContext
 
 internal object MiraiConsoleInitializer {
@@ -33,26 +36,34 @@ internal object MiraiConsoleInitializer {
 
 }
 
+internal object MiraiConsoleBuildConstants { // auto-filled on build (task :mirai-console:fillBuildConstants)
+    @JvmStatic
+    val buildDate: Date = Date(1592720608995) // 2020-06-21 14:23:28
+    const val version: String = "0.5.1"
+}
+
 /**
  * mirai 控制台实例.
  */
 object MiraiConsole : CoroutineScope, IMiraiConsole {
+    val pluginCenter: PluginCenter get() = CuiPluginCenter
+
     private val instance: IMiraiConsole
         get() = MiraiConsoleInitializer.instance
 
     /**
      * `mirai-console` build 号
+     *
+     * UTC+8 时间
      */
-    @MiraiExperimentalAPI
+    @JvmStatic
-    override val build: String
+    val buildDate: Date
-        get() = instance.build
+        get() = MiraiConsoleBuildConstants.buildDate
 
     /**
      * `mirai-console` 版本
      */
-    @MiraiExperimentalAPI
+    const val version: String = MiraiConsoleBuildConstants.version
-    override val version: String
-        get() = instance.version
 
     /**
      * Console 运行路径
@@ -89,9 +100,6 @@ object MiraiConsole : CoroutineScope, IMiraiConsole {
 
 // 前端使用
 internal interface IMiraiConsole : CoroutineScope {
-    val build: String
-    val version: String
-
     /**
      * Console 运行路径
      */

backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/MiraiConsoleFrontEnd.kt

@@ -10,8 +10,6 @@
 package net.mamoe.mirai.console
 
 import net.mamoe.mirai.Bot
-import net.mamoe.mirai.console.center.CuiPluginCenter
-import net.mamoe.mirai.console.center.PluginCenter
 import net.mamoe.mirai.utils.LoginSolver
 import net.mamoe.mirai.utils.MiraiInternalAPI
 import net.mamoe.mirai.utils.MiraiLogger
@@ -22,11 +20,6 @@ import net.mamoe.mirai.utils.MiraiLogger
  */
 @MiraiInternalAPI
 interface MiraiConsoleFrontEnd {
-    /**
-     * 提供 [PluginCenter]
-     */
-    val pluginCenter: PluginCenter get() = CuiPluginCenter
-
     fun loggerFor(identity: String?): MiraiLogger
 
     /**
@@ -43,12 +36,6 @@ interface MiraiConsoleFrontEnd {
         bot: Bot
     )
 
-    fun pushVersion(
-        consoleVersion: String,
-        consoleBuild: String,
-        coreVersion: String
-    )
-
     /**
      * 让 UI 层提供一个输入, 相当于 [readLine]
      */

frontend/mirai-console-pure/src/main/kotlin/net/mamoe/mirai/console/pure/MiraiConsoleFrontEndPure.kt

@@ -60,9 +60,6 @@ object MiraiConsoleFrontEndPure : MiraiConsoleFrontEnd {
     override fun pushBot(bot: Bot) {
     }
 
-    override fun pushVersion(consoleVersion: String, consoleBuild: String, coreVersion: String) {
-    }
-
     override suspend fun requestInput(hint: String): String {
         if (hint.isNotEmpty()) {
             ConsoleUtils.lineReader.printAbove(

frontend/mirai-console-pure/src/main/kotlin/net/mamoe/mirai/console/pure/MiraiConsolePure.kt

@@ -35,15 +35,12 @@ import kotlin.coroutines.EmptyCoroutineContext
 private val delegateScope = CoroutineScope(EmptyCoroutineContext)
 
 object MiraiConsolePure : IMiraiConsole {
-    override val build: String = "UNKNOWN"
     override val builtInPluginLoaders: List<PluginLoader<*, *>> = LinkedList()
     override val frontEnd: MiraiConsoleFrontEnd = MiraiConsoleFrontEndPure
     override val mainLogger: MiraiLogger = DefaultLogger("Console")
     override val rootDir: File = File("./test/console").also {
         it.mkdirs()
     }
-    override val version: String
-        get() = "UNKNOWN"
     override val coroutineContext: CoroutineContext
         get() = delegateScope.coroutineContext
 }