Add init as an alias to new

main-command/src/main/scala/sbt/BasicCommandStrings.scala

@@ -17,6 +17,7 @@ object BasicCommandStrings {
   val Shutdown: String = "shutdown"
   val Quit: String = "quit"
   val TemplateCommand: String = "new"
+  val TemplateCommandAlias: String = "init"
   val Cancel: String = "cancel"
 
   /** The command name to terminate the program.*/

main/src/main/scala/sbt/Main.scala

@@ -71,7 +71,7 @@ private[sbt] object xMain {
         .filterNot(_ == DashDashServer)
       val isClient: String => Boolean = cmd => (cmd == JavaClient) || (cmd == DashDashClient)
       val isBsp: String => Boolean = cmd => (cmd == "-bsp") || (cmd == "--bsp")
-      val isNew: String => Boolean = cmd => (cmd == "new")
+      val isNew: String => Boolean = cmd => (cmd == "new") || (cmd == "init")
       lazy val isServer = !userCommands.exists(c => isBsp(c) || isClient(c))
       // keep this lazy to prevent project directory created prematurely
       lazy val bootServerSocket = if (isServer) getSocketOrExit(configuration) match {
@@ -108,7 +108,7 @@ private[sbt] object xMain {
               .initialState(
                 rebasedConfig,
                 Seq(defaults, early),
-                runEarly(DefaultsCommand) :: runEarly(InitCommand) :: BootCommand :: Nil
+                runEarly(DefaultsCommand) :: runEarly("error") :: runEarly(InitCommand) :: BootCommand :: Nil
               )
               .put(BasicKeys.detachStdio, detachStdio)
             StandardMain.runManaged(state)
@@ -289,7 +289,7 @@ object StandardMain {
 import sbt.BasicCommandStrings._
 import sbt.BasicCommands._
 import sbt.CommandUtil._
-import sbt.TemplateCommandUtil.templateCommand
+import sbt.TemplateCommandUtil.{ templateCommandAlias, templateCommand }
 import sbt.internal.CommandStrings._
 import sbt.internal.util.complete.DefaultParsers._
 
@@ -311,6 +311,7 @@ object BuiltinCommands {
       settingsCommand,
       loadProject,
       templateCommand,
+      templateCommandAlias,
       projects,
       project,
       set,

main/src/main/scala/sbt/TemplateCommandUtil.scala

@@ -11,7 +11,6 @@ import java.lang.reflect.InvocationTargetException
 import java.nio.file.Path
 import java.io.File
 
-import sbt.BasicCommandStrings.TerminateAction
 import sbt.SlashSyntax0._
 import sbt.io._, syntax._
 import sbt.util._
@@ -24,8 +23,10 @@ import sbt.internal.inc.classpath.ClasspathUtil
 import BasicCommandStrings._, BasicKeys._
 
 private[sbt] object TemplateCommandUtil {
-  def templateCommand: Command =
-    Command(TemplateCommand, templateBrief, templateDetailed)(_ => templateCommandParser)(
+  def templateCommand: Command = templateCommand0(TemplateCommand)
+  def templateCommandAlias: Command = templateCommand0("init")
+  private def templateCommand0(command: String): Command =
+    Command(command, templateBrief, templateDetailed)(_ => templateCommandParser)(
       runTemplate
     )
 

sbt-app/src/sbt-test/java/argfile/build.sbt

@@ -1,7 +1,7 @@
 scalaSource in Configurations.Compile := (sourceDirectory.value / " scala test ")
  javaSource in Configurations.Compile := (sourceDirectory.value / " java test ")
 
-TaskKey[Unit]("init") := {
+TaskKey[Unit]("init0") := {
   val ss = (scalaSource in Configurations.Compile).value
   val js = ( javaSource in Configurations.Compile).value
   import IO._

sbt-app/src/sbt-test/java/argfile/test

@@ -1,2 +1,2 @@
-> init
+> init0
 > run