Forwarder script is added to AshScriptPlugin

src/main/mima-filters/1.3.15.backward.excludes

@@ -82,3 +82,14 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sbt.packager.li
 
 ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.docker.DockerKeys.dockerBuildEnvVars")
 ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.docker.DockerKeys.com$typesafe$sbt$packager$docker$DockerKeys$_setter_$dockerBuildEnvVars_=")
+
+# added via #1557
+ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptKeys.com$typesafe$sbt$packager$archetypes$scripts$BashStartScriptKeys$_setter_$bashForwarderTemplateLocation_=")
+ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptKeys.bashForwarderTemplateLocation")
+ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptPlugin#BashScriptConfig.copy")
+ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptPlugin#BashScriptConfig.this")
+ProblemFilters.exclude[MissingTypesProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptPlugin$BashScriptConfig$")
+ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BashStartScriptPlugin#BashScriptConfig.apply")
+ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BatStartScriptKeys.com$typesafe$sbt$packager$archetypes$scripts$BatStartScriptKeys$_setter_$batForwarderTemplateLocation_=")
+ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.BatStartScriptKeys.batForwarderTemplateLocation")
+ProblemFilters.exclude[ReversedMissingMethodProblem]("com.typesafe.sbt.packager.archetypes.scripts.CommonStartScriptGenerator#ScriptConfig.forwarderTemplateLocation")

src/main/resources/com/typesafe/sbt/packager/archetypes/scripts/ash-forwarder-template

@@ -0,0 +1,61 @@
+#!/bin/sh
+
+# Absolute path to this script
+# macOS doesn't support "readlink -f"
+realpath () {
+  TARGET_FILE="$1"
+  CHECK_CYGWIN="$2"
+
+  cd "$(dirname "$TARGET_FILE")"
+  TARGET_FILE=$(basename "$TARGET_FILE")
+
+  COUNT=0
+  while [ -L "$TARGET_FILE" -a $COUNT -lt 100 ]
+  do
+      TARGET_FILE=$(readlink "$TARGET_FILE")
+      cd "$(dirname "$TARGET_FILE")"
+      TARGET_FILE=$(basename "$TARGET_FILE")
+      COUNT=$(($COUNT + 1))
+  done
+
+  if [ "$TARGET_FILE" == "." -o "$TARGET_FILE" == ".." ]; then
+    cd "$TARGET_FILE"
+    TARGET_FILEPATH=
+  else
+    TARGET_FILEPATH=/$TARGET_FILE
+  fi
+
+  # make sure we grab the actual windows path, instead of cygwin's path.
+  if [[ "x$CHECK_CYGWIN" == "x" ]]; then
+    echo "$(pwd -P)/$TARGET_FILE"
+  else
+    echo $(cygwinpath "$(pwd -P)/$TARGET_FILE")
+  fi
+}
+
+# Uses uname to detect if we're in the odd cygwin environment.
+is_cygwin() {
+  local os=$(uname -s)
+  case "$os" in
+    CYGWIN*) return 0 ;;
+    *)  return 1 ;;
+  esac
+}
+
+# This can fix cygwin style /cygdrive paths so we get the
+# windows style paths.
+cygwinpath() {
+  local file="$1"
+  if is_cygwin; then
+    echo $(cygpath -w $file)
+  else
+    echo $file
+  fi
+}
+
+# get the absolute path for the current script
+SCRIPT=$(realpath "$0")
+SCRIPTPATH=$(dirname "$SCRIPT")
+
+# execute the main start script
+$SCRIPTPATH/${{startScript}} -main ${{qualifiedClassName}} "$@"

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/AshScriptPlugin.scala

@@ -75,10 +75,12 @@ object AshScriptPlugin extends AutoPlugin {
   override def requires = JavaAppPackaging && BashStartScriptPlugin
 
   val ashTemplate = "ash-template"
+  val ashForwarderTemplate = "ash-forwarder-template"
 
   override def projectSettings =
     Seq(
       bashScriptTemplateLocation := (sourceDirectory.value / "templates" / ashTemplate),
+      bashForwarderTemplateLocation := Some(sourceDirectory.value / "templates" / ashForwarderTemplate),
       bashScriptDefines := Defines(
         (scriptClasspath in bashScriptDefines).value,
         bashScriptConfigLocation.value,

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/BashStartScriptKeys.scala

@@ -31,4 +31,7 @@ trait BashStartScriptKeys {
     "bashScriptConfigLocation",
     "The location where the bash script will load default argument configuration from."
   )
+
+  val bashForwarderTemplateLocation =
+    TaskKey[Option[File]]("bashForwarderTemplateLocation", "The location of the bash forwarder template")
 }

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/BashStartScriptPlugin.scala

@@ -45,7 +45,8 @@ object BashStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator wit
     override val executableScriptName: String,
     override val scriptClasspath: Seq[String],
     override val replacements: Seq[(String, String)],
-    override val templateLocation: File
+    override val templateLocation: File,
+    override val forwarderTemplateLocation: Option[File]
   ) extends ScriptConfig {
     override def withScriptName(scriptName: String): BashScriptConfig = copy(executableScriptName = scriptName)
   }
@@ -55,6 +56,7 @@ object BashStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator wit
   override def projectSettings: Seq[Setting[_]] =
     Seq(
       bashScriptTemplateLocation := (sourceDirectory.value / "templates" / bashTemplate),
+      bashForwarderTemplateLocation := Some(sourceDirectory.value / "templates" / forwarderTemplateName),
       bashScriptExtraDefines := Nil,
       bashScriptDefines := Defines(
         (scriptClasspath in bashScriptDefines).value,
@@ -79,7 +81,8 @@ object BashStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator wit
           executableScriptName = executableScriptName.value,
           scriptClasspath = (scriptClasspath in bashScriptDefines).value,
           replacements = bashScriptReplacements.value,
-          templateLocation = bashScriptTemplateLocation.value
+          templateLocation = bashScriptTemplateLocation.value,
+          forwarderTemplateLocation = bashForwarderTemplateLocation.value
         ),
         (mainClass in (Compile, bashScriptDefines)).value,
         (discoveredMainClasses in Compile).value,

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/BatStartScriptKeys.scala

@@ -12,6 +12,10 @@ trait BatStartScriptKeys {
   val makeBatScripts = TaskKey[Seq[(File, String)]]("makeBatScripts", "Creates start scripts for this project.")
   val batScriptTemplateLocation =
     TaskKey[File]("batScriptTemplateLocation", "The location of the bat script template.")
+
+  val batForwarderTemplateLocation =
+    TaskKey[Option[File]]("batForwarderTemplateLocation", "The location of the bat forwarder script template.")
+
   val batScriptReplacements = TaskKey[Seq[(String, String)]](
     "batScriptReplacements",
     """|Replacements of template parameters used in the windows bat script.

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/BatStartScriptPlugin.scala

@@ -50,7 +50,8 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
     extraDefines: Seq[String],
     override val replacements: Seq[(String, String)],
     override val templateLocation: File,
-    bundledJvmLocation: Option[String]
+    bundledJvmLocation: Option[String],
+    override val forwarderTemplateLocation: Option[File]
   ) extends ScriptConfig {
 
     @deprecated("1.3.21", "")
@@ -62,7 +63,16 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
       replacements: Seq[(String, String)],
       templateLocation: File
     ) =
-      this(executableScriptName, scriptClasspath, configLocation, extraDefines, replacements, templateLocation, None)
+      this(
+        executableScriptName,
+        scriptClasspath,
+        configLocation,
+        extraDefines,
+        replacements,
+        templateLocation,
+        None,
+        None
+      )
 
     @deprecated("1.3.21", "")
     def copy(
@@ -80,7 +90,8 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
         extraDefines,
         replacements,
         templateLocation,
-        bundledJvmLocation
+        bundledJvmLocation,
+        forwarderTemplateLocation
       )
 
     override def withScriptName(scriptName: String): BatScriptConfig = copy(executableScriptName = scriptName)
@@ -107,6 +118,7 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
         extraDefines,
         replacements,
         templateLocation,
+        None,
         None
       )
 
@@ -117,6 +129,7 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
   override def projectSettings: Seq[Setting[_]] =
     Seq(
       batScriptTemplateLocation := (sourceDirectory.value / "templates" / batTemplate),
+      batForwarderTemplateLocation := Some(sourceDirectory.value / "templates" / forwarderTemplateName),
       batScriptConfigLocation := (batScriptConfigLocation ?? Some(appIniLocation)).value,
       batScriptExtraDefines := Nil,
       batScriptReplacements := Replacements(executableScriptName.value),
@@ -136,7 +149,8 @@ object BatStartScriptPlugin extends AutoPlugin with ApplicationIniGenerator with
           extraDefines = batScriptExtraDefines.value,
           replacements = batScriptReplacements.value,
           templateLocation = batScriptTemplateLocation.value,
-          bundledJvmLocation = bundledJvmLocation.value
+          bundledJvmLocation = bundledJvmLocation.value,
+          forwarderTemplateLocation = batForwarderTemplateLocation.value
         ),
         (mainClass in (Compile, batScriptReplacements)).value,
         (discoveredMainClasses in Compile).value,

src/main/scala/com/typesafe/sbt/packager/archetypes/scripts/CommonStartScriptGenerator.scala

@@ -51,6 +51,7 @@ trait CommonStartScriptGenerator {
     val scriptClasspath: Seq[String]
     val replacements: Seq[(String, String)]
     val templateLocation: File
+    val forwarderTemplateLocation: Option[File]
 
     def withScriptName(scriptName: String): SpecializedScriptConfig
   }
@@ -135,9 +136,9 @@ trait CommonStartScriptGenerator {
     script -> s"$scriptTargetFolder/$scriptNameWithSuffix"
   }
 
-  private[this] def resolveTemplate(defaultTemplateLocation: File): URL =
-    if (defaultTemplateLocation.exists) defaultTemplateLocation.toURI.toURL
-    else getClass.getResource(defaultTemplateLocation.getName)
+  private[this] def resolveTemplate(templateLocation: File): URL =
+    if (templateLocation.exists) templateLocation.toURI.toURL
+    else getClass.getResource(templateLocation.getName)
 
   private[this] def createForwarderScripts(
     executableScriptName: String,
@@ -147,7 +148,8 @@ trait CommonStartScriptGenerator {
     log: sbt.Logger
   ): Seq[(File, String)] = {
     val tmp = targetDir / scriptTargetFolder
-    val forwarderTemplate = getClass.getResource(forwarderTemplateName)
+    val forwarderTemplate =
+      config.forwarderTemplateLocation.map(resolveTemplate).getOrElse(getClass.getResource(forwarderTemplateName))
     val classAndScriptNames = ScriptUtils.createScriptNames(discoveredMainClasses)
     ScriptUtils.warnOnScriptNameCollision(classAndScriptNames :+ ("<main script>" -> mainScriptName(config)), log)
     classAndScriptNames.map { case (qualifiedClassName, scriptNameWithoutSuffix) =>