Allow custom templates to be provided separately for each template

src/main/scala/com/typesafe/sbt/packager/archetypes/systemloader/package.scala

@@ -71,5 +71,5 @@ package object systemloader {
     loader.toString + "/" + name
 
   private def overrideFromFile(sourceDirectory: File, loader: ServerLoader, name: String): Option[URL] =
-    Option(sourceDirectory / "templates" / "systemloader" / loader.toString).filter(_.exists).map(_.toURI.toURL)
+    Option(sourceDirectory / "templates" / "systemloader" / loader.toString / name).filter(_.exists).map(_.toURI.toURL)
 }

src/sbt-test/debian/override-loader-functions/build.sbt

@@ -0,0 +1,27 @@
+enablePlugins(JavaServerAppPackaging, JDebPackaging, SystemdPlugin)
+
+// TODO change this after #437 is fixed
+daemonUser in Linux := "root"
+daemonGroup in Linux := "app-group"
+
+mainClass in Compile := Some("empty")
+
+name := "debian-test"
+version := "0.1.0"
+maintainer := "Mitch Seymour <[email protected]>"
+
+packageSummary := "Test debian package"
+packageDescription := """A fun package description of our software,
+  with multiple lines."""
+
+TaskKey[Unit]("check-loader-functions") <<= (target, streams) map { (target, out) =>
+  val extracted = target / "tmp" / "extracted-package"
+  extracted.mkdirs()
+  Seq("dpkg-deb", "-e", (target / "debian-test_0.1.0_all.deb").absolutePath, extracted.absolutePath).!
+
+  val script = IO.read(extracted / "postinst")
+
+  assert(script.contains("# right systemd template"), s"override script wasn't picked, script is\n$script")
+  assert(!script.contains("wrong systemd start template"), s"script contained wrong template, script is\n$script")
+  ()
+}

src/sbt-test/debian/override-loader-functions/project/plugins.sbt

@@ -0,0 +1,3 @@
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % sys.props("project.version"))
+
+libraryDependencies += "org.vafer" % "jdeb" % "1.3" artifacts (Artifact("jdeb", "jar", "jar"))

src/sbt-test/debian/override-loader-functions/src/templates/start

@@ -0,0 +1,2 @@
+# check that old start template isn't picked
+# wrong systemd start template

src/sbt-test/debian/override-loader-functions/test

@@ -0,0 +1,6 @@
+# Run the debian packaging.
+> debian:packageBin
+$ exists target/debian-test_0.1.0_all.deb
+
+# Check files for defaults
+> check-loader-functions

src/sbt-test/rpm/override-loader-functions/build.sbt

@@ -0,0 +1,33 @@
+enablePlugins(JavaServerAppPackaging, SystemdPlugin)
+
+name := "rpm-test"
+
+version := "0.1.0"
+
+maintainer := "Mitch Seymour <[email protected]>"
+
+packageSummary := "Test rpm package"
+
+executableScriptName := "rpm-exec"
+
+packageDescription := """A fun package description of our software,
+  with multiple lines."""
+
+rpmRelease := "1"
+
+rpmVendor := "typesafe"
+
+rpmUrl := Some("http://github.com/sbt/sbt-native-packager")
+
+rpmLicense := Some("BSD")
+
+rpmGroup := Some("test-group")
+
+TaskKey[Unit]("check-loader-script") <<= (target, streams) map { (target, out) =>
+  val path = target / "rpm"/ "RPMS" / "noarch" / "rpm-test-0.1.0-1.noarch.rpm"
+  val scripts = s"rpm -qp --scripts ${path.absolutePath}".!!
+
+  assert(scripts.contains("# right systemd template"), s"override script wasn't picked, scripts are\n$scripts")
+  assert(!scripts.contains("wrong start template"), s"scripts contained wrong template, scripts are\n$scripts")
+  ()
+}

src/sbt-test/rpm/override-loader-functions/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % sys.props("project.version"))

src/sbt-test/rpm/override-loader-functions/src/templates/start

@@ -0,0 +1,2 @@
+# check that old start template isn't picked
+# wrong start template

src/sbt-test/rpm/override-loader-functions/src/templates/systemloader/systemd/loader-functions

@@ -0,0 +1 @@
+# right systemd template

src/sbt-test/rpm/override-loader-functions/test

@@ -0,0 +1,5 @@
+# Run the rpm packaging.
+> rpm:package-bin
+$ exists target/rpm/RPMS/noarch/rpm-test-0.1.0-1.noarch.rpm
+
+> check-loader-script

src/sbt-test/rpm/override-start-script-systemd/src/templates/systemloader/systemd/start-template

@@ -0,0 +1 @@
+# right systemd template

src/sphinx/archetypes/cheatsheet.rst

@@ -185,15 +185,20 @@ the ``bashScriptExtraDefines`` that will be used in addition to the default set:
 
 
 
-Service Manager
+Service Manager Templates
 -----------------------------------------
 
-It's also possible to override the entire script/configuration for your service manager.
-Create a file ``src/templates/systemloader/$loader`` and it will be used instead.
+It's also possible to override the entire script/configuration templates for your service manager.
+These templates vary by loader type. Create a file ``src/templates/systemloader/$loader/$template``
+and it will be used instead.
 
 Possible values:
 
 * ``$loader`` - ``upstart``, ``systemv`` or ``systemd``
+* ``$template`` -
+  * ``systemv`` - ``loader-functions``, ``start-debian-template``, or ``start-rpm-template``
+  * ``systemd`` - ``loader-functions`` or ``start-template``
+  * ``upstart`` - ``loader-functions`` or ``start-template``
 
 **Syntax**