FIX #405: Script replacements doesn't work with jdeb packaging

src/main/scala/com/typesafe/sbt/packager/debian/JDebPackaging.scala

@@ -2,10 +2,13 @@ package com.typesafe.sbt
 package packager
 package debian
 
+
+import com.typesafe.sbt.packager.archetypes.TemplateWriter
+import com.typesafe.sbt.packager.universal.Archives
 import sbt._
 import sbt.Keys.{ target, normalizedName, version, streams, mappings, packageBin }
 import linux.{ LinuxSymlink, LinuxPackageMapping, LinuxFileMetaData }
-import linux.LinuxPlugin.autoImport.{ linuxPackageMappings, linuxPackageSymlinks, packageArchitecture }
+import linux.LinuxPlugin.autoImport.{ linuxPackageMappings, linuxPackageSymlinks, packageArchitecture, linuxScriptReplacements }
 import scala.collection.JavaConversions._
 import org.vafer.jdeb.{ DebMaker, DataProducer }
 import org.vafer.jdeb.mapping._
@@ -67,9 +70,14 @@ object JDebPackaging extends AutoPlugin with DebianPluginLike {
       val controlDir = targetDir / Names.Debian
       val control = debianControlFile.value
       val conffile = debianConffilesFile.value
+      val replacements = debianMakeChownReplacements.value +: linuxScriptReplacements.value
 
       val controlScripts = debianMaintainerScripts.value
-      controlScripts foreach { case (file, script) => IO.copyFile(file, controlDir / script) }
+      for ((file, name) <- controlScripts) {
+        val targetFile = controlDir / name
+        copyFiles(file, targetFile, LinuxFileMetaData())
+        filterFiles(targetFile, replacements, LinuxFileMetaData())
+      }
 
       log.info("Building debian package with java based implementation 'jdeb'")
       val console = new JDebConsole(log)
@@ -89,6 +97,35 @@ object JDebPackaging extends AutoPlugin with DebianPluginLike {
       debianFile
     })
 
+
+  /**
+   * The same as [[DebianPluginLike.copyAndFixPerms]] except chmod invocation (for windows compatibility).
+   * Permissions will be handled by jDeb packager itself.
+   */
+  private[this] def copyFiles(from: File, to: File, perms: LinuxFileMetaData, zipped: Boolean = false): Unit = {
+    if (zipped) {
+      IO.withTemporaryDirectory { dir =>
+        val tmp = dir / from.getName
+        IO.copyFile(from, tmp)
+        val zipped = Archives.gzip(tmp)
+        IO.copyFile(zipped, to, true)
+      }
+    } else IO.copyFile(from, to, true)
+  }
+
+
+  /**
+   * The same as [[DebianPluginLike.filterAndFixPerms]] except chmod invocation (for windows compatibility).
+   * Permissions will be handled by jDeb packager itself.
+   */
+  private[this] final def filterFiles(script: File, replacements: Seq[(String, String)], perms: LinuxFileMetaData): File = {
+    val filtered = TemplateWriter.generateScript(script.toURI.toURL, replacements)
+    IO.delete(script)
+    IO.write(script, filtered)
+    script
+  }
+
+
   /**
    * Creating file and directory producers. These "produce" the
    * files for the debian packaging.

src/sbt-test/debian/jdeb-script-replacements/build.sbt

@@ -0,0 +1,34 @@
+enablePlugins(JavaServerAppPackaging, JDebPackaging)
+
+name := "debian-test"
+
+version := "0.1.0"
+
+maintainer := "Josh Suereth <joshua.suereth@typesafe.com>"
+
+packageSummary := "Test debian package"
+
+packageDescription := """A fun package description of our software,
+  with multiple lines."""
+
+debianPackageDependencies in Debian ++= Seq("java2-runtime", "bash (>= 2.05a-11)")
+
+debianPackageRecommends in Debian += "git"
+
+TaskKey[Unit]("check-control-files") <<= (target, streams) map { (target, out) =>
+  val header = "#!/bin/sh"
+  val extracted = target / "extracted"
+  println(extracted.getAbsolutePath)
+  Seq("dpkg-deb", "-R", (target / "debian-test_0.1.0_all.deb").absolutePath, extracted.absolutePath).!
+  val preinst = extracted / "DEBIAN/preinst"
+  val postinst = extracted / "DEBIAN/postinst"
+  val prerm = extracted / "DEBIAN/prerm"
+  val postrm = extracted / "DEBIAN/postrm"
+  Seq(preinst, postinst, prerm, postrm) foreach { script =>
+    val content = IO.read(script)
+    assert(content.startsWith(header), "script doesn't start with #!/bin/sh header:\n" + script)
+    assert(header.r.findAllIn(content).length == 1, "script contains more than one header line:\n" + script)
+  }
+  out.log.success("Successfully tested systemV control files")
+  ()
+}

src/sbt-test/debian/jdeb-script-replacements/project/plugins.sbt

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

src/sbt-test/debian/jdeb-script-replacements/test

@@ -0,0 +1,5 @@
+# Run the debian packaging.
+$ mkdir src/resources/empty
+> debian:package-bin
+$ exists target/debian-test_0.1.0_all.deb
+> check-control-files