Merge pull request #138 from sbt/wip/simplify-bash-script

unify upstart and  system v start scripts

Author: muuki88

src/main/resources/com/typesafe/sbt/packager/archetypes/bash-template

@@ -127,7 +127,8 @@ execRunner () {
     echo ""
   }
 
-  exec "$@"
+  # We Don't use "exec" here for our pids to be accurate.
+  "$@"
 }
 addJava () {
   dlog "[addJava] arg = '$1'"

src/main/resources/com/typesafe/sbt/packager/archetypes/systemv/start-template

@@ -13,31 +13,21 @@ test -e /etc/default/${{app_name}} && source /etc/default/${{app_name}}
 source /lib/init/vars.sh
 source /lib/lsb/init-functions
 
-get_java_cmd() {
-  if [ -x "$JAVA_HOME/bin/java" ]; then
-    echo "$JAVA_HOME/bin/java"
-  else
-    echo $(which java)
-  fi
-}
 
 PIDFILE=/var/run/${{app_name}}.pid
 
 if [ -z "$DAEMON_USER" ]; then
     DAEMON_USER=${{daemon_user}}
 fi
 
-if [ -z "$JAVA_CMD" ]; then
-    JAVA_CMD=$(get_java_cmd)
-fi
 
 # smb could define some additional options in $RUN_OPTS
-RUN_CMD="-cp ${{app_classpath}} ${{app_main_class}} $RUN_OPTS"
+RUN_CMD="${{chdir}}/bin/${{app_name}}"
 
 
 start_daemon() {
     log_daemon_msg "Starting" "${{app_name}}"
-    start-stop-daemon --background --chdir ${{chdir}} --chuid "$DAEMON_USER" --make-pidfile --pidfile "$PIDFILE" --exec "$JAVA_CMD" --start -- $RUN_CMD
+    start-stop-daemon --background --chdir ${{chdir}} --chuid "$DAEMON_USER" --make-pidfile --pidfile "$PIDFILE" --exec "$RUN_CMD" --start -- $RUN_OPTS
     log_end_msg $?
 }
 

src/main/scala/com/typesafe/sbt/packager/archetypes/JavaAppUpstartScript.scala

@@ -88,8 +88,6 @@ object JavaAppStartScript {
     execScript: String,
     chdir: String,
     appName: String,
-    appMainClass: String,
-    appClasspath: String,
     daemonUser: String,
     retries: Int = 0,
     retryTimeout: Int = 60): Seq[(String, String)] =
@@ -101,8 +99,6 @@ object JavaAppStartScript {
       "retries" -> retries.toString,
       "retryTimeout" -> retryTimeout.toString,
       "app_name" -> appName,
-      "app_main_class" -> appMainClass,
-      "app_classpath" -> appClasspath,
       "daemon_user" -> daemonUser)
 }
 

src/main/scala/com/typesafe/sbt/packager/archetypes/JavaServerApplication.scala

@@ -33,19 +33,16 @@ object JavaServerAppPackaging {
       // This one is begging for sbt 0.13 syntax...
       debianScriptReplacements <<= (
         maintainer in Debian, packageSummary in Debian, serverLoading in Debian, daemonUser in Debian, normalizedName,
-        sbt.Keys.version, defaultLinuxInstallLocation, mainClass in Compile, scriptClasspath)
-        map { (author, descr, loader, daemonUser, name, version, installLocation, mainClass, cp) =>
+        sbt.Keys.version, defaultLinuxInstallLocation)
+        map { (author, descr, loader, daemonUser, name, version, installLocation) =>
           val appDir = installLocation + "/" + name
-          val appClasspath = cp.map(appDir + "/lib/" + _).mkString(":")
 
           JavaAppStartScript.makeReplacements(
             author = author,
             description = descr,
             execScript = name,
             chdir = appDir,
             appName = name,
-            appClasspath = appClasspath,
-            appMainClass = mainClass.get,
             daemonUser = daemonUser)
         },
       // TODO - Default locations shouldn't be so hacky.