Refactored Ruby installation into a function

Refactored Ruby installation into a separate function, and use the
Statements method to download and extract the Rubygems tarball.

scriptbuilder/src/main/java/org/jclouds/scriptbuilder/statements/chef/InstallChefGems.java

@@ -22,6 +22,7 @@ import static org.jclouds.scriptbuilder.domain.Statements.call;
 
 import org.jclouds.scriptbuilder.domain.OsFamily;
 import org.jclouds.scriptbuilder.domain.StatementList;
+import org.jclouds.scriptbuilder.statements.ruby.InstallRuby;
 
 /**
  * Installs Chef gems onto a host.
@@ -31,7 +32,7 @@ import org.jclouds.scriptbuilder.domain.StatementList;
 public class InstallChefGems extends StatementList {
 
    public InstallChefGems() {
-      super(call("setupPublicCurl"), call("installChefGems"));
+      super(new InstallRuby(), call("installChefGems"));
    }
 
    @Override

scriptbuilder/src/main/java/org/jclouds/scriptbuilder/statements/ruby/InstallRuby.java

@@ -0,0 +1,62 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.scriptbuilder.statements.ruby;
+
+import static org.jclouds.scriptbuilder.domain.Statements.call;
+import static org.jclouds.scriptbuilder.domain.Statements.exec;
+import static org.jclouds.scriptbuilder.domain.Statements.extractTargzAndFlattenIntoDirectory;
+
+import java.net.URI;
+
+import org.jclouds.scriptbuilder.domain.OsFamily;
+import org.jclouds.scriptbuilder.domain.Statement;
+import org.jclouds.scriptbuilder.domain.StatementList;
+
+/**
+ * Installs Ruby and Rubygems gems onto a host.
+ * 
+ * @author Ignasi Barrera
+ */
+public class InstallRuby extends StatementList {
+
+   private static final URI RUBYGEMS_URI = URI.create("http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz");
+
+   public static Statement installRubyGems() {
+      return new StatementList(//
+            exec("("), //
+            extractTargzAndFlattenIntoDirectory(RUBYGEMS_URI, "/tmp/rubygems"), //
+            exec("{cd} /tmp/rubygems"), //
+            exec("ruby setup.rb --no-format-executable"), //
+            exec("{rm} -fr /tmp/rubygems"), //
+            exec(")"));
+   }
+
+   public InstallRuby() {
+      super(call("setupPublicCurl"), call("installRuby"), installRubyGems());
+   }
+
+   @Override
+   public String render(OsFamily family) {
+      if (family == OsFamily.WINDOWS) {
+         throw new UnsupportedOperationException("windows not yet implemented");
+      }
+      return super.render(family);
+   }
+
+}

scriptbuilder/src/main/resources/functions/installChefGems.sh

@@ -1,27 +1,5 @@
 function installChefGems() {
-  if [ ! -f /usr/bin/chef-client ]; then
+  if ! hash chef-client 2>/dev/null; then
-    if which dpkg &> /dev/null; then
-      apt-get-update
-      apt-get install -y ruby ruby1.8-dev build-essential wget libruby-extras libruby1.8-extras
-    elif which rpm &> /dev/null; then
-      # Disable chef from the base repo (http://tickets.opscode.com/browse/CHEF-2906)
-      sed -i "s/\[base\]/\0\n\exclude=ruby*/g" /etc/yum.repos.d/CentOS-Base.repo
-      # Make sure to install an appropriate ruby version
-      yum erase -y ruby ruby-libs
-      rpm -Uvh http://rbel.co/rbel5
-      yum install -y ruby ruby-devel make gcc gcc-c++ kernel-devel automake autoconf wget
-    else
-      abort "we only support apt-get and yum right now... please contribute"
-    fi
-    (
-    mkdir -p /tmp/bootchef
-    cd /tmp/bootchef
-    wget http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz
-    tar zxf rubygems-1.3.7.tgz
-    cd rubygems-1.3.7
-    ruby setup.rb --no-format-executable
-    rm -fr /tmp/bootchef
-    )
     if which rpm &> /dev/null; then
       #Install gems provided by libruby-extras deb package (based on https://launchpad.net/ubuntu/precise/+package/libruby-extras)
       /usr/bin/gem install cmdparse daemons log4r mmap ncurses --no-rdoc --no-ri --verbose

scriptbuilder/src/main/resources/functions/installRuby.sh

@@ -0,0 +1,17 @@
+function installRuby() {
+  if ! hash ruby 2>/dev/null; then
+    if which dpkg &> /dev/null; then
+      apt-get-update
+      apt-get install -y ruby ruby1.8-dev build-essential wget libruby-extras libruby1.8-extras
+    elif which rpm &> /dev/null; then
+      # Disable chef from the base repo (http://tickets.opscode.com/browse/CHEF-2906)
+      sed -i "s/\[base\]/\0\n\exclude=ruby*/g" /etc/yum.repos.d/CentOS-Base.repo
+      # Make sure to install an appropriate ruby version
+      yum erase -y ruby ruby-libs
+      rpm -Uvh http://rbel.co/rbel5
+      yum install -y ruby ruby-devel make gcc gcc-c++ kernel-devel automake autoconf wget
+    else
+      abort "we only support apt-get and yum right now... please contribute"
+    fi
+  fi
+}

scriptbuilder/src/test/java/org/jclouds/scriptbuilder/statements/chef/ChefSoloTest.java

@@ -20,10 +20,15 @@ package org.jclouds.scriptbuilder.statements.chef;
 
 import static org.testng.Assert.assertEquals;
 
+import java.io.IOException;
+
 import org.jclouds.scriptbuilder.domain.OsFamily;
+import org.jclouds.scriptbuilder.domain.ShellToken;
 import org.testng.annotations.Test;
 
+import com.google.common.base.Charsets;
 import com.google.common.collect.ImmutableList;
+import com.google.common.io.Resources;
 
 @Test(groups = "unit", testName = "ChefSoloTest")
 public class ChefSoloTest {
@@ -43,34 +48,42 @@ public class ChefSoloTest {
       ChefSolo.builder().cookbooksArchiveLocation("/tmp/cookbooks").build().render(OsFamily.WINDOWS);
    }
 
-   public void testChefSoloWithCookbooksLocation() {
+   public void testChefSoloWithCookbooksLocation() throws IOException {
       String script = ChefSolo.builder().cookbooksArchiveLocation("/tmp/cookbooks").build().render(OsFamily.UNIX);
-      assertEquals(script,
+      assertEquals(
-            "setupPublicCurl || return 1\ninstallChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks\n");
+            script,
+            Resources.toString(Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8) + "installChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks\n");
    }
 
-   public void testChefSoloWithCookbooksLocationAndSingleRecipe() {
+   public void testChefSoloWithCookbooksLocationAndSingleRecipe() throws IOException {
       String script = ChefSolo.builder().cookbooksArchiveLocation("/tmp/cookbooks").installRecipe("apache2").build()
             .render(OsFamily.UNIX);
       assertEquals(
             script,
-            "setupPublicCurl || return 1\ninstallChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2]\n");
+            Resources.toString(Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8)
+                  + "installChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2]\n");
    }
 
-   public void testChefSoloWithCookbooksLocationAndMultipleRecipes() {
+   public void testChefSoloWithCookbooksLocationAndMultipleRecipes() throws IOException {
       String script = ChefSolo.builder().cookbooksArchiveLocation("/tmp/cookbooks").installRecipe("apache2")
             .installRecipe("mysql").build().render(OsFamily.UNIX);
       assertEquals(
             script,
-            "setupPublicCurl || return 1\ninstallChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2],recipe[mysql]\n");
+            Resources.toString(Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8)
+                  + "installChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2],recipe[mysql]\n");
    }
 
-   public void testChefSoloWithCookbooksLocationAndMultipleRecipesInList() {
+   public void testChefSoloWithCookbooksLocationAndMultipleRecipesInList() throws IOException {
       String script = ChefSolo.builder().cookbooksArchiveLocation("/tmp/cookbooks")
             .installRecipes(ImmutableList.<String> of("apache2", "mysql")).build().render(OsFamily.UNIX);
       assertEquals(
             script,
-            "setupPublicCurl || return 1\ninstallChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2],recipe[mysql]\n");
+            Resources.toString(Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8)
+                  + "installChefGems || return 1\nchef-solo -N `hostname` -r /tmp/cookbooks -o recipe[apache2],recipe[mysql]\n");
    }
 
 }

scriptbuilder/src/test/java/org/jclouds/scriptbuilder/statements/chef/InstallChefGemsTest.java

@@ -39,9 +39,11 @@ public class InstallChefGemsTest {
       new InstallChefGems().render(OsFamily.WINDOWS);
    }
 
-   public void installChefGemsUnix() {
+   public void installChefGemsUnix() throws IOException {
-      assertEquals(new InstallChefGems().render(OsFamily.UNIX),
+      assertEquals(
-            "setupPublicCurl || return 1\ninstallChefGems || return 1\n");
+            new InstallChefGems().render(OsFamily.UNIX),
+            Resources.toString(Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8) + "installChefGems || return 1\n");
    }
 
    public void installChefGemsUnixInScriptBuilderSourcesSetupPublicCurl() throws IOException {

scriptbuilder/src/test/java/org/jclouds/scriptbuilder/statements/ruby/InstallRubyTest.java

@@ -0,0 +1,53 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.scriptbuilder.statements.ruby;
+
+import static org.testng.Assert.assertEquals;
+
+import java.io.IOException;
+
+import org.jclouds.scriptbuilder.InitScript;
+import org.jclouds.scriptbuilder.domain.OsFamily;
+import org.jclouds.scriptbuilder.domain.ShellToken;
+import org.testng.annotations.Test;
+
+import com.google.common.base.Charsets;
+import com.google.common.io.Resources;
+
+@Test(groups = "unit", testName = "InstallRubyTest")
+public class InstallRubyTest {
+
+   @Test(expectedExceptions = UnsupportedOperationException.class,
+         expectedExceptionsMessageRegExp = "windows not yet implemented")
+   public void installRubyInWindows() {
+      new InstallRuby().render(OsFamily.WINDOWS);
+   }
+
+   public void installRubyUnix() throws IOException {
+      assertEquals(new InstallRuby().render(OsFamily.UNIX), Resources.toString(
+            Resources.getResource("test_install_ruby." + ShellToken.SH.to(OsFamily.UNIX)), Charsets.UTF_8));
+   }
+
+   public void installRubyUnixInScriptBuilderSourcesSetupPublicCurl() throws IOException {
+      assertEquals(InitScript.builder().name("install_ruby").run(new InstallRuby()).build().render(OsFamily.UNIX),
+            Resources.toString(
+                  Resources.getResource("test_install_ruby_scriptbuilder." + ShellToken.SH.to(OsFamily.UNIX)),
+                  Charsets.UTF_8));
+   }
+}

scriptbuilder/src/test/resources/test_install_chef_gems_scriptbuilder.sh

@@ -134,8 +134,8 @@ function setupPublicCurl() {
   ensure_can_resolve_public_dns
   return 0  
 }
-function installChefGems() {
+function installRuby() {
-  if [ ! -f /usr/bin/chef-client ]; then
+  if ! hash ruby 2>/dev/null; then
     if which dpkg &> /dev/null; then
       apt-get-update
       apt-get install -y ruby ruby1.8-dev build-essential wget libruby-extras libruby1.8-extras
@@ -149,15 +149,10 @@ function installChefGems() {
     else
       abort "we only support apt-get and yum right now... please contribute"
     fi
-    (
+  fi
-    mkdir -p /tmp/bootchef
+}
-    cd /tmp/bootchef
+function installChefGems() {
-    wget http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz
+  if ! hash chef-client 2>/dev/null; then
-    tar zxf rubygems-1.3.7.tgz
-    cd rubygems-1.3.7
-    ruby setup.rb --no-format-executable
-    rm -fr /tmp/bootchef
-    )
     if which rpm &> /dev/null; then
       #Install gems provided by libruby-extras deb package (based on https://launchpad.net/ubuntu/precise/+package/libruby-extras)
       /usr/bin/gem install cmdparse daemons log4r mmap ncurses --no-rdoc --no-ri --verbose
@@ -174,6 +169,17 @@ END_OF_JCLOUDS_SCRIPT
 	rm -f $INSTANCE_HOME/rc
 	trap 'echo $?>$INSTANCE_HOME/rc' 0 1 2 3 15
 	setupPublicCurl || exit 1
+	installRuby || exit 1
+	(
+	mkdir /tmp/$$
+	curl -q -s -S -L --connect-timeout 10 --max-time 600 --retry 20 -X GET  http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz |(mkdir -p /tmp/$$ &&cd /tmp/$$ &&tar -xpzf -)
+	mkdir -p /tmp/rubygems
+	mv /tmp/$$/*/* /tmp/rubygems
+	rm -rf /tmp/$$
+	cd /tmp/rubygems
+	ruby setup.rb --no-format-executable
+	rm -fr /tmp/rubygems
+	)
 	
 	installChefGems || exit 1
 	

scriptbuilder/src/test/resources/test_install_ruby.sh

@@ -0,0 +1,12 @@
+setupPublicCurl || return 1
+installRuby || return 1
+(
+mkdir /tmp/$$
+curl -q -s -S -L --connect-timeout 10 --max-time 600 --retry 20 -X GET  http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz |(mkdir -p /tmp/$$ &&cd /tmp/$$ &&tar -xpzf -)
+mkdir -p /tmp/rubygems
+mv /tmp/$$/*/* /tmp/rubygems
+rm -rf /tmp/$$
+cd /tmp/rubygems
+ruby setup.rb --no-format-executable
+rm -fr /tmp/rubygems
+)

scriptbuilder/src/test/resources/test_install_ruby_scriptbuilder.sh

@@ -0,0 +1,228 @@
+#!/bin/bash
+set +u
+shopt -s xpg_echo
+shopt -s expand_aliases
+unset PATH JAVA_HOME LD_LIBRARY_PATH
+function abort {
+   echo "aborting: $@" 1>&2
+   exit 1
+}
+function default {
+   export INSTANCE_NAME="install_ruby"
+export INSTANCE_HOME="/tmp/$INSTANCE_NAME"
+export LOG_DIR="$INSTANCE_HOME"
+   return $?
+}
+function install_ruby {
+      return $?
+}
+function findPid {
+   unset FOUND_PID;
+   [ $# -eq 1 ] || {
+      abort "findPid requires a parameter of pattern to match"
+      return 1
+   }
+   local PATTERN="$1"; shift
+   local _FOUND=`ps auxwww|grep "$PATTERN"|grep -v " $0"|grep -v grep|grep -v $$|awk '{print $2}'`
+   [ -n "$_FOUND" ] && {
+      export FOUND_PID=$_FOUND
+      return 0
+   } || {
+      return 1
+   }
+}
+function forget {
+   unset FOUND_PID;
+   [ $# -eq 3 ] || {
+      abort "forget requires parameters INSTANCE_NAME SCRIPT LOG_DIR"
+      return 1
+   }
+   local INSTANCE_NAME="$1"; shift
+   local SCRIPT="$1"; shift
+   local LOG_DIR="$1"; shift
+   mkdir -p $LOG_DIR
+   findPid $INSTANCE_NAME
+   [ -n "$FOUND_PID" -a -f $LOG_DIR/stdout.log ] && {
+      echo $INSTANCE_NAME already running pid $FOUND_PID
+      return 1;
+   } || {
+      nohup $SCRIPT >$LOG_DIR/stdout.log 2>$LOG_DIR/stderr.log &
+      RETURN=$?
+      # this is generally followed by findPid, so we shouldn't exit 
+      # immediately as the proc may not have registered in ps, yet
+      test $RETURN && sleep 1
+      return $RETURN;
+   }
+}
+export PATH=/usr/ucb/bin:/bin:/sbin:/usr/bin:/usr/sbin
+case $1 in
+init)
+   default || exit 1
+   install_ruby || exit 1
+   mkdir -p $INSTANCE_HOME
+   
+   # create runscript header
+   cat > $INSTANCE_HOME/install_ruby.sh <<-'END_OF_JCLOUDS_SCRIPT'
+	#!/bin/bash
+	set +u
+	shopt -s xpg_echo
+	shopt -s expand_aliases
+	
+	PROMPT_COMMAND='echo -ne \"\033]0;install_ruby\007\"'
+	export PATH=/usr/ucb/bin:/bin:/sbin:/usr/bin:/usr/sbin
+
+	export INSTANCE_NAME='install_ruby'
+END_OF_JCLOUDS_SCRIPT
+   cat >> $INSTANCE_HOME/install_ruby.sh <<-END_OF_JCLOUDS_SCRIPT
+	export INSTANCE_NAME='$INSTANCE_NAME'
+	export INSTANCE_HOME='$INSTANCE_HOME'
+	export LOG_DIR='$LOG_DIR'
+END_OF_JCLOUDS_SCRIPT
+   cat >> $INSTANCE_HOME/install_ruby.sh <<-'END_OF_JCLOUDS_SCRIPT'
+	function abort {
+   echo "aborting: $@" 1>&2
+   exit 1
+}
+alias apt-get-update="apt-get update -qq"
+alias apt-get-install="apt-get install -f -y -qq --force-yes"
+alias yum-install="yum --quiet --nogpgcheck -y install"
+
+function ensure_cmd_or_install_package_apt(){
+  local cmd=$1
+  local pkg=$2
+  
+  hash $cmd 2>/dev/null || ( apt-get-update && apt-get-install $pkg )
+}
+
+function ensure_cmd_or_install_package_yum(){
+  local cmd=$1
+  local pkg=$2
+  hash $cmd 2>/dev/null || yum-install $pkg
+}
+
+function ensure_netutils_apt() {
+  ensure_cmd_or_install_package_apt nslookup dnsutils
+  ensure_cmd_or_install_package_apt curl curl
+}
+
+function ensure_netutils_yum() {
+  ensure_cmd_or_install_package_yum nslookup bind-utils
+  ensure_cmd_or_install_package_yum curl curl
+}
+
+# most network services require that the hostname is in
+# the /etc/hosts file, or they won't operate
+function ensure_hostname_in_hosts() {
+  egrep -q `hostname` /etc/hosts || awk -v hostname=`hostname` 'END { print $1" "hostname }' /proc/net/arp >> /etc/hosts
+}
+
+# download locations for many services are at public dns
+function ensure_can_resolve_public_dns() {
+  nslookup yahoo.com | grep yahoo.com > /dev/null || echo nameserver 208.67.222.222 >> /etc/resolv.conf
+}
+
+function setupPublicCurl() {
+  ensure_hostname_in_hosts
+  if which dpkg &> /dev/null; then
+    ensure_netutils_apt
+  elif which rpm &> /dev/null; then
+    ensure_netutils_yum
+  else
+    abort "we only support apt-get and yum right now... please contribute!"
+    return 1
+  fi
+  ensure_can_resolve_public_dns
+  return 0  
+}
+function installRuby() {
+  if ! hash ruby 2>/dev/null; then
+    if which dpkg &> /dev/null; then
+      apt-get-update
+      apt-get install -y ruby ruby1.8-dev build-essential wget libruby-extras libruby1.8-extras
+    elif which rpm &> /dev/null; then
+      # Disable chef from the base repo (http://tickets.opscode.com/browse/CHEF-2906)
+      sed -i "s/\[base\]/\0\n\exclude=ruby*/g" /etc/yum.repos.d/CentOS-Base.repo
+      # Make sure to install an appropriate ruby version
+      yum erase -y ruby ruby-libs
+      rpm -Uvh http://rbel.co/rbel5
+      yum install -y ruby ruby-devel make gcc gcc-c++ kernel-devel automake autoconf wget
+    else
+      abort "we only support apt-get and yum right now... please contribute"
+    fi
+  fi
+}
+
+END_OF_JCLOUDS_SCRIPT
+   
+   # add desired commands from the user
+   cat >> $INSTANCE_HOME/install_ruby.sh <<-'END_OF_JCLOUDS_SCRIPT'
+	cd $INSTANCE_HOME
+	rm -f $INSTANCE_HOME/rc
+	trap 'echo $?>$INSTANCE_HOME/rc' 0 1 2 3 15
+	setupPublicCurl || exit 1
+	
+	installRuby || exit 1
+	
+	(
+	mkdir /tmp/$$
+	curl -q -s -S -L --connect-timeout 10 --max-time 600 --retry 20 -X GET  http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz |(mkdir -p /tmp/$$ &&cd /tmp/$$ &&tar -xpzf -)
+	mkdir -p /tmp/rubygems
+	mv /tmp/$$/*/* /tmp/rubygems
+	rm -rf /tmp/$$
+	cd /tmp/rubygems
+	ruby setup.rb --no-format-executable
+	rm -fr /tmp/rubygems
+	)
+	
+END_OF_JCLOUDS_SCRIPT
+   
+   # add runscript footer
+   cat >> $INSTANCE_HOME/install_ruby.sh <<-'END_OF_JCLOUDS_SCRIPT'
+	exit $?
+	
+END_OF_JCLOUDS_SCRIPT
+   
+   chmod u+x $INSTANCE_HOME/install_ruby.sh
+   ;;
+status)
+   default || exit 1
+   findPid $INSTANCE_NAME || exit 1
+   echo $FOUND_PID
+   ;;
+stop)
+   default || exit 1
+   findPid $INSTANCE_NAME || exit 1
+   [ -n "$FOUND_PID" ]  && {
+      echo stopping $FOUND_PID
+      kill -9 $FOUND_PID
+   }
+   ;;
+start)
+   default || exit 1
+   forget $INSTANCE_NAME $INSTANCE_HOME/$INSTANCE_NAME.sh $LOG_DIR || exit 1
+   ;;
+stdout)
+   default || exit 1
+   cat $LOG_DIR/stdout.log
+   ;;
+stderr)
+   default || exit 1
+   cat $LOG_DIR/stderr.log
+   ;;
+exitstatus)
+   default || exit 1
+   [ -f $LOG_DIR/rc ] && cat $LOG_DIR/rc;;
+tail)
+   default || exit 1
+   tail $LOG_DIR/stdout.log
+   ;;
+tailerr)
+   default || exit 1
+   tail $LOG_DIR/stderr.log
+   ;;
+run)
+   default || exit 1
+   $INSTANCE_HOME/$INSTANCE_NAME.sh
+   ;;
+esac
+exit $?