From e013693961bffeac61104163ae62833f628e63ee Mon Sep 17 00:00:00 2001
From: AJ ONeal <awesome@coolaj86.com>
Date: Thu, 15 Jan 2015 15:41:04 -0700
Subject: [PATCH] refactor

---
 setup-deps-mavericks.bash |  69 +++++++++++++++
 setup-deps-ubuntu.bash    |  26 ++++++
 setup-iojs-mavericks.bash |  10 +++
 setup-iojs-ubuntu.bash    |  20 +++++
 setup-mavericks.bash      | 134 ----------------------------
 setup-ubuntu.bash         |  74 ----------------
 setup.bash                | 180 +++++++++++++++++++++++++++++++-------
 7 files changed, 272 insertions(+), 241 deletions(-)
 create mode 100644 setup-deps-mavericks.bash
 create mode 100644 setup-deps-ubuntu.bash
 create mode 100644 setup-iojs-mavericks.bash
 create mode 100644 setup-iojs-ubuntu.bash
 delete mode 100644 setup-mavericks.bash
 delete mode 100644 setup-ubuntu.bash

diff --git a/setup-deps-mavericks.bash b/setup-deps-mavericks.bash
new file mode 100644
index 0000000..7415946
--- /dev/null
+++ b/setup-deps-mavericks.bash
@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# curl -fsSL https://ldsconnect.org/setup-osx.bash | bash -c
+NO_FAIL2BAN=${1}
+
+echo ""
+echo ""
+
+# XCode
+# testing for which git, gcc, etc will not work because the tools are aliased to the install script
+if [ -z "$(xcode-select --print-path 2>/dev/null)" ] || [ -z "$(git --version 2>/dev/null)" ]; then
+  echo "Hey You!!!"
+  echo ""
+  echo "A thingy is going to pop up and ask you to install 'command line developer tools' for 'xcode-select'"
+  echo ""
+  echo "You need to click Install. This installation should begin when that finishes."
+  echo "(if that box doesn't pop up in a second or two, something went wrong)"
+  echo "(note that it may pop up underneath this window, so check for it in the dock too)"
+  echo ""
+
+  xcode-select --install 2>/dev/null
+
+  while true; do
+    sleep 5
+
+    if [ -n "$(git --version 2>/dev/null)" ] && [ -n "$(xcode-select --print-path 2>/dev/null)" ]; then
+      break;
+    fi
+  done
+
+  echo "It looks like the other install is finishing up."
+  echo "This installation will begin in one minute."
+  sleep 60
+else
+  echo "XCode Command Line Tools already installed"
+fi
+
+# homebrew
+if [ -z "$(which brew | grep brew)" ]; then
+  echo "installing brew (homebrew)..."
+  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+  brew doctor
+else
+  echo "updating brew..."
+  brew update >/dev/null 2>/dev/null
+fi
+
+if [ -z "$(which wget | grep wget)" ]; then
+  echo "installing wget..."
+  brew install wget
+else
+  echo "wget already installed"
+fi
+
+# http://www.fail2ban.org/wiki/index.php/HOWTO_Mac_OS_X_Server_(10.5)
+if [ -z "$(which fail2ban-server | grep fail2ban)" ]; then
+  if [ -z "${NO_FAIL2BAN}" ]; then
+    brew install fail2ban
+    sudo cp -fv /usr/local/opt/fail2ban/*.plist /Library/LaunchDaemons
+    sudo launchctl load /Library/LaunchDaemons/homebrew.mxcl.fail2ban.plist
+  fi
+fi
+
+if [ -z "$(which pkg-config | grep pkg-config)" ]; then
+  echo "installing pkg-config..."
+  brew install pkg-config
+else
+  echo "pkg-config already installed"
+fi
diff --git a/setup-deps-ubuntu.bash b/setup-deps-ubuntu.bash
new file mode 100644
index 0000000..cd68b75
--- /dev/null
+++ b/setup-deps-ubuntu.bash
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# curl -fsSL https://ldsconnect.org/setup-linux.bash | bash -c
+
+NO_FAIL2BAN=${1}
+
+echo ""
+echo ""
+
+echo "updating apt-get..."
+sudo bash -c "apt-get update -qq -y < /dev/null" > /dev/null
+
+# fail2ban
+if [ -z "$(which fail2ban-server | grep fail2ban)" ]; then
+  if [ -z "${NO_FAIL2BAN}" ]; then
+    echo "installing fail2ban..."
+    sudo bash -c "apt-get install -qq -y fail2ban < /dev/null" > /dev/null
+  fi
+fi
+
+# git, wget, curl, build-essential
+if [ -z "$(which pkg-config | grep pkg-config)" ] || [ -z "$(which git | grep git)" ] || [ -z "$(which wget | grep wget)" ] || [ -z "$(which curl | grep curl)" ] || [ -z "$(which gcc | grep gcc)" ] || [ -z "$(which rsync | grep rsync)" ]
+then
+  echo "installing git, wget, curl, build-essential, rsync, pkg-config..."
+  sudo bash -c "apt-get install -qq -y git wget curl build-essential rsync pkg-config < /dev/null" > /dev/null 2>/dev/null
+fi
diff --git a/setup-iojs-mavericks.bash b/setup-iojs-mavericks.bash
new file mode 100644
index 0000000..0770fd9
--- /dev/null
+++ b/setup-iojs-mavericks.bash
@@ -0,0 +1,10 @@
+IOJS_VER=${1}
+
+if [ -n "${IOJS_VER}" ]; then
+  echo "installing io.js as iojs ${IOJS_VER}..."
+  curl -fsSL "http://iojs.org/dist/${IOJS_VER}/iojs-${IOJS_VER}.pkg" -o "/tmp/iojs-${IOJS_VER}.pkg"
+  sudo /usr/sbin/installer -pkg "/tmp/iojs-${IOJS_VER}.pkg" -target /
+
+
+  sudo chown -R $(whoami) /usr/local 2>/dev/null
+fi
diff --git a/setup-iojs-ubuntu.bash b/setup-iojs-ubuntu.bash
new file mode 100644
index 0000000..baa3f62
--- /dev/null
+++ b/setup-iojs-ubuntu.bash
@@ -0,0 +1,20 @@
+IOJS_VER=${1}
+
+if [ -n "$(arch | grep 64)" ]; then
+  ARCH="x64"
+else
+  ARCH="x86"
+fi
+
+if [ -n "${IOJS_VER}" ]; then
+  echo "installing io.js as iojs ${IOJS_VER}..."
+  curl -fsSL "http://iojs.org/dist/${IOJS_VER}/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz" \
+    -o "/tmp/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz"
+  pushd /tmp
+  tar xf /tmp/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz
+  rm iojs-${IOJS_VER}-linux-x64/{LICENSE,CHANGELOG.md,README.md}
+  sudo rsync -a "/tmp/iojs-${IOJS_VER}-linux-${ARCH}/" /usr/local/
+
+
+  sudo chown -R $(whoami) /usr/local
+fi
diff --git a/setup-mavericks.bash b/setup-mavericks.bash
deleted file mode 100644
index 482f418..0000000
--- a/setup-mavericks.bash
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/bin/bash
-
-# curl -fsSL https://ldsconnect.org/setup-osx.bash | bash -c
-IOJS_VER=${1}
-
-echo ""
-echo ""
-
-# XCode
-# testing for which git, gcc, etc will not work because the tools are aliased to the install script
-if [ -z "$(xcode-select --print-path 2>/dev/null)" ] || [ -z "$(git --version 2>/dev/null)" ]; then
-  echo "Hey You!!!"
-  echo ""
-  echo "A thingy is going to pop up and ask you to install 'command line developer tools' for 'xcode-select'"
-  echo ""
-  echo "You need to click Install. This installation should begin when that finishes."
-  echo "(if that box doesn't pop up in a second or two, something went wrong)"
-  echo "(note that it may pop up underneath this window, so check for it in the dock too)"
-  echo ""
-
-  xcode-select --install 2>/dev/null
-
-  while true; do
-    sleep 5
-
-    if [ -n "$(git --version 2>/dev/null)" ] && [ -n "$(xcode-select --print-path 2>/dev/null)" ]; then
-      break;
-    fi
-  done
-
-  echo "It looks like the other install is finishing up."
-  echo "This installation will begin in one minute."
-  sleep 60
-else
-  echo "XCode Command Line Tools already installed"
-fi
-
-# homebrew
-if [ -z "$(which brew | grep brew)" ]; then
-  echo "installing brew (homebrew)..."
-  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
-  brew doctor
-else
-  echo "updating brew..."
-  brew update >/dev/null 2>/dev/null
-fi
-
-if [ -z "$(which wget | grep wget)" ]; then
-  echo "installing wget..."
-  brew install wget
-else
-  echo "wget already installed"
-fi
-
-# http://www.fail2ban.org/wiki/index.php/HOWTO_Mac_OS_X_Server_(10.5)
-if [ -z "$(which fail2ban-server | grep fail2ban)" ]; then
-  clear
-  echo ""
-  echo "Your server didn't come with fail2ban preinstalled!!!"
-  echo "Among other things, fail2ban secures ssh so that your server isn't reaped by botnets."
-  echo ""
-  echo "Since you're obviosly connecting this computer to a network, you should install fail2ban before continuing"
-  echo ""
-  echo "Install fail2ban? [Y/n]"
-  echo "(if unsure, just hit [enter])"
-  read INSTALL_FAIL2BAN
-  if [ "n" == "${INSTALL_FAIL2BAN}" ] || [ "no" == "${INSTALL_FAIL2BAN}" ] || [ "N" == "${INSTALL_FAIL2BAN}" ] || [ "NO" == "${INSTALL_FAIL2BAN}" ]; then
-    clear
-    echo ""
-    echo "I don't think you understand. This is important."
-    echo ""
-    echo "Your server will be under constant attack by botnets via ssh."
-    echo "It only takes a few extra seconds to install and the defaults are adequate for protecting you."
-    echo ""
-    echo "Change your mind?"
-    echo "Ready to install fail2ban? [Y/n]"
-    read INSTALL_FAIL2BAN
-    if [ "n" == "${INSTALL_FAIL2BAN}" ] || [ "no" == "${INSTALL_FAIL2BAN}" ] || [ "N" == "${INSTALL_FAIL2BAN}" ] || [ "NO" == "${INSTALL_FAIL2BAN}" ]; then
-      clear
-      echo "you make me sad :-("
-      sleep 0.5
-      echo "but whatever, it's your funeral..."
-      sleep 1
-    else
-      echo "Phew, dodged the bullet on that one... Installing fail2ban.. :-)"
-      brew install fail2ban
-      sudo cp -fv /usr/local/opt/fail2ban/*.plist /Library/LaunchDaemons
-      sudo launchctl load /Library/LaunchDaemons/homebrew.mxcl.fail2ban.plist
-    fi
-  else
-    brew install fail2ban
-    sudo cp -fv /usr/local/opt/fail2ban/*.plist /Library/LaunchDaemons
-    sudo launchctl load /Library/LaunchDaemons/homebrew.mxcl.fail2ban.plist
-  fi
-fi
-
-if [ -z "$(which pkg-config | grep pkg-config)" ]; then
-  echo "installing pkg-config..."
-  brew install pkg-config
-else
-  echo "pkg-config already installed"
-fi
-
-# iojs
-if [ -n "$(which node | grep node 2>/dev/null)" ]; then
-  IOJS_VER=""
-  
-  if [ "$(node -v 2>/dev/null)" != "$(iojs -v 2>/dev/null)" ]; then
-    echo "You have node.js installed. Backing up $(which node) as $(which node).joyent"
-    echo "(you can move it back after the install if you want separate node.js and io.js installations)"
-    echo ""
-    echo sudo mv "$(which node)" "$(which node).joyent"
-    sudo mv "$(which node)" "$(which node).joyent"
-  fi
-  
-  if [ "${IOJS_VER}" == "$(iojs -v 2>/dev/null)" ]; then
-    echo iojs ${IOJS_VER} already installed
-  else
-    clear
-    echo ""
-    echo "HEY, LISTEN:"
-    echo "io.js is already installed as iojs $(iojs -v | grep v)"
-    echo ""
-    echo "to reinstall please first run: rm $(which iojs)"
-    echo ""
-  fi
-fi
-
-if [ -n "${IOJS_VER}" ]; then
-  echo "installing io.js as iojs ${IOJS_VER}..."
-  curl -fsSL "http://iojs.org/dist/${IOJS_VER}/iojs-${IOJS_VER}.pkg" -o "/tmp/iojs-${IOJS_VER}.pkg"
-  sudo /usr/sbin/installer -pkg "/tmp/iojs-${IOJS_VER}.pkg" -target /
-  sudo chown -R $(whoami) /usr/local 2>/dev/null
-fi
diff --git a/setup-ubuntu.bash b/setup-ubuntu.bash
deleted file mode 100644
index 6dddd56..0000000
--- a/setup-ubuntu.bash
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/bin/bash
-
-# curl -fsSL https://ldsconnect.org/setup-linux.bash | bash -c
-
-IOJS_VER=${1}
-
-echo ""
-echo ""
-
-echo "updating apt-get..."
-sudo bash -c "apt-get update -qq -y < /dev/null" > /dev/null
-
-# fail2ban
-if [ -z "$(which fail2ban-server | grep fail2ban)" ]; then
-  echo "installing fail2ban..."
-  sudo bash -c "apt-get install -qq -y fail2ban < /dev/null" > /dev/null
-fi
-
-# git, wget, curl, build-essential
-if [ -z "$(which pkg-config | grep pkg-config)" ] || [ -z "$(which git | grep git)" ] || [ -z "$(which wget | grep wget)" ] || [ -z "$(which curl | grep curl)" ] || [ -z "$(which gcc | grep gcc)" ] || [ -z "$(which rsync | grep rsync)" ]
-then
-  echo "installing git, wget, curl, build-essential, rsync, pkg-config..."
-  sudo bash -c "apt-get install -qq -y git wget curl build-essential rsync pkg-config < /dev/null" > /dev/null 2>/dev/null
-fi
-
-#
-# iojs  
-#
-if [ -n "$(which iojs | grep iojs 2>/dev/null)" ]; then
-# iojs of some version is already installed
-  if [ "${IOJS_VER}" == "$(iojs -v 2>/dev/null)" ]; then
-    echo iojs ${IOJS_VER} already installed
-    IOJS_VER=""
-  else
-    echo "HEY, LISTEN:"
-    echo ""
-    echo "io.js is already installed as iojs $(iojs -v | grep v)"
-    echo ""
-    echo "to reinstall please first run: rm $(which iojs)"
-    echo ""
-  fi
-elif [ "$(node -v 2>/dev/null)" != "$(iojs -v 2>/dev/null)" ]; then
-# node of some version is already installed
-  echo ""
-  echo "################################################################################"
-  echo ""
-  echo "HEY, LISTEN!"
-  echo ""
-  echo "You have node.js installed."
-  echo "Backing up $(which node) as $(which node).$(node -v)"
-  echo "(copy it back after the install if to maintain node.js and io.js separately)"
-  echo ""
-  echo sudo mv "$(which node)" "$(which node).$(node -v)"
-  sleep 3
-  sudo mv "$(which node)" "$(which node).$(node -v)"
-  echo "################################################################################"
-  echo ""
-fi
-
-if [ -n "${IOJS_VER}" ]; then
-  if [ -n "$(arch | grep 64)" ]; then
-    ARCH="x64"
-  else
-    ARCH="x86"
-  fi
-  echo "installing io.js as iojs ${IOJS_VER}..."
-  curl -fsSL "http://iojs.org/dist/${IOJS_VER}/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz" \
-    -o "/tmp/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz"
-  pushd /tmp
-  tar xf /tmp/iojs-${IOJS_VER}-linux-${ARCH}.tar.gz
-  rm iojs-${IOJS_VER}-linux-x64/{LICENSE,CHANGELOG.md,README.md}
-  sudo rsync -a "/tmp/iojs-${IOJS_VER}-linux-${ARCH}/" /usr/local/
-  sudo chown -R $(whoami) /usr/local
-fi
diff --git a/setup.bash b/setup.bash
index ed23560..f30d9e0 100644
--- a/setup.bash
+++ b/setup.bash
@@ -10,24 +10,19 @@
 # wget -nv https://example.com/setup.bash -O - | bash
 
 BASE_URL="https://raw.githubusercontent.com/coolaj86/iojs-install-script/master"
-
-if [ -n "$(which iojs 2>/dev/null || false)" ]; then
-  echo ""
-  echo "HEY, LISTEN:"
-  echo "io.js is already install as iojs $(iojs -v | grep v)"
-  echo ""
-  echo "to reinstall please first run: rm $(which iojs)"
-  echo ""
-fi
-
-if [ -f "/tmp/IOJS_VER" ]; then
-  IOJS_VER=$(cat /tmp/IOJS_VER | grep v)
-fi
-if [ -z "$IOJS_VER" ]; then
-  IOJS_VER="v1.0.1"
-fi
+NO_FAIL2BAN=""
 OS="unsupported"
 ARCH=""
+IOJS_VER=""
+SETUP_FILE=""
+
+clear
+
+
+
+#########################
+# Which OS and version? #
+#########################
 
 if [ "$(uname | grep -i 'Darwin')" ]; then
   OSX_VER="$(sw_vers | grep ProductVersion | cut -d':' -f2 | cut -f2)"
@@ -81,9 +76,7 @@ if [ "$(uname | grep -i 'Darwin')" ]; then
   else
     ARCH="32"
   fi
-
 elif [ "$(uname | grep -i 'Linux')" ]; then
-
   if [ ! -f "/etc/issue" ]; then
     echo "unsupported linux os"
     exit 1
@@ -100,40 +93,37 @@ elif [ "$(uname | grep -i 'Linux')" ]; then
   elif [ "$(cat /etc/issue | grep -i 'Fedora')" ]; then
     OS='fedora'
   fi
-
 else
-
   echo "unsupported unknown os (non-mac, non-linux)"
   exit 1
-
 fi
 
 case "${OS}" in
   fedora)
-    echo "sudo yum"
-    echo "wget --quiet ${BASE_URL}/setup-fedora.bash -O /tmp/install-iojs.bash || echo 'error downloading os setup script'"
+    echo "FEDORA not yet supported (feel free to pull request)"
+    exit 1
     ;;
   ubuntu)
-    wget --quiet "${BASE_URL}/setup-ubuntu.bash" -O /tmp/install-iojs.bash || echo 'error downloading os setup script'
+    SETUP_FILE="ubuntu"
     ;;
   yosemite)
     # mavericks
-    curl --silent "${BASE_URL}/setup-mavericks.bash" -o /tmp/install-iojs.bash || echo 'error downloading os setup script'
+    SETUP_FILE="mavericks"
     ;;
   mavericks)
-    curl --silent "${BASE_URL}/setup-mavericks.bash" -o /tmp/install-iojs.bash || echo 'error downloading os setup script'
+    SETUP_FILE="mavericks"
     ;;
   mountain)
-    echo "wget cltools"
-    echo "curl --silent ${BASE_URL}/setup-mountain.bash -o /tmp/install-iojs.bash || echo 'error downloading os setup script'"
+    echo "Mountain Lion not yet supported (feel free to pull request)"
+    exit 1
     ;;
   lion)
-    echo "wget cltools"
-    echo "curl --silent ${BASE_URL}/setup-lion.bash -o /tmp/install-iojs.bash || echo 'error downloading os setup script'"
+    echo "Lion not yet supported (feel free to pull request)"
+    exit 1
     ;;
   snow)
-    echo "wget gcc-0.6.pkg"
-    echo "curl --silent ${BASE_URL}/setup-snow.bash -o /tmp/install-iojs.bash || echo 'error downloading os setup script'"
+    echo "Snow Leopard not yet supported (feel free to pull request)"
+    exit 1
     ;;
   *)
     echo "unsupported unknown os ${OS}"
@@ -141,8 +131,132 @@ case "${OS}" in
     ;;
 esac
 
+
+
+
+#######################
+# Download installers #
+#######################
+
 echo "${OS}" "${ARCH}"
-bash /tmp/install-iojs.bash "${IOJS_VER}"
+
+if [ -n "$(which curl)" ]; then
+  curl --silent "${BASE_URL}/setup-deps-${SETUP_FILE}.bash" \
+    -o /tmp/install-iojs-deps.bash || echo 'error downloading os setup script'
+  curl --silent "${BASE_URL}/setup-iojs-${SETUP_FILE}.bash" \
+    -o /tmp/install-iojs.bash || echo 'error downloading os setup script'
+elif [ -n "$(which wget)" ]; then
+  wget --quiet "${BASE_URL}/setup-deps-${SETUP_FILE}.bash" \
+    -O /tmp/install-iojs-deps.bash || echo 'error downloading os setup script'
+  wget --quiet "${BASE_URL}/setup-iojs-${SETUP_FILE}.bash" \
+    -O /tmp/install-iojs.bash || echo 'error downloading os setup script'
+else
+  echo "Found neither 'curl' nor 'wget'. Can't Continue."
+  exit 1
+fi
+
+
+
+
+################
+# DEPENDENCIES #
+################
+
+if [ -z "$(which fail2ban-server | grep fail2ban)" ]; then
+  echo ""
+  echo "Your server didn't come with fail2ban preinstalled!!!"
+  echo "Among other things, fail2ban secures ssh so that your server isn't reaped by botnets."
+  echo ""
+  echo "Since you're obviosly connecting this computer to a network, you should install fail2ban before continuing"
+  echo ""
+  echo "Install fail2ban? [Y/n]"
+  echo "(if unsure, just hit [enter])"
+  read INSTALL_FAIL2BAN
+
+  if [ "n" == "${INSTALL_FAIL2BAN}" ] || [ "no" == "${INSTALL_FAIL2BAN}" ] || [ "N" == "${INSTALL_FAIL2BAN}" ] || [ "NO" == "${INSTALL_FAIL2BAN}" ]; then
+    echo ""
+    echo "I don't think you understand: This is important."
+    echo ""
+    echo "Your server will be under constant attack by botnets via ssh."
+    echo "It only takes a few extra seconds to install and the defaults are adequate for protecting you."
+    echo ""
+    echo "Change your mind?"
+    echo "Ready to install fail2ban? [Y/n]"
+    read INSTALL_FAIL2BAN
+    if [ "n" == "${INSTALL_FAIL2BAN}" ] || [ "no" == "${INSTALL_FAIL2BAN}" ] || [ "N" == "${INSTALL_FAIL2BAN}" ] || [ "NO" == "${INSTALL_FAIL2BAN}" ]; then
+      clear
+      echo "you make me sad :-("
+      sleep 0.5
+      echo "but whatever, it's your funeral..."
+      sleep 1
+      NO_FAIL2BAN="nope"
+    else
+      echo "Phew, dodged the bullet on that one... Will install fail2ban.. :-)"
+    fi
+  fi
+fi
+
+bash /tmp/install-iojs-deps.bash "${NO_FAIL2BAN}"
+
+#########################
+# Which io.js VERSION ? #
+#########################
+
+if [ -f "/tmp/IOJS_VER" ]; then
+  IOJS_VER=$(cat /tmp/IOJS_VER | grep v)
+fi
+
+if [ -z "$IOJS_VER" ]; then
+  IOJS_VER="v1.0.1"
+fi
+
+if [ -n "$(which iojs 2>/dev/null || false)" ]; then
+  echo ""
+  echo "HEY, LISTEN:"
+  echo "io.js is already install as iojs $(iojs -v | grep v)"
+  echo ""
+  echo "to reinstall please first run:"
+  echo "sudo mv '$(which iojs)' '$(which iojs).$(iojs -v)'"
+  echo ""
+fi
+
+#
+# iojs  
+#
+if [ -n "$(which iojs | grep iojs 2>/dev/null)" ]; then
+# iojs of some version is already installed
+  if [ "${IOJS_VER}" == "$(iojs -v 2>/dev/null)" ]; then
+    echo iojs ${IOJS_VER} already installed
+  else
+    echo "HEY, LISTEN:"
+    echo ""
+    echo "io.js is already installed as iojs $(iojs -v | grep v)"
+    echo ""
+    echo "to reinstall please first run: rm $(which iojs)"
+    echo ""
+  fi
+  IOJS_VER=""
+elif [ "$(node -v 2>/dev/null)" != "$(iojs -v 2>/dev/null)" ]; then
+# node of some version is already installed
+  echo ""
+  echo "################################################################################"
+  echo ""
+  echo "HEY, LISTEN!"
+  echo ""
+  echo "You have node.js installed."
+  echo "Backing up $(which node) as $(which node).$(node -v)"
+  echo "(copy it back after the install if to maintain node.js and io.js separately)"
+  echo ""
+  echo sudo mv "$(which node)" "$(which node).$(node -v)"
+  sleep 3
+  sudo mv "$(which node)" "$(which node).$(node -v)"
+  echo "################################################################################"
+  echo ""
+fi
+
+if [ -n "${IOJS_VER}" ]; then
+  bash /tmp/install-iojs.bash "${IOJS_VER}"
+fi
 
 # jshint
 if [ -z "$(which jshint | grep jshint)" ]; then