NodeJS installer

nodejs-installer

#!/bin/bash -e

NODE_ARCHIVE_REPOSITORY=http://nodejs.org/dist/latest/

# Move to a temp directory
BUILD_DIR=$(mktemp -t -d "nodejs-installer.XXXXX")
cd $BUILD_DIR

archive=$(curl "${NODE_ARCHIVE_REPOSITORY}SHASUMS.txt" 2>/dev/null | egrep "node-v[0-9.]*.tar.gz" | cut -f3 -d" ")
download_archive="$NODE_ARCHIVE_REPOSITORY$archive"
directory=${archive%.tar.gz}
version=${directory#node-}

installed_version=$(node --version)
if [ $installed_version = $version ]; then
  echo "${version} already installed, aborting..."
  exit 1
else
  echo "Installed: ${installed_version}"
  echo "Lastest:   ${version}"
  echo ""
  echo "About to installing new version..."
fi

# Require root privilegies right now to have it at install (final step)
sudo ls > /dev/null

echo "Downloading"
wget "$download_archive"
tar -zxf $archive

echo "Start building node $version"
cd $directory
./configure
make
sudo make install

echo "$directory successfully installed"