[lib] Install Node.js and npm via Homebrew on OS X

Now that the `npm` related issue (see: Homebrew/legacy-homebrew#27479) has been
fixed (see: Homebrew/legacy-homebrew#28075), revert back to using `Homebrew` to
install `Node.js` and `npm` on OS X.

lib/dotfiles

@@ -32,7 +32,7 @@ declare -a NEW_DIRECTORIES=(
     "$HOME/server"
 )
 
-declare -a NODE_PACKAGES=(
+declare -a NPM_PACKAGES=(
     "jshint"
 )
 
@@ -319,18 +319,18 @@ install_apps() {
         install_applications
 
         printf "\n"
-        install_node_packages
+        install_npm_packages
 
     fi
 }
 
-install_node_packages() {
+install_npm_packages() {
 
     # Make sure the most recent version of npm is installed
-    sudo npm install -q -g npm &> /dev/null
+    npm install -q -g npm &> /dev/null
     print_result $? "npm [update]"
 
-    for i in ${NODE_PACKAGES[@]}; do
+    for i in ${NPM_PACKAGES[@]}; do
         execute "npm install -g $i" "$i"
     done
 }

lib/osx/install_applications.sh

@@ -7,6 +7,7 @@ declare -a HOMEBREW_FORMULAE=(
     "git"
     "imagemagick --with-webp"
     "caskroom/cask/brew-cask"
+    "node"
     "vim --override-system-vi"
     "zopfli"
 )
@@ -61,32 +62,6 @@ install_applications() {
     print_success "XCode Command Line Tools"
     printf "\n"
 
-    # Install Node.js (and npm)
-    if [ $(cmd_exists "node") -eq 1 ]; then
-
-        # Get the name of the `.pkg` file containing the latest Node.js version
-        tmp="$(curl -sSL http://nodejs.org/dist/latest | sed -n 's/.*href="\(.*pkg\)".*/\1/p')"
-
-        # Download `.pkg` file
-        $(curl -sSL "http://nodejs.org/dist/latest/$tmp" -o /tmp/$tmp)
-
-        if [ $? -eq 0 ]; then
-            print_success "Download '$tmp'"
-
-            # Open the `.pkg` file
-            open "/tmp/$tmp"
-
-            # Wait for Node.js to be installed
-            while [ $(cmd_exists "node") -eq 1 ]; do
-                sleep 5;
-            done
-
-            print_success "Node.js and npm"
-        else
-            print_error "Download '$tmp'"
-        fi
-    fi
-
     # Homebrew
     if [ $(cmd_exists "brew") -eq 1 ]; then
         printf '\n' | ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"