Added support for installing node with a tarball.

bin/n

@@ -58,6 +58,7 @@ display_help() {
     n                           Output versions installed
     n latest [config ...]       Install or activate the latest node release
     n <version> [config ...]    Install and/or use node <version>
+    n custom <version> [config ...]    Install custom node <version> <tarball> with [args ...]
     n use <version> [args ...]  Execute node <version> with [args ...]
     n npm <version> [args ...]  Execute npm <version> with [args ...]
     n bin <version>             Output bin path for <version>
@@ -180,6 +181,68 @@ install_node() {
   fi
 }
 
+#
+# Install custom node <version> tarball [config ...]
+#
+
+install_custom_node() {
+  local version=$1
+  local url=$2; shift 2
+  local config=$@
+  check_current_version
+
+  # remove "v"
+  version=${version#v}
+
+  echo "attempting to install $version |  $url | $config"
+
+  # activate
+  local dir=$VERSIONS_DIR/$version
+  if test -d $dir; then
+    # TODO: refactor, this is lame
+    cd $dir \
+      && mkdir -p $N_PREFIX/lib/node \
+      && cp -fr $dir/include/node $N_PREFIX/include \
+      && cp -f $dir/bin/node $N_PREFIX/bin/node \
+      && cp -f $dir/bin/node-waf $N_PREFIX/bin/node-waf \
+      && cp -fr $dir/lib/node/* $N_PREFIX/lib/node/.
+  # install
+  else
+    local tarball="node-v$version.tar.gz"
+    local logpath="/tmp/n.log"
+
+    echo "tarball $tarball"
+
+    # create build directory
+    mkdir -p $N_PREFIX/n/node-v$version
+
+    # fetch and unpack
+    cd $N_PREFIX/n/node-v$version \
+      && $GET $url | tar xz --strip-components=1 > $logpath 2>&1
+
+    # see if things are alright
+    if test $? -gt 0; then
+      rm $tarball
+      echo "\033[31mError: installation failed\033[0m"
+      echo "  node version $version does not exist,"
+      echo "  n failed to fetch the tarball,"
+      echo "  or tar failed. Try a different"
+      echo "  version or view $logpath to view"
+      echo "  error details."
+      exit 1
+    fi
+
+    cd "$N_PREFIX/n/node-v$version" \
+      && ./configure --prefix $VERSIONS_DIR/$version $config\
+      && JOBS=4 make install \
+      && cd .. \
+      && cleanup $version \
+      && mkdir -p $dir \
+      && echo $config > "$dir/.config" \
+      && n $version
+  fi
+}
+
 #
 # Cleanup after the given <version>
 #
@@ -317,6 +380,7 @@ else
       rm|-) remove_version $2; exit ;;
       latest) install_node `n --latest`; exit ;;
       ls|list) list_versions $2; exit ;;
+      c|custom) shift; install_custom_node $@; exit ;;
       *) install_node $@; exit ;;
     esac
     shift