Allow use of node from packages

Change-Id: I4718d0b64f553db3453c1b80c0ea455cf1f685bc

bin/bootstrap.sh

@@ -19,10 +19,23 @@ rm -fr $workspace_path/.local/
 rm -fr $workspace_path/.build/
 
 # Create our working directories
-mkdir -p $workspace_path/.local/
+mkdir -p $workspace_path/.local/bin/
 mkdir -p $workspace_path/.build/
 mkdir -p ~/.cache/storyboard
 
+if hash nodejs 2>/dev/null && ! hash node 2>/dev/null; then
+    ln -s `which nodejs` $workspace_path/.local/bin/node
+fi
+
+# If we have npm already, there is no need to download/compile
+if hash npm 2>/dev/null; then
+    # Also, it needs to be new enough - that is, newer than v1 or v1.2
+    # or v1.2.18. This could almost certainly be improved in some way
+    if test "$( npm --version | awk -F'.' ' ( $1 > 1 || ( $1 == 1 && $2 > 2 ) || ( $1 == 1 && $2 == 2 && $3 >= 18 ) ) ' )" ; then
+        exit 0
+    fi
+fi
+
 # Download the source if we don't have it already.
 if [ ! -f $node_archive_path ]; then
     echo "Downloading Node v$node_version..."

bin/build.sh

@@ -5,15 +5,8 @@
 VDISPLAY=99
 DIMENSIONS='1280x1024x24'
 XVFB=/usr/bin/Xvfb
-BIN_DIR="$( cd "$( dirname "$0" )" && pwd )"
-WORKSPACE="$(dirname "$BIN_DIR")"
-
-# Add our new bin directory to the PATH
-echo "Adding $WORKSPACE/.local/bin to PATH"
-export PATH=$WORKSPACE/.local/bin:$PATH
-echo "Adding $WORKSPACE/node_modules/.bin to PATH"
-export PATH=$WORKSPACE/node_modules/.bin:$PATH
 
+source $(dirname $0)/setenv.sh
 cd $WORKSPACE;
 
 echo "Installing build dependencies"
@@ -35,4 +28,4 @@ result=$?
 pkill Xvfb 2>&1 > /dev/null
 set -e
 
-exit $result
+exit $result

bin/setenv.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+BIN_DIR="$( cd "$( dirname "$0" )" && pwd )"
+WORKSPACE="$(dirname "$BIN_DIR")"
+
+# Add our new bin directory to the PATH
+echo "Adding $WORKSPACE/.local/bin to PATH"
+export PATH=$WORKSPACE/.local/bin:$PATH
+echo "Adding $WORKSPACE/node_modules/.bin to PATH"
+export PATH=$WORKSPACE/node_modules/.bin:$PATH