Added script to build and/or download dependencies.

Requires git and only tested on Ubuntu Linux 14.04.

README.md

@@ -24,6 +24,10 @@ and [lockfile](https://pypi.python.org/pypi/lockfile) to be placed in
 `blender_cloud/wheels`, or installed somewhere where Blender can find
 them.
 
+The above requirements can be downloaded and built automatically
+by running the `build-dependency-wheels.sh` script. Only tested on
+Ubuntu Linux 14.04.
+
 The addon requires HTTPS connections, and thus is dependent on
 [D1845](https://developer.blender.org/D1845). You can do either of
 these:

build-dependency-wheels.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+MYDIR=$(dirname $(readlink -f $0))
+WHEELS=$MYDIR/blender_cloud/wheels
+cd $MYDIR
+
+PILLAR_SDK_DIR=$MYDIR/../pillar-python-sdk
+CACHECONTROL_DIR=$MYDIR/../cachecontrol
+
+# Build the Pillar Python SDK wheel from ../pillar-python-sdk
+if [ ! -e $WHEELS/lockfile*.whl ]; then
+    echo "Building pillar_sdk wheel"
+    if [ ! -e $PILLAR_SDK_DIR ]; then
+        cd $(dirname $PILLAR_SDK_DIR)
+        git clone https://github.com/armadillica/pillar-python-sdk.git $PILLAR_SDK_DIR
+    fi
+
+    cd $PILLAR_SDK_DIR
+    python setup.py bdist_wheel
+    cp $(ls dist/*.whl -rt | tail -n 1) $WHEELS
+fi
+
+# Download lockfile wheel
+if [ ! -e $WHEELS/lockfile*.whl ]; then
+    echo "Downloading lockfile"
+    pip download --dest $WHEELS $(grep -i lockfile $MYDIR/requirements.txt)
+fi
+
+# Build CacheControl wheel
+if [ ! -e $WHEELS/CacheControl*.whl ]; then
+    echo "Building CacheControl wheel"
+    if [ ! -e $CACHECONTROL_DIR ]; then
+        cd $(dirname $CACHECONTROL_DIR)
+        git clone https://github.com/ionrock/cachecontrol.git $CACHECONTROL_DIR
+        cd $CACHECONTROL_DIR
+        git checkout v0.11.6  # TODO: get from requirements.txt
+    fi
+
+    cd $CACHECONTROL_DIR
+    rm -f dist/*.whl
+    python setup.py bdist_wheel
+    cp $(ls dist/*.whl -rt | tail -n 1) $WHEELS
+fi
+