Support custom SDKs and use yarn

scripts/docker-link-repos.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+set -ex
+
+if [ $USE_CUSTOM_SDKS == false ]
+then
+    echo "skipping react-sdk and js-sdk installs: USE_CUSTOM_SDKS is false"
+    exit 0
+fi
+
+echo "Linking js-sdk"
+git clone $JS_SDK_REPO js-sdk
+cd js-sdk
+git checkout $JS_SDK_BRANCH
+yarn link
+yarn install
+cd ../
+
+echo "Linking react-sdk"
+git clone $REACT_SDK_REPO react-sdk
+cd react-sdk
+git checkout $REACT_SDK_BRANCH
+yarn link
+yarn link matrix-js-sdk
+yarn install
+cd ../
+
+echo "Setting up riot-web with react-sdk and js-sdk packages"
+yarn link matrix-js-sdk
+yarn link matrix-react-sdk