Added script to simplyfy making new releases

.dockerignore

@@ -1 +1,3 @@
 artifacts/
+target/
+toolkit_tarballs/

release.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+VER=6.2
+ARCHS=(
+    "apollolake"
+    "armada38x"
+    "avoton"
+    "braswell"
+    "broadwell"
+    "cedarview"
+    "denverton"
+    "rtd1296"
+    "x64"
+)
+
+set -e
+
+# Check that we are running as root
+if [ `id -u` -ne 0 ]; then
+    echo "This script must be run as root"
+    exit 1
+fi
+
+# Create release directory if needed
+if [ ! -d target/ ]; then
+    mkdir target/
+fi
+
+# Download all necessary tarballs before calling into the docker containers.
+echo "Downloading environment tarballs"
+url_base="https://sourceforge.net/projects/dsgpl/files/toolkit/DSM$VER"
+pushd toolkit_tarballs/
+if [ ! -f base_env-$VER.txz ]; then
+    wget -q --show-progress "$url_base/base_env-$VER.txz"
+fi
+for arch in ${ARCHS[@]}; do
+    if [ ! -f ds.$arch-$VER.dev.txz ]; then
+        wget -q --show-progress "$url_base/ds.$arch-$VER.dev.txz"
+    fi
+    if [ ! -f ds.$arch-$VER.env.txz ]; then
+        wget -q --show-progress "$url_base/ds.$arch-$VER.env.txz"
+    fi
+done
+popd
+
+# Ensure that we are using an up to date docker image
+docker build -t synobuild .
+
+for arch in ${ARCHS[@]}; do
+    echo "Building '$arch'"
+
+    # Remove old artifact directory
+    if [ -d artifacts/ ]; then
+        rm -rf artifacts/
+    fi
+
+    docker run \
+        --rm \
+        --privileged \
+        --env PACKAGE_ARCH=$arch \
+        --env DSM_VER=6.2 \
+        -v $(pwd)/artifacts:/result_spk \
+        -v $(pwd)/toolkit_tarballs:/toolkit_tarballs \
+        synobuild
+
+    mv artifacts/WireGuard-*/* target/
+done
+
+# Clean up artifact directory
+if [ -d artifacts/ ]; then
+    rm -rf artifacts/
+fi
+
+# Change permissions of the target directory to match the local user if called
+# using sudo
+if [ ! -z ${SUDO_USER+x} ]; then
+    chown "$SUDO_USER:$SUDO_USER" -R target/
+fi