add release generator script

docker/scripts/release.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -e
+
+echo "Installing Composer packages..."
+composer create-project --no-dev
+
+echo "Installing NPM packages..."
+(cd multi && npm install)
+
+echo "Installing Yarn packages..."
+(cd public/static && yarn install)
+
+echo "Updating version info..."
+VERSION=$(git describe --tags --always --match "Release_*" HEAD)
+REVISION=$(git rev-parse --short HEAD)
+REVISION_DATE=$(git show -s --format=%aI HEAD)
+sed -i -E "s/const VERSION = '(.*)';/const VERSION = '${VERSION}';/" main.php
+sed -i -E "s/const REVISION = '(.*)';/const REVISION = '${REVISION}';/" main.php
+sed -i -E "s/const REVISION_DATE = '(.*)';/const REVISION_DATE = '${REVISION_DATE}';/" main.php
+
+echo "Minifying JS, CSS and SVG files..."
+find public/static/js -type f -iname '*.js' -exec uglifyjs {} -c -m -o {} \;
+find public/static/css -type f -iname '*.css' -exec cleancss {} -o {} \;
+find public/static/img -type f -iname '*.svg' -exec svgo {} -o {} \;
+
+echo "Linking view files..."
+./mapg view:link
+
+rm .env