scripts/before_deploy: script to prepare builds in travis

Author: puuu

scripts/before_deploy

@@ -0,0 +1,17 @@
+#!/bin/sh
+# Project home: https://github.com/puuu/MQTT433gateway/
+# Script to prepare MQTT433gateway binaries for deploying
+# Copyright (c) 2018 Puuu
+# Permission to copy and modify is granted under the MIT license
+
+# Skipping non-tagged commit
+[ -z "$(git tag --contains)" ] && exit 0
+
+VERSION=$(git describe --abbrev=8 --dirty --always --tags)
+
+echo "Preparing release for tagged version: $VERSION"
+
+for file in .pioenvs/*/firmware.bin; do
+  env=$(echo "$file" | cut -f2 -d'/')
+  cp "$file" "dist/mqtt433gateway_${env}-${VERSION}.bin"
+done