Add build helpers and improve configuration example.

scripts/build.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# This script is using for building release binaries.
+
+OSES=("darwin" "linux" "windows")
+ARCHES=("amd64" "arm64")
+
+GO=$(which go)
+if [ "${GO}" == "" ]; then
+	echo "Golang is not installed, cannot continue"
+fi
+
+if [ ! -d "release" ]; then
+	mkdir -p release
+fi
+
+for OS in "${OSES[@]}"; do
+	for ARCH in "${ARCHES[@]}"; do
+		echo "Building for ${OS} ${ARCH}..."
+		CGO_ENABLED=0 GOOS=${OS} GOARCH=${ARCH} go build -o release/periodicator-${OS}-${ARCH} .
+	done
+done
+
+for file in release/*windows*; do
+	mv ${file} ${file}.exe
+done
+
+for file in release/*; do
+	zip -m ${file}.zip ${file}
+done

scripts/get_version.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+# This is a branch helper script that can be used to determine what we're using
+# or deploying.
+# Defaulting to version 0.1.0 if we can't get version in any other way.
+
+# We might already have version file (e.g. this script was launched with "generate"
+# parameter when building a Docker image). In that case - just output it.
+if [ -f "version" ]; then
+	cat version
+	exit 0
+fi
+
+DELIMITER=" "
+VERSION="0.1.0"
+
+# Try to get last available version tag. This tag will replace version if found.
+TAG=$(git tag | tail -n 1)
+if [ "${TAG}" != "" ]; then
+	VERSION="${TAG}"
+fi
+
+# We should figure out should we add branch or not. For that we should take
+# last commit hash and last tag hash for comparison. We should add branch
+# name only if hashes aren't same.
+LAST_COMMIT_HASH=$(git log --format="%h" 2>/dev/null | head -n 1)
+LAST_TAG_COMMIT_HASH=$(git log "${TAG}" --format="%h" 2>/dev/null | head -n 1)
+if [ "${LAST_COMMIT_HASH}" != "${LAST_TAG_COMMIT_HASH}" ]; then
+	VERSION+="${DELIMITER}$(git branch | grep "*" | awk {' print $2 '})"
+fi
+
+# Add commit hash.
+VERSION+="${DELIMITER}${LAST_COMMIT_HASH}"
+
+# Add build date.
+VERSION+="${DELIMITER}$(date +'%Y%m%d-%H%M')"
+
+case $1 in
+	generate)
+		echo "${VERSION}" > version
+	;;
+	*)
+		echo "${VERSION}"
+	;;
+esac