Add release.sh script

Author: kare

release.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+set -eu -o pipefail
+
+function usage() {
+	echo "Usage: release.sh [-h] semver" 1>&2
+	echo "	-h Show help" 1>&2
+	echo "Example: release.sh 0.2.7" 1>&2
+}
+
+SEMVER_REGEX="^(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(\\-[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?(\\+[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?$"
+function validate_version {
+	local version=$1
+	if ! [[ "$version" =~ $SEMVER_REGEX ]]; then
+		echo "version $version does not match the semver scheme 'X.Y.Z(-PRERELEASE)(+BUILD)'. See help for more information." 1>&2
+		exit 1
+	fi
+}
+
+while getopts "h" arg; do
+	case $arg in
+	h|*) # Show help
+		usage
+		exit 1
+	;;
+	esac
+done
+
+version="${1-}"
+if [ -z "$version" ]; then
+	usage
+	exit 1
+fi
+
+validate_version "$version"
+
+git commit --allow-empty --message="Release v$version"
+git tag "v$version"
+git push
+git push --tags