add release automation

Author: Mic92

scripts/create-release.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+set -eu -o pipefail
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+cd $SCRIPT_DIR/..
+
+version=${1:-}
+if [[ -z "$version" ]]; then
+    echo "USAGE: $0 version" 2>/dev/null
+    exit 1
+fi
+
+if [[ "$(git symbolic-ref --short HEAD)" != "master" ]]; then
+    echo "must be on master branch" 2>/dev/null
+    exit 1
+fi
+
+sed -i -e "s!version = \".*\"!version = \"${version}\"!" Cargo.toml
+cargo build
+git add Cargo.toml Cargo.lock
+git commit -m "bump version ${version}"
+git tag -e "${version}"
+
+echo 'now run `git push --tags origin master`'