Check-in tag-release script

Author: ryu1kn

.npmignore

@@ -9,6 +9,7 @@
 /.travis.yml
 /.vscode
 /coverage
+/tag-release.sh
 /test/.eslintrc.yaml
 /test/integration
 __*

tag-release.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+RELEASE_VER=$(node -p 'JSON.parse(require("fs").readFileSync("./package.json", "utf8")).version')
+
+GIT_TAG_NAME=v$RELEASE_VER
+git tag -a $GIT_TAG_NAME -m $GIT_TAG_NAME
+git push origin $GIT_TAG_NAME