() add changelog prepender and template

changelog_templater/CHANGELOG.template.md

@@ -0,0 +1,122 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [3.X.X] - Month, XX, 202X
+
+### React
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?
+
+### Core
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?
+
+### Documentation
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?
+
+### Figma
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?
+
+### Sketch/Abstract
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?
+
+### Hds-js
+
+#### Breaking
+
+- [Component] What are the breaking changes?
+
+#### Added
+
+- [Component] What is added?
+
+#### Changed
+
+Changes that are not related to specific components
+- [Component] What has been changed
+
+#### Fixed
+
+- [Component] What bugs/typos are fixed?

changelog_templater/changelog_templater.js

@@ -0,0 +1,16 @@
+/**
+ * This takes the CHANGELOG.md and prepends the CHANGELOG.template.md to it.
+ */
+
+const fs = require('fs');
+const changeLogFile = './CHANGELOG.md';
+
+const old = fs.readFileSync(changeLogFile, 'utf8');
+const template = fs.readFileSync('./changelog_templater/CHANGELOG.template.md', 'utf8');
+
+// this get the index of the latest version in the changelog
+const indexOfLastVersion = old.indexOf('## [');
+const oldWithoutStart = old.slice(indexOfLastVersion);
+const changeLogWithTemplate = template + "\n" + oldWithoutStart;
+
+fs.writeFileSync(changeLogFile, changeLogWithTemplate);

package.json

@@ -17,7 +17,8 @@
     "start:core": "lerna run --scope hds-core start",
     "start:react": "lerna run --scope hds-react start",
     "release": "lerna publish from-package --yes",
-    "update-versions": "lerna version --exact --no-git-tag-version --no-push --amend --yes"
+    "update-versions": "lerna version --exact --no-git-tag-version --no-push --amend --yes",
+    "changelog_templater": "node ./changelog_templater/changelog_templater.js"
   },
   "devDependencies": {
     "lerna": "^7.0.1",