Configure publishing workflow (#34)

* add and init changesets

* add release workflow

* extract node version into env var

Author: lopert

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/config@3.1.1/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.github/workflows/release.yml

@@ -0,0 +1,55 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+env:
+  NODE_VERSION: '20.x'
+  PNPM_VERSION: '10.20.0'
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: ${{ env.PNPM_VERSION }}
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Create Release Pull Request or Publish to npm
+        id: changesets
+        uses: changesets/action@v1
+        with:
+          publish: pnpm release
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -14,6 +14,9 @@
   "files": [
     "dist/"
   ],
+  "publishConfig": {
+    "access": "public"
+  },
   "scripts": {
     "build": "tsc",
     "test": "vitest run",
@@ -22,13 +25,15 @@
     "test:examples": "pnpm --filter cart-validation-js-tests test && pnpm --filter discount-function-rs-tests test",
     "lint": "eslint src/ test/",
     "lint:fix": "eslint src/ test/ --fix",
-    "prepublishOnly": "pnpm run build && pnpm run test && pnpm run lint"
+    "prepublishOnly": "pnpm run build && pnpm run test && pnpm run lint",
+    "release": "pnpm run build && changeset publish"
   },
   "dependencies": {
     "core-js": "^3.46.0",
     "graphql": "^16.11.0"
   },
   "devDependencies": {
+    "@changesets/cli": "^2.29.7",
     "@shopify/eslint-plugin": "^50.0.0",
     "@types/node": "^22.18.6",
     "@typescript-eslint/eslint-plugin": "^8.46.2",