Add GitHub Workflow to automate release generation (#89)

* Set up release gh workflow

* Update CONTRIBUTING guide

* Change the artifact name

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - v*
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - name: Check out source code
+        uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.x'
+      - name: Install dependencies
+        run: npm install
+      - name: Build & archive
+        run: |
+          set -x
+          VERSION="${GITHUB_REF##*/}"
+          npm run webpack && tar -zcf "k6-jslib-aws-${VERSION}.tar.gz" -C build .
+      - name: Create release with assets
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -x
+          VERSION="${GITHUB_REF##*/}"
+          gh release create "${VERSION}" "k6-jslib-aws-${VERSION}.tar.gz" "build/*" --target "${GITHUB_SHA}" --title "${VERSION}"

CONTRIBUTING.md

@@ -52,20 +52,18 @@ In a PR:
 1. Bump the version in the `package.json` file.
 2. Run the `npm update` command to update the `package-lock.json` file.
 3. Run the `npm run webpack` command to ensure the build system produces the latest distributable files.
-4. Search and replace every occurences of the previous version in the `README.md` file with the new version.
-5. Search and replace every occurences of the previous version in the `/examples` directory with the new version.
+4. Search and replace every occurrence of the previous version in the `README.md` file with the new version.
+5. Search and replace every occurrence of the previous version in the `/examples` directory with the new version.
 
 ### Create a tag and GitHub version
 
 1. Tag the latest main branch's commit with the new version, following the [semantic versioning](https://semver.org/) convention, prefixed with a `v` character, as in: `v0.7.1`.
-2. Create a dedicated GitHub version:
-    1. Pointing to the tag created above
-    2. Using the same name as the tag created above
-    3. Including the build files included in the commit tagged above
+2. The [release.yml](.github/workflows/release.yml) workflow will automatically create a GitHub release with the new version.
 
 ### Publishing the new version
 
-1. Open a PR on the [jslib repository](https://github.com/grafana/jslib.k6.io) using the `build/` directory files following the [new version instructions](https://github.com/grafana/jslib.k6.io#updating-a-version-of-a-js-package-listed-in-packagejson-dependencies).
+1. Open a PR on the [jslib repository](https://github.com/grafana/jslib.k6.io) using the files from the [latest release](https://github.com/grafana/k6-jslib-aws/releases),
+and following the [new version instructions](https://github.com/grafana/jslib.k6.io#updating-a-version-of-a-js-package-listed-in-packagejson-dependencies).
 2. Make sure the k6 documentation website is updated to include the new version of the library:
     1. The documented API should reflect the new version.
     2. All the links to the library should point to the new version.