add changesets to 17.x.x alpha

.changeset/README.md

@@ -0,0 +1,14 @@
+# Changesets in graphql-js
+
+This repo uses Changesets to manage version bumps and release PR automation.
+
+## Contributor flow
+
+1. Add a changeset file when the PR should affect a published package:
+   - `npm run changeset`
+   - Choose `patch`, `minor`, or `major` for `graphql`
+2. Commit the generated `.changeset/*.md` file.
+
+## Release lines
+
+Changesets automation is currently enabled only on `17.x.x`.

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/config@3.0.0/schema.json",
+  "changelog": false,
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "17.x.x",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.changeset/pre.json

@@ -0,0 +1,8 @@
+{
+  "mode": "pre",
+  "tag": "alpha",
+  "initialVersions": {
+    "graphql": "17.0.0-alpha.10"
+  },
+  "changesets": []
+}

.changeset/wacky-streets-obey.md

@@ -0,0 +1,5 @@
+---
+'graphql': patch
+---
+
+Add changesets to 17.x.x alpha

.github/CONTRIBUTING.md

@@ -86,28 +86,11 @@ Feel free to reach out via the [graphql-js channel](https://discord.com/channels
 
 ## Release on NPM
 
-_Only core contributors may release to NPM._
-
-To release a new version on NPM, first ensure all tests pass with `npm test`,
-then use `npm version patch|minor|major` in order to increment the version in
-package.json and tag and commit a release. Then `git push && git push --tags`
-to sync this change with source control. Then `npm publish npmDist` to actually
-publish the release to NPM.
-Once published, add [release notes](https://github.com/graphql/graphql-js/releases).
-Use [semver](https://semver.org/) to determine which version part to increment.
-
-Example for a patch release:
-
-```sh
-npm ci
-npm test
-npm version patch --ignore-scripts=false
-git push --follow-tags
-cd npmDist && npm publish
-npm run changelog
-```
-
-Then upload the changelog to [https://github.com/graphql/graphql-js/releases](https://github.com/graphql/graphql-js/releases).
+Releases are managed by Changesets and GitHub Actions:
+
+- Contributors add changesets in PRs (`npm run changeset`) for user-facing changes.
+- Changesets release automation is currently enabled only on `17.x.x`.
+- Merging the release PR triggers publish to NPM.
 
 ## License
 

.github/workflows/changesets.yml

@@ -0,0 +1,45 @@
+name: Changesets
+on:
+  push:
+    branches:
+      - 17.x.x
+  workflow_dispatch:
+permissions: {}
+jobs:
+  release:
+    name: Create release PR or publish
+    if: ${{ !github.event.repository.fork && github.ref_name == '17.x.x' }}
+    runs-on: ubuntu-latest
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref_name }}
+      cancel-in-progress: true
+    permissions:
+      contents: write # for changesets action to commit/tag
+      pull-requests: write # for changesets action to create/update release PR
+      id-token: write # for npm trusted publishing via OIDC
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          cache: npm
+          node-version-file: '.node-version'
+
+      - name: Install Dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Run Changesets
+        uses: changesets/action@v1
+        with:
+          title: 'chore(release): version packages'
+          commit: 'chore(release): version packages'
+          version: npm run release:version
+          publish: npm run release:publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_CONFIG_PROVENANCE: true