Add changesets (#4154)

* add first changesets integration

* remove readme

* readd readme

* update auto-release workflow logic

* update auto-release script order, fix prettier

* change access to public

* update release script

* try to fix changesets

* add experimental snapshot version config

* try fixing

* remove excess

* switch auto-release branch to master

* add release pull request workflow

* add changeset todo to pr template

* update changeset

.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/master/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://unpkg.com/@changesets/config@1.5.0/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "linked": [["slate", "slate-history", "slate-hyperscript", "slate-react"]],
+  "access": "public",
+  "baseBranch": "master",
+  "updateInternalDependencies": "patch",
+  "ignore": [],
+  "___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH": {
+    "useCalculatedVersionForSnapshots": true
+  }
+}

.changeset/lovely-rats-suffer.md

@@ -0,0 +1,8 @@
+---
+'slate': patch
+'slate-history': patch
+'slate-hyperscript': patch
+'slate-react': patch
+---
+
+**Start using [🦋 Changesets](https://github.com/atlassian/changesets) to manage releases.** Going forward, whenever a pull request is made that fixes or adds functionality to Slate, it will need to be accompanied by a changset Markdown file describing the change. These files will be automatically used in the release process when bump the versions of Slate and compiling the changelog.

.github/PULL_REQUEST_TEMPLATE.md

@@ -15,4 +15,5 @@ If your change is non-trivial, please include a description of how the new logic
 - [ ] The tests pass with `yarn test`.
 - [ ] The linter passes with `yarn lint`. (Fix errors with `yarn fix`.)
 - [ ] The relevant examples still work. (Run examples with `yarn start`.)
+- [ ] You've [added a changeset](https://github.com/atlassian/changesets/blob/master/docs/adding-a-changeset.md) if changing functionality. (Add one with `yarn changeset add`.)
 

.github/workflows/auto-release-dev.yml

@@ -0,0 +1,36 @@
+name: Auto-release @dev
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    name: Auto-release @dev
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@master
+        with:
+          # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
+          fetch-depth: 0
+
+      - name: Setup node
+        uses: actions/setup-node@master
+        with:
+          node-version: 12.x
+          registry-url: https://registry.npmjs.org
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Prepare release
+        run: yarn prerelease
+
+      - name: Release to @dev channel
+        run: |
+          yarn changeset version --snapshot
+          yarn changeset publish --tag dev
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/create-release-pull-request.yml

@@ -0,0 +1,38 @@
+name: Create release PR
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    name: Create release PR
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@master
+        with:
+          # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
+          fetch-depth: 0
+
+      - name: Setup node
+        uses: actions/setup-node@master
+        with:
+          node-version: 12.x
+          registry-url: https://registry.npmjs.org
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Prepare release
+        run: yarn prerelease
+
+      # https://github.com/changesets/action
+      - name: Create release pull request
+        uses: changesets/action@master
+        with:
+          publish: yarn changeset publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/release.yml

@@ -1,16 +0,0 @@
-name: Release
-
-jobs:
-  release:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
-        with:
-          node-version: '14'
-      - run: |
-          git config --global user.name 'Automation'
-          git config --global user.email 'ianstormtaylor@users.noreply.github.com'
-          yarn
-          yarn internal:release:next
-

package.json

@@ -23,7 +23,7 @@
     "release:latest": "yarn prerelease && lerna publish --force-publish",
     "release:next": "yarn prerelease && lerna publish --dist-tag next --force-publish",
     "release:experimental": "yarn prerelease && lerna publish --dist-tag experimental",
-    "internal:release:next": "yarn prerelease && lerna publish --dist-tag next --force-publish --conventional-commits --yes",
+    "internal:release:next": "yarn prerelease && yarn changeset publish --tag next",
     "serve": "cd ./site && next",
     "start": "npm-run-all --parallel --print-label watch serve",
     "test": "mocha --require ./config/babel/register.cjs ./packages/*/test/index.js",
@@ -45,6 +45,7 @@
     "@babel/preset-typescript": "^7.7.4",
     "@babel/register": "^7.7.4",
     "@babel/runtime": "^7.7.4",
+    "@changesets/cli": "^2.14.1",
     "@types/lodash": "^4.14.149",
     "@types/mocha": "^5.2.7",
     "@types/node": "^12.12.14",