Add prepare changelog workflow to automatically propose what should b…

…e kept in sync for us

.changeset/.recoverignore

@@ -8,3 +8,4 @@
 a6cd4aac9b7497991b7b1acc18d0e78dccb8cd78
 bae34674206d6e519e634adcd6f2e26f29030955
 e05dfdc5496dd5b1aaa2684816c1a4e05c4f88c4
+16f6c0d291a2fc5af36b4f4d73ecb047417cf318

.github/workflows/prepare-changelog.yml

@@ -0,0 +1,47 @@
+name: 'Prepare Changelog'
+on:
+  push:
+    branches:
+      - main
+env:
+  branch: "sync-changelog"
+  title: "[Release Prep]: Update proposed changelog"
+  commit: "pre-release :: add changesets"
+  body: |
+    Automated and continuously updated PR for adding changeset entries for merged PRs.
+
+    TODO
+    - [ ] Determine patch/minor/major impact for each package for each changeset
+    - [ ] if applicable, mark/remove certain changes as omitted from the changelog
+    - [ ] if applicable, bundle changes together in to a single "change set"
+
+    Remember
+    - This PR is updated on every merge to `main`
+    - This PR is force-pushed, so changes should happen on a separate branch
+
+
+jobs:
+  determine-changes:
+    name: Determine Changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: ./.github/actions/setup
+        # specify the owner so that forks with their origin poiting at the fork still query the upstream PR list
+      - run: yarn prepare:changelog --non-interactive
+        env:
+          # avoiding API read throttling
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - uses: peter-evans/create-pull-request@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: ${{ env.commit }}
+          draft: true
+          branch: ${{ env.branch }}
+          base: 'main'
+          title: ${{ env.title }}
+          body: ${{ env.body }}

package.json

@@ -26,9 +26,11 @@
     ]
   },
   "scripts": {
+    "postinstall": "patch-package",
     "release": "changeset publish",
     "clean": "git clean -x -f",
     "compile": "tsc",
+    "prepare:changelog": "changeset-recover --owner embroider-build --only-prs",
     "lint": "concurrently 'npm:lint:*(!fix)' --names 'lint:'",
     "lint:fix": "concurrently 'npm:lint:*:fix' --names 'fix:'",
     "lint:eslint": "eslint . --cache",
@@ -68,6 +70,8 @@
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-import": "^2.22.0",
     "eslint-plugin-prettier": "^3.1.4",
+    "changeset-recover": "0.1.0-beta.8",
+    "patch-package": "^6.5.1",
     "jest": "^29.2.1",
     "prettier": "^2.3.1",
     "typescript": "4.4.2"