Open PR for versions update in github actions

This move the steps that commit a version update into a separate action, which commits to a new branch on opens a PR.

This is because github actions can't push to main directly.

.github/workflows/update-preview.yml → .github/workflows/update-versions.yml

@@ -11,10 +11,14 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: "write"
+      pull-requests: "write"
     steps:
       - uses: actions/checkout@v2
         with:
           ref: "main"
+      - name: "Get latest tag"
+        id: latesttag
+        uses: "WyriHaximus/github-action-get-previous-tag@v1"
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 3.0.0
@@ -27,7 +31,9 @@ jobs:
         run: |
           git config --global user.email "[email protected]"
           git config --global user.name "Github Action"
-          TAG=$(git describe --abbrev=0)
-          ./scripts/update-preview.sh $TAG
-          git push https://${{ secrets.REGISTRY_TOKEN }}@github.com/ably/ably-ui.git
+          ./scripts/update-versions.sh ${{ steps.previoustag.outputs.tag }}
         shell: bash
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v4
+        with:
+          branch: update-versions-to-${{ ${{ steps.previoustag.outputs.tag }}}}

scripts/release.sh

@@ -45,7 +45,3 @@ rm ably-ui-$VERSION.gem
 
 echo "Publish the npm package to the registry"
 yarn publish --no-git-tag-version --new-version $VERSION
-
-echo "Commit version publish"
-git add package.json lib/ably_ui/version.rb Gemfile.lock
-git commit -m "Commit version bump to $VERSION"

scripts/update-preview.sh → scripts/update-versions.sh

@@ -6,10 +6,21 @@ env
 
 VERSION=$1
 
+echo "Update package version"
+yarn version --new-version $VERSION --no-git-tag-version
+
+echo "Update version.rb"
+# Using -i.bak is a cross-platform way of using sed
+# https://stackoverflow.com/a/22084103
+sed -i.bak "s/  VERSION = '.*'/  VERSION = '${VERSION}'/" lib/ably_ui/version.rb
+rm lib/ably_ui/version.rb.bak
+
 echo "Update preview app version"
 cd preview
 
 echo "Amend Gemfile to use the right version"
+# Using -i.bak is a cross-platform way of using sed
+# https://stackoverflow.com/a/22084103
 sed -i.bak "s/gem 'ably-ui', '.*', require/gem 'ably-ui', '${VERSION}', require/" Gemfile
 rm Gemfile.bak
 
@@ -22,4 +33,5 @@ bundle lock  # don't change contents gem dir as it might be using local paths
 echo "Commit preview app update to $VERSION"
 cd ..
 git add preview/package.json preview/yarn.lock preview/Gemfile preview/Gemfile.lock
-git commit -m "Update preview app to ably-ui $VERSION"
+git add lib/ably_ui/version.rb Gemfile.lock package.json
+git commit -m "Update package version & preview app to ably-ui $VERSION"