ci: refine Jekyll preview workflow

Use PR ID in the URL instead of the hash
and build without Docker.

.github/workflows/jekyll.yml

@@ -8,36 +8,49 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Can we upload the preview?  # Get Pullrequest ID
+    - name: Get Pullrequest ID
       id: prepare
       run: |
-        if [ $(expr length "${{ secrets.USERNAME }}") -gt "1" ]; then echo ::set-output name=uploadtoserver::true ;fi
-    - uses: actions/checkout@v1
-    - name: Fix lockfile permissions
-      run: |
-        chmod 666 Gemfile.lock
-    - name: Build the site in the jekyll/builder container
+        PULLREQUEST_ID=$(echo "${{ github.ref }}" | cut -d "/" -f3)
+        echo "prid=$PULLREQUEST_ID" >> $GITHUB_OUTPUT
+        if test $(expr length "${{ secrets.USERNAME }}") -gt "1"; then
+          echo "uploadtoserver=true" >> $GITHUB_OUTPUT
+        fi
+    - uses: actions/checkout@v3
+
+    - name: Install Bundler
+      run: sudo gem install bundler
+
+    - name: Cache bundle
+      with:
+        path: vendor/bundle
+        key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-gems-
+
+    - name: Install Jekyll
+      run: bundle install
+
+    - name: Build the site with Jekyll
       run: |
-        docker run \
-        -v ${{ github.workspace }}:/srv/jekyll -v ${{ github.workspace }}/_site:/srv/jekyll/_site \
-        jekyll/builder:latest /bin/bash -c "chmod 777 /srv/jekyll && jekyll build --future"
-    - name: Upload
+        bundle exec jekyll build --future --baseurl "/${{ steps.prepare.outputs.prid }}"
+        mkdir ${{ steps.prepare.outputs.prid }}
+
+    - name: Upload preview
       if: steps.prepare.outputs.uploadtoserver
-      uses: appleboy/scp-action@master
-      with:
-        username: ${{ secrets.USERNAME }}
-        key: ${{ secrets.KEY }}
-        host: mailadm.testrun.org
-        port: 22
-        source: _site
-        target: providerOverview/${{ github.sha }}/
+      run: |
+        mkdir -p "$HOME/.ssh"
+        echo "${{ secrets.KEY }}" > "$HOME/.ssh/key"
+        chmod 600 "$HOME/.ssh/key"
+        rsync -avzh -e "ssh -i $HOME/.ssh/key -o StrictHostKeyChecking=no" $GITHUB_WORKSPACE/_site/ "${{ secrets.USERNAME }}@mailadm.testrun.org:providerOverview/${{ steps.prepare.outputs.prid }}/"
+
     - name: "Post links to details"
       if: steps.prepare.outputs.uploadtoserver
       id: details
       run: |
         # URLs for API connection and uploads
         export GITHUB_API_URL="https://api.github.com/repos/deltachat/provider-db/statuses/${{ github.event.after }}"
-        export PREVIEW_LINK="https://mailadm.testrun.org/provider/${{ github.sha }}/_site/"
+        export PREVIEW_LINK="https://mailadm.testrun.org/provider/${{ steps.prepare.outputs.prid }}/_site/"
         # Post AppImage download link to check details
         export STATUS_DATA="{\"state\": \"success\", \
                              \"description\": \"Preview the page here:\", \
@@ -49,7 +62,7 @@ jobs:
       if: steps.details.outputs.comment
       uses: rytswd/[email protected]
       with:
-        body: "Check out the page preview at https://mailadm.testrun.org/provider/${{ github.sha }}/_site/"
+        body: "Check out the page preview at https://mailadm.testrun.org/provider/${{ steps.prepare.outputs.prid }}/_site/"
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}