Fallback server checkout to master

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

workflow-templates/appstore-build-publish.yml

@@ -46,19 +46,22 @@ jobs:
       - name: Read package.json node and npm engines version
         uses: skjnldsv/read-package-engines-version-actions@v1.1
         id: versions
+        # Continue if no package.json
         continue-on-error: true
         with:
           path: ${{ env.APP_NAME }}
           fallbackNode: '^12'
           fallbackNpm: '^6'
 
       - name: Set up node ${{ steps.versions.outputs.nodeVersion }}
+        # Skip if no package.json
         if: ${{ steps.versions.outputs.nodeVersion }}
         uses: actions/setup-node@v2
         with:
           node-version: ${{ steps.versions.outputs.nodeVersion }}
 
       - name: Set up npm ${{ steps.versions.outputs.npmVersion }}
+        # Skip if no package.json
         if: ${{ steps.versions.outputs.npmVersion }}
         run: npm i -g npm@"${{ steps.versions.outputs.npmVersion }}"
 
@@ -69,29 +72,41 @@ jobs:
           coverage: none
 
       - name: Install composer dependencies
+        # Continue if no composer.json
         continue-on-error: true
         run: |
           cd ${{ env.APP_NAME }}
           composer install --no-dev
 
       - name: Build ${{ env.APP_NAME }}
+        # Skip if no package.json
         if: ${{ steps.versions.outputs.nodeVersion }}
         run: |
           cd ${{ env.APP_NAME }}
           npm ci
           npm run build
 
       - name: Package ${{ env.APP_NAME }} ${{ env.APP_VERSION }}
+        # Try krankerl, fallback to makefile
         run: |
           cd ${{ env.APP_NAME }}
           krankerl package || make appstore
 
       - name: Checkout server ${{ fromJSON(steps.appinfo.outputs.result).nextcloud.min-version }}
+        continue-on-error: true
+        id: server-checkout
         run: |
           NCVERSION=${{ fromJSON(steps.appinfo.outputs.result).nextcloud.min-version }}
           wget --quiet https://download.nextcloud.com/server/releases/latest-$NCVERSION.zip
           unzip latest-$NCVERSION.zip
 
+      - name: Checkout server master fallback
+        uses: actions/checkout@v2
+        if: ${{ steps.server-checkout.outcome != 'success' }}
+        with:
+          repository: nextcloud/server
+          path: nextcloud
+
       - name: Sign app
         run: |
           # Extracting release