Grist: Guard backup restore for empty docs/db files

ct/grist.sh

@@ -46,9 +46,11 @@ function update_script() {
     msg_info "Updating Grist"
     mkdir -p /opt/grist/docs
     cp -n /opt/grist_bak/.env /opt/grist/.env
-    cp -r /opt/grist_bak/docs/* /opt/grist/docs/
-    cp /opt/grist_bak/grist-sessions.db /opt/grist/grist-sessions.db
-    cp /opt/grist_bak/landing.db /opt/grist/landing.db
+    if ls /opt/grist_bak/docs/* &>/dev/null; then
+      cp -r /opt/grist_bak/docs/* /opt/grist/docs/
+    fi
+    [[ -f /opt/grist_bak/grist-sessions.db ]] && cp /opt/grist_bak/grist-sessions.db /opt/grist/grist-sessions.db
+    [[ -f /opt/grist_bak/landing.db ]] && cp /opt/grist_bak/landing.db /opt/grist/landing.db
     cd /opt/grist
     $STD yarn install
     $STD yarn run install:ee

ct/zigbee2mqtt.sh

@@ -50,7 +50,7 @@ function update_script() {
     rm -rf /opt/zigbee2mqtt/data
     mv /opt/z2m_backup/data /opt/zigbee2mqtt
     cd /opt/zigbee2mqtt
-    grep -q "^packageImportMethod" ./pnpm-workspace.yaml 2>/dev/null || echo "packageImportMethod: hardlink" >>./pnpm-workspace.yaml
+    grep -q "^packageImportMethod" ./pnpm-workspace.yaml || echo "packageImportMethod: hardlink" >>./pnpm-workspace.yaml
     $STD pnpm install --frozen-lockfile
     $STD pnpm build
     rm -rf /opt/z2m_backup