Debian sid docker image no-longer has /etc/apt/sources.list

diff --git a/.github/workflows/ci-deb.yml b/.github/workflows/ci-deb.yml
index 6d103477a5b613c4e251a267278e080e87f0106b..f766fef1673d1e2c4d7e497930b90f4d283871e5 100644 (file)
--- a/.github/workflows/ci-deb.yml
+++ b/.github/workflows/ci-deb.yml
@@ -80,8 +80,10 @@ jobs:
 
     - name: Package manager performance and stability improvements
       run: |
+        if [ -f "/etc/apt/sources.list" ]; then
         sed -i 's/deb.debian.org/debian-archive.trafficmanager.net/' /etc/apt/sources.list
         sed -i 's/archive.ubuntu.com/azure.archive.ubuntu.com/' /etc/apt/sources.list
+        fi
         echo 'Acquire::Retries "10";' > /etc/apt/apt.conf.d/80-retries
         echo 'force-unsafe-io' > /etc/dpkg/dpkg.cfg.d/02speedup
         echo 'man-db man-db/auto-update boolean false' | debconf-set-selections