This is a behavior seen while using Rockcraft. Updating repositories entries does not remove PPA files from the disk and does not trigger pull steps. rockcraft.yaml ```yaml name: python-3.8 summary: Python 3.8 license: Apache-2.0 description: | Python 3.8 version: "3.8" base: ubuntu:22.04 platforms: amd64: package-repositories: - type: apt ppa: dqlite/dev priority: always - type: apt ppa: deadsnakes/ppa priority: always parts: python: plugin: nil stage-packages: - python3.8 ``` Performing pull step: ```bash rockcraft pull --shell-after Launching instance... Retrieved base ubuntu:22.04 for amd64 Extracted ubuntu:22.04 Package repositories installed Executed: pull pebble Executed: pull python Launching shell on build environment... root@rockcraft-keystone-53910271:~/project# ls -alh /etc/apt/sources.list.d/ total 4.0K drwxr-xr-x 2 root root 4 Apr 3 13:09 . drwxr-xr-x 8 root root 9 Apr 26 2022 .. -rw-r--r-- 1 root root 164 Apr 3 13:09 snapcraft-ppa-deadsnakes_ppa.sources -rw-r--r-- 1 root root 160 Apr 3 13:09 snapcraft-ppa-dqlite_dev.sources root@rockcraft-keystone-53910271:~/project# ``` Then, removing the `deadsnakes/ppa` PPA: ```diff diff rockcraft.yaml/before rockcraft.yaml/after 16,18d15 < - type: apt < ppa: deadsnakes/ppa < priority: always ``` This is the result: ```bash rockcraft pull --shell-after Launching instance... Retrieved base ubuntu:22.04 for amd64 Extracted ubuntu:22.04 Package repositories installed Executed: skip pull pebble (already ran) Executed: skip pull python (already ran) Launching shell on build environment... root@rockcraft-keystone-53910271:~/project# ls -alh /etc/apt/sources.list.d/ total 4.0K drwxr-xr-x 2 root root 4 Apr 3 13:09 . drwxr-xr-x 8 root root 9 Apr 26 2022 .. -rw-r--r-- 1 root root 164 Apr 3 13:09 snapcraft-ppa-deadsnakes_ppa.sources -rw-r--r-- 1 root root 160 Apr 3 13:09 snapcraft-ppa-dqlite_dev.sources ``` The sources file is not removed, and the pull stage is not retriggered. (this should have failed)