From d4b2808393a0465c21177fc6b04d793df7d498d1 Mon Sep 17 00:00:00 2001
From: Christoph Reiter <reiter.christoph@gmail.com>
Date: Wed, 22 May 2024 21:33:46 +0200
Subject: [PATCH] CI: add a step which uninstalls all potentially left over
 packages

In case a previous run has been aborted mid-run, there might still be
packages installed. Make sure we get back to the minimal state again.
---
 .github/workflows/build.yml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4775c9d..5879f16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -168,6 +168,19 @@ jobs:
         msys2 -c 'pacman --noconfirm -Suu'
         msys2 -c 'pacman -Qkq'
 
+    - name: Remove potentially left over packages
+      if: ${{ runner.arch == 'ARM64' }}
+      shell: msys2 {0}
+      run: |
+        # Remove everything not needed
+        # XXX: this depends on marix.packages just being base+base-devel
+        TO_REMOVE=$(comm -23 <(pacman -Qq | sort) <((pactree -ul base | sed 's/[<>=].*//'; pactree -ul base-devel | sed 's/[<>=].*//') | sort -u))
+        if [[ -n "$TO_REMOVE" ]]; then
+            pacman --noconfirm -Rddn $TO_REMOVE
+            # This shouldn't install anything, but just in case
+            pacman -S --noconfirm --needed ${{ matrix.packages }}
+        fi
+
     - name: Process build queue
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}