action: Install dependencies in action repo checkout

Since we symlink systemd-nspawn from the build directory to /usr/bin,
if the directory that nspawn was built in is cleaned up (e.g. via
git clean), systemd-nspawn is gone as well. To make it harder to
accidentally delete systemd-nspawn, let's clone and build all the
dependencies we compile from source in the repo checkout of the
action instead of in the repo of the project that's using the mkosi
action.

diff --git a/action.yaml b/action.yaml
index e887afb4c9bbf3d44c767ed6b524c807c085b461..1fd5940e953d93df194d753c35aa0578d2e523c8 100644 (file)
--- a/action.yaml
+++ b/action.yaml
@@ -21,6 +21,7 @@ runs:
 
   - name: Dependencies
     shell: bash
+    working-directory: ${{ github.action_path }}
     run: |
       sudo apt-get update
       sudo apt-get install --assume-yes --no-install-recommends \
@@ -42,7 +43,7 @@ runs:
 
       mkdir -p $BUILDDIR
 
-      sudo -E ${{ github.action_path }}/action/setup-pacman.sh
+      sudo -E action/setup-pacman.sh
       sudo chown -R $USER: $BUILDDIR
 
       sudo pacman-key --init
@@ -73,6 +74,7 @@ runs:
   # systemd-nspawn from v251 from source.
   - name: Update systemd-nspawn
     shell: bash
+    working-directory: ${{ github.action_path }}
     run: |
       echo "deb-src http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs) main restricted universe multiverse" | sudo tee -a /etc/apt/sources.list
       sudo apt-get update