[PATCH 3/5] ci: Add Archlinux

[Lucas De Marchi <lucas.de.marchi@xxxxxxxxx>]

Add an action to setup Archlinux and use it for the initial setup.
The rest of the workflow can stay the same.

Signed-off-by: Lucas De Marchi <lucas.de.marchi@xxxxxxxxx>
---
 .github/actions/setup-archlinux/action.yml | 16 ++++++++++++++++
 .github/workflows/main.yml                 |  6 +++++-
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 .github/actions/setup-archlinux/action.yml

diff --git a/.github/actions/setup-archlinux/action.yml b/.github/actions/setup-archlinux/action.yml
new file mode 100644
index 0000000..9b22a9a
--- /dev/null
+++ b/.github/actions/setup-archlinux/action.yml
@@ -0,0 +1,16 @@
+name: 'setup Archlinux'
+description: 'Setup an Archlinux container for running CI'
+runs:
+  using: 'composite'
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        rm -rf /etc/pacman.d/gnupg
+        pacman-key --init
+        pacman-key --populate
+        pacman --noconfirm -Sy archlinux-keyring
+        pacman --noconfirm -Su \
+          linux-headers \
+          scdoc \
+          gtk-doc
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a9ad289..3f8eaa6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,14 +11,18 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        container: ['ubuntu:22.04', 'ubuntu:24.04']
+        container: ['ubuntu:22.04', 'ubuntu:24.04', 'archlinux:base-devel']
 
     container:
       image: ${{ matrix.container }}
 
     steps:
       - uses: actions/checkout@v4
+
       - uses: ./.github/actions/setup-ubuntu
+        if: ${{ startsWith(matrix.container, 'ubuntu') }}
+      - uses: ./.github/actions/setup-archlinux
+        if: ${{ startsWith(matrix.container, 'archlinux') }}
 
       - name: configure
         run: |
-- 
2.45.2