Meson: add tests on Alpine

.devcontainer/portability-alpine/Dockerfile

@@ -0,0 +1,2 @@
+FROM ghcr.io/linuxcontainers/alpine:3.22
+RUN apk add --no-cache git python3 bash curl

.devcontainer/portability-alpine/devcontainer.json

@@ -0,0 +1,23 @@
+// See https://aka.ms/devcontainer.json for format details.
+{
+    "name": "alpine",
+    //"image": "ghcr.io/linuxcontainers/alpine",
+    "dockerFile": "Dockerfile",
+    "onCreateCommand": ".devcontainer/onCreate-meson.sh || true",
+    "features": {
+        "ghcr.io/devcontainers/features/git": {},
+        // Python feature is not compatible with Alpine, so we install it manually in the Dockerfile 
+        // "ghcr.io/devcontainers/features/python:1": {},
+        "ghcr.io/devcontainers/features/common-utils:2": {},
+        "../uv": {
+            "version": "latest"
+        }
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "ms-python.python"
+            ]
+        }
+    }
+}

.github/workflows/ci.yml

@@ -20,6 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         container:
+          - alpine:3.22
           - fedora:41
           - fedora:42
           - ghcr.io/void-linux/void-glibc-full
@@ -44,6 +45,9 @@ jobs:
             # but we need the maxima help to be in place
             sed -i '/^NoExtract/d' /etc/pacman.conf
           fi
+          if [[ "${{ matrix.container }}" == alpine* ]]; then
+            apk add --no-cache bash
+          fi
 
       - name: Checkout code
         # cannot use v4 yet because of https://github.com/actions/checkout/issues/1487