ci: add meson.build fmt check

.github/workflows/format-meson.yml

@@ -0,0 +1,19 @@
+name: Check meson.build Format
+
+on: [push, pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+jobs:
+  format-meson:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Meson
+        run: pip install git+https://github.com/mesonbuild/meson
+
+      - name: Format Checks
+        run: python ./tools/run_meson_fmt.py --check

tools/run_meson_fmt.py

@@ -0,0 +1,34 @@
+"""
+format or check all meson.build file in projects
+"""
+
+import sys
+import pathlib
+import subprocess
+from shutil import which
+from itertools import chain
+
+is_check = "--check" in sys.argv
+
+base_command = [which("meson"), "fmt", "--editor-config"]
+if is_check:
+    base_command.append("--check-only")
+else:
+    base_command.append("--inplace")
+
+project_root = pathlib.Path(__file__).parent.parent
+
+for meson_file in chain(
+    [project_root.joinpath("meson.build")],
+    project_root.glob("subprojects/packagefiles/**/meson.build"),
+):
+    readable_filename = meson_file.relative_to(project_root).as_posix()
+    print("processing:", readable_filename)
+    try:
+        subprocess.check_call(base_command + [str(meson_file)], cwd=str(project_root))
+    except subprocess.CalledProcessError as e:
+        if is_check:
+            print("{} is not formatted".format(readable_filename))
+            sys.exit(e.returncode)
+        else:
+            print("failed to format {}".format(readable_filename))