rwx

rwx/cmd/__init__.py

@@ -0,0 +1,15 @@
+commands: list[str] = []
+packages: list[str] = []
+
+
+def need(command: str) -> None:
+    match command:
+        case 'debootstrap':
+            package = 'debootstrap'
+        case 'mksquashfs' | 'unsquashfs':
+            package = 'squashfs-tools'
+        case _:
+            package = None
+    if package:
+        if package not in packages:
+            packages.append(package)

rwx/cmd/squashfs/__init__.py

@@ -0,0 +1,14 @@
+import cmd
+import ps
+
+cmd.need('mksquashfs')
+
+
+def mksquashfs(input_root: str, output_file: str):
+    ps.run([
+        'mksquashfs',
+        input_root,
+        output_file,
+        '-comp', 'zstd',
+        '-Xcompression-level', str(18),
+    ])