add xz compression support

Signed-off-by: Zen <[email protected]>

Author: desultory

pyproject.toml

@@ -19,7 +19,7 @@ classifiers = [
 
 dependencies = [
     "zenlib >= 2.1.2",
-    "pycpio >= 1.0.0"
+    "pycpio >= 1.1.1"
 ]
 
 [options]

readme.md

@@ -383,6 +383,7 @@ This module handles CPIO creation.
 
 * `out_file` (ugrd.cpio) Sets the name of the output file, under `out_dir` unless a path is defined.
 * `mknod_cpio` (true) Only create device nodes within the CPIO.
+* `cpio_compression` (xz) Sets the compression method for the CPIO file.
 
 ##### General mount options
 

src/ugrd/fs/cpio.py

@@ -36,7 +36,7 @@ def make_cpio(self) -> None:
     if out_cpio.exists():
         self._rotate_old(out_cpio)
 
-    cpio.write_cpio_file(out_cpio, _log_bump=-10, _log_init=False)
+    cpio.write_cpio_file(out_cpio, compression=self['cpio_compression'], _log_bump=-10, _log_init=False)
 
 
 def _process_out_file(self, out_file):

src/ugrd/fs/cpio.toml

@@ -1,5 +1,6 @@
-out_file = "ugrd.cpio"
+out_file = "ugrd.cpio.xz"
 mknod_cpio = true
+cpio_compression = "xz"
 
 [imports.config_processing]
 "ugrd.fs.cpio" = [ "_process_out_file" ]
@@ -10,3 +11,4 @@ mknod_cpio = true
 [custom_parameters]
 out_file = "str"  # The name of the cpio file to create.
 mknod_cpio = "bool"  # When enabled, mknod is not used to create device nodes, they are just created in the cpio.
+cpio_compression = "str"  # The compression method to use for the cpio file. Currently, only xz is supported.