Marc Beninca
020aaa0b9a
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54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
"""Wrap GRUB commands."""
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from __future__ import annotations
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from rwx import cmd, ps
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cmd.need("grub-mkimage")
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COMPRESSION = "xz"
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ENV_BYTES = 1024
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ENV_COMMENT = "#"
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ENV_HEADER = f"""{ENV_COMMENT} GRUB Environment Block
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"""
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MODULES = {
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"i386-pc": [
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("biosdisk",),
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("ntldr",),
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],
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}
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def make_image(
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image_format: str,
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image_path: str,
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modules: list[str],
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memdisk_path: str,
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pubkey_path: str | None = None,
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) -> None:
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"""Make a binary bootable image.
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:param image_format: output format (x86_64-efi, i386-pc, arm64-efi)
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:type image_format: str
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:param image_path: output file
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:type image_path: str
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:param modules: modules to embed
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:type modules: list[str]
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:param memdisk_path: archive to include
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:type memdisk_path: str
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:param pubkey_path: extra public key to add
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:type pubkey_path: str | None
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"""
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args: list[str | tuple[str, ...]] = [
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"grub-mkimage",
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("--compress", COMPRESSION),
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("--format", image_format),
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("--output", image_path),
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("--memdisk", memdisk_path),
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]
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if pubkey_path:
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args.append(("--pubkey", pubkey_path))
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args.extend(modules)
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if extra_modules := MODULES.get(image_format):
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args.extend(extra_modules)
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ps.run(*args)
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