rEFInd: set or unset "Microsoft" as default

refind-set-default.py

#!/usr/bin/python3

from argparse import ArgumentParser
from os.path import basename
from pathlib import Path
from typing import List

TARGET_FILE = "/boot/efi/EFI/refind/refind.conf"
TARGET_TEXT = "default_selection Microsoft"

scriptName = basename(Path(__file__).absolute())
argParser = ArgumentParser(prog=scriptName, description="configure refind.")
argParser.add_argument("-m", "--microsoft", help="set default boot entry as Microsoft", action="store_true")
args = argParser.parse_args()

lines: List[str] = []
with open(TARGET_FILE) as configFile:
    lines = configFile.readlines()

edited = False

for index, line in enumerate(lines):
    if line == f"#{TARGET_TEXT}\n" and args.microsoft:
        newLine = f"{TARGET_TEXT}\n"
        print(f"replacing line: {line}\nwith: {newLine}")
        lines[index] = newLine
        edited = True
        break
    elif line == f"{TARGET_TEXT}\n" and not args.microsoft:
        newLine = f"#{TARGET_TEXT}\n"
        print(f"replacing line: {line}\nwith: {newLine}")
        lines[index] = newLine
        edited = True
        break

if edited:
    print(f"overwriting file: {TARGET_FILE}")
    with open(TARGET_FILE, "w") as configFile:
        configFile.write("".join(lines))
else:
    print("nothing to do")

print("done")

I'm dual-booting Pop Os and Windows, and I wanted to find a easy way to boot-into-windows with a command when I'm in Pop Os.

So I have script that invokes this one with the --microsoft flag, and then issues a reboot.

Secondly I added this script (without the --microsoft flag) to crontab "on reboot", so that when I explicitly chose to boot into Pop Os, the rEFInd default is set back to "previous boot entry".