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examples: Convert to ArgumentParser

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Replace getopt() and hand-rolled-parser with argparse.ArgumentParser.

Fix wrong header comments copy-pasted from domstart.py

Signed-off-by: Philipp Hahn <hahn@univention.de>
This commit is contained in:
Philipp Hahn
2020-07-28 07:05:19 +02:00
committed by Philipp Hahn
parent 9cf539a2a8
commit 06aba185a8
12 changed files with 142 additions and 235 deletions
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18
examples/consolecallback.py
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@ -2,6 +2,7 @@
# consolecallback - provide a persistent console that survives guest reboots
import sys, os, logging, libvirt, tty, termios, atexit
from argparse import ArgumentParser
from typing import Optional # noqa F401
def reset_term() -> None:
@ -64,18 +65,15 @@ def lifecycle_callback(connection: libvirt.virConnect, domain: libvirt.virDomain
console.uuid, console.state[0], console.state[1])
# main
if len(sys.argv) != 3:
print("Usage:", sys.argv[0], "URI UUID")
print("for example:", sys.argv[0], "'qemu:///system' '32ad945f-7e78-c33a-e96d-39f25e025d81'")
sys.exit(1)
uri = sys.argv[1]
uuid = sys.argv[2]
parser = ArgumentParser(epilog="Example: %(prog)s 'qemu:///system' '32ad945f-7e78-c33a-e96d-39f25e025d81'")
parser.add_argument("uri")
parser.add_argument("uuid")
args = parser.parse_args()
print("Escape character is ^]")
logging.basicConfig(filename='msg.log', level=logging.DEBUG)
logging.info("URI: %s", uri)
logging.info("UUID: %s", uuid)
logging.info("URI: %s", args.uri)
logging.info("UUID: %s", args.uuid)
libvirt.virEventRegisterDefaultImpl()
libvirt.registerErrorHandler(error_handler, None)
@ -84,7 +82,7 @@ atexit.register(reset_term)
attrs = termios.tcgetattr(0)
tty.setraw(0)
console = Console(uri, uuid)
console = Console(args.uri, args.uuid)
console.stdin_watch = libvirt.virEventAddHandle(0, libvirt.VIR_EVENT_HANDLE_READABLE, stdin_callback, console)
while check_console(console):