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allow interactive questions

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JerryXiao 2021-04-05 12:16:18 +08:00
parent cf45b3c490
commit ae982b78b0
Signed by: Jerry
GPG key ID: 22618F758B5BE2E5
2 changed files with 56 additions and 24 deletions
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15
src/pacroller/main.py
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@ -5,7 +5,7 @@ import subprocess
import logging
from re import match
import json
from os import environ, getuid
from os import environ, getuid, isatty
import traceback
import pyalpm
import pycman
@ -75,7 +75,7 @@ class alpmCallback:
handle.questioncb = self.noop
handle.progresscb = self.noop
def upgrade() -> List[str]:
def upgrade(interactive=False) -> List[str]:
logger.info('upgrade start')
pycman.config.cb_log = lambda *_: None
handle = pycman.config.init_with_config(PACMAN_CONFIG)
@ -108,11 +108,11 @@ def upgrade() -> List[str]:
examine_upgrade(t.to_add, t.to_remove)
finally:
t.release()
pacman_output = execute_with_io(['pacman', '-Su', '--noprogressbar', '--color', 'never'], UPGRADE_TIMEOUT)
pacman_output = execute_with_io(['pacman', '-Su', '--noprogressbar', '--color', 'never'], UPGRADE_TIMEOUT, interactive=interactive)
logger.info('upgrade end')
return pacman_output
def do_system_upgrade(debug=False) -> checkReport:
def do_system_upgrade(debug=False, interactive=False) -> checkReport:
for _ in range(NETWORK_RETRY):
try:
sync()
@ -127,7 +127,7 @@ def do_system_upgrade(debug=False) -> checkReport:
try:
with open(PACMAN_LOG, 'r') as pacman_log:
log_anchor = pacman_log.seek(0, 2)
stdout = upgrade()
stdout = upgrade(interactive=interactive)
except subprocess.CalledProcessError as e:
if upgrade_err_is_net(e.output):
logger.warning('upgrade download failed')
@ -240,12 +240,15 @@ def main() -> None:
parser.add_argument('-d', '--debug', action='store_true', help='enable debug mode')
parser.add_argument('-v', '--verbose', action='store_true', help='show verbose report')
parser.add_argument('-m', '--max', type=int, default=1, help='Number of upgrades to show')
parser.add_argument('-i', '--interactive', choices=['auto', 'on', 'off'], default='auto', help='allow interactive questions')
args = parser.parse_args()
if args.debug:
logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - %(module)s - %(funcName)s - %(levelname)s - %(message)s')
else:
logging.basicConfig(level=logging.INFO, format='%(levelname)s - %(message)s')
locale_set()
interactive = args.interactive == "on" or not (args.interactive == 'off' or not isatty(0))
logger.debug(f"interactive questions {'enabled' if interactive else 'disabled'}")
if args.action == 'run':
if getuid() != 0:
@ -262,7 +265,7 @@ def main() -> None:
logger.error(f'Database is locked at {PACMAN_DB_LCK}')
exit(2)
try:
report = do_system_upgrade(args.debug)
report = do_system_upgrade(debug=args.debug, interactive=interactive)
except NonFatal:
raise
except Exception as e:

65
src/pacroller/utils.py
View file

@ -6,6 +6,8 @@ from io import DEFAULT_BUFFER_SIZE
from time import mktime
from datetime import datetime
from signal import SIGINT, SIGTERM, Signals
from select import select
from sys import stdin
logger = logging.getLogger()
class UnknownQuestionError(subprocess.SubprocessError):
@ -15,7 +17,7 @@ class UnknownQuestionError(subprocess.SubprocessError):
def __str__(self):
return f"Pacman returned an unknown question {self.question}"
def execute_with_io(command: List[str], timeout: int = 3600) -> List[str]:
def execute_with_io(command: List[str], timeout: int = 3600, interactive: bool = False) -> List[str]:
'''
captures stdout and stderr and
automatically handles [y/n] questions of pacman
@ -42,23 +44,50 @@ def execute_with_io(command: List[str], timeout: int = 3600) -> List[str]:
stderr=subprocess.STDOUT,
encoding='utf-8'
)
Thread(target=set_timeout, args=(p, timeout), daemon=True).start() # should be configurable
line = ''
output = ''
while (r := p.stdout.read(1)) != '':
output += r
line += r
if r == '\n':
logger.debug('STDOUT: %s', line[:-1])
line = ''
elif r == ']':
if line == ':: Proceed with installation? [Y/n]':
p.stdin.write('y\n')
p.stdin.flush()
elif line.lower().endswith('[y/n]'):
terminate(p, signal=SIGINT)
raise UnknownQuestionError(line, output)
try:
Thread(target=set_timeout, args=(p, timeout), daemon=True).start()
line = ''
output = ''
while (r := p.stdout.read(1)) != '':
output += r
line += r
if r == '\n':
logger.debug('STDOUT: %s', line[:-1])
line = ''
elif r == ']':
if line == ':: Proceed with installation? [Y/n]':
p.stdin.write('y\n')
p.stdin.flush()
elif line.lower().endswith('[y/n]'):
if interactive:
print(f"Please answer this question in 60 seconds:\n{line}", end=' ', flush=True)
while True:
read_ready, _, _ = select([stdin], list(), list(), 60)
if not read_ready:
terminate(p, signal=SIGINT)
raise UnknownQuestionError(line, output)
choice = read_ready[0].readline().strip()
if choice.lower().startswith('y'):
p.stdin.write('y\n')
p.stdin.flush()
break
elif choice.lower().startswith('n'):
p.stdin.write('n\n')
p.stdin.flush()
break
else:
if choice.lower().startswith('s'):
print(output)
print("Please give an explicit answer [Y]es [N]o [S]how", end=' ', flush=True)
else:
terminate(p, signal=SIGINT)
raise UnknownQuestionError(line, output)
except KeyboardInterrupt:
terminate(p, signal=SIGINT)
raise
except Exception:
terminate(p)
raise
if (ret := p.wait()) != 0:
raise subprocess.CalledProcessError(ret, command, output)
return output.split('\n')