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feat: add java-last-kiosk for repeating previous java-kiosk run
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Original file line number | Diff line number | Diff line change |
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#!/usr/bin/env python3 | ||
import argparse | ||
import json | ||
import logging | ||
import os | ||
import shlex | ||
import shutil | ||
import sys | ||
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# Hardcoded configuration values | ||
JAVA_LAST_KIOSK_LOG = "/tmp/java-last-kiosk.log" | ||
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# Parse CLI arguments | ||
parser = argparse.ArgumentParser(description='JavaFX Last Kiosk Launcher', allow_abbrev=False) | ||
parser.add_argument('-d', '--debug', action='store_true', help='Enable debug logging') | ||
parser.add_argument('-n', '--dry-run', action='store_true', help='Only output command, do not execute') | ||
args = parser.parse_args() | ||
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# Ensure we are running as root | ||
if os.geteuid() != 0: | ||
parser.error("Unable to execute 'java-kiosk' without running as root") | ||
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# Initialize formatter for unified debug logs | ||
formatter = logging.Formatter('%(asctime)s %(levelname)-8s %(message)s') | ||
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# Initialize stream handler for logging, only visible when debug argument was given | ||
streamHandler = logging.StreamHandler() | ||
streamHandler.setFormatter(formatter) | ||
streamHandler.setLevel(logging.DEBUG if args.debug else logging.INFO) | ||
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# Initialize file handler for logging, always active | ||
fileHandler = logging.FileHandler(JAVA_LAST_KIOSK_LOG, mode='w') | ||
fileHandler.setFormatter(formatter) | ||
fileHandler.setLevel(logging.DEBUG) | ||
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# Initialize logging | ||
logger = logging.getLogger('java-kiosk') | ||
logger.addHandler(streamHandler) | ||
logger.addHandler(fileHandler) | ||
logger.setLevel(logging.DEBUG) | ||
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# Search for absolute path of java-kiosk | ||
java_kiosk_path = shutil.which('java-kiosk') | ||
if java_kiosk_path is None: | ||
parser.error("Unable to find 'java-kiosk' binary in current PATH") | ||
logger.debug("Found path to 'java-kiosk' helper script: %s", java_kiosk_path) | ||
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# Determine path to persistence file | ||
persistence_path = os.path.join(os.path.expanduser('~'), '.java-last-kiosk') | ||
logger.debug('Determined path to last-java-kiosk persistence file: %s', persistence_path) | ||
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# Parse persistence file as JSON to determine arguments | ||
try: | ||
with open(persistence_path, 'r') as persistence_file: | ||
java_kiosk_data = json.load(persistence_file) | ||
except Exception as exc: | ||
logger.error("Unable to open persistence file: %s", exc) | ||
logger.error("Please ensure that 'java-kiosk' was executed successfully before") | ||
parser.error("Unable to continue, arguments for previous 'java-kiosk' invocation are missing") | ||
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# Log previously used java-kiosk arguments | ||
logger.debug("Determined previous 'java-kiosk' working directory: %s", java_kiosk_data['cwd']) | ||
logger.debug("Determined previous 'java-kiosk' arguments: %s", java_kiosk_data['args']) | ||
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# Either execute java-kiosk or output final command | ||
if not args.dry_run: | ||
# Adjust working directory | ||
logger.debug('Switching work directory to previous location: %s', java_kiosk_data['cwd']) | ||
os.chdir(java_kiosk_data['cwd']) | ||
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# Modify environment for java-kiosk to skip persistence update and optionally enable debug | ||
java_kiosk_env = os.environ.copy() | ||
java_kiosk_env['JAVA_KIOSK_VOLATILE'] = 'true' | ||
java_kiosk_env['JAVA_KIOSK_DEBUG'] = 'true' if args.debug else '' | ||
logger.debug("Patched environment for 'java-kiosk': %s", java_kiosk_env) | ||
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# Use execve() to replace current process with java-kiosk | ||
exec_binary, exec_argv = java_kiosk_data['args'][0], java_kiosk_data['args'] | ||
logger.debug("Executing into [%s] using previous argv: %s", exec_binary, exec_argv) | ||
os.execve(exec_binary, exec_argv, java_kiosk_env) | ||
else: | ||
print(' '.join(map(lambda arg: shlex.quote(arg), java_kiosk_data['args']))) |