devedeng-extended/src/devedeng/vlc.py
Luna 6b624a72cd Narrow bare except blocks so real errors aren't swallowed (roadmap A4)
Replaced all 46 bare 'except:' across the package with specific exception
types, and logged the cases that indicate a real problem:

- config load/save: FileNotFoundError is the silent first-run case; other
  OSError/ValueError/UnicodeDecodeError are logged.
- ffprobe/avprobe: JSON parse failures are now logged (previously a media
  file that ffprobe couldn't read just silently failed to import); decode
  fallbacks -> UnicodeDecodeError; duration parse -> ValueError/TypeError/
  KeyError; install check -> OSError/SubprocessError.
- executor: pre_/post_function and progress-polling hooks now use hasattr
  checks, and a real exception inside a defined hook is logged instead of
  swallowed; decode fallbacks and numeric parses narrowed.
- best-effort filesystem ops (makedirs/unlink) -> OSError.
- all backend check_is_installed probes -> OSError/SubprocessError.
- shutdown: also fixes a latent NameError ('failure' was only set in the
  except branch, so a successful logind PowerOff would crash the handler).

No bare 'except:' remain. Full suite (51 tests) green; GUI starts clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-07 01:02:33 -07:00

59 lines
1.7 KiB
Python

# Copyright 2014 (C) Raster Software Vigo (Sergio Costas)
#
# This file is part of DeVeDe-NG
#
# DeVeDe-NG is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3
# as published by the Free Software Foundation.
#
# DeVeDe-NG is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
import subprocess
import devedeng.configuration_data
import devedeng.executor
class vlc(devedeng.executor.executor):
supports_analize = False
supports_play = True
supports_convert = False
supports_menu = False
supports_mkiso = False
supports_burn = False
display_name = "VLC"
@staticmethod
def check_is_installed():
try:
handle = subprocess.Popen(
["vlc", "-h"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(stdout, stderr) = handle.communicate()
if 0 == handle.wait():
return True
else:
return False
except (OSError, subprocess.SubprocessError):
return False
def __init__(self):
devedeng.executor.executor.__init__(self)
self.config = devedeng.configuration_data.configuration.get_config()
def play_film(self, file_name):
command_line = ["vlc", "--play-and-exit", file_name]
self.launch_process(command_line)
def process_stdout(self, data):
return
def process_stderr(self, data):
return