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gallery-dl/gallery_dl/postprocessor/exec.py

44 lines
1.1 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2018 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
"""Execute processes"""
from .common import PostProcessor
import subprocess
class ExecPP(PostProcessor):
def __init__(self, pathfmt, options):
PostProcessor.__init__(self)
try:
self.args = options["command"]
self.args[0] # test if 'args' is subscriptable
except (KeyError, IndexError, TypeError):
raise TypeError("option 'command' must be a non-empty list")
if options.get("async", False):
self._exec = subprocess.Popen
def run(self, pathfmt):
self._exec([
arg.format_map(pathfmt.keywords)
for arg in self.args
])
def _exec(self, args):
retcode = subprocess.Popen(args).wait()
if retcode:
self.log.warning(
"executing '%s' returned non-zero exit status %d",
" ".join(args), retcode)
__postprocessor__ = ExecPP