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gallery-dl/gallery_dl/postprocessor/exec.py

101 lines
2.7 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2018-2023 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
from .. import util, formatter
import os
import re
if util.WINDOWS:
def quote(s):
return '"' + s.replace('"', '\\"') + '"'
else:
from shlex import quote
class ExecPP(PostProcessor):
def __init__(self, job, options):
PostProcessor.__init__(self, job)
if options.get("async", False):
self._exec = self._exec_async
args = options["command"]
if isinstance(args, str):
self.args = args
self._sub = re.compile(r"\{(_directory|_filename|_path|)\}").sub
execute = self.exec_string
else:
self.args = [formatter.parse(arg) for arg in args]
execute = self.exec_list
events = options.get("event")
if events is None:
events = ("after",)
elif isinstance(events, str):
events = events.split(",")
job.register_hooks({event: execute for event in events}, options)
self._init_archive(job, options)
def exec_list(self, pathfmt):
archive = self.archive
kwdict = pathfmt.kwdict
if archive and archive.check(kwdict):
return
kwdict["_directory"] = pathfmt.realdirectory
kwdict["_filename"] = pathfmt.filename
kwdict["_path"] = pathfmt.realpath
args = [arg.format_map(kwdict) for arg in self.args]
args[0] = os.path.expanduser(args[0])
self._exec(args, False)
if archive:
archive.add(kwdict)
def exec_string(self, pathfmt):
archive = self.archive
if archive and archive.check(pathfmt.kwdict):
return
self.pathfmt = pathfmt
args = self._sub(self._replace, self.args)
self._exec(args, True)
if archive:
archive.add(pathfmt.kwdict)
def _exec(self, args, shell):
self.log.debug("Running '%s'", args)
retcode = util.Popen(args, shell=shell).wait()
if retcode:
self.log.warning("'%s' returned with non-zero exit status (%d)",
args, retcode)
def _exec_async(self, args, shell):
self.log.debug("Running '%s'", args)
util.Popen(args, shell=shell)
def _replace(self, match):
name = match.group(1)
if name == "_directory":
return quote(self.pathfmt.realdirectory)
if name == "_filename":
return quote(self.pathfmt.filename)
return quote(self.pathfmt.realpath)
__postprocessor__ = ExecPP