yt_dlp/postprocessor/execafterdownload.py

   1 from __future__ import unicode_literals
   2
   3 import subprocess
   4
   5 from .common import PostProcessor
   6 from ..compat import compat_shlex_quote
   7 from ..utils import (
   8     encodeArgument,
   9     PostProcessingError,
  10 )
  11
  12
  13 class ExecAfterDownloadPP(PostProcessor):
  14
  15     def __init__(self, downloader, exec_cmd):
  16         super(ExecAfterDownloadPP, self).__init__(downloader)
  17         self.exec_cmd = exec_cmd
  18
  19     @classmethod
  20     def pp_key(cls):
  21         return 'Exec'
  22
  23     def parse_cmd(self, cmd, info):
  24         tmpl, tmpl_dict = self._downloader.prepare_outtmpl(cmd, info)
  25         if tmpl_dict:  # if there are no replacements, tmpl_dict = {}
  26             return tmpl % tmpl_dict
  27
  28         # If no replacements are found, replace {} for backard compatibility
  29         if '{}' not in cmd:
  30             cmd += ' {}'
  31         return cmd.replace('{}', compat_shlex_quote(
  32             info.get('filepath') or info['_filename']))
  33
  34     def run(self, info):
  35         cmd = self.parse_cmd(self.exec_cmd, info)
  36         self.to_screen('Executing command: %s' % cmd)
  37         retCode = subprocess.call(encodeArgument(cmd), shell=True)
  38         if retCode != 0:
  39             raise PostProcessingError('Command returned error code %d' % retCode)
  40         return [], info