yt_dlp/postprocessor/exec.py

   1 from .common import PostProcessor
   2 from ..compat import compat_shlex_quote
   3 from ..utils import Popen, PostProcessingError, variadic
   4
   5
   6 class ExecPP(PostProcessor):
   7
   8     def __init__(self, downloader, exec_cmd):
   9         PostProcessor.__init__(self, downloader)
  10         self.exec_cmd = variadic(exec_cmd)
  11
  12     def parse_cmd(self, cmd, info):
  13         tmpl, tmpl_dict = self._downloader.prepare_outtmpl(cmd, info)
  14         if tmpl_dict:  # if there are no replacements, tmpl_dict = {}
  15             return self._downloader.escape_outtmpl(tmpl) % tmpl_dict
  16
  17         filepath = info.get('filepath', info.get('_filename'))
  18         # If video, and no replacements are found, replace {} for backard compatibility
  19         if filepath:
  20             if '{}' not in cmd:
  21                 cmd += ' {}'
  22             cmd = cmd.replace('{}', compat_shlex_quote(filepath))
  23         return cmd
  24
  25     def run(self, info):
  26         for tmpl in self.exec_cmd:
  27             cmd = self.parse_cmd(tmpl, info)
  28             self.to_screen(f'Executing command: {cmd}')
  29             _, _, return_code = Popen.run(cmd, shell=True)
  30             if return_code != 0:
  31                 raise PostProcessingError(f'Command returned error code {return_code}')
  32         return [], info
  33
  34
  35 # Deprecated
  36 class ExecAfterDownloadPP(ExecPP):
  37     def __init__(self, *args, **kwargs):
  38         super().__init__(*args, **kwargs)
  39         self.deprecation_warning(
  40             'yt_dlp.postprocessor.ExecAfterDownloadPP is deprecated '
  41             'and may be removed in a future version. Use yt_dlp.postprocessor.ExecPP instead')