1 files changed, 43 insertions, 0 deletions
diff --git a/gallery_dl/postprocessor/exec.py b/gallery_dl/postprocessor/exec.py
new file mode 100644
index 0000000..c86b480
--- /dev/null
+++ b/gallery_dl/postprocessor/exec.py
@@ -0,0 +1,43 @@
+# -*- 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