Merge pull request #206 from barrucadu/nya/backup-youtube

[nyarlathotep] Add a youtube video "backup" script

hosts/nyarlathotep/configuration.nix

@@ -54,7 +54,10 @@ in
 
   nixfiles.backups.enable = true;
   nixfiles.backups.environmentFile = config.sops.secrets."nixfiles/backups/env".path;
-  nixfiles.backups.pythonScripts.share = fileContents ./jobs/backup-share.py;
+  nixfiles.backups.pythonScripts = {
+    share = fileContents ./jobs/backup-share.py;
+    youtube = fileContents ./jobs/backup-youtube.py;
+  };
   sops.secrets."nixfiles/backups/env" = { };
 
 

hosts/nyarlathotep/jobs/backup-youtube.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+
+"""Youtube "backup" script - generates a script to download videos.
+"""
+
+import os
+import shlex
+
+SOURCE_DIR = "/mnt/nas/misc/youtube"
+VIDEO_URL = "https://www.youtube.com/watch?v="
+
+with open("download-videos.sh", "w") as f:
+    print("#!/bin/sh", file=f)
+    print("", file=f)
+
+    for dirpath, dirnames, filenames in os.walk(SOURCE_DIR, topdown=True):
+        for dirname in dirnames:
+            print(f"mkdir {shlex.quote(os.path.join(dirpath, dirname))}", file=f)
+        for filename in filenames:
+            # filenames are of the form "title [id].ext"
+            name_pattern = filename.split("[")[-2] + "[%(id)s].%(ext)s"
+            url = VIDEO_URL + filename.split("[")[-1].split("]")[0]
+            print(
+                f"yt-dlp -P {shlex.quote(dirpath)} -o {shlex.quote(name_pattern)} {shlex.quote(url)}",
+                file=f,
+            )