Media Pipeline Pitfalls

Torrents — Do Not Rename Files

Never rename torrent source files or folders while a torrent is active. Transmission tracks files by path. Renaming breaks the association and causes re-download or stalled seeding.

torrent-set-location Updates downloadDir

torrent-set-location in the Transmission RPC updates downloadDir in the torrent metadata. Use this when moving completed files, not a manual rename. Sequence:

Move files to new location on disk
Call torrent-set-location with the new path + move=false
Verify torrent goes back to seeding state

Router Creates Subdirectories — Transmission downloadDir Stale

router.py creates subdirectory per title under the genre folder (lowercase name, e.g. /media/cartoons/бобик в гостях у барбоса/). Transmission still holds the old downloadDir pointing to the parent (/media/cartoons/). Result: torrents show "No data found" error.

Fix:

Find the actual subdirectory on disk
Call torrent-set-location with the subdirectory path + move=false
Transmission verifies and resumes seeding

Alpine Container — No Docker-in-Docker

on-download-complete.sh runs inside the Transmission Alpine container. Docker CLI is not available there — using docker run inside the container fails silently or errors. Python 3.14 IS available in the Alpine image.

Solution: sync.py (Python3, ~190 lines) in the same container:

Reads config.json for sorting rules + credentials (same file as linker container)
Queries TMDB for genre routing
Creates hardlinks + calls Transmission RPC torrent-set-location Location: /srv/dev-disk-by-uuid-49e8f586-3839-4c5d-a1e1-58bfc3579ade/docker/media-pipeline/sync.py

General Rules

Never touch source files/folders (media-pipeline USER.md rule)
resolve-manual is emergency-only
NFO files: do not create manually; let the pipeline handle them
Never delete test files from the pipeline project

2.2 KiB Raw Blame History