Self update for youtube-dl

[Rpsl]

I think can add additional cron job @daily for execution self update of youtube-dl

$ youtube-dl -U 
youtube-dl is up-to-date (2020.03.24)

[726a67]

Agreed, this can particularly frustrate usage via docker, as users pulling the latest image from dockerhub are limited to the version of youtube-dl explicitly installed by the current podsync Dockerfile (2020.01.24).

A cron job used to regularly self-update youtube-dl could solve this problem, but it might also be worth considering the use of pip to install the latest version of youtube-dl at image build time -- the latter would probably better align with standard docker deployment methodologies, e.g.:

FROM alpine:3.10

WORKDIR /app/
RUN \
    apk --no-cache add ca-certificates python py-pip ffmpeg && \
    pip install --upgrade pip && \
    pip install youtube-dl
COPY podsync /app/podsync
CMD ["/app/podsync"]

[mxpv]

Can you guys give it a try? (you can download latest non-release binaries from here: https://github.com/mxpv/podsync/actions/runs/82314116)

[726a67]

@mxpv Could you upload/tag a 'preview' or 'test' image to dockerhub containing the binary you'd like me to test? I only deploy podsync via docker, so testing the binary directly is problematic.

[mxpv]

Will add: #135

[DeXteRrBDN]

Not exactly self update, but at least update for those like me that use only the Docker version:

Managed to work with current Docker version and latest youtube-dl, just added the following volume mapping to docker-compose.yml:

- ./youtube-dl:/usr/bin/youtube-dl

version: '2.2'

services:
  podsync:
    container_name: podsync
    image: mxpv/podsync:latest
    restart: always
    ports:
      - 80:80
    volumes:
      - ./data:/app/data/
      - ./config.toml:/app/config.toml
      - ./youtube-dl:/usr/bin/youtube-dl

Then downloaded youtube-dl from latest version on GitHub and it started to work. I can update youtube-dl manually now using docker image!

[mxpv]

Self update is implemented in 2.3.0.
Use the following in your config file:

[downloader]
self_update = true # Optional, auto update youtube-dl every 24 hours