#!/bin/sh
# yt-dlp run from a SOURCE tree — the image's hook for substituting your own
# yt-dlp (a patched checkout) without rebuilding the image.
#
#   YTDLP_BIN=/usr/local/bin/yt-dlp-from-source           (.env)
#   docker compose -f docker-compose.yml -f docker-compose.ytdlp.yml up -d
#
# docker-compose.ytdlp.yml mounts YTDLP_SOURCE_HOST_DIR (the checkout: the
# directory that holds the `yt_dlp/` package) read-only at /opt/yt-dlp-src.
# YTDLP_SOURCE_DIR moves that mount point. The python is the image's, with
# yt-dlp's optional modules installed beside it (the Dockerfile's apt line).
#
# Linked into /usr/local/bin by the Dockerfile; RUNNING_IN_DOCKER.md,
# "Substituting yt-dlp".
src="${YTDLP_SOURCE_DIR:-/opt/yt-dlp-src}"
if [ ! -f "${src}/yt_dlp/__init__.py" ]; then
	echo "yt-dlp-from-source: no yt_dlp package in ${src} — mount a yt-dlp checkout there (docker-compose.ytdlp.yml, YTDLP_SOURCE_HOST_DIR)" >&2
	exit 127
fi
PYTHONPATH="${src}${PYTHONPATH:+:${PYTHONPATH}}" exec python3 -m yt_dlp "$@"