Add YouTube subscription to OPML tooling

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Wesley Moore 2024-05-06 10:33:43 +10:00
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.gitignore vendored
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Makefile Normal file
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subscriptions.txt: subscriptions.json
$(JAQ) --raw-output '.[]' subscriptions.json > $@
subscriptions.curl: subscriptions.json
$(JAQ) --raw-output '.[] | (split("/") | last) as $$name | . | "url \(.)\noutput \($$name).html"' subscriptions.json > $@
fetch: subscriptions.curl
curl --location --output-dir html --create-dirs --rate 1/s --config subscriptions.curl
channel-json: subscriptions.txt
# nproc is not portable :-/
xargs -n1 --max-procs=$$(nproc) --arg-file subscriptions.txt --verbose ./generate-json-opml
# turn all the channel json files into an OPML file
./generate-opml > $@
.PHONY: channel-json subscriptions.opml

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# YouTube Subscriptions to OPML
This repo contains a small collection of scripts that I used to turn my YouTube subscriptions into an OPML file for import in to [Feedbin].
## Dependencies
The scripts have only been run on a Linux system using GNU coreutils. They will
probably need some tweaking to run on other UNIX-like systems.
- [Scraper](
- [jaq](
- curl
- Python
- awk
- GNU make (I haven't tested non-GNU make)
## Usage
1. Visit your [subscriptions page](
2. Repeatedly scroll to the end of the page to make them all load
3. Run the following in the JavaScript console to copy the list of subscriptions to you clipboard as JSON array:
copy(JSON.stringify(Array.from(new Set(''), (link) => link.href))).filter((x) => !x.includes('/channel/')), null, 2))
**Note:** I only tested the above on Firefox.
Also why do this instead of processing the subscriptions.csv from Google Takeout?
1. Takeout generates multiple gigabytes of archives I have to download to get the CSV file.
2. It's slow to generate. This process can be done whenever you want.
4. Paste the list of subscriptions into `subscriptions.json`.
5. Run `make fetch` to fetch the channel pages of all the subscriptions. This only needs to be run once.
6. Run `make channel-json` to extract info from each channel page.
7. Run `make subscriptions.opml` to generate the OPML file.

generate-json-opml Executable file
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set -eu
NAME=$(echo "$URL" | awk -F / '{ print $NF }')
CHANNEL_ID=$(scraper -a content 'meta[property="og:url"]' < "$HTML" | awk -F / '{ print $NF }')
TITLE=$(scraper -a content 'meta[property="og:title"]' < "$HTML")
json_escape() {
echo "$1" | jaq --raw-input .
JSON_TITLE=$(json_escape "$TITLE")
JSON_XML_URL=$(json_escape "$XML_URL")
JSON_URL=$(json_escape "$URL")
printf '{"title": %s, "xmlUrl": %s, "htmlUrl": %s}\n' "$JSON_TITLE" "$JSON_XML_URL" "$JSON_URL" > json/"$NAME".json

generate-opml Executable file
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#!/usr/bin/env python
import email.utils
import glob
import json
import xml.etree.ElementTree as ET
# This is what we're aiming to generate:
# <?xml version="1.0" encoding="UTF-8"?>
# <opml version="1.0">
# <head>
# <title>RSS subscriptions for</title>
# <dateCreated>Sun, 05 May 2024 02:54:31 +0000</dateCreated>
# <ownerEmail></ownerEmail>
# </head>
# <body>
# <outline text="3D Printing" title="3D Printing">
# <outline text="CadHub Blog" title="CadHub Blog" type="rss" xmlUrl="" htmlUrl=""/>
# </outline>
# </body>
# </opml>
opml = ET.Element("opml")
head = ET.SubElement(opml, "head")
title = ET.SubElement(head, "title")
title.text = "YouTube Subscription"
dateCreated = ET.SubElement(head, "dateCreated")
dateCreated.text = email.utils.formatdate(timeval=None, localtime=True)
body = ET.SubElement(opml, "body")
youtube = ET.SubElement(body, "outline", {"title": "YouTube", "text": "YouTube"})
for path in glob.glob("json/*.json"):
with open(path) as f:
info = json.load(f)
ET.SubElement(youtube, "outline", info, type="rss", text=info["title"])
print(ET.tostring(opml, encoding="unicode", xml_declaration=True))