Mastodon v4.3.x (<4.3.4) docker post character limit change

postLimit.sh

#!/bin/bash
# Mastodon v4.3.x docker character limit change
# Does *NOT* word with >= 4.3.4 as the handling was changed
# Based on https://mpp-service.de/en/mastodon-character-limit-increase-in-a-docker-environment/
# Based on https://fouquet.me/2024/10/10/mastodon-4-3-char-limit
# ./postLimit.sh 2500 → change post limit to 2500
# Must be executed in the directory Mastodons docker-compose.yaml is located

set -e

POST_LIMIT=${1:-2500}
export TMPDIR=/tmp

docker-compose exec --user=root web sed -i "s/max_characters'], [0-9]\+/max_characters'], $POST_LIMIT)/g" app/javascript/mastodon/features/compose/containers/compose_form_container.js
docker-compose exec --user=root web sed -i "s/MAX_CHARS = [0-9]\+/MAX_CHARS = $POST_LIMIT/g" app/validators/status_length_validator.rb

docker-compose restart