ical.js

Vendored copy of ical.js, by Philipp Kewisch and contributors (Mozilla Public License 2.0 — see the license header inside ical.min.js itself). Implements iCalendar (RFC 5545) parsing and generation (ICAL.Component, ICAL.Event, ICAL.Time, ICAL.Recur, etc). Bundled here verbatim so other addons in this repo don't each need to vendor their own copy.

This is a raw vendor dependency exposed as-is — there's no BeatLink-authored wrapper, since consumers (e.g. an agenda/calendar-export feature) use the upstream API directly.

Note this addon is MPL-2.0 licensed (not this repo's usual GPL-3.0-or-later), matching the license of the vendored code itself.

Two exports, same source file

Trilium's script bundler only lets a note require() another note when both are the same environment (env=frontend or env=backend) — there's no such thing as an environment-agnostic note. So this library ships the same ical.min.js content twice, as two separate notes pointing at the one file on disk (no source duplication, just note duplication, which is unavoidable):

Clone whichever export matches your own note's environment as a child, then require() it by its literal title (kept identical to the upstream filename on both variants):

const ical = require("ical.min.js")
const calendar = new ical.Component(["vcalendar", [], []])

As a browser-global script tag

The lib (frontend) note also carries a customResourceProvider: libIcal.js label, so it's fetchable as a plain script at custom/libIcal.js — useful for third-party browser libraries (e.g. a calendar widget's iCalendar plugin) that expect a global ICAL to already exist before they load, rather than an importable module. See libcalendarwidget@beatlink for a real consumer of this form. The backend note doesn't carry this label — backend scripts require() it directly, they never fetch a URL for it.