main.ts

// deno-lint-ignore-file camelcase
import { writableStreamFromWriter } from "https://deno.land/[email protected]/streams/mod.ts";

const text = await Deno.readTextFile("./mods.txt");
const [query, ...urls] = text.split(/\n/).map((l) => l.trim()).filter((l) =>
  l.length > 0 && !l.startsWith("#")
);
const [loader, version] = query.split(" ");

const HOST = "https://api.modrinth.com";
const API = `${HOST}/api/v1`;

const URL_REGEX = /https:\/\/modrinth\.com\/mod\/(.+)/;

type VersionFile = {
  hashes: Record<string, string>;
  url: string;
  filename: string;
  primary: boolean;
};

type Version = {
  id: string;
  mod_id: string;
  author_id: string;
  featured: string;
  name: string;
  version_number: string;
  changelog?: string;
  date_published: number;
  downloads: number;
  version_type: string;
  files: VersionFile[];
  dependencies: {
    dependency_type: "required" | "optional" | "incompatable";
    version_id?: string;
    project_id?: string;
  }[];
  game_versions: string[];
  loaders: string[];
};

async function getDownload(idp: string) {
  console.log(`Getting mod info for '${idp}'`);
  const [id, options = ""] = idp.split("#");
  // const modInfo = await fetch(`${API}/search/${id}`).then(res => res.json())

  console.log(`Getting download info for '${idp}'`);
  const downloadInfo: Version[] = await fetch(`${API}/mod/${id}/version`)
    .then((res) => res.json());
    
  const found = options.includes("force")
    ? downloadInfo.find((l) => l.loaders.includes(loader))
    : downloadInfo.find((dl) =>
      dl.game_versions.some((v) => v.includes(version))
    );

  if (!found) {
    console.error(`No version '${version}' found for ${id}`);
    return;
  }

  const fileInfo = found.files.at(
    found.game_versions.findIndex((v) => v.includes(version)) %
      found.files.length,
  )!;
  console.log(`Downloading '${fileInfo.filename}' ${options}`);
  const data = await fetch(fileInfo.url);
  const file = await Deno.open(`./mods/${fileInfo.filename}`, {
    write: true,
    create: true,
  });
  const writableStream = writableStreamFromWriter(file);
  return data.body!.pipeTo(writableStream);
}

await Promise.all(urls.map((url) => url.match(URL_REGEX)![1]).map(getDownload));

mods.txt

fabric 1.18.2

# Core
https://modrinth.com/mod/fabric-api

# Performance
https://modrinth.com/mod/sodium
https://modrinth.com/mod/lithium
https://modrinth.com/mod/dynamic-fps
https://modrinth.com/mod/ferrite-core
https://modrinth.com/mod/starlight
https://modrinth.com/mod/ebe

# Tweaks/Fixes
https://modrinth.com/mod/hatlist
https://modrinth.com/mod/tiefix
https://modrinth.com/mod/better-mount-hud
https://modrinth.com/mod/statssearch
# https://modrinth.com/mod/bedrockIfy
# https://modrinth.com/mod/lambdacontrols
# https://modrinth.com/mod/lambdynamiclights
# https://modrinth.com/mod/inspecio
# https://modrinth.com/mod/brb
# https://modrinth.com/mod/easiercrafting

# Libraries / Dependencies / Modding
https://modrinth.com/mod/modmenu
# https://modrinth.com/mod/modmanager
https://modrinth.com/mod/fabric-language-kotlin

# Clientside
https://modrinth.com/mod/appleskin
https://modrinth.com/mod/ears
# https://modrinth.com/mod/presence-footsteps
# https://modrinth.com/mod/auto-third-person
# https://modrinth.com/mod/vistas
# https://modrinth.com/mod/void-fog

# Forced
https://modrinth.com/mod/fabulousclouds#force
# https://modrinth.com/mod/cleardespawn#force

# not 1.18 :(
# https://modrinth.com/mod/blame-fabric
# https://modrinth.com/mod/no-fade/versions
# https://modrinth.com/mod/fade-in-chunks
# https://modrinth.com/mod/custom-fog
# https://modrinth.com/mod/better-third-person
# https://modrinth.com/mod/smooth-chunks
# https://modrinth.com/mod/eating-animation#force
# [select.chunk-loading]