index.ts

// loads processor list and can build namespace object for items on list

import { readFileSync } from "fs";
// Will contain trailing slash
// const __dirname = new URL('.', import.meta.url).pathname;

type  NSlibrary ={[key: string]:{}};
type Profile={
    id:string,
    description:string,
    modules:[string]
};

// cache last used
var lastName:string="";
var lastNS:NSlibrary={};

function library(name:string):NSlibrary {
    if(lastName=== name) {return lastNS;}
    const profile = loadjson("./profiles.json").find((e:Profile)=>e.id===name);
    const ns = {};
    if (profile) {
        //console.time("namespaces: "+name)
        const mods = profile.modules;

        mods.forEach( function (uri:string) {
            const mod = loadjson(uri);
            //console.log("procmod: ",uri)
            loadpackage(ns, mod);
        });
        //console.timeEnd("namespaces: "+name)
    };
    lastNS=ns;
    lastName=name;
    return ns;
};

function profiles() :[Profile]{
    return loadjson("./profiles.json");
};

// for every namespace key in package create module entry in namespaces
function loadpackage(namespaces:{[key: string]:{}}, pkg:{}) {
    for (const [ns, value] of  (Object.entries(pkg) as [string, object][])) {
        //   if (namespaces.hasOwnProperty(ns)) console.log("existing: " + ns);
        namespaces[ns] = value;
    }
};

// path  relative to run location
// https://github.com/eslint/eslint/discussions/15305#discussioncomment-2400923
function loadjson(path:string) {
    const p = __dirname + "/" + path;
    return JSON.parse(readFileSync(p, 'utf8'));
};

export { profiles, library };