mono-runner/lib/resolvers/typescript.ts

A script runner for mono repos that just works. Use Mono to run separate compilers and dev servers for your packages at once, build only dependent packages or format everything at once.

import { join } from "path";
import { rootPath } from "../utils/packages";
import { PackageConfig, PackageResolver } from "./types";

export const typescriptResolver: PackageResolver = async({dependencies, path}, { loadDependency}) => {
	if(dependencies.includes("typescript")){
		const tscPath = join(rootPath, path, "tsconfig.json");
		const typescript = await loadDependency("typescript");
		if(!typescript){
			return null;
		}
		const ts = typescript.default;		
		const tsConfig = ts.readConfigFile(tscPath, ts.sys.readFile);
		
		if(!tsConfig){
			return null;
		}
		const out: PackageConfig = {
			outPath: null,
			srcPath: null
		};

		if(tsConfig?.config?.compilerOptions?.outDir){
			out.outPath = tsConfig.config.compilerOptions.outDir;
		}
		if(tsConfig?.config?.compilerOptions?.rootDir){
			out.srcPath = tsConfig.config.compilerOptions.rootDir;
		}

		if(dependencies.includes("mono-runner")){
			out.readyIPC = true;
		}
		return out;
	}else{
		return null;
	}
};