mono-runner/lib/resolvers/vite.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";
import { existsSync } from "fs";

export const viteResolver: PackageResolver = async({dependencies, path}, {loadDependency, loadBundled}) => {
	if(dependencies.includes("vite")){

		const packageRoot = join(rootPath, path);
		const configPathJs = join(packageRoot, "vite.config.js");
		const configPathTs = join(packageRoot, "vite.config.ts");
		const configPath = existsSync(configPathTs) ? "vite.config.ts" : existsSync(configPathJs) ? "vite.config.js" : null;

		if(!configPath){
			return null;
		}

		const viteConfig = await loadBundled(configPath).catch(() => null);

		if(!viteConfig || !viteConfig.default){
			return null;
		}
		let parsed = viteConfig.default;
		if(typeof viteConfig.default === "function"){
			parsed = await Promise.resolve(viteConfig.default({command: "build", mode: "production", ssrBuild: true}));
		}
		
		if(!parsed){
			return null;
		}

		const out: PackageConfig = {
			outPath: "dist",
			srcPath: "."
		};
		if(parsed.build?.outDir){
			out.outPath = parsed.build.outDir;
		}
		if(parsed.root){
			out.srcPath = parsed.root;
		}
		return out;
	}else{
		return null;
	}
};