Add support for absolute paths:

in imports:  (import * from "src/index.ts") instead od (import * from "../../../../../index.ts")

esbuild.cjs

@@ -1,14 +1,44 @@
 const { build } = require("esbuild");
 const glob = require("tiny-glob");
+const { promises: fs } = require("node:fs");
+const { extname, resolve, relative } = require("node:path");
 
 const watch = process.argv.at(-1) === "--watch";
 
+// plugin that rewrites the import paths so in typescript we can use
+//
+//    import smth from src/index.ts
+//
+// instead of providing relative paths
+const handle_absolute_paths = (project_dir) => ({
+	name: "sealgen-rewrite-asset-imports",
+	setup(build) {
+		build.onLoad({ filter: /\.tsx?$/ }, async (args) => {
+			let contents = await fs.readFile(args.path, "utf8");
+			const regex_import = new RegExp(
+				`^import ([^ ]+, )?(\\w+|{[^}]+}) from "([^"]+)";`,
+				"gm"
+			);
+			contents = contents.replaceAll(regex_import, (line) => {
+				const replaced = line.replace(
+					`"src/`,
+					`"` +
+						relative(args.path, resolve(project_dir, "./lib/src")) +
+						"/"
+				);
+				return replaced;
+			});
+			return {
+				contents,
+				loader: extname(args.path) === ".tsx" ? "tsx" : "ts",
+			};
+		});
+	},
+});
+
 (async () => {
 	let entryPoints = Object.fromEntries(
-		(await glob("./src/**/*.ts")).map((e) => [
-			e.replace(/\.ts$/, ""),
-			e,
-		])
+		(await glob("./src/**/*.ts")).map((e) => [e.replace(/\.ts$/, ""), e])
 	);
 	build({
 		entryPoints,
@@ -19,5 +49,6 @@ const watch = process.argv.at(-1) === "--watch";
 		watch,
 		target: "node16",
 		format: "esm",
+		plugins: [handle_absolute_paths(__dirname)],
 	});
-})();
+})();

src/example.test.ts

@@ -1,4 +1,4 @@
-import { Example } from "./index.js";
+import { Example } from "src/index.js";
 import * as assert from "assert";
 
 describe("Example", () => {

tsconfig.json

@@ -15,8 +15,11 @@
 		"declarationDir": "@types",
 		"resolveJsonModule": true,
 		"sourceMap": true,
-		"skipLibCheck": true
+		"skipLibCheck": true,
+		"paths": {
+			"src/*": ["./src/*"]
+		}
 	},
-	"include": ["src/**/*", ],
+	"include": ["src/**/*"],
 	"exclude": ["node_modules/**"]
 }