Restructure project files

src/util.mjs

@@ -1,30 +0,0 @@
-// misc helpers
-
-import {execSync} from 'node:child_process';
-
-/**
- * Converts a string from UTF-8 to base64.
- * @param {string} str
- * @returns {string}
- */
-const toBase64 = str => Buffer.from(str, 'utf-8').toString('base64');
-
-/**
- * terrible terrible terrible string diff helper for debugging
- * @param {string} a
- * @param {string} b
- */
-export function diff (a, b) {
-	// base64 input strings before passing to shell to avoid escaping issues
-	// https://stackoverflow.com/a/60221847
-	// use tail to cut off useless file info lines
-	execSync(String.raw`bash <<- EOF
-		diff --color=always -u \
-			<(echo "${toBase64(a)}" | base64 -d) \
-			<(echo "${toBase64(b)}" | base64 -d) \
-		| tail -n +3
-	EOF`, {
-		// display result directly in terminal
-		stdio: 'inherit',
-	});
-}