updates dependencies and refactors source to ESM

bin/index.js

@@ -1,29 +1,22 @@
 #!/usr/bin/env node
-"use strict";
+import { execute } from "../src/cli.js";
+import yargs from "yargs/yargs";
+import { hideBin } from "yargs/helpers";
 
-const yargs = require( "yargs" );
-const cli = require( "../src/cli" );
-const defaultPort = 8989;
-
-const options = yargs
+const config = yargs( hideBin( process.argv ) )
 	.usage( "Usage: $0 -f path/to/chordpro [-o path/to/file-or-folder]" )
 	.option( "f", { alias: "source", describe: "Path to file or folder of chordpro files to convert", type: "string", require: true } )
 	.option( "o", { alias: "out", describe: "Path to destination file. If none specified, the file will be saved in the same path as the chordpro file.", type: "string" } )
 	.option( "temp", { describe: "Specify path to temp folder for generating intermediate files.", type: "string" } )
 	.option( "html", { describe: "Save as HTML instead of PDF", type: "boolean" } )
-	.option( "columns", { describe: "Use two-column format", type: "boolean" } );
-//	.option( "wk", { describe: "Use wkhtmltopdf utility to convert to PDF (must be in your path)", type: "boolean" } );
-
-const config = options.argv;
+	.option( "columns", { describe: "Use two-column format", type: "boolean" } )
+	.parse();
 
-if ( isNaN( config.port ) ) {
-	config.port = defaultPort;
-	config.p = defaultPort;
-}
-
-cli.execute( config )
+console.log( config );
+execute( config )
 	.then( () => console.log( "finished" ) )
 	.catch( err => {
 		// options.showHelp();
 		console.log( err.message );
 	} );
+

eslint.config.js

@@ -0,0 +1,12 @@
+import rg from "eslint-config-reverentgeek";
+
+export default [
+	...rg.configs[ "node-esm" ],
+	{
+		rules: {
+			"n/no-unpublished-import": [ "error", {
+				allowModules: [ "eslint-config-reverentgeek" ]
+			} ]
+		}
+	}
+];