Allow filtering benchmark tests with CLI args

bench/index.js

@@ -1,3 +1,4 @@
+const {argv} = require('yargs');
 const prettyMs = require('pretty-ms');
 const Vain = require('..');
 
@@ -5,6 +6,22 @@ const isCI = process.env.CI;
 
 const xpub = 'xpub6EDZZg3os4RaLxfPpnGBb7ajm6ccyjRs3PGZ5jNK31rPnbpyKb7dc87cEPaLEjFYDBGCQT8VMm8q8MVj2tj7HPBu8syxu82cdHLCNaQmT42';
 
+// Filter benchmark tests with arguments like:
+// $ npm run bench
+// $ npm run bench -- --key-format=wif
+// $ npm run bench -- --address-format=p2pkh
+// $ npm run bench -- --key-format=wif --address-format=p2pkh
+const filterOptionsFromArgs = options => {
+	if (
+		(argv.keyFormat && argv.keyFormat !== options.keyFormat) ||
+		(argv.addressFormat && argv.addressFormat !== options.addressFormat)
+	) {
+		return false;
+	}
+
+	return true;
+};
+
 const options = [
 	{
 		keyFormat: 'wif',
@@ -65,7 +82,7 @@ const options = [
 		m: 2,
 		prefix: 'BTC'
 	}
-];
+].filter(filterOptionsFromArgs);
 
 options.forEach(options => {
 	console.log();

package.json

@@ -37,6 +37,7 @@
   "dependencies": {
     "bip39": "^3.0.2",
     "bitcoinjs-lib": "^5.0.3",
-    "tiny-emitter": "^2.1.0"
+    "tiny-emitter": "^2.1.0",
+    "yargs": "^14.2.0"
   }
 }