Bundle sources in the package (#104)

lib/install.js

@@ -1,4 +1,5 @@
 'use strict';
+const path = require('path');
 const binBuild = require('bin-build');
 const log = require('logalot');
 const bin = require('.');
@@ -10,12 +11,16 @@ bin.run(['--version']).then(() => {
 	log.warn('optipng pre-build test failed');
 	log.info('compiling from source');
 
-	binBuild.url('https://downloads.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz', [
+	// From https://sourceforge.net/projects/optipng/files/OptiPNG/
+	binBuild.file(path.resolve(__dirname, '../vendor/source/optipng.tar.gz'), [
 		`./configure --with-system-zlib --prefix="${bin.dest()}" --bindir="${bin.dest()}"`,
 		'make install'
 	]).then(() => {
 		log.success('optipng built successfully');
 	}).catch(error => {
 		log.error(error.stack);
+
+		// eslint-disable-next-line unicorn/no-process-exit
+		process.exit(1);
 	});
 });

package.json

@@ -33,7 +33,8 @@
   "files": [
     "index.js",
     "cli.js",
-    "lib"
+    "lib",
+    "vendor/source"
   ],
   "keywords": [
     "imagemin",

test/test.js

@@ -18,7 +18,7 @@ test('rebuild the optipng binaries', async t => {
 
 	const tmp = tempy.directory();
 
-	await binBuild.url('http://downloads.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz', [
+	await binBuild.file(path.resolve(__dirname, '../vendor/source/optipng.tar.gz'), [
 		`./configure --with-system-zlib --prefix="${tmp}" --bindir="${tmp}"`,
 		'make install'
 	]);