make a binary of `now` using enclosejs (#81)

* make a binary of `now` using enclosejs

* pin enclosejs version

bin/now

@@ -39,7 +39,12 @@ if (commands.has(cmd)) {
   args = args.concat(process.argv.slice(2));
 }
 
-const bin = resolve(__dirname, 'now-' + cmd);
+let bin = resolve(__dirname, 'now-' + cmd);
+if (process.enclose) {
+  args.unshift("--entrypoint", bin);
+  bin = process.execPath;
+}
+
 const proc = spawn(bin, args, { stdio: 'inherit', customFds: [0, 1, 2] });
 proc.on('close', (code) => exit(code));
 proc.on('error', () => exit(1));

enclose.js

@@ -0,0 +1,5 @@
+module.exports = {
+  scripts: [
+    "build/bin/now-*"
+  ]
+};

gulpfile.babel.js

@@ -3,6 +3,7 @@ import del from 'del';
 import babel from 'gulp-babel';
 import uglify from 'gulp-uglify';
 import help from 'gulp-task-listing';
+import { exec as enclose } from 'enclose';
 
 gulp.task('help', help);
 
@@ -23,6 +24,14 @@ gulp.task('compile-bin', () =>
   .pipe(uglify())
   .pipe(gulp.dest('build/bin')));
 
+gulp.task('enclose', ['compile'], (cb) => {
+  enclose([
+    'build/bin/now',
+    '-c', 'enclose.js',
+    '-o', 'build/now'
+  ], cb);
+});
+
 gulp.task('watch-lib', () => gulp.watch('lib/*.js', ['compile-lib']));
 gulp.task('watch-bin', () => gulp.watch('bin/*', ['compile-bin']));
 gulp.task('clean', () => del(['build']));

package.json

@@ -83,6 +83,7 @@
     "babel-preset-es2015": "6.9.0",
     "babel-register": "6.9.0",
     "del": "2.2.0",
+    "enclose": "2.1.0",
     "eslint": "2.12.0",
     "eslint-config-standard": "5.3.1",
     "eslint-plugin-promise": "1.3.2",
@@ -97,7 +98,8 @@
   "scripts": {
     "start": "gulp",
     "test": "ava",
-    "prepublish": "gulp compile"
+    "prepublish": "gulp compile",
+    "enclose": "gulp enclose"
   },
   "ava": {
     "failFast": true,