Clean up arrow parens

.eslintrc

@@ -1,3 +1,9 @@
 {
-  extends: ['standard']
+  extends: ['standard'],
+  rules: {
+    "arrow-parens": [2, "as-needed"],
+    "no-unused-vars": [2, {
+      "argsIgnorePattern": "_"
+    }]
+  }
 }

lib/fetch.js

@@ -17,7 +17,7 @@ module.exports = function fetch (dir, tarball, shasum, log) {
 
     stream
       .on('response', start)
-      .on('data', (_) => { actualShasum.update(_) })
+      .on('data', _ => { actualShasum.update(_) })
       .on('error', reject)
       .pipe(gunzip()).on('error', reject)
       .pipe(tar.extract(dir, { strip: 1 })).on('error', reject)
@@ -30,7 +30,7 @@ module.exports = function fetch (dir, tarball, shasum, log) {
 
       if ('content-length' in res.headers) {
         size = +res.headers['content-length']
-        res.on('data', (chunk) => {
+        res.on('data', chunk => {
           downloaded += chunk.length
           log('downloading', { done: downloaded, total: size })
         })

lib/install.js

@@ -49,13 +49,13 @@ module.exports = function install (ctx, pkg, modules, options) {
   var tmp = join(ctx.tmp, getUuid()) // 'node_modules/.tmp/000-11...'
 
   return fs.stat(join(modules, pkgSpec.name, 'package.json'))
-    .catch((err) => {
+    .catch(err => {
       if (err.code !== 'ENOENT') throw err
       return resolve(pkgSpec)
         .then(set)
         .then(_ => log('resolved', pkgData))
         .then(_ => fs.stat(join(target, 'package.json'))) // todo: verify version?
-        .catch((err) => {
+        .catch(err => {
           if (err.code !== 'ENOENT') throw err
           if (isLocked(ctx, target)) return Promise.resolve()
           return Promise.resolve()
@@ -78,7 +78,7 @@ module.exports = function install (ctx, pkg, modules, options) {
         .then(_ => symlinkToModules(fullname, name, modules, depth))
     })
     .then(_ => log('done'))
-    .catch((err) => {
+    .catch(err => {
       log('error', err)
       throw err
     })

lib/install/link_bins.js

@@ -23,7 +23,7 @@ module.exports = function linkBins (modules, target, fullname) {
 
   var bins = binify(pkg)
 
-  return Object.keys(bins).map((bin) => {
+  return Object.keys(bins).map(bin => {
     var actualBin = bins[bin]
 
     return Promise.resolve()

lib/install_multiple.js

@@ -20,7 +20,7 @@ function arrayify (pkgs) {
   if (typeof pkgs !== 'object') return [ pkgs ]
   if (Array.isArray(pkgs)) return pkgs
 
-  return Object.keys(pkgs).map((name) => {
+  return Object.keys(pkgs).map(name => {
     return '' + name + '@' + pkgs[name]
   })
 }