Fix indentation and add .eslint rules

closes #555

.eslintrc

@@ -11,3 +11,4 @@ rules:
   yoda: 0
   arrow-parens: [2, "as-needed"]
   arrow-spacing: 2
+  dot-location: [2, "property"]

lib/application.js

@@ -92,9 +92,7 @@ module.exports = class Application extends Emitter {
   use(fn) {
     debug('use %s', fn._name || fn.name || '-');
     if (typeof fn !== 'function') throw new TypeError('middleware must be a function!');
-    if (isGeneratorFunction(fn)) {
+    if (isGeneratorFunction(fn)) throw new TypeError('Support for generators has been removed. Use Promises or wrap your generator with co.wrap');
-      throw new TypeError('Support for generators has been removed. Use Promises or wrap your generator with co.wrap');
-    }
     this.middleware.push(fn);
     return this;
   }

lib/request.js

@@ -81,9 +81,7 @@ module.exports = {
 
   get href() {
     // support: `GET http://example.com/foo`
-    if (/^https?:\/\//i.test(this.originalUrl)) {
+    if (/^https?:\/\//i.test(this.originalUrl)) return this.originalUrl;
-      return this.originalUrl;
-    }
     return this.origin + this.originalUrl;
   },
 
@@ -400,12 +398,13 @@ module.exports = {
   /**
    * Return subdomains as an array.
    *
-   * Subdomains are the dot-separated parts of the host before the main domain of
+   * Subdomains are the dot-separated parts of the host before the main domain
-   * the app. By default, the domain of the app is assumed to be the last two
+   * of the app. By default, the domain of the app is assumed to be the last two
    * parts of the host. This can be changed by setting `app.subdomainOffset`.
    *
    * For example, if the domain is "tobi.ferrets.example.com":
-   * If `app.subdomainOffset` is not set, this.subdomains is `["ferrets", "tobi"]`.
+   * If `app.subdomainOffset` is not set, this.subdomains is
+   * `["ferrets", "tobi"]`.
    * If `app.subdomainOffset` is 3, this.subdomains is `["tobi"]`.
    *
    * @return {Array}

lib/response.js

@@ -446,9 +446,11 @@ module.exports = {
    *
    * Examples:
    *
+   * ```
    * this.append('Link', ['<http://localhost/>', '<http://localhost:3000/>']);
    * this.append('Set-Cookie', 'foo=bar; Path=/; HttpOnly');
    * this.append('Warning', '199 Miscellaneous warning');
+   * ```
    *
    * @param {String} field
    * @param {String|Array} val

test/application/respond.js

@@ -590,7 +590,8 @@ describe('app.respond', function(){
         });
     });
 
-    it('should keep content-length if overwritten with the same stream', function(done){
+    it('should keep content-length if overwritten with the same stream',
+      done => {
         const app = new Koa();
 
         app.use(function(ctx){

test/context/cookies.js

@@ -21,8 +21,7 @@ describe('ctx.cookies.set()', function(){
       .end(function(err, res){
         if (err) return done(err);
 
-      res.headers['set-cookie'].some(cookie => /^name=/.test(cookie))
+        res.headers['set-cookie'].some(cookie => /^name=/.test(cookie)).should.be.ok;
-      .should.be.ok;
 
         done();
       });

test/response/last-modified.js

@@ -23,8 +23,7 @@ describe('res.lastModified', function(){
     const res = response();
     const date = new Date();
     res.lastModified = date;
-    (res.lastModified.getTime() / 1000)
+    (res.lastModified.getTime() / 1000).should.equal(Math.floor(date.getTime() / 1000));
-    .should.equal(Math.floor(date.getTime() / 1000));
   });
 
   describe('when lastModified not set', function(){

test/response/status.js

@@ -85,7 +85,7 @@ describe('res.status=', function(){
         });
     });
 
-    it('should strip content releated header fields after status set', function(done){
+    it('should strip content releated header fields after status set', done => {
       const app = new Koa();
 
       app.use(function(ctx){