Add `go fmt` to check format of code

app/resource.go

@@ -12,11 +12,11 @@ import (
 	"compress/gzip"
 	"fmt"
 	"io"
-	"strings"
-	"os"
-	"time"
 	"io/ioutil"
+	"os"
 	"path/filepath"
+	"strings"
+	"time"
 )
 
 func bindataRead(data []byte, name string) ([]byte, error) {
@@ -149,7 +149,7 @@ func Asset(name string) ([]byte, error) {
 // It simplifies safe initialization of global variables.
 func MustAsset(name string) []byte {
 	a, err := Asset(name)
-	if (err != nil) {
+	if err != nil {
 		panic("asset: Asset(" + name + "): " + err.Error())
 	}
 
@@ -226,14 +226,12 @@ type bintree struct {
 	Func     func() (*asset, error)
 	Children map[string]*bintree
 }
+
 var _bintree = &bintree{nil, map[string]*bintree{
 	"bindata": &bintree{nil, map[string]*bintree{
-		"gotty.js": &bintree{bindataGottyJs, map[string]*bintree{
-		}},
-		"hterm.js": &bintree{bindataHtermJs, map[string]*bintree{
-		}},
-		"index.html": &bintree{bindataIndexHtml, map[string]*bintree{
-		}},
+		"gotty.js":   &bintree{bindataGottyJs, map[string]*bintree{}},
+		"hterm.js":   &bintree{bindataHtermJs, map[string]*bintree{}},
+		"index.html": &bintree{bindataIndexHtml, map[string]*bintree{}},
 	}},
 }}
 
@@ -283,4 +281,3 @@ func _filePath(dir, name string) string {
 	cannonicalName := strings.Replace(name, "\\", "/", -1)
 	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
 }
-

wercker.yml

@@ -8,6 +8,10 @@ build:
         code: |
           go get github.com/tools/godep
           godep restore
+    - script:
+        name: check format
+        code: |
+          if [ `go fmt ./... | wc -l` -gt 0 ]; then echo "go fmt error"; exit 1; fi
     - tcnksm/gox:
         os: "darwin linux"
         arch: "amd64"