refactor: remove workaround after the golang 1.7 release. (#1349)

* refactor: remove workaround after the golang 1.7 release.

* remove unused import.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* refactor: Add remove function.

* refactor: rename

* refactor: update build flag

models/admin.go

@@ -6,16 +6,13 @@ package models
 
 import (
 	"fmt"
-	"os"
-	"os/exec"
-	"strings"
 	"time"
 
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+
 	"github.com/Unknwon/com"
 	"github.com/go-xorm/xorm"
-
-	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/setting"
 )
 
 //NoticeType describes the notice type
@@ -79,19 +76,7 @@ func RemoveAllWithNotice(title, path string) {
 }
 
 func removeAllWithNotice(e Engine, title, path string) {
-	var err error
-	// workaround for Go not being able to remove read-only files/folders: https://github.com/golang/go/issues/9606
-	// this bug should be fixed on Go 1.7, so the workaround should be removed when Gogs don't support Go 1.6 anymore:
-	// https://github.com/golang/go/commit/2ffb3e5d905b5622204d199128dec06cefd57790
-	if setting.IsWindows {
-		// converting "/" to "\" in path on Windows
-		path = strings.Replace(path, "/", "\\", -1)
-		err = exec.Command("cmd", "/C", "rmdir", "/S", "/Q", path).Run()
-	} else {
-		err = os.RemoveAll(path)
-	}
-
-	if err != nil {
+	if err := util.RemoveAll(path); err != nil {
 		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
 		log.Warn(desc)
 		if err = createNotice(e, NoticeRepository, desc); err != nil {

modules/util/remove.go

@@ -0,0 +1,14 @@
+// +build !windows,!go1.7 go1.7
+
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package util
+
+import "os"
+
+// RemoveAll files from Go version 1.7 onward
+func RemoveAll(path string) error {
+	return os.RemoveAll(path)
+}

modules/util/remove_windows.go

@@ -0,0 +1,16 @@
+// +build windows,!go1.7
+
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package util
+
+// RemoveAll files from path on windows
+// workaround for Go not being able to remove read-only files/folders: https://github.com/golang/go/issues/9606
+// this bug should be fixed on Go 1.7, so the workaround should be removed when Gitea don't support Go 1.6 anymore:
+// https://github.com/golang/go/commit/2ffb3e5d905b5622204d199128dec06cefd57790
+func RemoveAll(path string) error {
+	path = strings.Replace(path, "/", "\\", -1)
+	return exec.Command("cmd", "/C", "rmdir", "/S", "/Q", path).Run()
+}