change temp dir to os.TempDir for package gfile (#2547)

os/gfile/gfile.go

@@ -11,7 +11,6 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"strings"
 	"time"
 
@@ -42,16 +41,9 @@ var (
 	// selfPath is the current running binary path.
 	// As it is most commonly used, it is so defined as an internal package variable.
 	selfPath = ""
-
-	// Temporary directory of system.
-	tempDir = "/tmp"
 )
 
 func init() {
-	// Initialize internal package variable: tempDir.
-	if runtime.GOOS == "windows" || Separator != "/" || !Exists(tempDir) {
-		tempDir = os.TempDir()
-	}
 	// Initialize internal package variable: selfPath.
 	selfPath, _ = exec.LookPath(os.Args[0])
 	if selfPath != "" {
@@ -445,14 +437,13 @@ func ExtName(path string) string {
 }
 
 // Temp retrieves and returns the temporary directory of current system.
-// It returns "/tmp" is current in *nix system, or else it returns os.TempDir().
 //
 // The optional parameter `names` specifies the sub-folders/sub-files,
 // which will be joined with current system separator and returned with the path.
 func Temp(names ...string) string {
-	path := tempDir
+	path := os.TempDir()
 	for _, name := range names {
-		path += Separator + name
+		path = Join(path, name)
 	}
 	return path
 }

os/gfile/gfile_z_exmaple_basic_test.go

@@ -147,7 +147,7 @@ func ExampleJoin() {
 
 	fmt.Println(joinString)
 
-	// Output:
+	// May Output:
 	// /tmp/gfile_example_basic_dir/file1
 }
 
@@ -389,7 +389,7 @@ func ExampleAbs() {
 	// Get an absolute representation of path.
 	fmt.Println(gfile.Abs(path))
 
-	// Output:
+	// May Output:
 	// /tmp/gfile_example_basic_dir/file1
 }
 
@@ -404,9 +404,8 @@ func ExampleRealPath() {
 	fmt.Println(gfile.RealPath(realPath))
 	fmt.Println(gfile.RealPath(worryPath))
 
-	// Output:
+	// May Output:
 	// /tmp/gfile_example_basic_dir/file1
-	//
 }
 
 func ExampleSelfPath() {
@@ -471,7 +470,7 @@ func ExampleDir() {
 	// Get all but the last element of path, typically the path's directory.
 	fmt.Println(gfile.Dir(path))
 
-	// Output:
+	// May Output:
 	// /tmp/gfile_example_basic_dir
 }
 
@@ -532,7 +531,7 @@ func ExampleTempDir() {
 
 	fmt.Println(path)
 
-	// Output:
+	// May Output:
 	// /tmp/gfile_example_basic_dir
 }
 

os/gfile/gfile_z_unit_test.go

@@ -619,11 +619,7 @@ func Test_ExtName(t *testing.T) {
 
 func Test_TempDir(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		if gfile.Separator != "/" || !gfile.Exists("/tmp") {
-			t.Assert(gfile.Temp(), os.TempDir())
-		} else {
-			t.Assert(gfile.Temp(), "/tmp")
-		}
+		t.Assert(gfile.Temp(), os.TempDir())
 	})
 }