Merge pull request #1 from chrislusf/master

update

1 files changed, 33 insertions, 0 deletions

diff --git a/weed/util/file_util.go b/weed/util/file_util.go
index 8ff2978ba..ff725830b 100644
--- a/weed/util/file_util.go
+++ b/weed/util/file_util.go
@@ -3,6 +3,7 @@ package util
 import (
 	"errors"
 	"os"
+	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
 )
@@ -30,3 +31,35 @@ func GetFileSize(file *os.File) (size int64, err error) {
 	}
 	return
 }
+
+func FileExists(filename string) bool {
+
+	_, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		return false
+	}
+	return true
+
+}
+
+func CheckFile(filename string) (exists, canRead, canWrite bool, modTime time.Time, fileSize int64) {
+	exists = true
+	fi, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		exists = false
+		return
+	}
+	if err != nil {
+		glog.Errorf("check %s: %v", filename, err)
+		return
+	}
+	if fi.Mode()&0400 != 0 {
+		canRead = true
+	}
+	if fi.Mode()&0200 != 0 {
+		canWrite = true
+	}
+	modTime = fi.ModTime()
+	fileSize = fi.Size()
+	return
+}