158 lines
3.2 KiB
Go
158 lines
3.2 KiB
Go
// Copyright (c) 2014-2015, b3log.org
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package util
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/b3log/wide/log"
|
|
)
|
|
|
|
// Logger.
|
|
var fileLogger = log.NewLogger(os.Stdout)
|
|
|
|
type myfile struct{}
|
|
|
|
// File utilities.
|
|
var File = myfile{}
|
|
|
|
// GetFileSize get the length in bytes of file of the specified path.
|
|
func (*myfile) GetFileSize(path string) int64 {
|
|
fi, err := os.Stat(path)
|
|
if nil != err {
|
|
return -1
|
|
}
|
|
|
|
return fi.Size()
|
|
}
|
|
|
|
// IsExist determines whether the file spcified by the given path is exists.
|
|
func (*myfile) IsExist(path string) bool {
|
|
_, err := os.Stat(path)
|
|
|
|
return err == nil || os.IsExist(err)
|
|
}
|
|
|
|
// IsBinary determines whether the specified content is a binary file content.
|
|
func (*myfile) IsBinary(content string) bool {
|
|
for _, b := range content {
|
|
if 0 == b {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// IsImg determines whether the specified extension is a image.
|
|
func (*myfile) IsImg(extension string) bool {
|
|
ext := strings.ToLower(extension)
|
|
|
|
switch ext {
|
|
case ".jpg", ".jpeg", ".bmp", ".gif", ".png", ".svg", ".ico":
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// IsDir determines whether the specified path is a directory.
|
|
func (*myfile) IsDir(path string) bool {
|
|
fio, err := os.Lstat(path)
|
|
if nil != err {
|
|
fileLogger.Warnf("Determines whether [%s] is a directory failed: [%v]", path, err)
|
|
|
|
return false
|
|
}
|
|
|
|
return fio.IsDir()
|
|
}
|
|
|
|
// CopyFile copies the source file to the dest file.
|
|
func (*myfile) CopyFile(source string, dest string) (err error) {
|
|
sourcefile, err := os.Open(source)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer sourcefile.Close()
|
|
|
|
destfile, err := os.Create(dest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer destfile.Close()
|
|
|
|
_, err = io.Copy(destfile, sourcefile)
|
|
if err == nil {
|
|
sourceinfo, err := os.Stat(source)
|
|
if err != nil {
|
|
err = os.Chmod(dest, sourceinfo.Mode())
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// CopyDir copies the source directory to the dest directory.
|
|
func (*myfile) CopyDir(source string, dest string) (err error) {
|
|
sourceinfo, err := os.Stat(source)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// create dest dir
|
|
err = os.MkdirAll(dest, sourceinfo.Mode())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
directory, err := os.Open(source)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer directory.Close()
|
|
|
|
objects, err := directory.Readdir(-1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, obj := range objects {
|
|
srcFilePath := filepath.Join(source, obj.Name())
|
|
destFilePath := filepath.Join(dest, obj.Name())
|
|
|
|
if obj.IsDir() {
|
|
// create sub-directories - recursively
|
|
err = File.CopyDir(srcFilePath, destFilePath)
|
|
if err != nil {
|
|
fileLogger.Error(err)
|
|
}
|
|
} else {
|
|
err = File.CopyFile(srcFilePath, destFilePath)
|
|
if err != nil {
|
|
fileLogger.Error(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|