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disk_data_folder.go
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/
disk_data_folder.go
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package fsutil
import (
"io"
"os"
"path/filepath"
)
type DiskDataFolder struct {
Path string
}
func NewDiskDataFolder(folderPath string) (*DiskDataFolder, error) {
err := os.MkdirAll(folderPath, os.ModePerm)
if err != nil {
return nil, err
}
return &DiskDataFolder{folderPath}, nil
}
func ExistingDiskDataFolder(folderPath string) (*DiskDataFolder, error) {
return &DiskDataFolder{folderPath}, nil
}
func (folder *DiskDataFolder) OpenReadonlyFile(filename string) (io.ReadCloser, error) {
filePath := filepath.Join(folder.Path, filename)
file, err := os.Open(filePath)
if err != nil && os.IsNotExist(err) {
return file, NewNoSuchFileError(filename)
}
return file, err
}
func (folder *DiskDataFolder) OpenWriteOnlyFile(filename string) (io.WriteCloser, error) {
filePath := filepath.Join(folder.Path, filename)
return os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
}
func (folder *DiskDataFolder) CleanFolder() error {
cleaner := FileSystemCleaner{}
files, err := cleaner.GetFiles(folder.Path)
if err != nil {
return err
}
for _, file := range files {
cleaner.Remove(filepath.Join(folder.Path, file))
}
return nil
}
func (folder *DiskDataFolder) FileExists(filename string) bool {
filePath := filepath.Join(folder.Path, filename)
_, err := os.Stat(filePath)
return !os.IsNotExist(err)
}
func (folder *DiskDataFolder) CreateFile(filename string) error {
filePath := filepath.Join(folder.Path, filename)
_, err := os.Create(filePath)
return err
}
func (folder *DiskDataFolder) DeleteFile(filename string) error {
filePath := filepath.Join(folder.Path, filename)
return os.Remove(filePath)
}
func (folder *DiskDataFolder) RenameFile(oldFileName string, newFileName string) error {
oldPath := filepath.Join(folder.Path, oldFileName)
newPath := filepath.Join(folder.Path, newFileName)
return os.Rename(oldPath, newPath)
}