dfile

func AtomicSave ¶

func AtomicSave(dest string, src io.Reader, mode os.FileMode) error

AtomicSave saves src to the file making sure that the file saving is all-or-nothing.

func AtomicSaveBytes ¶

func AtomicSaveBytes(dest string, content []byte, mode os.FileMode) error

AtomicSaveBytes is AtomicSave(bytes.NewReader(content))

func AtomicSaveDirWith ¶

func AtomicSaveDirWith(dest string, mode os.FileMode, handler func(tempDir string) error) error

AtomicSaveDirWith atomically saves contents written to tempDir

func AtomicSaveFromFile ¶

func AtomicSaveFromFile(dest string, handler func(tempFileName string) error) error

AtomicSaveFromFile atomically saves the file written to tempFile to dest

func AtomicSaveString ¶

func AtomicSaveString(dest string, content string, mode os.FileMode) error

AtomicSaveString is AtomicSave(strings.NewReader(content))

func AtomicSaveWith ¶

func AtomicSaveWith(dest string, mode os.FileMode, handler func(dest io.Writer) error) error

AtomicSaveWith atomically saves content written to dest

func Exists ¶

func Exists(file string) (bool, error)

Exists returns whether the file exists

func RemoveIfExists ¶

func RemoveIfExists(filename string) error

RemoveIfExists removes the given file, reporting success if the file does not exist.

func SymlinkIfNot ¶

func SymlinkIfNot(oldname string, newname string) error

SymlinkIfNot creates a symlink at newname pointing to oldname.

It returns success if newname is already a symlink pointing to oldname, and error on any other kind of error.