fsutil

Documentation

Index

• Constants
• func CopyFile(srcPath, dstPath string) error
• func Download(filepath string, url string) (err error)
• func ExtName(fpath string) string
• func IsDir(path string) bool
• func IsFile(path string) bool
• func MkDirs(perm os.FileMode, dirPaths ...string) error
• func MkSubDirs(perm os.FileMode, parentDir string, subDirs ...string) error
• func MustReadFile(filePath string) []byte
• func OpenFile(filepath string, flag int, perm os.FileMode) (*os.File, error)
• func RemoveDir(dir string) error
• func Workdir() string
• func WriteOSFile(f *os.File, data any) (n int, err error)

Constants

const (
	FsCWAFlags = os.O_CREATE | os.O_WRONLY | os.O_APPEND // create, append write-only
	FsCWTFlags = os.O_CREATE | os.O_WRONLY | os.O_TRUNC  // create, override write-only
	FsCWFlags  = os.O_CREATE | os.O_WRONLY               // create, write-only
	FsRFlags   = os.O_RDONLY                             // read-only
)

some commonly flag consts for open file

Functions

func CopyFile

func CopyFile(srcPath, dstPath string) error

CopyFile copy a file to another file path.

func Download

func Download(filepath string, url string) (err error)

Download downloads file from url and saves it to filepath

func ExtName

func ExtName(fpath string) string

ExtName is ...

func IsDir

func IsDir(path string) bool

IsDir reports whether the named directory exists.

func IsFile

func IsFile(path string) bool

IsFile reports whether the named file or directory exists.

func MkDirs

func MkDirs(perm os.FileMode, dirPaths ...string) error

MkDirs batch make multi dirs at once

func MkSubDirs

func MkSubDirs(perm os.FileMode, parentDir string, subDirs ...string) error

MkSubDirs batch make multi sub-dirs at once

func MustReadFile

func MustReadFile(filePath string) []byte

MustReadFile read file contents, will panic on error

func OpenFile

func OpenFile(filepath string, flag int, perm os.FileMode) (*os.File, error)

OpenFile like os.OpenFile, but will auto create dir.

func RemoveDir

func RemoveDir(dir string) error

RemoveDir is ...

func Workdir

func Workdir() string

Workdir get

func WriteOSFile

func WriteOSFile(f *os.File, data any) (n int, err error)

WriteOSFile write data to give os.File, then close file. data type allow: string, []byte, io.Reader