os

Documentation

Overview

Package os provides a platform-independent interface to operating system functionality.

Index

• func Copy(dst, src string) error
• func CopyDir(dst, src string, mode os.FileMode) error
• func CopyFile(dst, src string, mode os.FileMode) error
• func GetenvOr(key, val string) string
• func NewCopyError(src, dst, msg string, err error) error
• type CopyError
  • func (e *CopyError) Error() string
  • func (e *CopyError) Unwrap() error

Functions

func Copy

func Copy(dst, src string) error

Copy copies src content into dst. If dst doesn't exists, it will be created. src mode will override dst mode. Only file-file or directory-directory operations should be performed.

func CopyDir

func CopyDir(dst, src string, mode os.FileMode) error

CopyDir copies src content recursively into dst, if dst doesn't exists it will be created. mode will be the new dst mode, its content will preserve the origin mode.

func CopyFile

func CopyFile(dst, src string, mode os.FileMode) error

CopyFile copies src content into dst, if dst exists it will be truncated. mode will be the new dst mode.

func GetenvOr

func GetenvOr(key, val string) string

GetenvOr retrieves the value of the environment variable named by the key. If the variable is empty or absent, val will be used as the return value.

func NewCopyError

func NewCopyError(src, dst, msg string, err error) error

NewCopyError creates a CopyError.

Types

type CopyError

type CopyError struct {
	Src, Dst string
	Reason   string
	Err      error
}

CopyError records an error during a copy operation. If Err is nil, it means the error doesn't wrap any error from another package.

func (*CopyError) Error

func (e *CopyError) Error() string

Error implements the error interface.

func (*CopyError) Unwrap

func (e *CopyError) Unwrap() error

Unwrap allows to use functions from errors package over CopyError.