util

func CopyFile ¶

func CopyFile(src, dst string) (int64, error)

func Download ¶

func Download(url string) (resp *http.Response, err error)

Request a given URL and return an io.Reader

func FolderExists ¶

func FolderExists(path *string) (bool, error)

func GetFileSize ¶

func GetFileSize(path string) (int64, error)

func Go ¶

func Go(f func() error) chan error

Go is a basic promise implementation: it wraps calls a function in a goroutine, and returns a channel which will later return the function's return value.

func IsURL ¶

func IsURL(str string) bool

func ParseKeyValueOpt ¶

func ParseKeyValueOpt(opt string) (string, string, error)

func ReadSymlinkedDirectory ¶

func ReadSymlinkedDirectory(path string) (string, error)

ReadSymlinkedDirectory returns the target directory of a symlink. The target of the symbolic link may not be a file.

func SecureCompare ¶

func SecureCompare(x string, y string) bool

SecureCompare performs a constant time compare of two strings to limit timing attacks.

func SelfPath ¶

func SelfPath() string

Figure out the absolute path of our own binary (if it's still around).

func TimeToMicroseconds ¶

func TimeToMicroseconds(t time.Time) int64

func TreeSize ¶

func TreeSize(dir string) (size int64, err error)

TreeSize walks a directory tree and returns its total size in bytes.

func Trunc ¶

func Trunc(s string, maxlen int) string

func ValidateContextDirectory ¶

func ValidateContextDirectory(srcPath string) error

ValidateContextDirectory checks if all the contents of the directory can be read and returns an error if some files can't be read symlinks which point to non-existing files don't trigger an error