utils

Documentation

Index

• Variables
• func CopyDetachable(dst io.Writer, src io.Reader, keys []byte) (written int64, err error)
• func ExecCmd(name string, args ...string) (string, error)
• func ExecCmdWithStdStreams(stdin io.Reader, stdout, stderr io.Writer, env []string, name string, ...) error
• func RemoveScientificNotationFromFloat(x float64) (float64, error)
• func RunUnderSystemdScope(pid int, slice string, unitName string) error
• func Tar(source string) (io.ReadCloser, error)
• func TarToFilesystem(source string, tarball *os.File) error
• func UntarToFileSystem(dest string, tarball *os.File, options *archive.TarOptions) error

Variables

var ErrDetach = errors.New("detached from container")

ErrDetach is an error indicating that the user manually detached from the container.

Functions

func CopyDetachable

func CopyDetachable(dst io.Writer, src io.Reader, keys []byte) (written int64, err error)

CopyDetachable is similar to io.Copy but support a detach key sequence to break out.

func ExecCmd

func ExecCmd(name string, args ...string) (string, error)

ExecCmd executes a command with args and returns its output as a string along with an error, if any

func ExecCmdWithStdStreams

func ExecCmdWithStdStreams(stdin io.Reader, stdout, stderr io.Writer, env []string, name string, args ...string) error

ExecCmdWithStdStreams execute a command with the specified standard streams.

func RemoveScientificNotationFromFloat

func RemoveScientificNotationFromFloat(x float64) (float64, error)

RemoveScientificNotationFromFloat returns a float without any scientific notation if the number has any. golang does not handle conversion of float64s that have scientific notation in them and otherwise stinks. please replace this if you have a better implementation.

func RunUnderSystemdScope

func RunUnderSystemdScope(pid int, slice string, unitName string) error

RunUnderSystemdScope adds the specified pid to a systemd scope

func Tar

func Tar(source string) (io.ReadCloser, error)

Tar creates a tarball from source and returns a readcloser of it

func TarToFilesystem

func TarToFilesystem(source string, tarball *os.File) error

TarToFilesystem creates a tarball from source and writes to an os.file provided

func UntarToFileSystem

func UntarToFileSystem(dest string, tarball *os.File, options *archive.TarOptions) error

UntarToFileSystem untars an os.file of a tarball to a destination in the filesystem