utils

Documentation

Index

• func ExecCmd(name string, args ...string) (string, error)
• func ExecCmdWithStdStreams(stdin io.Reader, stdout, stderr io.Writer, env []string, name string, ...) error
• func GetRandomPort() (int, error)
• func GuardedRemoveAll(path string) error
• func ProgressBar(prefix string, size int64, onComplete string) (*mpb.Progress, *mpb.Bar)
• func RemoveFilesExcept(path string, excludeFile string) error
• func Tar(source string) (io.ReadCloser, error)
• func TarToFilesystem(source string, tarball *os.File) error
• func TarWithChroot(source string) (io.ReadCloser, error)

Functions

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 GetRandomPort

func GetRandomPort() (int, error)

Find a random, open port on the host.

func GuardedRemoveAll

func GuardedRemoveAll(path string) error

GuardedRemoveAll functions much like os.RemoveAll but will not delete certain catastrophic paths.

func ProgressBar

func ProgressBar(prefix string, size int64, onComplete string) (*mpb.Progress, *mpb.Bar)

func RemoveFilesExcept

func RemoveFilesExcept(path string, excludeFile string) error

RemoveFilesExcept removes all files in a directory except for the one specified by excludeFile and will not delete certain catastrophic paths.

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 TarWithChroot

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

TarWithChroot creates a tarball from source and returns a readcloser of it while chrooted to the source.