util

func Ar ¶

func Ar(a ...string) []string

func AssertFileExist ¶

func AssertFileExist(t *testing.T, file string)

func AssertStringSlicesEqual ¶

func AssertStringSlicesEqual(t *testing.T, input string, expected []string, actual []string)

func AssertStringsEqual ¶

func AssertStringsEqual(t *testing.T, input string, expected string, actual string)

func Check ¶

func Check(err error, format string, a ...interface{})

func CompressSlash ¶

func CompressSlash(file string) string

func Debugf ¶

func Debugf(format string, a ...interface{})

func DebugfForce ¶

func DebugfForce(format string, a ...interface{})

func Dump ¶

func Dump(prefix string, obj interface{})

func Encode ¶

func Encode(args []string) string

Encode a string array into a single command string.

func Exit ¶

func Exit(success bool)

Exit should be used within RunAndExit to cleanly finishes the process.

func ExitFailure ¶

func ExitFailure()

ExitFailure should be used within RunAndExit to cleanly finishes the process with a failure code.

func ExitSuccess ¶

func ExitSuccess()

ExitSuccess should be used within RunAndExit to cleanly finishes the process with a success code.

func Fatalf ¶

func Fatalf(format string, a ...interface{})

func FilenameSafe ¶

func FilenameSafe(s string) string

func FindZenlogBin ¶

func FindZenlogBin() string

FindZenlogBin returns the fullpath of the zenlog executable.

func FindZenlogBinDir ¶

func FindZenlogBinDir() string

FindZenlogBinDir returns the fullpath of the directory where the zenlog executable is.

func Fingerprint ¶

func Fingerprint() string

Create a random string.

func GetInjectedNow ¶

func GetInjectedNow(clock utils.Clock) time.Time

GetInjectedNow returns an injected time if _ZENLOG_TIME_INJECTION_FILE is set, or otherwise just returns a passed Clock.

func GetIntEnv ¶

func GetIntEnv(name string, def int) int

GetIntEnv extracts an integer from an environmental variable.

func GetSubcommand ¶

func GetSubcommand() (command string, args []string)

GetSubcommand extracts a zenlog subcommand name from os.Args.

func MustExec ¶

func MustExec(args []string)

MustExec is a must-version of syscall.Exec.

func MustMarshal ¶

func MustMarshal(v interface{}) string

MustMarshal is a must version of json.Marshal.

func MustUnmarshal ¶

func MustUnmarshal(data string, v interface{})

MustUnmarshal is a must version of json.Unmarshal.

func NumLines ¶

func NumLines(data []byte) int

Return number of LFs in bytes.

func PropagateTerminalSize ¶

func PropagateTerminalSize(from *os.File, to *os.File) error

func ReadFromFile ¶

func ReadFromFile(filename string, predicate func(vals []string) bool, timeout time.Duration) ([]string, error)

ReadFromFile read encoded args from a file. The predicate callback can be used to tell whether a received set of args is what's expected or not.

func RunAndExit ¶

func RunAndExit(f func() int)

RunAndExit executes a given function. Within the function, util.Exit* functions can be used to finish the process cleanly.

func Say ¶

func Say(format string, a ...interface{})

func SetOutputIsRaw ¶

func SetOutputIsRaw(raw bool)

SetOutputIsRaw sets whether stdout is in raw mode or not.

func SlicesEqual ¶

func SlicesEqual(a []string, b []string) bool

func StartEmergencyShell ¶

func StartEmergencyShell()

StartEmergencyShell exec's /bin/sh.

func TryDecodeBytes ¶

func TryDecodeBytes(s []byte) (success bool, prefix []byte, args []string)

TryDecodeBytes extracts a command string from a given string, and return the prefix part (i.e. the part followed by the command string) and the split up command arguments.

func TryUnmarshal ¶

func TryUnmarshal(data string, v interface{}) bool

TryUnmarshal is a json.Unmarshal wrapper that returns whether succeeded or not.

func Tty ¶

func Tty() string

func Ttyname ¶

func Ttyname(fd uintptr) string

func Warn ¶

func Warn(err error, format string, a ...interface{}) bool

func WriteToFile ¶

func WriteToFile(filename string, args []string) error

WriteToFile writes encoded args to a file.

func ZenlogBinCtime ¶

func ZenlogBinCtime() time.Time

ZenlogBinCtime returns the ctime of the zenlog executable.