flagutil

Documentation

Overview

Package flagutil is a collection of helper functions for Kythe binaries using the flag package.

Index

• func SimpleUsage(description string, args ...string) func()
• func UsageError(msg string)
• func UsageErrorf(str string, vals ...interface{})

Functions

func SimpleUsage

func SimpleUsage(description string, args ...string) func()

SimpleUsage returns a basic flag.Usage function that prints the given description and list of arguments in the following format:

Usage: binary <arg0> <arg1> ... <argN>
<description>

<build.VersionLine()>

Flags:
<flag.PrintDefaults()>

func UsageError

func UsageError(msg string)

UsageError prints msg to stderr, calls flag.Usage, and exits the program unsuccessfully.

func UsageErrorf

func UsageErrorf(str string, vals ...interface{})

UsageErrorf prints str formatted with the given vals to stderr, calls flag.Usage, and exits the program unsuccessfully.