exechelper

Documentation

Overview

Package exechelper streamlines the running of external commands while both capturing and logging their output.

It builds on os/exec, expecting an instance of Cmd to manipulate.

Index

• func Run(cmd *exec.Cmd, logger log.FieldLogger, outputLogger OutputLogger) ([]byte, []byte, error)
• func RunWithEnv(cmd *exec.Cmd, logger log.FieldLogger, outputLogger OutputLogger) ([]byte, []byte, error)
• type OutputLogger

Functions

func Run

func Run(cmd *exec.Cmd, logger log.FieldLogger, outputLogger OutputLogger) ([]byte, []byte, error)

Run invokes cmd.Run, both logging and returning STDOUT and STDERR, optionally transforming the output first.

func RunWithEnv

func RunWithEnv(cmd *exec.Cmd, logger log.FieldLogger, outputLogger OutputLogger) ([]byte, []byte, error)

RunWithEnv applies environment variables in the command arguments list and then invokes cmd.Run, both logging and returning STDOUT and STDERR, optionally transforming the output first.

Types

type OutputLogger

type OutputLogger func(line string, logger log.FieldLogger)

OutputLogger allows custom logging of the run command output.