subprocess

Documentation

Overview

Package subprocess provides functionality to execute system commands.

Index

• func Exists(pid int) (bool, error)
• type SystemExecutor
  • func (SystemExecutor) Execute(ctx context.Context, cmd *command.Command) (string, string, error)
  • func (SystemExecutor) ExecuteInBackground(ctx context.Context, cmd *command.Command, oe outerr.OutErr, ...) error
  • func (SystemExecutor) ExecuteWithOutErr(ctx context.Context, cmd *command.Command, oe outerr.OutErr) error

Functions

func Exists

func Exists(pid int) (bool, error)

Exists returns true if a pid is assigned to a process that is actively running. Based on comment from: https://github.com/golang/go/issues/34396

Types

type SystemExecutor

type SystemExecutor struct{}

SystemExecutor uses the native os/exec package to execute subprocesses.

func (SystemExecutor) Execute

func (SystemExecutor) Execute(ctx context.Context, cmd *command.Command) (string, string, error)

Execute runs the given command and returns stdout and stderr. Returns *exec.ExitError if the command ran with a non-zero exit code.

func (SystemExecutor) ExecuteInBackground

func (SystemExecutor) ExecuteInBackground(ctx context.Context, cmd *command.Command, oe outerr.OutErr, ch chan *command.Result) error

ExecuteInBackground executes the command in the background. Command result is written to the passed channel.

func (SystemExecutor) ExecuteWithOutErr

func (SystemExecutor) ExecuteWithOutErr(ctx context.Context, cmd *command.Command, oe outerr.OutErr) error

ExecuteWithOutErr runs the given command and returns stdout and stderr in an OutErr object. Returns *exec.ExitError if the command ran with a non-zero exit code.