upgrade

Documentation

Overview

Package upgrade performs automatic upgrade of the running binary.

Index

• Variables
• func UpgradeTo(build Build) error
• type Build
  • func Newest(binary string, url string) (Build, error)

Variables

var ErrHashMismatch = errors.New("hash mismatch")

The binary's SHA1 hash was incorrect after downloading.

Functions

func UpgradeTo

func UpgradeTo(build Build) error

UpgradeTo upgrades the currently exeuting binary to the specified Build and returns an error or nil. The file is downloaded to <destination>.part and atomically renamed to the destination after the hash check. The destination is taken as the path of the currently executing binary, while following any symbolic links to it's destination.

Types

type Build

type Build struct {
	URL        string
	Hash       string
	BuildStamp int
	Version    string
}

Build is a versioned build of a binary.

func Newest

func Newest(binary string, url string) (Build, error)

Newest checks for the newest build available for a given binary at a given base URL and returns a Build or an error.