selfupdate: Build self-updating Go programs

NOTE: Original work at github.com/inconshreveable/go-update, modified for the needs within MinIO project

Package update provides functionality to implement secure, self-updating Go programs (or other single-file targets) A program can update itself by replacing its executable file with a new version.

It provides the flexibility to implement different updating user experiences like auto-updating, or manual user-initiated updates. It also boasts advanced features like binary patching and code signing verification.

Example of updating from a URL:

import (
    "fmt"
    "net/http"

    "github.com/minio/selfupdate"
)

func doUpdate(url string) error {
    resp, err := http.Get(url)
    if err != nil {
        return err
    }
    defer resp.Body.Close()
    err = selfupdate.Apply(resp.Body, selfupdate.Options{})
    if err != nil {
        // error handling
    }
    return err
}

Features

Cross platform support (Windows too!)
Binary patch application
Checksum verification
Code signing verification
Support for updating arbitrary files

License

This SDK is distributed under the Apache License, Version 2.0, see LICENSE for more information. Original work was also distributed under the same license.