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package main
import (
"flag"
"fmt"
"github.com/blang/semver"
"github.com/rhysd/go-github-selfupdate/selfupdate"
"os"
)
const version = "1.2.3"
func selfUpdate(slug string) error {
selfupdate.EnableLog()
previous := semver.MustParse(version)
latest, err := selfupdate.UpdateSelf(previous, slug)
if err != nil {
return err
}
if previous.Equals(latest.Version) {
fmt.Println("Current binary is the latest version", version)
} else {
fmt.Println("Update successfully done to version", latest.Version)
fmt.Println("Release note:\n", latest.ReleaseNotes)
}
return nil
}
func usage() {
fmt.Fprintln(os.Stderr, "Usage: selfupdate-example [flags]\n")
flag.PrintDefaults()
}
func main() {
help := flag.Bool("help", false, "Show this help")
ver := flag.Bool("version", false, "Show version")
update := flag.Bool("selfupdate", false, "Try go-github-selfupdate via GitHub")
slug := flag.String("slug", "rhysd/go-github-selfupdate", "Repository of this command")
flag.Usage = usage
flag.Parse()
if *help {
usage()
os.Exit(0)
}
if *ver {
fmt.Println(version)
os.Exit(0)
}
if *update {
if err := selfUpdate(*slug); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
os.Exit(0)
}
usage()
}
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