Parse an apk with Go

main.go

package main

import (
	"fmt"
	"os"

	apkrepo "gitlab.alpinelinux.org/alpine/go/repository"
)

func main() {
	if len(os.Args) != 2 {
		fmt.Println("Usage: go run main.go <path_to_apk>")
		os.Exit(1)
	}

	f, err := os.Open(os.Args[1])
	if err != nil {
		panic(err)
	}
	defer f.Close()

	apk, err := apkrepo.ParsePackage(f)
	if err != nil {
		panic(err)
	}

	fmt.Printf("Name:     %s\n", apk.Name)
	fmt.Printf("Version:  %s\n", apk.Version)
	fmt.Printf("Arch:     %s\n", apk.Arch)
	fmt.Printf("Desc:     %s\n", apk.Description)
	fmt.Printf("Checksum: %s\n", apk.ChecksumString())
}