PackageManager/Client/Package/InstallPackage.go

package Package

import (
	"errors"
	"fmt"
	"os"

	"PackageManager/Archive"
)

func InstallPackage(pkgs []string) error {
	var (
		pkg string
		e   error
	)

	for _, pkg = range pkgs {
		_, e = os.Stat(pkg)
		if os.IsNotExist(e) {
			return errors.New(fmt.Sprintf("Invalid package %s", pkg))
		}
	}

	for _, pkg = range pkgs {
		e = Archive.UntarGzip(pkg, "/")
	}

	return nil
}