package main

import (
  log "github.com/sirupsen/logrus"
  "github.com/steiler/acls"
)

func main() {
    // Define the path to the file for which you want to get ACLs.
    filePath := "/tmp/foo"

    // init the ACL struct
    a := &acls.ACL{}
    // load (access) ACL entries from a given path object
    err := a.Load(filePath, acls.PosixACLAccess)
    if err != nil {
        log.Fatal(err)
    }
    // add a new entry referencing a group with GID 5558 granting permission rwx (7)
    err = a.AddEntry(acls.NewEntry(acls.TAG_ACL_GROUP, 5558, 7))
    if err != nil {
        log.Fatal(err)
    }
    // print a visual representation of the ACL
    fmt.Println(a.String())

    // Apply the ACL as an access ACL to the given filesystem path object.
    err = a.Apply(filePath, acls.PosixACLAccess)
    if err != nil {
        log.Fatal(err)
    }
}