github.com/juju/juju@v0.0.0-20240430160146-1752b71fcf00/core/resources/serialization.go (about)

     1  // Copyright 2016 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package resources
     5  
     6  import (
     7  	"github.com/juju/charm/v12/resource"
     8  	"github.com/juju/errors"
     9  )
    10  
    11  // DeserializeFingerprint converts the serialized fingerprint back into
    12  // a Fingerprint. "zero" values are treated appropriately.
    13  func DeserializeFingerprint(fpSum []byte) (resource.Fingerprint, error) {
    14  	var fp resource.Fingerprint
    15  	if len(fpSum) != 0 {
    16  		var err error
    17  		fp, err = resource.NewFingerprint(fpSum)
    18  		if err != nil {
    19  			return fp, errors.Trace(err)
    20  		}
    21  	}
    22  	return fp, nil
    23  }