entity: unique function to generate IDs

1 files changed, 3 insertions, 9 deletions

diff --git a/identity/version.go b/identity/version.go
index ae2474bf..ce5cc7d6 100644
--- a/identity/version.go
+++ b/identity/version.go
@@ -2,7 +2,6 @@ package identity
 
 import (
 	"crypto/rand"
-	"crypto/sha256"
 	"encoding/json"
 	"fmt"
 	"strings"
@@ -106,16 +105,11 @@ func (v *version) Id() entity.Id {
 		if err != nil {
 			panic(err)
 		}
-		v.id = deriveId(data)
+		v.id = entity.DeriveId(data)
 	}
 	return v.id
 }
 
-func deriveId(data []byte) entity.Id {
-	sum := sha256.Sum256(data)
-	return entity.Id(fmt.Sprintf("%x", sum))
-}
-
 // Make a deep copy
 func (v *version) Clone() *version {
 	// copy direct fields
@@ -172,7 +166,7 @@ func (v *version) UnmarshalJSON(data []byte) error {
 		return entity.NewErrNewFormatVersion(aux.FormatVersion)
 	}
 
-	v.id = deriveId(data)
+	v.id = entity.DeriveId(data)
 	v.times = aux.Times
 	v.unixTime = aux.UnixTime
 	v.name = aux.Name
@@ -256,7 +250,7 @@ func (v *version) Write(repo repository.Repo) (repository.Hash, error) {
 	}
 
 	// make sure we set the Id when writing in the repo
-	v.id = deriveId(data)
+	v.id = entity.DeriveId(data)
 
 	return hash, nil
 }