go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/projects/blogctl/pkg/engine/etag.go (about) 1 /* 2 3 Copyright (c) 2023 - Present. Will Charczuk. All rights reserved. 4 Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository. 5 6 */ 7 8 package engine 9 10 import ( 11 "crypto/md5" 12 "encoding/hex" 13 ) 14 15 // ETag creates an etag for a given blob. 16 func ETag(contents []byte) (string, error) { 17 hash := md5.New() 18 _, err := hash.Write(contents) 19 if err != nil { 20 return "", err 21 } 22 return hex.EncodeToString(hash.Sum(nil)), nil 23 }