From bdc0e90275827eb6314052e38799b2023a95ea3b Mon Sep 17 00:00:00 2001
From: lotusirous <5105237+lotusirous@users.noreply.github.com>
Date: Mon, 13 Dec 2021 18:12:15 +0900
Subject: [PATCH] Add ordered in printing

---
 main.go | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index 90d9bcc..08a4127 100644
--- a/main.go
+++ b/main.go
@@ -12,11 +12,13 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"sort"
 )
 
 // HashGroup composes the name to hash hash function
 type HashGroup map[string]hash.Hash
 
+// Values extracts the values from group hash.
 func (h HashGroup) Values() map[string]string {
 	out := make(map[string]string)
 	for name, v := range h {
@@ -119,8 +121,15 @@ func main() {
 			fmt.Fprintf(fd, "Cannot digest: %v", err)
 			os.Exit(1)
 		}
-		for name, v := range hashes {
-			fmt.Fprintf(fd, "%s: %s\n", name, v)
+		// sort by key since the go map is unordered
+		keys := make([]string, 0, len(hashes))
+		for k := range hashes {
+			keys = append(keys, k)
+		}
+		sort.Strings(keys)
+
+		for _, name := range keys {
+			fmt.Fprintf(fd, "%s: %s\n", name, hashes[name])
 		}
 	}