modernize Go sorting a bitHEADmaster

1 files changed, 3 insertions, 13 deletions

diff --git a/bin-src/pem-diff.go b/bin-src/pem-diff.go
index f4bacee..b1c1ac7 100644
--- a/bin-src/pem-diff.go
+++ b/bin-src/pem-diff.go
@@ -7,9 +7,10 @@ import (
 	"encoding/pem"
 	"fmt"
 	"io"
+	"maps"
 	"net/url"
 	"os"
-	"sort"
+	"slices"
 	"strings"
 
 	"git.lukeshu.com/dashboard/bin-src/util"
@@ -102,17 +103,6 @@ func readCrtSh(filename string, hosts []string) (map[string]Cert, error) {
 	return ret, nil
 }
 
-func keys(m map[string]Cert) []string {
-	ret := make([]string, len(m))
-	i := 0
-	for k := range m {
-		ret[i] = k
-		i++
-	}
-	sort.Strings(ret)
-	return ret
-}
-
 func main() {
 	if len(os.Args) != 3 {
 		_, _ = fmt.Fprintf(os.Stderr, "Usage: %s TLS-file crt.sh-file\n", os.Args[0])
@@ -129,7 +119,7 @@ func mainWithError(filenameTLS string, filenameCrtSh string) error {
 	if err != nil {
 		return fmt.Errorf("could load TLS file: %w", err)
 	}
-	hostsTLS := keys(certsTLS)
+	hostsTLS := slices.Sorted(maps.Keys(certsTLS))
 	certsCrtSh, err := readCrtSh(filenameCrtSh, hostsTLS)
 	if err != nil {
 		return fmt.Errorf("could load crt.sh file: %w", err)