fix: reuse keys func

apk/apk.go

@@ -38,14 +38,14 @@ import (
 	"io"
 	"net/mail"
 	"os"
-	"sort"
 	"strings"
 	"sync/atomic"
 	"text/template"
 	"time"
 
 	"github.com/goreleaser/nfpm/v2"
 	"github.com/goreleaser/nfpm/v2/files"
+	"github.com/goreleaser/nfpm/v2/internal/maps"
 	"github.com/goreleaser/nfpm/v2/internal/sign"
 	gzip "github.com/klauspost/pgzip"
 )
@@ -352,7 +352,7 @@ func createBuilderControl(info *nfpm.Info, size int64, dataDigest []byte) func(t
 			".pre-deinstall":  info.Scripts.PreRemove,
 			".post-deinstall": info.Scripts.PostRemove,
 		}
-		for _, name := range keys(scripts) {
+		for _, name := range maps.Keys(scripts) {
 			path := scripts[name]
 			if path == "" {
 				continue
@@ -512,12 +512,3 @@ func writeControl(w io.Writer, data controlData) error {
 	})
 	return template.Must(tmpl.Parse(controlTemplate)).Execute(w, data)
 }
-
-func keys(m map[string]string) []string {
-	keys := make([]string, 0, len(m))
-	for key := range m {
-		keys = append(keys, key)
-	}
-	sort.Strings(keys)
-	return keys
-}

arch/arch.go

@@ -10,7 +10,6 @@ import (
 	"fmt"
 	"io"
 	"os"
-	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -19,6 +18,7 @@ import (
 	"github.com/goreleaser/nfpm/v2/files"
 	"github.com/klauspost/compress/zstd"
 	"github.com/klauspost/pgzip"
+	"golang.org/x/exp/maps"
 )
 
 var ErrInvalidPkgName = errors.New("archlinux: package names may only contain alphanumeric characters or one of ., _, +, or -, and may not start with hyphen or dot")
@@ -402,7 +402,7 @@ func createPkginfo(info *nfpm.Info, tw *tar.Writer, totalSize int64) (*MtreeEntr
 }
 
 func writeKVPairs(w io.Writer, pairs map[string]string) error {
-	for _, key := range keys(pairs) {
+	for _, key := range maps.Keys(pairs) {
 		if err := writeKVPair(w, key, pairs[key]); err != nil {
 			return err
 		}
@@ -569,7 +569,7 @@ func createScripts(info *nfpm.Info, tw *tar.Writer) error {
 }
 
 func writeScripts(w io.Writer, scripts map[string]string) error {
-	for _, script := range keys(scripts) {
+	for _, script := range maps.Keys(scripts) {
 		fmt.Fprintf(w, "function %s() {\n", script)
 
 		fl, err := os.Open(scripts[script])
@@ -592,12 +592,3 @@ func writeScripts(w io.Writer, scripts map[string]string) error {
 
 	return nil
 }
-
-func keys(m map[string]string) []string {
-	keys := make([]string, 0, len(m))
-	for key := range m {
-		keys = append(keys, key)
-	}
-	sort.Strings(keys)
-	return keys
-}

deb/deb.go

@@ -13,7 +13,6 @@ import (
 	"io"
 	"os"
 	"path/filepath"
-	"sort"
 	"strings"
 	"text/template"
 	"time"
@@ -26,6 +25,7 @@ import (
 	"github.com/goreleaser/nfpm/v2/internal/sign"
 	"github.com/klauspost/compress/zstd"
 	"github.com/ulikunitz/xz"
+	"golang.org/x/exp/maps"
 )
 
 const packagerName = "deb"
@@ -607,7 +607,7 @@ func createControl(instSize int64, md5sums []byte, info *nfpm.Info) (controlTarG
 		},
 	}
 
-	for _, filename := range keys(specialFiles) {
+	for _, filename := range maps.Keys(specialFiles) {
 		dets := specialFiles[filename]
 		if dets.fileName == "" {
 			continue
@@ -801,12 +801,3 @@ func writeControl(w io.Writer, data controlData) error {
 	})
 	return template.Must(tmpl.Parse(controlTemplate)).Execute(w, data)
 }
-
-func keys[T any](m map[string]T) []string {
-	keys := make([]string, 0, len(m))
-	for key := range m {
-		keys = append(keys, key)
-	}
-	sort.Strings(keys)
-	return keys
-}

internal/maps/maps.go

@@ -0,0 +1,12 @@
+package maps
+
+import "sort"
+
+func Keys[T any](m map[string]T) []string {
+	keys := make([]string, 0, len(m))
+	for key := range m {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	return keys
+}