diff --git a/cmd/prune/main.go b/cmd/prune/main.go
index 26c1605..97f1d6b 100644
--- a/cmd/prune/main.go
+++ b/cmd/prune/main.go
@@ -16,6 +16,8 @@ import (
 	"strings"
 	"syscall"
 	"time"
+
+	"ffmpeg.d/pkg/fs"
 )
 
 func main() {
@@ -244,23 +246,9 @@ func mv(wPath, rPath string) error {
 }
 
 func lsd(d string) ([]string, error) {
-	return ls(d, true)
+	return fs.LsD(d)
 }
 
 func lsf(d string) ([]string, error) {
-	return ls(d, false)
-}
-
-func ls(d string, dirs bool) ([]string, error) {
-	entries, err := os.ReadDir(d)
-
-	results := make([]string, 0, len(entries))
-	for i := range entries {
-		if dirs == entries[i].IsDir() {
-			results = append(results, path.Join(d, entries[i].Name()))
-		}
-	}
-	sort.Strings(results)
-
-	return results, err
+	return fs.LsF(d)
 }
diff --git a/pkg/fs/ls.go b/pkg/fs/ls.go
new file mode 100644
index 0000000..4854559
--- /dev/null
+++ b/pkg/fs/ls.go
@@ -0,0 +1,29 @@
+package fs
+
+import (
+	"os"
+	"path"
+	"sort"
+)
+
+func LsD(d string) ([]string, error) {
+	return ls(d, true)
+}
+
+func LsF(d string) ([]string, error) {
+	return ls(d, false)
+}
+
+func ls(d string, dirs bool) ([]string, error) {
+	entries, err := os.ReadDir(d)
+
+	results := make([]string, 0, len(entries))
+	for i := range entries {
+		if dirs == entries[i].IsDir() {
+			results = append(results, path.Join(d, entries[i].Name()))
+		}
+	}
+	sort.Strings(results)
+
+	return results, err
+}