Add util.File* functions

util/files.go

@@ -0,0 +1,20 @@
+package util
+
+import (
+	"os"
+
+	"github.com/rwxrob/bonzai/filter"
+)
+
+func Files(dir string) []string {
+	files := []string{}
+	finfo, _ := os.ReadDir(dir)
+	for _, f := range finfo {
+		files = append(files, f.Name())
+	}
+	return files
+}
+
+func FilesWith(dir, pre string) []string {
+	return filter.HasPrefix(Files(dir), pre)
+}

util/files_test.go

@@ -0,0 +1,23 @@
+package util_test
+
+import (
+	"github.com/rwxrob/bonzai/filter"
+	"github.com/rwxrob/bonzai/util"
+)
+
+func ExampleFiles() {
+	filter.Println(util.Files("testdata/files"))
+	// Output:
+	// bar
+	// blah
+	// foo
+	// other
+	// some
+}
+
+func ExampleFilesWith() {
+	filter.Println(util.FilesWith("testdata/files", "b"))
+	// Output:
+	// bar
+	// blah
+}