From 16cb002a8dab90d7e01ee13ab75d8a4661d77a84 Mon Sep 17 00:00:00 2001
From: gutmet <me.git@gutmet.org>
Date: Sun, 23 Dec 2018 15:51:20 +0100
Subject: [PATCH] add 'DirsWithPrefix' function

---
 goutil.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/goutil.go b/goutil.go
index 3db56d1..cc2f515 100644
--- a/goutil.go
+++ b/goutil.go
@@ -85,6 +85,22 @@ func PathExists(path string) bool {
 	}
 }
 
+func DirsWithPrefix(path string, prefix string) ([]string, error) {
+	dirs := []string{}
+	files, err := ioutil.ReadDir(path)
+	if err != nil {
+		return dirs, err
+	}
+	for _, file := range files {
+		if file.IsDir() {
+			if name := file.Name(); strings.HasPrefix(name, prefix) {
+				dirs = append(dirs, name)
+			}
+		}
+	}
+	return dirs, nil
+}
+
 func AskFor(question string) (string, error) {
 	fmt.Print(question + ": ")
 	reader := bufio.NewReader(os.Stdin)