From 896d4fa0d02084438fd8c7e477243e8e7f088c4e Mon Sep 17 00:00:00 2001
From: Clayton Craft <clayton@craftyguy.net>
Date: Tue, 10 Aug 2021 13:02:44 -0700
Subject: [PATCH] pkg/misc: add function to return free space for given path

---
 pkgs/misc/misc.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/misc/misc.go b/pkgs/misc/misc.go
index 97f8ffd..b610020 100644
--- a/pkgs/misc/misc.go
+++ b/pkgs/misc/misc.go
@@ -6,6 +6,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"golang.org/x/sys/unix"
 )
 
 type StringSet map[string]bool
@@ -39,3 +40,10 @@ func RelativeSymlinkTargetToDir(symPath string, dir string) (string, error) {
 
 	return path, nil
 }
+
+func FreeSpace(path string) (uint64, error) {
+	var stat unix.Statfs_t
+	unix.Statfs(path, &stat)
+	size := stat.Bavail * uint64(stat.Bsize)
+	return size, nil
+}