From ecedcd060803ff01ca784814925ab60fa5f2db91 Mon Sep 17 00:00:00 2001
From: Tobias Kunicke <tobias@kunicke.eu>
Date: Mon, 17 Jul 2017 15:06:42 +0200
Subject: [PATCH] fix drone exec on windows with docker toolbox

---
 drone/exec/exec.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drone/exec/exec.go b/drone/exec/exec.go
index 341ccbd..ccba856 100644
--- a/drone/exec/exec.go
+++ b/drone/exec/exec.go
@@ -7,6 +7,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"time"
 
@@ -327,6 +328,15 @@ func exec(c *cli.Context) error {
 			workspacePath = c.String("workspace-path")
 		}
 		dir, _ := filepath.Abs(filepath.Dir(file))
+
+		if runtime.GOOS == "windows" {
+			base := filepath.VolumeName(dir)
+			if len(base) == 2 {
+				dir = dir[2:]
+				base = strings.ToLower(base[:1])
+				dir = "/" + base + filepath.ToSlash(dir)
+			}
+		}
 		volumes = append(volumes, c.String("prefix")+"_default:"+workspaceBase)
 		volumes = append(volumes, dir+":"+path.Join(workspaceBase, workspacePath))
 	}