Added support for non-symlink checkouts on Windows when elevated rights are missing

This implementation mimicks the behavior of Git on Windows
Signed-off-by: Felix Kollmann <mail@fkollmann.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/worktree_windows.go b/worktree_windows.go
index d59448e..1bef6f7 100644
--- a/worktree_windows.go
+++ b/worktree_windows.go
@@ -3,6 +3,7 @@
 package git
 
 import (
+	"os"
 	"syscall"
 	"time"
 
@@ -18,3 +19,17 @@ func init() {
 		}
 	}
 }
+
+func isSymlinkWindowsNonAdmin(err error) bool {
+	const ERROR_PRIVILEGE_NOT_HELD syscall.Errno = 1314
+
+	if err != nil {
+		if errLink, ok := err.(*os.LinkError); ok {
+			if errNo, ok := errLink.Err.(syscall.Errno); ok {
+				return errNo == ERROR_PRIVILEGE_NOT_HELD
+			}
+		}
+	}
+
+	return false
+}