From 96f0983e754694e592d4313f583cd31eaebfa80d Mon Sep 17 00:00:00 2001
From: Steven Arcangeli <stevearc@stevearc.com>
Date: Tue, 23 Apr 2024 20:20:58 -0700
Subject: [PATCH] fix(windows): file operation preview uses only backslash path
 separator (#336)

---
 lua/oil/adapters/files.lua |  2 +-
 lua/oil/util.lua           | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/lua/oil/adapters/files.lua b/lua/oil/adapters/files.lua
index 89eb810..cf6f73e 100644
--- a/lua/oil/adapters/files.lua
+++ b/lua/oil/adapters/files.lua
@@ -40,7 +40,7 @@ end
 M.to_short_os_path = function(path, entry_type)
   local shortpath = fs.shorten_path(fs.posix_to_os_path(path))
   if entry_type == "directory" then
-    shortpath = util.addslash(shortpath)
+    shortpath = util.addslash(shortpath, true)
   end
   return shortpath
 end
diff --git a/lua/oil/util.lua b/lua/oil/util.lua
index bd2f048..a685b14 100644
--- a/lua/oil/util.lua
+++ b/lua/oil/util.lua
@@ -337,10 +337,16 @@ M.set_highlights = function(bufnr, highlights)
 end
 
 ---@param path string
+---@param os_slash? boolean use os filesystem slash instead of posix slash
 ---@return string
-M.addslash = function(path)
-  if not vim.endswith(path, "/") then
-    return path .. "/"
+M.addslash = function(path, os_slash)
+  local slash = "/"
+  if os_slash and require("oil.fs").is_windows then
+    slash = "\\"
+  end
+
+  if not vim.endswith(path, slash) then
+    return path .. slash
   else
     return path
   end