neovim

commit f11f8546e7fed3bbd77ce30364580433c1bd4196
parent 1be37c245f27e2fa74347e002c5fd1c59f14422a
Author: Cameron Ring <cameron@cs.stanford.edu>
Date:   Sun, 16 Nov 2025 21:41:26 -0800

fix(vim.fs): root() should always return absolute path #36466


Diffstat:
M
runtime/lua/vim/fs.lua
 | 
3
++-
M
test/functional/lua/fs_spec.lua
 | 
8
++++++++

2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/runtime/lua/vim/fs.lua b/runtime/lua/vim/fs.lua
@@ -450,7 +450,8 @@ function M.root(source, marker)
     })
 
     if #paths ~= 0 then
-      return vim.fs.dirname(paths[1])
+      local dir = vim.fs.dirname(paths[1])
+      return dir and vim.fn.fnamemodify(dir, ':p:h') or nil
     end
   end
 
diff --git a/test/functional/lua/fs_spec.lua b/test/functional/lua/fs_spec.lua
@@ -432,6 +432,14 @@ describe('vim.fs', function()
       command('file lua://')
       eq(test_source_path, exec_lua([[return vim.fs.root(0, 'CMakePresets.json')]]))
     end)
+
+    it('returns an absolute path for an invalid filename', function()
+      assert(n.fn.isabsolutepath(test_source_path) == 1)
+      eq(
+        t.fix_slashes(test_source_path),
+        t.fix_slashes(exec_lua([[return vim.fs.root('file://asd', 'CMakePresets.json')]]))
+      )
+    end)
   end)
 
   describe('joinpath()', function()