Revert "fix(#1976): support non-standard $GIT_DIR (#2012)"

This reverts commit 517dee64c1.

lua/nvim-tree/git/init.lua

@@ -2,7 +2,6 @@ local log = require "nvim-tree.log"
 local utils = require "nvim-tree.utils"
 local git_utils = require "nvim-tree.git.utils"
 local Runner = require "nvim-tree.git.runner"
-local Watch = require "nvim-tree.explorer.watch"
 local Watcher = require("nvim-tree.watcher").Watcher
 local Iterator = require "nvim-tree.iterators.node-iterator"
 local explorer_node = require "nvim-tree.explorer.node"
@@ -165,34 +164,22 @@ function M.load_project_status(cwd)
   }
 
   local watcher = nil
-
   if M.config.filesystem_watchers.enable then
     log.line("watcher", "git start")
 
-    local git_directory = git_utils.get_git_directory(project_root)
-
-    if git_directory == nil then
-      log.line("watcher", "could not found the location of .git folder")
-    else
-      local callback = function(w)
-        log.line("watcher", "git event scheduled '%s'", w.project_root)
-        utils.debounce("git:watcher:" .. w.project_root, M.config.filesystem_watchers.debounce_delay, function()
-          if w.destroyed then
-            return
-          end
-          reload_tree_at(w.project_root)
-        end)
-      end
-
-      -- Add GIT_DIR to the list of directory to ignore
-      -- local base_gitdir = utils.path_basename(git_directory)
-      -- Watch.ignore_dir(base_gitdir)
-      Watch.ignore_dir(git_directory)
-
-      watcher = Watcher:new(git_directory, WATCHED_FILES, callback, {
-        project_root = project_root,
-      })
+    local callback = function(w)
+      log.line("watcher", "git event scheduled '%s'", w.project_root)
+      utils.debounce("git:watcher:" .. w.project_root, M.config.filesystem_watchers.debounce_delay, function()
+        if w.destroyed then
+          return
+        end
+        reload_tree_at(w.project_root)
+      end)
     end
+
+    watcher = Watcher:new(utils.path_join { project_root, ".git" }, WATCHED_FILES, callback, {
+      project_root = project_root,
+    })
   end
 
   M.projects[project_root] = {

lua/nvim-tree/git/utils.lua

@@ -1,6 +1,7 @@
 local M = {}
 local log = require "nvim-tree.log"
-local utils = require "nvim-tree.utils"
+
+local has_cygpath = vim.fn.executable "cygpath" == 1
 
 function M.get_toplevel(cwd)
   local profile = log.profile_start("git toplevel %s", cwd)
@@ -17,9 +18,16 @@ function M.get_toplevel(cwd)
     return nil
   end
 
-  toplevel = utils.norm_path(toplevel)
-  if toplevel == nil then
-    return nil
+  -- git always returns path with forward slashes
+  if vim.fn.has "win32" == 1 then
+    -- msys2 git support
+    if has_cygpath then
+      toplevel = vim.fn.system("cygpath -w " .. vim.fn.shellescape(toplevel))
+      if vim.v.shell_error ~= 0 then
+        return nil
+      end
+    end
+    toplevel = toplevel:gsub("/", "\\")
   end
 
   -- remove newline
@@ -86,28 +94,4 @@ function M.file_status_to_dir_status(status, cwd)
   return r
 end
 
-function M.get_git_directory(cwd)
-  local profile = log.profile_start("git directory %s", cwd)
-
-  local cmd = { "git", "-C", cwd, "rev-parse", "--absolute-git-dir" }
-  log.line("git", vim.inspect(cmd))
-
-  local git_dir = vim.fn.system(cmd)
-
-  log.raw("git", git_dir)
-  log.profile_end(profile)
-
-  if vim.v.shell_error ~= 0 or not git_dir or #git_dir == 0 or git_dir:match "fatal" then
-    return nil
-  end
-
-  git_dir = utils.norm_path(git_dir)
-  if git_dir == nil then
-    return nil
-  end
-
-  -- remove newline
-  return git_dir:sub(0, -2)
-end
-
 return M