From f4d94c598517fc72ec63f6dccc3b5752c63beff5 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Sun, 12 Dec 2021 13:29:58 -0500
Subject: [PATCH] Move CommonDir() from autoload to plugin

---
 autoload/fugitive.vim | 22 +---------------------
 plugin/fugitive.vim   | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index 87d57c4..d27278d 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -474,26 +474,6 @@ function! fugitive#GitVersion(...) abort
   return a:000[i] ==# get(components, i)
 endfunction
 
-let s:commondirs = {}
-function! fugitive#CommonDir(dir) abort
-  if empty(a:dir)
-    return ''
-  endif
-  if !has_key(s:commondirs, a:dir)
-    if filereadable(a:dir . '/commondir') && getfsize(a:dir . '/HEAD') >= 10
-      let cdir = get(readfile(a:dir . '/commondir', '', 1), 0, '')
-      if cdir =~# '^/\|^\a:/'
-        let s:commondirs[a:dir] = s:Slash(FugitiveVimPath(cdir))
-      else
-        let s:commondirs[a:dir] = simplify(a:dir . '/' . cdir)
-      endif
-    else
-      let s:commondirs[a:dir] = a:dir
-    endif
-  endif
-  return s:commondirs[a:dir]
-endfunction
-
 function! s:Dir(...) abort
   return a:0 ? FugitiveGitDir(a:1) : FugitiveGitDir()
 endfunction
@@ -1748,7 +1728,7 @@ function! fugitive#Find(object, ...) abort
   elseif rev =~# '^\.git/'
     let f = strpart(rev, 5)
     let fdir = dir . '/'
-    let cdir = fugitive#CommonDir(dir) . '/'
+    let cdir = FugitiveCommonDir(dir) . '/'
     if f =~# '^\.\./\.\.\%(/\|$\)'
       let f = simplify(len(tree) ? tree . f[2:-1] : fdir . f)
     elseif f =~# '^\.\.\%(/\|$\)'
diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 038f275..7b6ce09 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -282,12 +282,28 @@ function! FugitiveStatusline(...) abort
   return fugitive#Statusline()
 endfunction
 
+let s:commondirs = {}
 function! FugitiveCommonDir(...) abort
   let dir = FugitiveGitDir(a:0 ? a:1 : -1)
   if empty(dir)
     return ''
   endif
-  return fugitive#Find('.git/refs/..', dir)
+  if has_key(s:commondirs, dir)
+    return s:commondirs[dir]
+  endif
+  if getfsize(dir . '/HEAD') >= 10
+    let cdir = get(s:ReadFile(dir . '/commondir', 1), 0, '')
+    if cdir =~# '^/\|^\a:/'
+      let s:commondirs[dir] = s:Slash(FugitiveVimPath(cdir))
+    elseif len(cdir)
+      let s:commondirs[dir] = simplify(dir . '/' . cdir)
+    else
+      let s:commondirs[dir] = dir
+    endif
+  else
+    let s:commondirs[dir] = dir
+  endif
+  return s:commondirs[dir]
 endfunction
 
 function! FugitiveWorkTree(...) abort