env cache

vim-jp · Jul 16, 2016 · 7b9e4d2 · 7b9e4d2
1 parent b1ab840
commit 7b9e4d2
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/autoload/go/env.vim b/autoload/go/env.vim
@@ -1,4 +1,13 @@
+let s:cache = {}
+
+function! go#env#cache_clear(key)
+  call remove(s:cache, a:key)
+endfunction
+
 function! go#env#root()
+  if has_key(s:cache, 'root')
+    return s:cache['root']
+  endif
   if executable('go')
     let root = substitute(system('go env GOROOT'), '\n', '', 'g')
     if v:shell_error
@@ -7,5 +16,6 @@ function! go#env#root()
   else
     let root = $GOROOT
   endif
+  let s:cache['root'] = root
   return root
 endfunction