From 9efb7755b261d3cdbaa376904710b122bf9ee1e7 Mon Sep 17 00:00:00 2001
From: Hongbo Liu <hbliu@freewheel.tv>
Date: Wed, 16 May 2018 18:51:48 -0400
Subject: [PATCH] add command `CmdPaletteReload` to reload commands list

---
 after/plugin/ctrlp.vim        |  1 +
 autoload/ctrlp/cmdpalette.vim | 20 +++++++++++++-------
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/after/plugin/ctrlp.vim b/after/plugin/ctrlp.vim
index d98d3ca..9c74dd4 100644
--- a/after/plugin/ctrlp.vim
+++ b/after/plugin/ctrlp.vim
@@ -6,6 +6,7 @@ let s:save_cpo = &cpo
 set cpo&vim
 
 command! CtrlPCmdPalette call ctrlp#init(ctrlp#cmdpalette#id())
+command! -nargs=0 CmdPaletteReload call ctrlp#cmdpalette#load_commands_info()
 
 let &cpo = s:save_cpo
 unlet s:save_cpo
diff --git a/autoload/ctrlp/cmdpalette.vim b/autoload/ctrlp/cmdpalette.vim
index 3b48a13..a4129fb 100644
--- a/autoload/ctrlp/cmdpalette.vim
+++ b/autoload/ctrlp/cmdpalette.vim
@@ -38,22 +38,25 @@ endif
 
 " inspired by the same done in the python-mode plugin
 if has('python')
-  command! -nargs=1 CmdPalettePython python <args>
+  let s:python_cmd = "python"
 elseif has('python3')
-  command! -nargs=1 CmdPalettePython python3 <args>
+  let s:python_cmd = "python3"
 else
   echo "Could't initialize CtrlP CmdPalette: needs a python interpreter in vim"
   finish
 endif
 
+let s:path_to_commands = printf("%s/%s", expand("<sfile>:p:h"), "internal_commands.txt")
 
-CmdPalettePython << endofpython
+function! ctrlp#cmdpalette#load_commands_info()
+
+execute s:python_cmd . "<< endofpython"
 import vim
 import json
 
 # obtain the internal commands (file distributed with the plugin)
-path_to_script = vim.eval('expand("<sfile>")')
-path_to_commands = path_to_script.replace('cmdpalette.vim', 'internal_commands.txt')
+path_to_script = vim.eval('expand("<sfile>:p")')
+path_to_commands = vim.eval('s:path_to_commands')
 with open(path_to_commands) as commands_file:
     internal_commands = [l.strip() for l in commands_file.readlines()]
 
@@ -74,12 +77,15 @@ vim.command('let s:cmdpalette_commands = %s' % json.dumps(internal_commands + cu
 
 endofpython
 
+endfunction
+
+call ctrlp#cmdpalette#load_commands_info()
 
 " Append s:cmdpalette_var to g:ctrlp_ext_vars
 if exists('g:ctrlp_ext_vars') && !empty(g:ctrlp_ext_vars)
-	let g:ctrlp_ext_vars = add(g:ctrlp_ext_vars, s:cmdpalette_var)
+  let g:ctrlp_ext_vars = add(g:ctrlp_ext_vars, s:cmdpalette_var)
 else
-	let g:ctrlp_ext_vars = [s:cmdpalette_var]
+  let g:ctrlp_ext_vars = [s:cmdpalette_var]
 endif