From 43fd7630e860693c2e150ef0a63c97f842671024 Mon Sep 17 00:00:00 2001
From: Oliver Breitwieser <oliver@breitwieser.eu>
Date: Sun, 18 Jul 2021 15:24:21 +0200
Subject: [PATCH] Fix support for using ripgrep with vim-dispatch

Same as ag, [ripgrep](https://github.com/BurntSushi/ripgrep) supports a
`--vimgrep` flag so that it can be used as `g:ackprog`.

However, when used via `vim-dispatch`, stdin is not closed which ripgrep
interprets as a pattern to be supplied and hence fails to execute
anything.

To disable this behavior, we need to explicitly supply a root-directory
to start searching in.
---
 autoload/ack.vim | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/autoload/ack.vim b/autoload/ack.vim
index b6afdba4..de50870d 100644
--- a/autoload/ack.vim
+++ b/autoload/ack.vim
@@ -169,6 +169,23 @@ function! s:Init(cmd) "{{{
   endif
 endfunction "}}}
 
+function! s:NeedToAppendPwd(grepprg, grepargs) "{{{
+  let l:binary_append_needed = ['rg', 'ripgrep']
+  let l:folders = split(a:grepprg, '/')
+  let l:program = split(l:folders[-1], ' ')
+  if index(l:binary_append_needed, l:program[0]) >= 0
+    " Check if user supplied directory arguments to grepprg
+    let l:args = split(a:grepargs)
+    if !isdirectory(l:args[-1])
+      return 1
+    else
+      return 0
+    endif
+  else
+    return 0
+  endif
+endfunction "}}}
+
 function! s:QuickHelp() "{{{
   execute 'edit' globpath(&rtp, 'doc/ack_quick_help.txt')
 
@@ -193,8 +210,13 @@ function! s:SearchWithDispatch(grepprg, grepargs, grepformat) "{{{
     let l:grepprg = a:grepprg
   endif
 
+  let l:grepargs = a:grepargs
+  if s:NeedToAppendPwd(a:grepprg, a:grepargs)
+    let l:grepargs = l:grepargs . ' ' . getcwd()
+  endif
+
   try
-    let &l:makeprg     = l:grepprg . ' ' . a:grepargs
+    let &l:makeprg     = l:grepprg . ' ' . l:grepargs
     let &l:errorformat = a:grepformat
 
     Make