From 8417396e3f441ec85ffcd9260e19e4d0a00cb243 Mon Sep 17 00:00:00 2001
From: Scott Pierce <ddrscott@gmail.com>
Date: Fri, 6 Aug 2021 15:02:05 -0500
Subject: [PATCH] Use `ripgrep` instead of `ag` as default grep program

Resolves: https://github.com/ddrscott/vim-side-search/issues/10
---
 README.md              | 35 +++++++++++++++++++++--------------
 ftdetect/ag.vim        |  1 -
 ftdetect/rg.vim        |  1 +
 plugin/side-search.vim |  8 ++++++--
 syntax/ag.vim          |  9 ---------
 syntax/rg.vim          |  8 ++++++++
 6 files changed, 36 insertions(+), 26 deletions(-)
 delete mode 100644 ftdetect/ag.vim
 create mode 100644 ftdetect/rg.vim
 delete mode 100644 syntax/ag.vim
 create mode 100644 syntax/rg.vim

diff --git a/README.md b/README.md
index cda48cd..d69c973 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,14 @@
 ## Overview
 The `quickfix` window is great, but it would be nice to get some context around
-our searches. This plugin adds `ag` output to a side buffer with quick
+our searches. This plugin adds `rg` output to a side buffer with quick
 navigation mappings using comfortable Vim conventions.
 
 ![Simple Demo](side-search-demo.gif)
 
 ## Features
-- step through `ag` output instead of `quickfix` output
-- syntax highlighting of `ag` output
-- mappable to search current word under cursor
+- step through `rg` output instead of `quickfix` output
+- syntax highlighting of `rg` output
+- mappable to search current word under the cursor
 - configurable `g:side_search_prg` similar to `grepprg`
 - vertical or horizontal split output via `g:side_search_splitter`
 
@@ -23,27 +23,27 @@ qf              - :grep! to Quickfix
 
 ## Prerequisites
 We rely on [The Silver Searcher](https://github.com/ggreer/the_silver_searcher)
-to perform our file/text searches for us. Theoretically any program which has
-the same output could also work, but that we only test using `ag` output.
+to perform our file/text searches for us. Theoretically, any program which has
+the same output could also work, but that we only test using `rg` output.
 
-To install `ag` command on OSX:
+To install `rg` command on OSX:
 
 ```sh
-brew install the_silver_searcher
+brew install ripgrep
 ```
 
-For refer to
-[The Silver Searcher](https://github.com/ggreer/the_silver_searcher)
-for more instructions.
+Refer to [Ripgrep](https://github.com/BurntSushi/ripgrep) for more instructions.
 
 
 ## Global Configuration
 ```vim
 " How should we execute the search?
 " --heading and --stats are required!
-let g:side_search_prg = 'ag --word-regexp'
+let g:side_search_prg = 'rg --word-regexp'
   \. " --ignore='*.js.map'"
   \. " --heading --stats -B 1 -A 4"
+  \. " --case-sensitive"
+  \. " --line-number"
 
 " Can use `vnew` or `new`
 let g:side_search_splitter = 'vnew'
@@ -74,9 +74,16 @@ Surround terms with double quotes
 :SideSearch "cats and dogs"
 ```
 
-> How to pass extra args to `ag`?
+> How to pass extra args to `rg`?
 
 Just do it :)
 ```
-:SideSearch --js MyAwesomeComponent
+:SideSearch -t js MyAwesomeComponent
 ```
+
+> What happened to using The Silver Searcher?
+
+The `ag` program was deprecated back in 2016. https://github.com/rking/ag.vim/issues/124
+We moved to `ripgrep` as a modern alternative.
+Ultimately, any program can be used by setting `g:side_search_prg` and has output matching out syntax highlighter should
+work.
diff --git a/ftdetect/ag.vim b/ftdetect/ag.vim
deleted file mode 100644
index 5942a34..0000000
--- a/ftdetect/ag.vim
+++ /dev/null
@@ -1 +0,0 @@
-au BufNewFile,BufRead *.ag set filetype=ag
diff --git a/ftdetect/rg.vim b/ftdetect/rg.vim
new file mode 100644
index 0000000..829e314
--- /dev/null
+++ b/ftdetect/rg.vim
@@ -0,0 +1 @@
+au BufNewFile,BufRead *.rg set filetype=rg
diff --git a/plugin/side-search.vim b/plugin/side-search.vim
index 6b4f7a7..fcf77cf 100644
--- a/plugin/side-search.vim
+++ b/plugin/side-search.vim
@@ -55,7 +55,11 @@ endfunction
 
 function! s:defaults() abort
   if !exists('g:side_search_prg')
-    let g:side_search_prg = 'ag --word-regexp --heading --stats -C 2 --group'
+    if executable('rg')
+      let g:side_search_prg = 'rg --word-regexp --heading --stats -C 2 --case-sensitive --line-number'
+    else
+      let g:side_search_prg = 'ag --word-regexp --heading --stats -C 2 --group'
+    endif
   endif
   if !exists('g:side_search_splitter')
     let g:side_search_splitter = 'vnew'
@@ -218,7 +222,7 @@ function! SideSearch(args) abort
   call feedkeys(":let &hlsearch=1 \| echo \<CR>", 'n')
 
   " set this stuff after execute for better performance
-  setlocal nomodifiable filetype=ag
+  setlocal nomodifiable filetype=rg
 endfunction
 
 " Create a command to call SideSearch
diff --git a/syntax/ag.vim b/syntax/ag.vim
deleted file mode 100644
index e9522e1..0000000
--- a/syntax/ag.vim
+++ /dev/null
@@ -1,9 +0,0 @@
-syntax match agPath "\v^(\d+[:-])@!.+$"
-highlight link agPath Directory
-
-syntax match agContext "\v^(\d+\-).*$"
-highlight link agContext Comment
-
-syntax match agComment "\v^[#-].*"
-highlight link agComment Comment
-
diff --git a/syntax/rg.vim b/syntax/rg.vim
new file mode 100644
index 0000000..c8793de
--- /dev/null
+++ b/syntax/rg.vim
@@ -0,0 +1,8 @@
+syntax match rgPath "\v^(\d+[:-])@!.+$"
+highlight link rgPath Directory
+
+syntax match rgContext "\v^(\d+\-).*$"
+highlight link rgContext Comment
+
+syntax match rgComment "\v^[#-].*"
+highlight link rgComment Comment