vim: fix visual selection commands

- use <leader>gs to run fugitive's Git show on the selected text
 (must be a git ref)
- use <leader>k to run ack on the selected text

vim/functions.vim

@@ -64,6 +64,11 @@ function! CmdLine(str)
     call feedkeys(":" . a:str)
 endfunction
 
+" Call Git show on the selected text (must be a git ref)
+function! GitShowVisual() range
+   execute "Git show " . @*
+endfunction
+
 function! VisualSelection(direction, extra_filter) range
     let l:saved_reg = @"
     execute "normal! vgvy"
@@ -71,7 +76,7 @@ function! VisualSelection(direction, extra_filter) range
     let l:pattern = escape(@", "\\/.*'$^~[]")
     let l:pattern = substitute(l:pattern, "\n$", "", "")
 
-    if a:direction == 'gv'
+    if a:direction == 'ack'
         call CmdLine("Ack '" . l:pattern . "' ")
     elseif a:direction == 'replace'
         call CmdLine("%s" . '/'. l:pattern . '/')

vim/shortcuts.vim

@@ -70,9 +70,6 @@ nmap <leader>h :ALEHover<CR>
 nmap <leader>r :ALERename<CR>
 map <leader>` :ALELint<CR>
 
-" call ack when pressing gv in visual
-vnoremap <silent> gv :call VisualSelection('gv', '')<CR>
-
 map <leader>nn :NERDTreeToggle<CR>
 map <leader>o :BufExplorer<CR>
 
@@ -85,7 +82,7 @@ map <leader>b :CtrlPBuffer<CR>
 map <leader>f :CtrlPMRUFiles<CR>
 map <leader>t :CtrlPTag<CR>
 
-
+"Misc stuff
 let s:uname=''
 let s:uname = system('uname | tr -d "\n"') " Get platform name (stripping the trailing newline)
 if s:uname == "Darwin"
@@ -107,6 +104,11 @@ noremap <Leader>p "*p
 noremap <Leader>Y "+y
 noremap <Leader>P "+p
 
-
 " A friggin python breakpoint. Invoke with @b "FIXME: make this decent
 let @b = 'A
breakpoint()€ýajkj0'
+
+
+" visual mode mappings
+vnoremap <silent> <leader>k :call VisualSelection('ack', '')<CR>
+vnoremap <silent> <leader>gs :call GitShowVisual()<CR>
+vnoremap <silent> <leader>r :call VisualSelection('replace', '')<CR>