nvim: init.vim: Switch to vim-clap

vim-clap seems to be much nicer and has better integration
with the floating window feature of neovim.

Use fzf again since we need cscope integration. Eventually
we would like to have a cscope provider for clap. Also fzf
seems to be installed by default on Manjaro i3.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>

nvim/init.vim

@@ -8,9 +8,9 @@ Plug 'ervandew/supertab'
 " EasyMotion - Allows <leader><leader>(b|e) to jump to (b)eginning or (end)
 " of words.
 Plug 'easymotion/vim-easymotion'
-" Fuzzy file search
-Plug 'lotabout/skim', { 'dir': '~/.skim', 'do': './install' }
-Plug 'lotabout/skim.vim'
+" Fuzzy search
+Plug 'junegunn/fzf.vim'
+Plug 'liuchengxu/vim-clap'
 " Remove extraneous whitespace when edit mode is exited
 Plug 'thirtythreeforty/lessspace.vim'
 " Status bar mods
@@ -193,20 +193,19 @@ nnoremap Q <Nop>
 nnoremap <Leader>pg :PlugUpgrade<CR>
 nnoremap <Leader>pd :PlugUpdate<CR>
 nnoremap <Leader>pc :PlugClean<CR>
-" For skim
-nnoremap <Leader>vf  :Files<CR>
-nnoremap <Leader>vg  :GFiles<CR>
-nnoremap <Leader>vb  :Buffers<CR>
-nnoremap <Leader>vL  :Lines<CR>
-nnoremap <Leader>vl  :BLines<CR>
-nnoremap <Leader>vt  :BTags<CR>
-nnoremap <Leader>vT  :Tags<CR>
-nnoremap <Leader>vc  :BCommits<CR>
-nnoremap <Leader>va  :Commits<CR>
-nnoremap <Leader>vch :History:<CR>
-nnoremap <Leader>vsh :History/<CR>
-" Use ripgrep to search for content in files
-nnoremap <Leader>/ :Rg<CR>
+" For Clap
+nnoremap <Leader>vf  :Clap files<CR>
+nnoremap <Leader>vg  :Clap gfiles<CR>
+nnoremap <Leader>vb  :Clap buffers<CR>
+nnoremap <Leader>vL  :Clap lines<CR>
+nnoremap <Leader>vl  :Clap blines<CR>
+nnoremap <Leader>vc  :Clap bcommits<CR>
+nnoremap <Leader>va  :Clap commits<CR>
+nnoremap <Leader>vh  :Clap history<CR>
+nnoremap <Leader>vm  :Clap command<CR>
+nnoremap <Leader>/   :Clap grep<CR>
+nnoremap <Leader>d   :Clap grep ++query=<cword><CR>
+" Quick buffer switching
 nnoremap <Leader>b :ls<CR>:b<Space>
 " Undo tree
 nnoremap <Leader>u :UndotreeToggle<CR>
@@ -221,8 +220,6 @@ nnoremap <Leader>sv  <Esc>:vsp<CR>
 nnoremap <Leader>x  <Esc>:x<CR>
 nnoremap <Leader>q  <Esc>:q<CR>
 nnoremap <Leader>qa <Esc>:qa<CR>
-" Search for the word under cursor
-noremap <Leader>d :exe ':Rg ' . expand('<cword>')<CR>
 " Open terminal
 nnoremap <Leader>te :vsp<CR> :terminal<CR>
 " Tab navigation shortcuts
@@ -458,7 +455,7 @@ autocmd BufRead,BufNewFile *.md,*.txt setlocal spell spelllang=en_uk
 " Automatically resize the window
 autocmd VimResized * wincmd =
 
-" CScope & skim integration
+" CScope & fuzzy integration
 " Taken from https://gist.github.com/amitab/cd051f1ea23c588109c6cfcb7d1d5776
 " However, the above gist has completely wrong mappings
 function! Cscope(option, query)
@@ -475,7 +472,7 @@ function! Cscope(option, query)
     let file = split(data[0], ":")
     execute 'e ' . '+' . file[1] . ' ' . file[0]
   endfunction
-  call skim#run(opts)
+  call fzf#run(opts)
 endfunction
 
 function! CscopeQuery(option)
@@ -530,30 +527,6 @@ nnoremap <silent> <Leader><Leader>sf :call CscopeQuery('7')<CR>
 nnoremap <silent> <Leader><Leader>si :call CscopeQuery('8')<CR>
 nnoremap <silent> <Leader><Leader>sa :call CscopeQuery('9')<CR>
 
-" Adapted from https://www.reddit.com/r/neovim/comments/djmehv/im_probably_really_late_to_the_party_but_fzf_in_a/
-let g:skim_layout = { 'window': 'call FloatingSkim()' }
-
-function! FloatingSkim()
-  let buf = nvim_create_buf(v:false, v:true)
-  call setbufvar(buf, '&signcolumn', 'no')
-
-  let height = float2nr(&lines * 0.4)
-  let width = float2nr(&columns * 0.8)
-  let horizontal = float2nr((&columns - width) / 2)
-  let vertical = float2nr((&columns - width) / 2)
-
-  let opts = {
-        \ 'relative': 'editor',
-        \ 'row': vertical,
-        \ 'col': horizontal,
-        \ 'width': width,
-        \ 'height': height,
-        \ 'style': 'minimal'
-        \ }
-
-  call nvim_open_win(buf, v:true, opts)
-endfunction
-
 function! NvimGdbNoTKeymaps()
   tnoremap <silent> <buffer> <esc> <c-\><c-n>
 endfunction