Replace neovim telescope with fzf

I've added fzf to zsh and don't want to have multiple different
solutions for same problem.
I therefore use fzf-lua within neovim which replaces telescope.

home/programs/neovim.nix

@@ -162,17 +162,6 @@ let
     ];
   };
 
-  telescope-ctags-outline = pkgs.vimUtils.buildVimPluginFrom2Nix rec {
-    pname = "telescope-ctags-outline";
-    version = "35b2df9545f72352502703ba06b7ab711fa25e51";
-    src = pkgs.fetchFromGitHub {
-      owner = "fcying";
-      repo = "${pname}.nvim";
-      rev = version;
-      sha256 = "e8QcD7H2unmoaLaN1JUxtOGQYBJGAXtfSnj8sW66ff4=";
-    };
-  };
-
 in {
   enable = true;
 
@@ -225,15 +214,9 @@ in {
     }
 
     {
-      plugin = telescope-nvim;
+      plugin = fzf-lua;
       type = "lua";
-      config = builtins.readFile(./neovim/plugins/telescope.lua);
-    }
-
-    {
-      plugin = telescope-ctags-outline;
-      type = "lua";
-      config = builtins.readFile(./neovim/plugins/telescope-ctags-outline.lua);
+      config = builtins.readFile(./neovim/plugins/fzf-lua.lua);
     }
 
     dressing-nvim

home/programs/neovim/configuration/lua/telescope/_extensions/custom_runs.lua

@@ -1,32 +0,0 @@
-local telescope = require('telescope')
-local pickers = require('telescope.pickers')
-local finders = require('telescope.finders')
-local actions = require('telescope.actions')
-local action_state = require('telescope.actions.state')
-local conf = require('telescope.config').values
-
-local custom_runs = function(opts)
-    opts = opts or {}
-
-    local results = { 'CopyFileName', 'CopyRelativeFilePath', 'CopyFullFilePath' }
-
-    pickers.new(opts, {
-        prompt_title = 'Custom Runs',
-        finder = finders.new_table {
-            results = results
-        },
-        sorter = conf.generic_sorter(opts),
-        attach_mappings = function(prompt_bufnr, map)
-            actions.select_default:replace(function()
-                actions.close(prompt_bufnr)
-                local selection = action_state.get_selected_entry()
-                vim.api.nvim_call_function(selection[1], {})
-            end)
-            return true
-        end,
-    }):find()
-end
-
-return telescope.register_extension({
-    exports = { custom_runs = custom_runs },
-})

home/programs/neovim/configuration/plugin/functions.vim

@@ -113,7 +113,7 @@ function! StartProfiling()
     execute(':profile file *')
 endfunc
 
-function! TelescopeCurrentComposerPackage()
+function! FilesInCurrentComposerPackage()
     let l:filePath = split(expand('%:p:h'), '/')
 
     while !filereadable('/' . join(l:filePath + ['composer.json'], '/')) && len(l:filePath)
@@ -121,7 +121,7 @@ function! TelescopeCurrentComposerPackage()
     endwhile
 
     if len(l:filePath)
-        execute(':Telescope find_files cwd=/' . join(l:filePath, '/'))
+        execute("lua require ('fzf-lua').files({cwd='/" . join(l:filePath, '/') . "'})")
     else
         echom 'No composer package detected.'
     endif

home/programs/neovim/configuration/plugin/mappings.vim

@@ -10,12 +10,11 @@ nnoremap <leader>v :set paste!<cr>
 nnoremap <leader>nh :nohlsearch<cr>
 
 " Configure navigation, e.g. go to buffer, file, ...
-nnoremap <leader>pp :lua require('telescope.builtin').builtin({ include_extensions = true })<cr>
-nnoremap <leader>pf :Telescope git_files<cr>
-nnoremap <leader>pb :Telescope buffers<cr>
-nnoremap <leader>pt :Telescope ctags_outline outline<cr>
-nnoremap <leader>pr :Telescope custom_runs<cr>
-nnoremap <silent> <leader>pc :call TelescopeCurrentComposerPackage()<cr>
+nnoremap <leader>pp :lua require('fzf-lua').builtin()<CR>
+nnoremap <leader>pf :lua require('fzf-lua').git_files()<CR>
+nnoremap <leader>pb :lua require('fzf-lua').buffers()<CR>
+nnoremap <leader>pt :lua require('fzf-lua').btags()<CR>
+nnoremap <silent> <leader>pc :call FilesInCurrentComposerPackage()<cr>
 
 " lca = lsp code action
 nnoremap <leader>lca :lua vim.lsp.buf.code_action()<cr>

home/programs/neovim/plugins/fzf-lua.lua

@@ -0,0 +1,16 @@
+require("fzf-lua").setup({
+    fzf_bin = "fzf-tmux",
+    fzf_tmux_opts = {
+        ["-p"] = "",
+        ["-y"] = "1",
+        ["-w"] = "95%",
+        ["-h"] = "75%",
+    },
+    winopts = {
+        preview = {
+            hidden = "hidden", -- I don't like a preview, keep space for selection
+        },
+    },
+})
+
+require("fzf-lua").register_ui_select()

home/programs/neovim/plugins/telescope-ctags-outline.lua

@@ -1,18 +0,0 @@
-require('telescope').setup({
-    extensions = {
-        ctags_outline = {
-            ctags = { 'ctags' },
-            ft_opt = {
-                css = '--css-types=vcit',
-                fluid = '--xml-types=si',
-                markdown = '--Markdown-types=csStT',
-                rst = '--reStructuredText-types=csSt',
-                sql = '--SQL-types=tE',
-                xml = '--xml-types=ci',
-                yaml = '--Yaml-types=t',
-            },
-        },
-    },
-})
-
-require('telescope').load_extension('ctags_outline')

home/programs/neovim/plugins/telescope.lua

@@ -1,31 +0,0 @@
-local telescope = require('telescope')
-local actions = require('telescope.actions')
-local actionsLayout = require('telescope.actions.layout')
-
-telescope.setup({
-    defaults = {
-        layout_strategy = 'center',
-        layout_config = {
-            width = 0.6,
-        },
-        sorting_strategy = 'ascending',
-        default_mappings = {
-            i = {
-                ["<C-j>"] = actions.move_selection_next,
-                ["<C-k>"] = actions.move_selection_previous,
-                ["<C-c>"] = actions.close,
-
-                ["<CR>"] = actions.select_default,
-                ["<C-h>"] = actions.which_key,
-                ["<C-v>"] = actions.select_vertical,
-
-                ["<C-p>"] = actionsLayout.toggle_preview,
-            },
-        },
-
-        preview = {
-            hide_on_startup = true,
-        },
-    },
-})
-telescope.load_extension('custom_runs')