nvim: add telescope, remove CtrP

.config/nvim/lua/my/tools.lua

@@ -1,5 +1,6 @@
 require('my/plugins')
 require('my/keymaps')
+require('my/fileformats')
 
 packer.use {
     'https://github.com/folke/which-key.nvim',
@@ -10,13 +11,46 @@ packer.use {
 }
 
 packer.use {
-    'https://github.com/ctrlpvim/ctrlp.vim',
+    'https://github.com/nvim-telescope/telescope.nvim',
+    tag = '*',
+    requires = {
+        'https://github.com/nvim-lua/plenary.nvim',
+        'https://github.com/nvim-treesitter/nvim-treesitter',
+    },
     config = function()
-        vim.g.ctrlp_map = '<C-P>'
-        vim.g.ctrlp_cmd = 'CtrlP'
-        map('n', '<Leader><S-b>', ':CtrlPMRUFiles<cr>')
-        vim.g.ctrlp_root_markers = {
-            '.projectile', '.luarc.json', '.clang-format'
+        local telescope = require('telescope')
+        local actions = require('telescope.actions')
+        telescope.load_extension('media_files') -- FIXME: does not work
+
+        require('telescope').setup {
+            mappings = {
+                i = {
+                    ["<C-_>"] = actions.which_key,
+                },
+                n = {
+                    ["?"] = actions.which_key,
+                }
+            },
+            extensions = {
+                media_files = {
+                    filetypes = { 'png', 'webp', 'jpg', 'jpeg', 'epub', 'pdf' }
+                }
+            }
         }
+
+        map('n', '<Leader>tb', require('telescope.builtin').buffers)
+        map('n', '<Leader>tf', function() require('telescope.builtin').find_files({ cwd = MY_get_project_root() }) end)
+        map('n', '<Leader>tr', require('telescope.builtin').oldfiles)
+        map('n', '<Leader>tg', require('telescope.builtin').live_grep)
+        map('n', '<Leader>tm', require('telescope.builtin').man_pages)
     end
 }
+
+packer.use {
+    'https://github.com/nvim-telescope/telescope-media-files.nvim',
+    requires = {
+        'https://github.com/nvim-lua/popup.nvim',
+        'https://github.com/nvim-lua/plenary.nvim',
+        'https://github.com/nvim-telescope/telescope.nvim'
+    }
+}