feat(nvim): telescope configuration

nvim/.config/nvim/after/plugin/telescope.lua

@@ -1,3 +1,35 @@
+local previewers = require('telescope.previewers')
+local Job = require('plenary.job')
+
+-- Create a new maker that won't preview binary files
+-- https://github.com/nvim-telescope/telescope.nvim/wiki/Configuration-Recipes#dont-preview-binaries
+local new_maker = function(filepath, bufnr, opts)
+  filepath = vim.fn.expand(filepath)
+  Job:new({
+    command = 'file',
+    args = { '--mime-type', '-b', filepath },
+    on_exit = function(j)
+      local mime_type = vim.split(j:result()[1], '/')[1]
+      if mime_type == "text" then
+        previewers.buffer_previewer_maker(filepath, bufnr, opts)
+      else
+        vim.schedule(function()
+          vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, { 'BINARY' })
+        end)
+      end
+    end
+  }):sync()
+end
+
+require "telescope".setup{
+  defaults = {
+    buffer_previewer_maker = new_maker,
+    prompt_prefix = "$ "
+  }
+}
+
+require "telescope".load_extension("fzf")
+
 local map = vim.api.nvim_set_keymap
 
 local options = {