From 01d09bc9c0c6bd8b94fa7c0f2cb481f37f93056e Mon Sep 17 00:00:00 2001
From: Bertrand Benjamin <benjamin.bertrand@opytex.org>
Date: Sat, 20 Aug 2022 06:16:14 +0200
Subject: [PATCH] Feat: add telescope file_browser and rewrite keymap

---
 nvim/.config/nvim/lua/config/telescope.lua | 113 ++++++++++++++-------
 nvim/.config/nvim/lua/plugins.lua          |   1 +
 2 files changed, 80 insertions(+), 34 deletions(-)

diff --git a/nvim/.config/nvim/lua/config/telescope.lua b/nvim/.config/nvim/lua/config/telescope.lua
index 462b2b1..8ddcbba 100644
--- a/nvim/.config/nvim/lua/config/telescope.lua
+++ b/nvim/.config/nvim/lua/config/telescope.lua
@@ -1,46 +1,91 @@
+local status, telescope = pcall(require, "telescope")
+if (not status) then return end
+local builtin = require("telescope.builtin")
+
 local previewers = require('telescope.previewers')
 local Job = require('plenary.job')
 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
-        -- maybe we want to write something to the buffer here
-        vim.schedule(function()
-          vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, { 'BINARY' })
-        end)
-      end
-    end
-  }):sync()
+    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
+                -- maybe we want to write something to the buffer here
+                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,
-    file_ignore_patterns = {"**/*.pdf"},
-  },
+local fb_actions = require "telescope".extensions.file_browser.actions
+local function telescope_buffer_dir()
+  return vim.fn.expand('%:p:h')
+end
+
+telescope.setup {
+    defaults = {
+        buffer_previewer_maker = new_maker,
+        file_ignore_patterns = { "**/*.pdf" },
+    },
     extensions = {
         fzf = {
-            fuzzy = true,                    -- false will only do exact matching
-            override_generic_sorter = true,  -- override the generic sorter
-            override_file_sorter = true,     -- override the file sorter
-            case_mode = "smart_case",        -- or "ignore_case" or "respect_case"
+            fuzzy = true, -- false will only do exact matching
+            override_generic_sorter = true, -- override the generic sorter
+            override_file_sorter = true, -- override the file sorter
+            case_mode = "smart_case", -- or "ignore_case" or "respect_case"
             -- the default case_mode is "smart_case"
-        }
-  }
+        },
+        file_browser = {
+            theme = "dropdown",
+            -- disables netrw and use telescope-file-browser in its place
+            hijack_netrw = true,
+            mappings = {
+                ["n"] = {
+                    -- your custom normal mode mappings
+                    ["h"] = fb_actions.goto_parent_dir,
+                },
+            },
+        },
+    }
 }
 
-require('telescope').load_extension('fzf')
+telescope.load_extension('fzf')
+telescope.load_extension('file_browser')
 
-local map = vim.api.nvim_set_keymap
--- Find files using Telescope command-line sugar.
-map('n', '<leader>e', '<cmd>Telescope find_files<cr>', {})
-map('n', '<leader>g', '<cmd>Telescope live_grep<cr>', {})
-map('n', '<leader>b', '<cmd>Telescope buffers<cr>', {})
-map('n', '<leader>h', '<cmd>Telescope help_tags<cr>', {})
 
+-- keymaps
+vim.keymap.set('n', '<leader>e',
+    function()
+        builtin.find_files({
+        })
+    end)
+vim.keymap.set('n', '<leader>g', function()
+    builtin.live_grep()
+end)
+vim.keymap.set('n', '<leader>b', function()
+    builtin.buffers()
+end)
+vim.keymap.set('n', '<leader>h', function()
+    builtin.resume()
+end)
+-- vim.keymap.set('n', '<leader>d', function()
+--     builtin.diagnostics()
+-- end)
+vim.keymap.set("n", "<leader>fb", function()
+  telescope.extensions.file_browser.file_browser({
+    path = "%:p:h",
+    cwd = telescope_buffer_dir(),
+    respect_gitignore = false,
+    hidden = true,
+    grouped = true,
+    previewer = false,
+    initial_mode = "normal",
+    layout_config = { height = 40 }
+  })
+end)
diff --git a/nvim/.config/nvim/lua/plugins.lua b/nvim/.config/nvim/lua/plugins.lua
index 40586ae..f551b23 100644
--- a/nvim/.config/nvim/lua/plugins.lua
+++ b/nvim/.config/nvim/lua/plugins.lua
@@ -93,6 +93,7 @@ return packer.startup(function(use)
     }
 
     use {'nvim-telescope/telescope-fzf-native.nvim', run = 'make' }
+    use { "nvim-telescope/telescope-file-browser.nvim" }
 
     use {
         'lervag/vimtex',