From 380e4b6cd79da572f158456216b9a7177fd6efae Mon Sep 17 00:00:00 2001
From: Daniel Siepmann <coding@daniel-siepmann.de>
Date: Wed, 23 Mar 2022 09:31:33 +0100
Subject: [PATCH] Add first custom Neovim Telescope picker

This adds a list of my custom defined functions for easier calling.
---
 .../_extensions/custom_functions.lua          | 33 +++++++++++++++++++
 .../neovim/configuration/plugin/mappings.vim  |  1 +
 home/programs/neovim/plugins/telescope.lua    |  3 +-
 3 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 home/programs/neovim/configuration/lua/telescope/_extensions/custom_functions.lua

diff --git a/home/programs/neovim/configuration/lua/telescope/_extensions/custom_functions.lua b/home/programs/neovim/configuration/lua/telescope/_extensions/custom_functions.lua
new file mode 100644
index 0000000..fd8f71a
--- /dev/null
+++ b/home/programs/neovim/configuration/lua/telescope/_extensions/custom_functions.lua
@@ -0,0 +1,33 @@
+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_functions = function(opts)
+    opts = opts or {}
+
+    local results = { 'CopyFileName', 'CopyRelativeFilePath', 'CopyFullFilePath' }
+
+    pickers.new(opts, {
+        prompt_title = 'Custom Functions',
+        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({
+    -- setup = ctags_setup,
+    exports = { custom_functions = custom_functions },
+})
diff --git a/home/programs/neovim/configuration/plugin/mappings.vim b/home/programs/neovim/configuration/plugin/mappings.vim
index 473717c..2cfe61b 100644
--- a/home/programs/neovim/configuration/plugin/mappings.vim
+++ b/home/programs/neovim/configuration/plugin/mappings.vim
@@ -14,6 +14,7 @@ nnoremap <leader>pp :Telescope builtin<cr>
 nnoremap <leader>pf :Telescope git_files<cr>
 nnoremap <leader>pb :Telescope buffers<cr>
 nnoremap <leader>pt :Telescope ctags_outline outline<cr>
+nnoremap <leader>pc :Telescope custom_functions<cr>
 nnoremap <silent> <leader>pc :call TelescopeCurrentComposerPackage()<cr>
 
 nnoremap <leader>k :NERDTreeToggle<cr>
diff --git a/home/programs/neovim/plugins/telescope.lua b/home/programs/neovim/plugins/telescope.lua
index 306fdcc..429f469 100644
--- a/home/programs/neovim/plugins/telescope.lua
+++ b/home/programs/neovim/plugins/telescope.lua
@@ -1,4 +1,3 @@
--- TODO: Add custom source (functions) e.g. the copy functions
 local telescopeActions = require "telescope.actions"
 local telescopeActionsLayout = require "telescope.actions.layout"
 require('telescope').setup({
@@ -27,3 +26,5 @@ require('telescope').setup({
         },
     },
 })
+
+require('telescope').load_extension('custom_functions')