clear vim prompt when updating the fs

lua/lib/fs_update.lua

@@ -1,22 +1,31 @@
 local api = vim.api
-local system = function(v) api.nvim_call_function('system', { v }) end
+
 local update_view = require 'lib/winutils'.update_view
 local refresh_tree = require 'lib/state'.refresh_tree
 local refresh_git = require 'lib/git'.refresh_git
-
 local rm = require 'lib/fs'.rm
 local rename = require 'lib/fs'.rename
 
-local input = function(v)
+local function system(v)
+    api.nvim_call_function('system', { v })
+end
+
+local function input(v)
     local param
     if type(v) == 'string' then param = { v } else param = v end
     return api.nvim_call_function('input', param)
 end
 
+local function clear_prompt()
+    api.nvim_command('echo "\r' .. string.rep(" ", 80) .. '"')
+end
+
 local function create_file(path)
     -- TODO: create files dynamically
     local new_file = input("Create file: " .. path)
     local new_path = path .. new_file
+    clear_prompt()
+    -- TODO: replace system() calls with luv calls
     if string.match(new_file, '.*/$') then
         system('mkdir -p ' .. new_path)
     else
@@ -28,8 +37,9 @@ local function create_file(path)
 end
 
 local function remove_file(filename, path)
-    local confirm = input("Remove " .. filename .. " ? y/n: ")
-    if string.match(confirm, 'y.*$') ~= nil then
+    local ans = input("Remove " .. filename .. " ? y/n: ")
+    clear_prompt()
+    if ans == "y" then
         rm(path .. filename)
         refresh_git()
         refresh_tree()
@@ -38,7 +48,8 @@ local function remove_file(filename, path)
 end
 
 local function rename_file(filename, path)
-    local new_path = input({"Rename file " .. filename .. " : ", path .. filename})
+    local new_path = input({"Rename file " .. filename .. ": ", path .. filename})
+    clear_prompt()
     rename(path .. filename, new_path)
     refresh_git()
     refresh_tree()