Merge branch 'project-manager'

build-packages.sh

@@ -62,6 +62,7 @@ lite_build_package_windows () {
     local bindir="$pdir"
     local datadir="$pdir/data"
   else
+    echo "WARNING: using non portable option on unix-like system"
     local bindir="$pdir/bin"
     local datadir="$pdir/share/lite-xl"
   fi
@@ -70,6 +71,9 @@ lite_build_package_windows () {
   for module_name in core plugins colors fonts; do
     copy_directory_from_repo --strip-components=1 "data/$module_name" "$datadir"
   done
+  for module_name in plugins colors; do
+    cp -r "$build/third/data/$module_name" "$datadir"
+  done
   cp "$build/src/lite.exe" "$bindir"
   strip --strip-all "$bindir/lite.exe"
   pushd ".package-build"
@@ -100,6 +104,9 @@ lite_build_package_macosx () {
   for module_name in core plugins colors fonts; do
     copy_directory_from_repo --strip-components=1 "data/$module_name" "$datadir"
   done
+  for module_name in plugins colors; do
+    cp -r "$build/third/data/$module_name" "$datadir"
+  done
   cp "$build/src/lite" "$bindir"
   strip "$bindir/lite"
   pushd ".package-build"
@@ -119,6 +126,7 @@ lite_build_package_linux () {
   local os="linux"
   local pdir=".package-build/lite-xl"
   if [ $portable == "true" ]; then
+    echo "WARNING: using portable option on unix-like system"
     local bindir="$pdir"
     local datadir="$pdir/data"
   else
@@ -130,6 +138,9 @@ lite_build_package_linux () {
   for module_name in core plugins colors fonts; do
     copy_directory_from_repo --strip-components=1 "data/$module_name" "$datadir"
   done
+  for module_name in plugins colors; do
+    cp -r "$build/third/data/$module_name" "$datadir"
+  done
   cp "$build/src/lite" "$bindir"
   strip "$bindir/lite"
   pushd ".package-build"
@@ -154,6 +165,15 @@ lite_build_package () {
   fi
 }
 
+lite_copy_third_party_modules () {
+  local build="$1"
+  curl --insecure -L "https://github.com/rxi/lite-colors/archive/master.zip" -o "$build/rxi-lite-colors.zip"
+  mkdir -p "$build/third/data/colors" "$build/third/data/plugins"
+  unzip "$build/rxi-lite-colors.zip" -d "$build"
+  mv "$build/lite-colors-master/colors" "$build/third/data"
+  rm -fr "$build/lite-colors-master"
+}
+
 if [[ -z "$1" || -z "$2" ]]; then
   echo "usage: $0 [options] <version> <arch>"
   exit 1
@@ -184,5 +204,6 @@ if [ -z ${pgo+set} ]; then
 else
   lite_build_pgo "$portable" "$build_dir"
 fi
+lite_copy_third_party_modules "$build_dir"
 lite_build_package "$portable" "$build_dir" "$version" "$arch"
 

data/core/commands/core.lua

@@ -12,6 +12,10 @@ command.add(nil, {
     core.quit()
   end,
 
+  ["core:restart"] = function()
+    core.restart()
+  end,
+
   ["core:force-quit"] = function()
     core.quit(true)
   end,
@@ -98,7 +102,15 @@ command.add(nil, {
   end,
 
   ["core:open-user-module"] = function()
-    core.root_view:open_doc(core.open_doc(USERDIR .. "/init.lua"))
+    local user_module_doc = core.open_doc(USERDIR .. "/init.lua")
+    if not user_module_doc then return end
+    local doc_save = user_module_doc.save
+    user_module_doc.save = function(self)
+      doc_save(self)
+      core.reload_module("core.style")
+      core.load_user_directory()
+    end
+    core.root_view:open_doc(user_module_doc)
   end,
 
   ["core:open-project-module"] = function()
@@ -111,4 +123,32 @@ command.add(nil, {
       doc:save(filename)
     end
   end,
+
+  ["core:change-project-folder"] = function()
+    core.command_view:enter("Change Project Folder", function(text)
+      local path_stat = system.get_file_info(text)
+      if not path_stat or path_stat.type ~= 'dir' then
+        core.error("Cannot open folder %q", text)
+        return
+      end
+      if core.confirm_close_all() then
+        core.open_folder_project(text)
+      end
+    end, function(text)
+      return text == "" and core.recent_projects or common.dir_path_suggest(text)
+    end)
+  end,
+
+  ["core:open-project-folder"] = function()
+    core.command_view:enter("Open Project", function(text)
+      local path_stat = system.get_file_info(text)
+      if not path_stat or path_stat.type ~= 'dir' then
+        core.error("Cannot open folder %q", text)
+        return
+      end
+      system.exec(string.format("%q %q", EXEFILE, text))
+    end, function(text)
+      return text == "" and core.recent_projects or common.dir_path_suggest(text)
+    end)
+  end,
 })

data/core/common.lua

@@ -102,6 +102,21 @@ function common.path_suggest(text)
 end
 
 
+function common.dir_path_suggest(text)
+  local path, name = text:match("^(.-)([^/\\]*)$")
+  local files = system.list_dir(path == "" and "." or path) or {}
+  local res = {}
+  for _, file in ipairs(files) do
+    file = path .. file
+    local info = system.get_file_info(file)
+    if info and info.type == "dir" and file:lower():find(text:lower(), nil, true) == 1 then
+      table.insert(res, file)
+    end
+  end
+  return res
+end
+
+
 function common.match_pattern(text, pattern, ...)
   if type(pattern) == "string" then
     return text:find(pattern, ...)

data/core/docview.lua

@@ -187,8 +187,14 @@ function DocView:scroll_to_make_visible(line, col)
   self.scroll.to.y = math.max(self.scroll.to.y, max)
   local gw = self:get_gutter_width()
   local xoffset = self:get_col_x_offset(line, col)
-  local max = xoffset - self.size.x + gw + self.size.x / 5
+  local xmargin = 3 * self:get_font():get_width(' ')
-  self.scroll.to.x = math.max(0, max)
+  local xsup = xoffset + gw + xmargin
+  local xinf = xoffset - xmargin
+  if xsup > self.scroll.x + self.size.x then
+    self.scroll.to.x = xsup - self.size.x
+  elseif xinf < self.scroll.x then
+    self.scroll.to.x = math.max(0, xinf)
+  end
 end
 
 

data/core/init.lua

@@ -11,8 +11,53 @@ local Doc
 
 local core = {}
 
+local function table_serialize(t)
+  local ls = {"{"}
+  for i = 1, #t do
+    ls[#ls + 1] = string.format("  %q,", t[i])
+  end
+  ls[#ls + 1] = "}"
+  return table.concat(ls, "\n")
+end
+
+local function load_projects()
+  local ok, t = pcall(dofile, USERDIR .. "/recent_projects.lua")
+  core.recent_projects = (ok and t or {})
+end
+
+local function add_project_to_recents(dirname)
+  dirname = system.absolute_path(dirname)
+  if not dirname then return end
+  local recents = core.recent_projects
+  local n = #recents
+  for i = 1, n do
+    if dirname == recents[i] then
+      table.remove(recents, i)
+      break
+    end
+  end
+  table.insert(recents, 1, dirname)
+end
+
+local function save_projects()
+  local fp = io.open(USERDIR .. "/recent_projects.lua", "w")
+  if fp then
+    fp:write("return ", table_serialize(core.recent_projects), "\n")
+    fp:close()
+  end
+end
+
+function core.open_folder_project(dirname)
+  core.root_view:close_all_docviews()
+  add_project_to_recents(dirname)
+  save_projects()
+  core.switch_project = dirname
+  core.threads[core.project_scan_thread_id].wake = 0
+end
 
 local function project_scan_thread()
+  local priority_run = true
+
   local function diff_files(a, b)
     if #a ~= #b then return true end
     for i, v in ipairs(a) do
@@ -28,7 +73,7 @@ local function project_scan_thread()
   end
 
   local function get_files(path, t)
-    coroutine.yield()
+    if not priority_run then coroutine.yield() end
     t = t or {}
     local size_limit = config.file_size_limit * 10e5
     local all = system.list_dir(path) or {}
@@ -78,10 +123,17 @@ local function project_scan_thread()
       end
       core.project_files = t
       core.redraw = true
+      priority_run = false
     end
 
     -- wait for next scan
-    coroutine.yield(config.project_scan_rate)
+    if core.switch_project then
+      system.chdir(core.switch_project)
+      priority_run = true
+      core.switch_project = nil
+    else
+      coroutine.yield(config.project_scan_rate)
+    end
   end
 end
 
@@ -121,30 +173,54 @@ local function write_user_init_file(init_filename)
   init_file:write([[
 -- put user settings here
 -- this module will be loaded after everything else when the application starts
+-- it will be automatically reloaded when saved
 
 local keymap = require "core.keymap"
 local config = require "core.config"
 local style = require "core.style"
 
 -- light theme:
--- require "colors.summer"
+-- style.load("colors.summer")
 
 -- key binding:
 -- keymap.add { ["ctrl+escape"] = "core:quit" }
+
+-- customize fonts:
+-- style.font = renderer.font.load(DATADIR .. "/fonts/font.ttf", 14 * SCALE)
+-- style.code_font = renderer.font.load(DATADIR .. "/fonts/monospace.ttf", 13.5 * SCALE)
+--
+-- fonts used by the editor:
+-- style.font      : user interface
+-- style.big_font  : big text in welcome screen
+-- style.icon_font : icons
+-- style.code_font : code
+--
+-- the function to load the font accept a 3rd optional argument like:
+--
+-- {antialiasing="grayscale", hinting="full"}
+--
+-- possible values are:
+-- antialiasing: grayscale, subpixel
+-- hinting: none, slight, full
 ]])
   init_file:close()
 end
 
 
 
-local function load_user_directory()
+function core.load_user_directory()
-  local init_filename = USERDIR .. "/init.lua"
+  return core.try(function()
-  local info = system.get_file_info(USERDIR)
+    local stat_dir = system.get_file_info(USERDIR)
-  if not info then
+    if not stat_dir then
-    create_user_directory()
+      create_user_directory()
-    write_user_init_file(init_filename)
+    end
-  end
+    local init_filename = USERDIR .. "/init.lua"
-  return dofile(init_filename)
+    local stat_file = system.get_file_info(init_filename)
+    if not stat_file then
+      write_user_init_file(init_filename)
+    end
+    dofile(init_filename)
+  end)
 end
 
 
@@ -156,7 +232,9 @@ function core.init()
   CommandView = require "core.commandview"
   Doc = require "core.doc"
 
-  local project_dir = "."
+  load_projects()
+
+  local project_dir = core.recent_projects[1] or "."
   local files = {}
   for i = 2, #ARGS do
     local info = system.get_file_info(ARGS[i]) or {}
@@ -164,6 +242,8 @@ function core.init()
       table.insert(files, system.absolute_path(ARGS[i]))
     elseif info.type == "dir" then
       project_dir = ARGS[i]
+      add_project_to_recents(project_dir)
+      save_projects()
     end
   end
 
@@ -177,18 +257,25 @@ function core.init()
   core.project_files = {}
   core.redraw = true
   core.visited_files = {}
+  core.restart_request = false
 
   core.root_view = RootView()
   core.command_view = CommandView()
   core.status_view = StatusView()
 
+  core.root_view.root_node.is_primary_view = true
   core.root_view.root_node:split("down", core.command_view, true)
   core.root_view.root_node.b:split("down", core.status_view, true)
 
-  core.add_thread(project_scan_thread)
+  core.project_scan_thread_id = core.add_thread(project_scan_thread)
   command.add_defaults()
   local got_plugin_error = not core.load_plugins()
-  local got_user_error = not core.try(load_user_directory)
+  local got_user_error = not core.load_user_directory()
+
+  do
+    local pdir, pname = system.absolute_path(project_dir):match("(.*)[/\\\\](.*)")
+    core.log("Opening project %q from directory %q", pname, pdir)
+  end
   local got_project_error = not core.load_project_module()
 
   for _, filename in ipairs(files) do
@@ -201,6 +288,28 @@ function core.init()
 end
 
 
+function core.confirm_close_all()
+  local dirty_count = 0
+  local dirty_name
+  for _, doc in ipairs(core.docs) do
+    if doc:is_dirty() then
+      dirty_count = dirty_count + 1
+      dirty_name = doc:get_name()
+    end
+  end
+  if dirty_count > 0 then
+    local text
+    if dirty_count == 1 then
+      text = string.format("\"%s\" has unsaved changes. Quit anyway?", dirty_name)
+    else
+      text = string.format("%d docs have unsaved changes. Quit anyway?", dirty_count)
+    end
+    local confirm = system.show_confirm_dialog("Unsaved Changes", text)
+    if not confirm then return false end
+  end
+  return true
+end
+
 local temp_uid = (system.get_time() * 1000) % 0xffffffff
 local temp_file_prefix = string.format(".lite_temp_%08x", temp_uid)
 local temp_file_counter = 0
@@ -225,25 +334,16 @@ function core.quit(force)
     delete_temp_files()
     os.exit()
   end
-  local dirty_count = 0
+  if core.confirm_close_all() then
-  local dirty_name
+    core.quit(true)
-  for _, doc in ipairs(core.docs) do
-    if doc:is_dirty() then
-      dirty_count = dirty_count + 1
-      dirty_name = doc:get_name()
-    end
   end
-  if dirty_count > 0 then
+end
-    local text
+
-    if dirty_count == 1 then
+
-      text = string.format("\"%s\" has unsaved changes. Quit anyway?", dirty_name)
+function core.restart()
-    else
+  if core.confirm_close_all() then
-      text = string.format("%d docs have unsaved changes. Quit anyway?", dirty_count)
+    core.restart_request = true
-    end
-    local confirm = system.show_confirm_dialog("Unsaved Changes", text)
-    if not confirm then return end
   end
-  core.quit(true)
 end
 
 
@@ -317,6 +417,7 @@ function core.add_thread(f, weak_ref)
   local key = weak_ref or #core.threads + 1
   local fn = function() return core.try(f) end
   core.threads[key] = { cr = coroutine.create(fn), wake = 0 }
+  return key
 end
 
 
@@ -544,10 +645,12 @@ end)
 
 function core.run()
   local idle_iterations = 0
+  local frame_duration = 1 / config.fps
   while true do
     core.frame_start = system.get_time()
     local did_redraw = core.step()
     local need_more_work = run_threads()
+    if core.restart_request then break end
     if not did_redraw and not need_more_work then
       idle_iterations = idle_iterations + 1
       -- do not wait of events at idle_iterations = 1 to give a chance at core.step to run
@@ -555,16 +658,16 @@ function core.run()
       if idle_iterations > 1 then
         if system.window_has_focus() then
           -- keep running even with no events to make the cursor blinks
-          system.wait_event(1 / config.fps)
+          system.wait_event(frame_duration)
         else
           system.wait_event()
         end
       end
     else
       idle_iterations = 0
+      local elapsed = system.get_time() - core.frame_start
+      system.sleep(math.max(0, frame_duration - elapsed))
     end
-    local elapsed = system.get_time() - core.frame_start
-    system.sleep(math.max(0, 1 / config.fps - elapsed))
   end
 end
 

data/core/keymap.lua

@@ -88,6 +88,8 @@ keymap.add {
   ["ctrl+p"] = "core:find-file",
   ["ctrl+o"] = "core:open-file",
   ["ctrl+n"] = "core:new-doc",
+  ["ctrl+shift+c"] = "core:change-project-folder",
+  ["ctrl+shift+o"] = "core:open-project-folder",
   ["alt+return"] = "core:toggle-fullscreen",
 
   ["alt+shift+j"] = "root:split-left",

data/core/rootview.lua

@@ -4,6 +4,7 @@ local style = require "core.style"
 local keymap = require "core.keymap"
 local Object = require "core.object"
 local View = require "core.view"
+local CommandView = require "core.commandview"
 local DocView = require "core.docview"
 
 
@@ -18,9 +19,11 @@ local function draw_text(x, y, color)
   local lines = {
     { fmt = "%s to run a command", cmd = "core:find-command" },
     { fmt = "%s to open a file from the project", cmd = "core:find-file" },
+    { fmt = "%s to change project folder", cmd = "core:change-project-folder" },
+    { fmt = "%s to open a project folder", cmd = "core:open-project-folder" },
   }
   th = style.font:get_height()
-  y = y + (dh - th * 2 - style.padding.y) / 2
+  y = y + (dh - (th + style.padding.y) * #lines) / 2
   local w = 0
   for _, line in ipairs(lines) do
     local text = string.format(line.fmt, keymap.get_binding(line.cmd))
@@ -376,6 +379,41 @@ function Node:draw()
 end
 
 
+function Node:is_empty()
+  if self.type == "leaf" then
+    return #self.views == 0
+  else
+    return self.a:is_empty() and self.b:is_empty()
+  end
+end
+
+
+function Node:close_all_docviews()
+  if self.type == "leaf" then
+    local i = 1
+    while i <= #self.views do
+      local view = self.views[i]
+      if view:is(DocView) and not view:is(CommandView) then
+        table.remove(self.views, i)
+      else
+        i = i + 1
+      end
+    end
+    if #self.views == 0 and self.is_primary_view then
+      self:add_view(EmptyView())
+    end
+  else
+    self.a:close_all_docviews()
+    self.b:close_all_docviews()
+    if self.a:is_empty() then
+      self:consume(self.b)
+    elseif self.b:is_empty() then
+      self:consume(self.a)
+    end
+  end
+end
+
+
 
 local RootView = View:extend()
 
@@ -396,20 +434,17 @@ function RootView:get_active_node()
   return self.root_node:get_node_for_view(core.active_view)
 end
 
--- Get un unlocked node with at least one view.
+local function get_primary_view(node)
-local function get_node_unlocked(node)
+  if node.is_primary_view then
-  if not node.locked and #node.views > 0 then
     return node
   end
   if node.type ~= "leaf" then
-    local a = get_node_unlocked(node.a)
+    return get_primary_view(node.a) or get_primary_view(node.b)
-    if a then return a end
-    return get_node_unlocked(node.b)
   end
 end
 
-function RootView:get_document_view()
+function RootView:get_primary_view()
-  local node = get_node_unlocked(self.root_node)
+  local node = get_primary_view(self.root_node)
   if node then
     return node.views[1]
   end
@@ -418,8 +453,8 @@ end
 function RootView:open_doc(doc)
   local node = self:get_active_node()
   if node.locked then
-    local default_view = self:get_document_view()
+    local default_view = self:get_primary_view()
-    assert(default_view, "Cannot find an unlocked node to open the document.")
+    assert(default_view, "internal error: cannot find original document node.")
     core.set_active_view(default_view)
     node = self:get_active_node()
   end
@@ -437,6 +472,11 @@ function RootView:open_doc(doc)
 end
 
 
+function RootView:close_all_docviews()
+  self.root_node:close_all_docviews()
+end
+
+
 function RootView:on_mouse_pressed(button, x, y, clicks)
   local div = self.root_node:get_divider_overlapping_point(x, y)
   if div then

data/core/style.lua

@@ -53,4 +53,10 @@ style.syntax["string"] = { common.color "#f7c95c" }
 style.syntax["operator"] = { common.color "#93DDFA" }
 style.syntax["function"] = { common.color "#93DDFA" }
 
+
+style.load = function(module_name)
+  package.loaded[module_name] = nil
+  require(module_name)
+end
+
 return style

data/user/init.lua

@@ -1,13 +1,31 @@
 -- put user settings here
 -- this module will be loaded after everything else when the application starts
+-- it will be automatically reloaded when saved
 
 local keymap = require "core.keymap"
 local config = require "core.config"
 local style = require "core.style"
 
 -- light theme:
--- require "colors.summer"
+-- style.load("colors.summer")
 
 -- key binding:
 -- keymap.add { ["ctrl+escape"] = "core:quit" }
 
+-- customize fonts:
+-- style.font = renderer.font.load(DATADIR .. "/fonts/font.ttf", 14 * SCALE)
+-- style.code_font = renderer.font.load(DATADIR .. "/fonts/monospace.ttf", 13.5 * SCALE)
+--
+-- fonts used by the editor:
+-- style.font      : user interface
+-- style.big_font  : big text in welcome screen
+-- style.icon_font : icons
+-- style.code_font : code
+--
+-- the function to load the font accept a 3rd optional argument like:
+--
+-- {antialiasing="grayscale", hinting="full"}
+--
+-- possible values are:
+-- antialiasing: grayscale, subpixel
+-- hinting: none, slight, full

doc/usage.md

@@ -140,6 +140,13 @@ then be loaded manually as needed by using the `require` function.
 Plugins can be downloaded from the [plugins repository](https://github.com/rxi/lite-plugins).
 
 
+## Restarting the editor
+
+If you modifies the user configuration file or some of the Lua implementation files you may
+restart the editor using the command "Core: Restart".
+All the application will be restarting by keeping the window that is already used.
+
+
 ## Color Themes
 Colors themes in lite are lua modules which overwrite the color fields of lite's
 `core.style` module.

lib/font_renderer/font_renderer_alpha.h

@@ -81,20 +81,17 @@ public:
     void set_font_height(double height) {
         const double scale_x = (m_prescale_x ? 100.0 : 1.0);
         m_feng.height(height);
-        if (m_subpixel) {
+        m_feng.width(height * scale_x);
-            const int subpixel_scale = 3;
-            m_feng.width(height * scale_x * subpixel_scale);
-        } else {
-            m_feng.width(height * scale_x);
-        }
     }
 
     template<class Rasterizer, class Scanline, class RenSolid>
     void draw_codepoint(Rasterizer& ras, Scanline& sl,
         RenSolid& ren_solid, const color_type color,
-        int codepoint, double& x, double& y, int subpixel_scale)
+        int codepoint, double& x, double& y, const int subpixel_scale)
     {
         const double scale_x = (m_prescale_x ? 100.0 : 1.0);
+        // Coefficient to scale back the glyph to the final scale.
+        const double cx_inv_scale = subpixel_scale / scale_x;
 
         // Represent the delta in x scaled by scale_x.
         double x_delta = 0;
@@ -114,15 +111,15 @@ public:
                 double ty = m_hinting ? floor(y + 0.5) : y;
                 ras.reset();
                 m_mtx.reset();
-                m_mtx *= agg::trans_affine_scaling(1.0 / scale_x, 1);
+                m_mtx *= agg::trans_affine_scaling(cx_inv_scale, 1);
-                m_mtx *= agg::trans_affine_translation(start_x + x_delta / scale_x, ty);
+                m_mtx *= agg::trans_affine_translation(start_x + cx_inv_scale * x_delta, ty);
                 ras.add_path(m_trans);
                 ren_solid.color(color);
                 agg::render_scanlines(ras, sl, ren_solid);
             }
 
             y += glyph->advance_y;
-            x += (x_delta + glyph->advance_x) / scale_x;
+            x += cx_inv_scale * (x_delta + glyph->advance_x);
         }
     }
 
@@ -135,7 +132,7 @@ public:
     void render_codepoint(agg::rendering_buffer& ren_buf,
         const color_type text_color,
         double& x, double& y,
-        int codepoint, int subpixel_scale)
+        int codepoint, const int subpixel_scale)
     {
         if (!m_font_loaded) {
             return;

run-local

@@ -9,6 +9,8 @@ else
   datadir="$rundir/share/lite-xl"
 fi
 
+userdir="$(realpath "$rundir")"
+
 if [ "$#" -lt 1 ]; then
   echo "usage: $0 <build-dir>"
   exit 1
@@ -16,7 +18,7 @@ fi
 
 builddir="$1"
 rm -fr "$rundir"
-mkdir -p "$bindir" "$datadir"
+mkdir -p "$bindir" "$datadir" "$userdir"
 if [ -f "$builddir/src/lite" ]; then
   cp "$builddir/src/lite" "$bindir"
 elif [ -f "$builddir/src/lite.exe" ]; then
@@ -28,4 +30,4 @@ fi
 for module_name in core plugins colors fonts; do
   cp -r "data/$module_name" "$datadir"
 done
-exec "$bindir/lite"
+HOME="$userdir" USERPROFILE="$userdir" exec "$bindir/lite" "${@:2}"

src/main.c

@@ -89,8 +89,9 @@ int main(int argc, char **argv) {
   init_window_icon();
   ren_init(window);
 
-
+  lua_State *L;
-  lua_State *L = luaL_newstate();
+init_lua:
+  L = luaL_newstate();
   luaL_openlibs(L);
   api_load_libs(L);
 
@@ -117,7 +118,7 @@ int main(int argc, char **argv) {
   lua_setglobal(L, "EXEFILE");
 
 
-  (void) luaL_dostring(L,
+  const char *init_lite_code = \
     "local core\n"
     "xpcall(function()\n"
     "  SCALE = tonumber(os.getenv(\"LITE_SCALE\")) or SCALE\n"
@@ -153,8 +154,18 @@ int main(int argc, char **argv) {
     "    pcall(core.on_error, err)\n"
     "  end\n"
     "  os.exit(1)\n"
-    "end)");
+    "end)\n"
+    "return core and core.restart_request\n";
 
+  if (luaL_loadstring(L, init_lite_code)) {
+    fprintf(stderr, "internal error when starting the application\n");
+    exit(1);
+  }
+  lua_pcall(L, 0, 1, 0);
+  if (lua_toboolean(L, -1)) {
+    lua_close(L);
+    goto init_lua;
+  }
 
   lua_close(L);
   SDL_DestroyWindow(window);