1 files changed, 88 insertions, 0 deletions
diff --git a/plug-ins/file-raw/file-darktable-export-on-exit.lua b/plug-ins/file-raw/file-darktable-export-on-exit.lua
new file mode 100644
index 0000000..79b27dc
--- /dev/null
+++ b/plug-ins/file-raw/file-darktable-export-on-exit.lua
@@ -0,0 +1,88 @@
+--[[
+  This file is part of GIMP,
+  copyright (c) 2015-2017 Tobias Ellinghaus
+
+  GIMP is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  GIMP is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with GIMP.  If not, see <https://www.gnu.org/licenses/>.
+]]
+
+--[[
+EXPORT ON EXIT
+exports all (but at most 1) images from the database to prefs setting "lua/export_on_exit/export_filename"
+when darktable exits
+
+
+USAGE
+* require this file from your main lua config file
+* or: use --luacmd "dofile('/path/to/this/file.lua')"
+* and make sure to set the export filename
+
+]]
+
+local dt = require "darktable"
+
+local orig_register_event = dt.register_event
+
+function dt.register_event(name, event, func, label)
+  if dt.configuration.api_version_string >= "6.2.1" then
+    if label then
+      orig_register_event(name, event, func, label)
+    else
+      orig_register_event(name, event, func)
+    end
+  else
+    if label then
+      orig_register_event(event, func, label)
+    else
+      orig_register_event(event, func)
+    end
+  end
+end
+
+local min_api_version = "2.1.0"
+if dt.configuration.api_version_string < min_api_version then
+  dt.print("the exit export script requires at least darktable version 1.7.0")
+  dt.print_error("the exit export script requires at least darktable version 1.7.0")
+  return
+else
+  dt.print("closing darktable will export the image and make GIMP load it")
+end
+
+local CURR_API_STRING = dt.configuration.api_version_string
+
+local export_filename = dt.preferences.read("export_on_exit", "export_filename", "string")
+
+dt.register_event("fileraw", "exit", function()
+  -- safegurad against someone using this with their library containing 50k images
+  if #dt.database > 1 then
+    dt.print_error("too many images, only exporting the first")
+--     return
+  end
+
+  -- change the view first to force writing of the history stack
+  dt.gui.current_view(dt.gui.views.lighttable)
+  -- now export
+  local format = dt.new_format("exr")
+  format.max_width = 0
+  format.max_height = 0
+  -- let's have the export in a loop so we could easily support > 1 images
+  for _, image in ipairs(dt.database) do
+    dt.print_error("exporting `"..tostring(image).."' to `"..export_filename.."'")
+    format:write_image(image, export_filename)
+    break -- only export one image. see above for the reason
+  end
+end)
+
+--
+-- vim: shiftwidth=2 expandtab tabstop=2 cindent syntax=lua
+-- kate: hl Lua;