Added metadata fields to scripts that script_manager can access and

display as a tooltip.

Added script_manager integration to those scripts that didn't have it.

contrib/ext_editor.lua

@@ -75,10 +75,26 @@ local dtsys = require "lib/dtutils.system"
 local MODULE_NAME = "ext_editor"
 du.check_min_api_version("7.0.0", MODULE_NAME) 
 
+-- translation
+local gettext = dt.gettext.gettext
+
+dt.gettext.bindtextdomain("ext_editor", dt.configuration.config_dir .."/lua/locale/")
+
+local function _(msgid)
+  return gettext(msgid)
+end
+
 -- return data structure for script_manager
 
 local script_data = {}
 
+script_data.metadata = {
+  name = "ext_editor",
+  purpose = _("edit images with external editors"),
+  author = "Marco Carrarini, marco.carrarini@gmail.com",
+  help = "https://docs.darktable.org/lua/stable/lua.scripts.manual/scripts/contrib/ext_editor"
+}
+
 script_data.destroy = nil -- function to destory the script
 script_data.destroy_method = nil -- set to hide for libs since we can't destroy them commpletely yet, otherwise leave as nil
 script_data.restart = nil -- how to restart the (lib) script after it's been hidden - i.e. make it visible again
@@ -94,15 +110,6 @@ ee.event_registered = false
 ee.widgets = {}
 
 
--- translation
-local gettext = dt.gettext.gettext
-
-gettext.bindtextdomain("ext_editor", dt.configuration.config_dir .."/lua/locale/")
-
-local function _(msgid)
-  return gettext(msgid)
-end
-
 -- maximum number of external programs, can be increased to necessity
 local MAX_EDITORS = 9