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/pdf_slideshow.lua

@@ -44,7 +44,7 @@ local df = require "lib/dtutils.file"
 
 local gettext = dt.gettext.gettext
 
-gettext.bindtextdomain("pdf_slideshow", dt.configuration.config_dir .."/lua/locale/")
+dt.gettext.bindtextdomain("pdf_slideshow", dt.configuration.config_dir .."/lua/locale/")
 
 local function _(msgid)
     return gettext(msgid)
@@ -61,6 +61,13 @@ du.check_min_api_version("7.0.0", "pdf_slideshow")
 
 local script_data = {}
 
+script_data.metadata = {
+  name = "pdf_slideshow",
+  purpose = _("generates a PDF slideshow (via Latex) containing all selected images one per slide"),
+  author = "Pascal Obry",
+  help = "https://docs.darktable.org/lua/stable/lua.scripts.manual/scripts/contrib/pdf_slideshow"
+}
+
 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
@@ -230,7 +237,7 @@ dt.register_storage("pdf_slideshow",_("pdf slideshow"),
       local result = dt.control.execute(command)
       if result ~= 0 then
         dt.print(_("problem running pdflatex")) -- this one is probably usefull to the user
-        error("problem running ")..command)
+        error("problem running "..command)
       end
 
       -- open the PDF