Changed check_min_api_version() to print error messages and throw an error if the minimum api is not satisfied. Updated the scripts to reflect the changed check_min_api_version().

examples/gettextExample.lua

@@ -56,10 +56,7 @@ local dt = require "darktable"
 local du = require "lib/dtutils"
 
 --check API version
-if not du.check_min_api_version("3.0.0") then
-  dt.print("ERROR:gettextExample failed to load.  Lua API version 3.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("3.0.0", "gettextExample")
 
 -- Not translated Text
 dt.print_error("Hello World!")

examples/hello_world.lua

@@ -29,10 +29,7 @@ USAGE
 local dt = require "darktable"
 local du = require "lib/dtutils"
 
-if not du.check_min_api_version("2.0.0") then
-  dt.print("ERROR:hello_world failed to load.  Lua API version 2.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("2.0.0", "hello_world") 
 
 dt.print("hello, world")
 

examples/moduleExample.lua

@@ -33,10 +33,7 @@ https://www.darktable.org/lua-api/index.html.php#darktable_new_widget
 local dt = require "darktable"
 local du = require "lib/dtutils"
 
-if not du.check_min_api_version("3.0.0") then
-  dt.print("ERROR:moduleExample failed to load.  Lua API version 3.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("3.0.0", "moduleExample") 
 
 -- add a new lib
 local check_button = dt.new_widget("check_button"){label = "MyCheck_button", value = true}

examples/multi_os.lua

@@ -86,10 +86,7 @@ end
     screen stating that you couldn't load because the minimum api version wasn't met.
 ]]
 
-if not du.check_min_api_version("5.0.0") then
-  dt.print("ERROR:mulit_os failed to load:  Lua API version 5.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("5.0.0", "multi_os") 
 
 --[[
     copy_image_attributes is a local subroutine to copy image attributes in the database from the raw image

examples/preferenceExamples.lua

@@ -24,10 +24,7 @@ USAGE
 local dt = require "darktable"
 local du = require "lib/dtutils"
 
-if not du.check_min_api_version("2.0.1") then
-  dt.print("ERROR:preferenceExamples failed to load.  Lua API version 2.0.1 or greater required.")
-  return
-end
+du.check_min_api_version("2.0.1", "preferenceExamples") 
 
 dt.preferences.register("preferenceExamples",        -- script: This is a string used to avoid name collision in preferences (i.e namespace). Set it to something unique, usually the name of the script handling the preference.
                         "preferenceExamplesString",  -- name

examples/printExamples.lua

@@ -22,10 +22,7 @@ USAGE
 local dt = require "darktable"
 local du = require "lib/dtutils"
 
-if not du.check_min_api_version("5.0.0") then
-  dt.print("ERROR:printExamples failed to load.  Lua API version 5.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("5.0.0", "printExamples") 
 
 -- Will print a string to the darktable control log (the long
 -- overlayed window that appears over the main panel).

examples/running_os.lua

@@ -28,10 +28,7 @@ prints the operating system
 local dt = require "darktable"
 local du = require "lib/dtutils"
 
-if not du.check_min_api_version("5.0.0") then
-  dt.print("ERROR:running_os not loaded.  Lua API version 5.0.0 or greater required.")
-  return
-end
+du.check_min_api_version("5.0.0", "running_os") 
 
 dt.print("You are running: "..dt.configuration.running_os)