Let’s start with a simple example that will print some code on the console. Create a file called luarc in Ansel’s configuration directory (usually $HOME/.config/Ansel/) and add the following line to it:
1print("Hello World !")Start Ansel and you will see the sentence “Hello World !” printed on the console. Nothing fancy but it’s a start.
At this point, there is nothing Ansel-specific in the script. We simply use Lua’s standard print function to print a string. That’s nice and all, but we can do better than that. To access the Ansel API you first need to require it and save the returned object in a variable. Once this is done you can access the Ansel API as subfields of the returned object. All of this is documented in Ansel’s Lua API reference manual.
Run the script and … nothing happens. The function Ansel.print_error is just like print but will only print the message if you have enabled lua traces by running Ansel with “Ansel -d lua” on the command line. This is the recommended way to do traces in a Ansel lua script.