`SYSTEM` variable cannot be used within functions

[kunzaatko]

Note

Perhaps this may be a mistake on my side and if so, forgive me for a fake issue.

I would like to use the system variable in functions to shorten some templating. For instance I have this function defined.

fn hostuser_match(hostname, username) {
    global::SYSTEM.hostname == hostname && global::SYSTEM.username == username
}

for conciseness in the template files and I use it in the git egg like this:

[user]
    email = martinkunz@email.cz
    name = Martin Kunz
    signingkey = FF79D9C5AB73C014 # {< if hostuser_match("TPad", "kunzaatko") >}

but this throws

Error: 
  × Error evaluating rhai
  ╰─▶ Variable not found: global::SYSTEM (line 2, position 5)
      in call to function 'hostuser_match' (line 1, position 1)
   ╭─[/home/kunzaatko/.config/yolk/eggs/git/config:4:41]
 3 │     name = Martin Kunz
 4 │     signingkey = FF79D9C5AB73C014 # {< if hostuser_match("TPad", "kunzaatko") >}
   ·                                         ┬
   ·                                         ╰── here
 5 │ [core]
   ╰────

This should work according to my understanding of docs of global in rhai.
Why doesn't it work? Is the SYSTEM table not a constant?

[elkowar]

This seems to be an issue with how we generate the SYSTEM variable into the global scope... I'll look into this!
Until then, here's an ugly hack that makes it work:

put

const SYSTEM = SYSTEM;

at the top of your configuration.
the SYSTEM variable is available at the top-level, and seemingly, rhai only adds constants to the global map that are explicitly defined in scope....