How do I access environment variables in Vala?

Question

How do I access environment variables in Vala? (as above) it seems simple, but I can't find how g_getenv() is mapped into Vala.

Answer 1

The answer lies in the bindings file. Vala uses bindings (in .vapi files) for binding its constructs to the C language. In this case you can grep through glib-2.0.vapi (on my system that is in /usr/share/vala-0.10/vapi ), and you'll see that it is bound as:

unowned string? GLib.Environment.get_variable(string name)

It can be quite useful to have the location of the core VAPI files handy, because if you know the C name of a function you can just grep for it.