How can I see all available reltool overlay template variables?
Pergunta
I have a fairly standard OTP setup with rebar and reltool. I've setup reltool to use a vars.config to swap in overlay template variables with {overlay_vars, "files/vars.config"}.
I've noticed that variables other than what I have listed in vars.config also work as overlay template variables, the most obvious one of which is {{erts_vsn}}
.
I assume there are other built-in variables; how do I find what they are? I've combed the reltool docs and come up with nothing.
Solução
I believe that your answer is in Rebar's rebar_reltool
module.
There, you find the definition for:
- erts_vsn
- rel_vsn
- target_dir
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