[erlang-questions] Environment variables in applications

[Alexander Lamb]

Ok, I have the env entry twice, but even removing the empty one, I now  
get the environment variables "dir" and "core_dir" in my program, but  
mnesia does not seem to take them into account.

Alex

Le 2 juil. 08 à 17:41, Alexander Lamb a écrit :

> Hello,
>
> I am writing an OTP application which will create a Mnesia database if
> needed (will check upon init if schema exists on that node).
>
> Since I can't give a path in the mnesia:create_schema(node())
> function, from the documentation I read that it takes the environment
> variable "dir" so I hoped I could pass it in my application file such
> as this:
>
> {application,cs_foundations,
> 	[
> 		{description, "Foundations for handling roles and studies"},
> 		{vsn,"1.0.0"},
> 		{modules, [sasl,cs_guuid,cs_mnesia]},
> 		{registered, [cs_guuid,cs_mnesia,cs_foundations_sup]},
> 		{applications, [kernel,stdlib,sasl]},
> 		{env,[]},
> 		{mod, {cs_foundations_app,[]}},
> 		{start_phases, []},
> 		{env, [{core_dir, "/Users/alamb/Data/Mnesia"},{dir, "/Users/alamb/
> Data/Mnesia"}]}
> 	]
> }.
>
> Unfortunately, it doesn't seem to work. Any workaround?
>
> Thanks,
>
> Alex
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