[erlang-questions] rebar3 tar and endless loop

[Alexander Petrovsky]

Hi!

I try to prepare erlang release, with follow config:

{relx, [
>     {release, {x, "0.0.1"},
>          [x,
>           sasl]},
>     {overlay, [
>          {copy, "priv/*", "priv/"}
>     ...
> ./rebar3 release


But, relx doesn't support wildcard. I'm try the follow config:

    ...
>          {copy, "priv/", "priv/"}
>     ...
> ./rebar3 release


Unfortunately, the result will be *priv/priv*. But when I do:

    ...
>          {copy, "priv/", "./"}
>     ...
> ./rebar3 release


Everything goes without problems. But, when I'm try to make tarball from
that here problems come: the *./rebar3 tar* goes to endless loop
continuously add *x-0.0.1.tar.gz* to himself.

The *./rebar3 tar* keep archive tar.gz file in the same directory with
generated erlang release files. So, when rebar3 sees mappings like {copy,
"priv/", "./"} it's transforms them into something like

[{"./",           "/Users/juise/Documents/x/_build/default/rel/x"},
>  {"log/sasl", "/Users/juise/Documents/x/_build/default/rel/x/log/sasl"}]


which cause endless loop.

I see multiple solutions:
- ./rebar3 tar must archive all files in release directory, and not pay
attention to overlay directive;
- relx should ignore mappings like {"./",
"/Users/juise/Documents/x/_build/default/rel/x"};
- erl_tar should explicitly ignore result archive and don't add to himself.

-- 
Петровский Александр / Alexander Petrovsky,

Skype: askjuise
Phone: +7 931 9877991
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