Can I run an escript app from rebar3?

Question

After creating an escript app:

$ rebar3 new escript hello

Can I run with with rebar3, instead of calling escriptize first?

I.e. something like this?

$ rebar3 run

Boarish

I don't think there is any way to do this currently. Even the generated README.md says you have to run _build/default/bin/script_name after rebar3 escriptize. – Heins

Answer 1

One solution might be to add a "run" directive to your makefile instead - this way you can call make run which does the escriptize step and runs the result.

Depending on what you really want to achieve running ./rebar3 shell might help you - I do this sometimes so I can debug portions of code just by running the required functions.

Finally you could always write a rebar plugin that extends the escriptize step ;) - never done it myself for rebar3 but has to be easier than the old rebar...

Wives

Thanks. Yes, escriptize wouldn't be the same, I was thinking something that does the equivalent to running a shell and then calling main immediately. – Boarish

There is a pre-existing rebar3 plugin that does sort of what you ask, shouldn't take much to modify it to work with escripts: github.com/tsloughter/rebar3_run – Wives