[erlang-questions] Rebar3 now in Alpha

Youngkin, Rich <>
Tue Mar 10 14:31:51 CET 2015


Very nice. Thanks to everyone for the new release and the excellent docs!

Cheers,
Rich

Hi everyone,
> Back in November (roughly 4 months ago), Tristan and I announced work on
> Rebar3 to the rebar mailing list:
>
> http://lists.basho.com/pipermail/rebar_lists.basho.com/2014-November/002087.html
> Today we're happy to announce we're in Alpha. This means that we're
> generally
> happy with the current set of features, although we're not sure about their
> stability and are still open to some changes and additions. Go to
> https://github.com/rebar/rebar3 if you're interested.
> So what's new in Rebar3 should you decide to try it with your projects?
> First of all, Rebar3 has been written with only OTP in mind. If your
> project
> isn't OTP, it's more or less gonna be unsupported. If you use OTP releases
> or
> OTP applications, it should be helpful.
> Secondly, we've added a mechanism for 'profiles', meaning your compile
> options,
> deps, release options, and so on, can all change depending on context or
> commands being run (test commands automatically include the 'test'
> profile, for
> example).We've gone from the current rebar structure adding all kinds of
> stuff in your
> top-level directory to using a single _build/ directory. In this directory,
> builds for each profile required will be included, avoiding pollution
> across
> them.
> Packages are included, but currently they're all source only until hex.pm
>  gets
> support for compiled packages. Also they contain Elixir entries until
> hex.pm
> gets filtering capability, so right now, most of them won't build either.
> Source and package dependency conflicts are handled in a deterministic
> manner,
> including when upgrading them. See
> http://www.rebar3.org/v3.0/docs/dependencies-1 for details.
> We've brought back Dialyzer as a command (and for those of you on rebar
> 2.0, Tuncer is working on bringing it back there too:
> https://github.com/rebar/rebar/pull/460).
> We've also switched from reltool to relx for our release provider, hoping a
> simpler tool will make for better release adoption:
> https://github.com/erlware/relx
> Overall, we have the following list of commands:
> http://www.rebar3.org/v3.0/docs/commands
> This is what is currently supported. For anything not there (say, reltool,
> protobuffs, and so on) we recommend you use a plugin instead. There isn't a
> huge ecosystem yet, so when you write one, let us know about it. We want to
> eventually have a plugin index to make it easy to find more tasks people
> need.
> Plugin documentation is available at
> http://www.rebar3.org/v3.0/docs/plugins
> Thanks everyone, and thanks to contributors who helped us reach the rebar3
> alpha version. Particular thanks go to Alisdair Sullivan (@talentdeficit)
> and
> James Fish (@fishcakez) for the heavy load of work they've done towards
> this
> project.
> Regards,
> Fred.
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