rebar3_protobuffs_plugin

rebar3 protobuffs compiler.

This is a conversion of the rebar2 rebar_protobuffs_compiler.erl module (https://github.com/rebar/rebar/blob/master/src/rebar_protobuffs_compiler.erl) into a rebar3 plugin. The plugin was primarily developed to compile the Erlang Riak Client, which uses riak_pb which needs a protobuffer compiler.

The plugin compiles proto files using the erlang protobuffs compiler (https://github.com/basho/erlang_protobuffs.git).

Use

Add the plugin to your rebar config:

{plugins, [
    { rebar3_protobuffs_plugin, {git, "git://github.com/cmkarlsson/rebar3_protobuffs_plugin", {tag, "0.1.2"}}}
]}.

Compile proto files using the plugin directly:

$ rebar3 protobuffs compile
===> Fetching rebar3_protobuffs_plugin
===> Compiling rebar3_protobuffs_plugin
<Plugin Output>

Clean beam and generated hrl files using the plugin directly:

$ rebar3 protobuffs clean

You may want to add a provider_hook to your rebar config to automatically compile proto files before any other code:

{provider_hooks, [{pre, [{compile, {protobuffs, compile}},
                         {clean, {protobuffs, clean}}]}]}.

Then the plugin is invoked when you run:

$ rebar3 compile

and:

$ rebar3 clean

respectively

The original use case was to build proto files with riak_pb as a dependency. This can be achieved by adding the following overrides rule to your rebar config:

{overrides, [
    {add, riak_pb, [
        {plugins, [
            { rebar3_protobuffs_plugin,
              {git, "git://github.com/cmkarlsson/rebar3_protobuffs_plugin", {tag, "0.1.2"}}
            }]
        },
        {provider_hooks, [{pre, [{compile, {protobuffs, compile}}]}]}
    ]}
]}.

Then:

$ rebar3 compile

Should use the plugin on the riak_pb application to compile the proto files before the actual compilation step.

Limitations

• The clean provider does not work when used in overrides

TODO

• Add GDP compiler
• Add tests