Rebar3 gpb rpc plugin

A rebar3 plugin for automatically compiling .proto files using the gpb protobuf compiler This plugin base on lrascao's rebar3_gpb_plugin1.8.2

Build

$ rebar3 compile

Use

Add the plugin to your rebar config:

{erl_opts, [{i, "./_build/default/plugins/gpb/include"}]}.

{plugins, [
    { rebar3_gpb_plugin, "1.8.2" },
    {rebar3_gpb_rpc_plugin, {git, "git://github.com/feng19/rebar3_gpb_rpc_plugin", {branch, "master"}}}
]}.

Configure gpb options (example below), full list can consulted on gpb's project page gpb_compile:file/2:

{gpb_opts, [
    {i, "path/to/proto_dir"},
    {module_name_suffix, "_pb"},
    {o_erl, "path/to/out_src"},
    {o_hrl, "path/to/out_include"},
    {strings_as_binaries, true},
    type_specs]}.

{gpb_rpc_opts, [
    {h_msg, "msg"},
    {msg_prefix, "msg_"},
    {o_erl, "src/rpc_msg"},
    {o_hrl, "include/rpc_msg"}
]}.

The i, o_erl and o_hrl option values are relative to the app's location. Default values are:

* `{i, "proto"}`
* `{o_erl, "src"}`
* `{o_hrl, "include"}`

Plugin specific options (can be used together the gpb ones):

{gpb_opts, [
    {recursive, boolean()},
    {ipath, "path/to/another/proto_dir"}
]}.

{recursive, boolean()} - look recursively through the provided folders to look for .proto files (default is true)
{ipath, "path/to/another/proto_dir"} - paths that are to be added to gpb's include path but not searched for .proto files (useful for importing .proto files from other .proto).

Add the gpb include path (environment tipically is default):

{erl_opts, [{i, "./_build/<environment>/plugins/gpb/include"}]}.

Add a hook to automatically generate modules for your protobuf files and clean them afterwards:

{provider_hooks, [
    {pre, [
        {compile, {protobuf, compile}},
        {compile, {gpb_rpc, compile}},
        {clean, {protobuf, clean}},
        {clean, {gpb_rpc, clean}}
    ]}
]}.