protoc_builder 0.1.1

A build script for compiling Protocol Buffers without needing to manually install protoc or the protoc_plugin.

A Dart build package to compile Protocol Buffer files to Dart source code using build_runner (i.e. the Dart build pipline) without needing to manually install the protoc compiler or the Dart Protobuf plugin protoc_plugin.

The protoc_builder package downloads the necessary Protobuf dependencies for your platform to a temporary local directory, thereby streamlining the development process.

Installation

Add the necessary dependencies to your pubspec.yaml file:

dev_dependencies:
  build_runner: <latest>
  protoc_builder: <latest>

Configuration

You must add your .proto files to a build.yaml file next to the pubspec.yaml:

targets:
  $default:
    sources:
      - $package$
      - lib/$lib$
      - proto/** # Your .proto directory

This will use the default configuration for the protoc_builder.

You may also configure custom options:

targets:
  $default:
    sources:
      - $package$
      - lib/$lib$
      - proto/**
    builders:
      protoc_builder:
        options:
          # The version of the Protobuf compiler to use.
          protobuf_version: "3.19.1" # Make sure to use quotation marks.
          # The version of the Dart protoc_plugin package to use.
          protoc_plugin_version: "20.0.0" # Make sure to use quotation marks.
          # Include paths given to the Protobuf compiler during compilation.
          proto_paths:
            - "proto/"
          # The root directory for generated Dart output files.
          out_dir: "lib/src/generated"

Running

Once everything is set up, you may simply run the build_runner package:

pub run build_runner build

The build_runner sometimes caches results longer than it should, so in some cases, it may be necessary to delete the .dart_tool/build directory.