Module: ProtobufTranspiler

Defined in:
lib/railtie.rb,
lib/protobuf_transpiler.rb,
lib/protobuf_transpiler/version.rb

Defined Under Namespace

Classes: Railtie

Constant Summary collapse

VERSION = 
'1.2.3'

Class Method Summary collapse

Class Method Details

.annotate_stubs(path = 'app/stubs') ⇒ Object 



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# File 'lib/protobuf_transpiler.rb', line 44

def annotate_stubs path = 'app/stubs'
  require 'active_support/core_ext/string/inflections'

  Dir["#{path}/**/*.rb"]
    .map { |s| File.absolute_path s }
    .each { |f| zeitwerk_original_require f }

  stubs_modules = Dir["#{path}/*.rb"]
                    .map { |s| s.sub(path, '') }
                    .map { |s| s.sub '.rb', '' }
                    .uniq
                    .map { |c| Object.const_get c.camelize }

  stubs_modules.each do |m|
    out                       = m
                                  .constants
                                  .sort
                                  .map { |c| ignore_errors(NameError) { m.const_get c } }
                                  .filter(&:present?)
                                  .each_with_object({ messages: [], services: [] }) { |c, acc|
                                    if c.is_a? Class
                                      acc[:messages] << class_annotations(c)
                                    else
                                      acc[:services] << module_annotations(c)
                                    end
                                  }
    types_file, services_file = Dir["#{path}/#{m.name.underscore}/*.rb"]
                                  .sort_by { |s| s.scan('services').count }
    [types_file, services_file]
      .zip([out[:messages], out[:services]])
      .each { |file, content| annotate_file file, content }
  end
end

.generate_initializer(stubs_path = 'app/stubs') ⇒ Object 



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# File 'lib/protobuf_transpiler.rb', line 78

def generate_initializer stubs_path = 'app/stubs'
  file_content = ''

  if path_in_app stubs_path
    # Ignore the path in zeitwerk
    file_content += "Rails.autoloaders.main.ignore '#{stubs_path}/**/*'\n"
  end

  file_content += "Dir[\"\#{Rails.root}/#{stubs_path}/*\"].each { |f| require_relative f }\n"

  File.write "#{Rails.root}/config/initializers/protobuf_transpiler.rb", file_content
end

.generate_stubs(keep_require = false, path = 'app/stubs') ⇒ Object 



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# File 'lib/protobuf_transpiler.rb', line 10

def generate_stubs(keep_require = false, path = 'app/stubs')
  paths       = $LOAD_PATH.map { |p| "#{p}/**/public/**/*.proto" }
  proto_files = Dir[*paths].join ' '
  proto_paths = proto_files
                  .split.map { |p| p.sub %r{(?<=public).*}, '' }
                  .uniq.join ' '
  out_path    = "#{Rails.root}/#{path}/"
  FileUtils.mkdir_p out_path
  `grpc_tools_ruby_protoc --ruby_out=#{out_path} --grpc_out=#{out_path} #{proto_files} -I #{proto_paths}`

  # remove possibly useless require from stub file
  unless keep_require
    Dir["#{path}/**/*.rb"].each do |fp|
      f = File.read fp
      File.write fp, (f.sub %r{\n(require.*?'\n)+}, '')
    end
  end

  if path_in_app path
    Rails.autoloaders.main.ignore "#{path}/**/*"
  end

  # make zeitwerk happy
  Dir["#{path}/**"]
    .filter { |f| File.directory? f }
    .each { |dir|
      requires = Dir.chdir dir do
        curr_dir = Dir.pwd.split('/').last
        Dir['*.rb'].map { |s| "require_relative './#{curr_dir}/#{s.sub %r{.rb$}, ''}'" }
      end
      File.write "#{dir}.rb", requires.join("\n")
    }
end