fastlane plugin flutter version spec

fastlane-plugin-flutter_version.gemspec

Gem::Specification.new do |spec|
  spec.name          = 'fastlane-plugin-flutter_version'
  spec.version       = Fastlane::FlutterVersion::VERSION
  spec.author        = 'tianhaoz95'
  spec.email         = '[email protected]'
  spec.summary       = 'A plugin to retrieve versioning information for Flutter projects.'
  spec.homepage      = "https://github.com/tianhaoz95/fastlane-plugin-flutter_version"
  spec.license       = "MIT"
  # Some other automatically generated configurations
end