commit, build, and publish a new version of your gem

Rakefile

namespace :gem do
  task publish: [:commit, :build, :fury]

  task :commit do
    current_branch = %x(git rev-parse --abbrev-ref HEAD).strip
    git_status = %x(git status --short --untracked-files=no)

    unless current_branch == 'master'
      puts 'Only run this task with master checked out!'
      return
    end

    if git_status.lines.any? { |f| f =~ /^\s+A/ }
      puts 'You have staged changes! Please unstage them before proceeding.'
      return
    end

    puts "Committing version #{MyProject::VERSION}..."

    %x(
      git add lib/my_project/version.rb
      git commit -m "Version #{MyProject::VERSION}"
      git push origin master
    )
  end

  task :build do
    puts %x(bundle exec gem build my_project.gemspec)
  end

  task :fury do
    puts %x(fury push my_project-#{MyProject::VERSION}.gem)
  end
end