🥔 Spud 🥔

# Gemfile

gem 'spud'

# Spudfile

# The classic 'clean' rule
clean do
  sh 'rm -rf .byebug_history .spec_status' # `sh` issues shell commands
end

# Block args == command line args:
spec do |path = 'spec/lib/spud'|
  sh "bundle exec rspec #{path}"
end

# You can ask for ordered, optional, and named args:
greet do |name, greeting = 'Hello', comma: 'yes'|
  comma = comma == 'yes' ? ',' : ''
  puts "#{greeting}#{comma} #{name}"
end

fancy do |a, b = '2', c:, d: '4'|
  p [a, b, c, d]
end

shelly do
  sh 'echo hello'    # Prints 'echo hello', then prints the output of `$ echo hello` (like in Make)
  shh 'echo hello'   # Prints the output of `$ echo hello`
  shhh 'echo hello'  # Prints nothing

  sh! 'exit 1'  # Runs the shell command, and raises an error if it fails. Equivalents are available for shh! and shhh!

  result = shhh 'which spud'  # Returns a String-like object that also acts like a Process::Status
  puts result                 #=> '/path/to/your/spud'
  puts result.success?        #=> true
  puts result.exitstatus      #=> 0
end

styles 'src/scss/*.scss' => 'dist/css/*.css' do
  sh 'sass src/scss:dist/css'  
end

task 'call-others' do
  # All of the following invoke the task `shelly`
  shelly            # Straight up
  invoke 'shelly'   # Via a string
  invoke :shelly    # Symbols work too
  invoke! :shelly   # Will raise an error if task `shelly` fails

  # Calling tasks with arguments
  fancy 'one', c: 'three'
end

greet do |name = 'Alice'|
  puts "Hello #{name}"
end

task :greet, [:name] do |t, args|
  puts "Hello #{args.fetch(:name, 'Alice')}"
end