Rakefile

# Checks if executable exists in current path
def command?(command)
	system("command -v #{command} > /dev/null 2>&1")
end

# Default target, if no is provided
task default: [:setup]

# Steps for project environment setup
task :setup => [
	:pre_setup,
	:check_for_homebrew, 
	:update_homebrew,
	:check_for_swiftlint,
	:install_bundler_gem,
	:install_ruby_gems,
	:install_carthage,
	:install_carthage_dependencies
]

# Combines project setup with unit tests
task :setup_with_unit_test => [
	:setup,
	:unit_test
]

# Pre-setup steps
task :pre_setup do 
	puts "macOS project setup ..."
end

# Check if Homebrew is available
task :check_for_homebrew do
	puts "Checking Homebrew ..."
	if not command?('brew')
		STDERR.puts "Homebrew not found, please install it:"
		STDERR.puts "https://brew.sh/"
		exit
	end
end

# Update Homebrew
task :update_homebrew do 
	puts "Updating Homebrew ..."
	sh "brew update"
end

# Check if SwiftLint is available
task :check_for_swiftlint do
	puts "Checking SwiftLint ..."
	if not command?('swiftlint')
		STDERR.puts "SwiftLint not found. Installing now..."
		sh "brew install swiftlint"
		exit
	end
end

# Install Bundler Gem
task :install_bundler_gem do 
	if not command?('bundle')
		sh "gem install bundler -v '~> 1.16'"
	else
		sh "gem update bundler '~> 1.16'"
	end
end

# Install Ruby Gems
task :install_ruby_gems do
	sh "bundle install"
end

# Install Carthage
task :install_carthage do 
   sh "brew unlink carthage || true"
	sh "brew install carthage"
	sh "brew link --overwrite carthage"
end


# Install Carthage dependencies
task :install_carthage_dependencies do
    sh "carthage update --no-use-binaries --platform osx --cache-builds"
end

# Run SwiftLint
task :lint do
  sh 'swiftlint'
end

# Run fastlane unit tests
task :unit_test do 
	sh "fastlane test"
end