Rakefile

require 'semver'

SWIFT = ENV['SWIFT'] || '4.1'
BUILD_SDK = ENV['BUILD_SDK'] || 'iphonesimulator11.4'
DESTINATION= ENV['DESTINATION'] || 'platform=iOS Simulator,name=iPhone 8'
EXAMPLE_PROJECT = 'SkyFloatingLabelTextField/SkyFloatingLabelTextField.xcodeproj'
EXAMPLE_SCHEMA = 'SkyFloatingLabelTextField'
VERSION_FORMAT = '%M.%m.%p%s%d'
PODSPEC = 'SkyFloatingLabelTextField.podspec'
VERBOSE= ENV['VERBOSE'] == 'true' || false

def ask(question)
  valid_input = true
  begin
    puts question
    print '> '
    input = STDIN.gets.chomp.strip
    valid_input = yield input if block_given?
    puts
  end until valid_input

  valid_input
end

def has_trunk_push
  result = `bundle exec pod trunk me`
  $?.exitstatus == 0 && result.chomp.include?('SkyFloatingLabelTextField')
end

def last_version
  %x{git describe --abbrev=0 --tags}
end

def current_branch
  %x{git rev-parse --abbrev-ref HEAD}.strip
end


task :test do
  sh "set -o pipefail && xcodebuild test -enableCodeCoverage YES -project #{EXAMPLE_PROJECT} -scheme #{EXAMPLE_SCHEMA} SWIFT_VERSION=#{SWIFT} -sdk #{BUILD_SDK} -destination \"#{DESTINATION}\" ONLY_ACTIVE_ARCH=NO | xcpretty"
end

task :lint do
  sh "bundle exec pod lib lint --swift-version=#{SWIFT} #{VERBOSE ? '--verbose' : ''}"
  sh "swiftlint"
end

task ci: [:lint, :test]

# task release: :test do
task release: :ci do
  abort red 'Must be on master branch' unless current_branch == 'master'
  abort red 'Must have push access to SKYFloatingLabelTextField on CocoaPods trunk' unless has_trunk_push

  version = SemVer.parse(last_version)
  puts "Starting new release. Previous version was #{green(version)}"
  change = ask "What semver change do you wanna make? (major, minor, patch)" do |input|
    symbolized = input.downcase.to_sym
    symbolized if [:major, :minor, :patch].include?(symbolized)
  end

  case change
  when :major
    version.major += 1
    version.minor = 0
    version.patch =0
  when :minor
    version.minor += 1
    version.patch = 0
  when :patch
    version.patch += 1
  end


  ask "New version will be #{green(version)}.\nAccept new version?(Y/n)" do |input|
    abort if input.downcase == "n"

    input.downcase == "y" || input.empty?
  end

  version_string = version.format(VERSION_FORMAT)
  puts "Updating podspec."
  contents = File.read(PODSPEC)
  contents.gsub!(/s\.version\s*=\s"\d+\.\d+\.\d+(-\w+\.\d)?"/, "s.version          = \"#{version_string}\"")
  File.open(PODSPEC, 'w') { |file| file.puts contents }

  has_changelog_entry = !(%x{cat CHANGELOG.md | grep #{version_string}}.chomp.empty?)
  abort red "No entry for version #{version_string} in CHANGELOG.md" unless has_changelog_entry

  puts "Comitting, tagging, and pushing"
  message = "[Release] Version #{version_string}"
  sh "git commit -am '#{message}'"
  sh "git tag v#{version_string} -m '#{message}'"
  sh "git push  --follow-tags"

  puts "Pushing to CocoaPods trunk."
  sh "bundle exec pod trunk push #{PODSPEC}"

  puts green("🎉 All went well. Version #{version_string} published.")
  puts yellow("Don't forget to create a Github release") # TODO: Automate
end

# Helpers
def green(string)
  "\033[0;32m#{string}\e[0m"
end

def red(string)
  "\033[0;31m#{string}\e[0m"
end

def yellow(string)
  "\033[0;33m#{string}\e[0m"
end