Copy & adapt rake infrastructure from swiftgen projects

Rakefile

@@ -1,10 +1,50 @@
+#!/usr/bin/rake
 
-PODSPEC_FILE = 'Stencil.podspec.json'
-CHANGELOG_FILE = 'CHANGELOG.md'
-
-if ENV['BUNDLE_GEMFILE'].nil?
-  puts "\u{274C} Please use bundle exec"
+unless defined?(Bundler)
+  puts 'Please use bundle exec to run the rake command'
   exit 1
 end
 
+require 'English'
+
+## [ Constants ] ##############################################################
+
+POD_NAME = 'Stencil'
+MIN_XCODE_VERSION = 13.0
+BUILD_DIR = File.absolute_path('./.build')
+
+## [ Build Tasks ] ############################################################
+
+namespace :files do
+  desc 'Update all files containing a version'
+  task :update, [:version] do |_, args|
+    version = args[:version]
+
+    Utils.print_header "Updating files for version #{version}"
+
+    podspec = Utils.podspec(POD_NAME)
+    podspec['version'] = version
+    podspec['source']['tag'] = version
+    File.write("#{POD_NAME}.podspec.json", JSON.pretty_generate(podspec) + "\n")
+
+    replace('CHANGELOG.md', '## Master' => "\#\# #{version}")
+    replace("docs/conf.py",
+      /^version = .*/ => %Q(version = '#{version}'),
+      /^release = .*/ => %Q(release = '#{version}')
+    )
+    replace("docs/installation.rst",
+      /pod 'Stencil', '.*'/ => %Q(pod 'Stencil', '~> #{version}'),
+      /github "stencilproject\/Stencil" ~> .*/ => %Q(github "stencilproject/Stencil" ~> #{version})
+    )
+  end
+
+  def replace(file, replacements)
+    content = File.read(file)
+    replacements.each do |match, replacement|
+      content.gsub!(match, replacement)
+    end
+    File.write(file, content)
+  end
+end
+
 task :default => 'release:new'