Upgrade Ruby to 3.2.2

.ruby-version

@@ -1 +1 @@
-2.7.6
+3.2.2

.tool-versions

@@ -0,0 +1 @@
+ruby 3.2.2

Gemfile

@@ -1,32 +1,32 @@
 source "https://rubygems.org"
 
-ruby '2.7.6'
+ruby '3.2.2'
 
 gem 'activesupport'
-gem "erector", "~> 0.10.0"
-gem "sinatra", "~> 3.0.3"
-gem "sinatra-contrib", "~> 3.0.3"
+gem "erector", github: "erector/erector"
+gem "sinatra"
+gem "sinatra-contrib"
 gem "nokogiri"
-gem "thin", "1.8.1"
+gem "thin"
 gem 'rack-codehighlighter'
 gem 'coderay'
-gem "deckrb", "~> 0.5.2"
+gem "deckrb"
 gem "sass"
 gem "redcarpet"
 gem "rubyzip"
-gem "i18n", "~> 0.7"
+gem "i18n"
 gem 'font-awesome-sass'
 gem 'bootstrap-sass'
 gem 'jquery-cdn'
 gem 'sprockets'
-gem 'ffi', "1.15.5"
-gem 'backports', "3.23.0"
+gem 'ffi'
+gem 'backports'
 
 group :development do
   gem "rspec"
   gem "rerun"
   gem "rake"
   gem "rack-test"
-  gem "files", "~> 0.3.0"
+  gem 'files', github: "alexch/files"
   gem 'rb-fsevent', :platform => :ruby
 end

Gemfile.lock

@@ -1,18 +1,38 @@
+GIT
+  remote: https://github.com/alexch/files.git
+  revision: 4938dd85ed79f421b808e8798764661a71cab5a4
+  specs:
+    files (0.4.0)
+
+GIT
+  remote: https://github.com/erector/erector.git
+  revision: 32cb38e3381889295183230caf8bf334d2f0e82a
+  specs:
+    erector (0.10.0)
+      haml
+      jeweler
+      nokogiri
+      sass
+      treetop (>= 1.2.3)
+
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.4.3)
+    activesupport (6.0.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    autoprefixer-rails (10.4.2.0)
+      zeitwerk (~> 2.2, >= 2.2.2)
+    addressable (2.4.0)
+    autoprefixer-rails (10.4.15.0)
       execjs (~> 2)
     backports (3.23.0)
     bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
       sassc (>= 2.0.0)
-    coderay (1.1.1)
+    builder (3.2.4)
+    coderay (1.1.3)
     concurrent-ruby (1.1.9)
     daemons (1.2.4)
     deckrb (0.5.2)
@@ -25,47 +45,89 @@ GEM
       redcarpet (~> 2)
       thin
       trollop
-    diff-lcs (1.3)
-    erector (0.10.0)
-      treetop (>= 1.2.3)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
+    diff-lcs (1.5.0)
     eventmachine (1.2.3)
     execjs (2.8.1)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
     ffi (1.15.5)
-    files (0.3.1)
-    font-awesome-sass (4.7.0)
-      sass (>= 3.2)
-    i18n (0.8.1)
+    font-awesome-sass (6.4.2)
+      sassc (~> 2.0)
+    git (1.11.0)
+      rchardet (~> 1.8)
+    github_api (0.16.0)
+      addressable (~> 2.4.0)
+      descendants_tracker (~> 0.0.4)
+      faraday (~> 0.8, < 0.10)
+      hashie (>= 3.4)
+      mime-types (>= 1.16, < 3.0)
+      oauth2 (~> 1.0)
+    haml (6.2.3)
+      temple (>= 0.8.2)
+      thor
+      tilt
+    hashie (5.0.0)
+    highline (2.1.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jeweler (2.3.9)
+      builder
+      bundler
+      git (>= 1.2.5)
+      github_api (~> 0.16.0)
+      highline (>= 1.6.15)
+      nokogiri (>= 1.5.10)
+      psych
+      rake
+      rdoc
+      semver2
     jquery-cdn (2.2.4)
       sprockets (>= 2)
     json (2.6.1)
-    listen (3.1.5)
+    jwt (2.7.1)
+    listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    mime-types (2.99.3)
     mini_portile2 (2.8.0)
-    minitest (5.15.0)
+    minitest (5.20.0)
     multi_json (1.15.0)
+    multi_xml (0.6.0)
+    multipart-post (2.3.0)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    nokogiri (1.13.9)
+    nokogiri (1.14.5)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
+    oauth2 (1.4.8)
+      faraday (>= 0.8, < 3.0)
+      jwt (>= 1.0, < 3.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
     polyglot (0.3.5)
-    racc (1.6.0)
+    psych (5.1.1.1)
+      stringio
+    racc (1.7.2)
     rack (2.2.4)
     rack-codehighlighter (0.6.0)
       nokogiri (>= 1.4.1)
       rack (>= 2.0.0)
-    rack-protection (3.0.3)
-      rack
+    rack-protection (3.1.0)
+      rack (~> 2.2, >= 2.2.4)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rake (12.3.3)
+    rake (13.1.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.8)
       ffi (>= 0.5.0)
+    rchardet (1.8.0)
+    rdoc (6.5.0)
+      psych (>= 4.0.0)
     redcarpet (2.3.0)
-    rerun (0.11.0)
+    rerun (0.14.0)
       listen (~> 3.0)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
@@ -81,51 +143,59 @@ GEM
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
     ruby2_keywords (0.0.5)
-    ruby_dep (1.5.0)
-    rubyzip (1.3.0)
-    sass (3.4.23)
+    rubyzip (2.3.2)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     sassc (2.4.0)
       ffi (~> 1.9)
-    sinatra (3.0.3)
+    semver2 (3.4.2)
+    sinatra (3.1.0)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.0.3)
+      rack-protection (= 3.1.0)
       tilt (~> 2.0)
-    sinatra-contrib (3.0.3)
+    sinatra-contrib (3.1.0)
       multi_json
       mustermann (~> 3.0)
-      rack-protection (= 3.0.3)
-      sinatra (= 3.0.3)
+      rack-protection (= 3.1.0)
+      sinatra (= 3.1.0)
       tilt (~> 2.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
+    stringio (3.0.8)
+    temple (0.10.3)
     thin (1.8.1)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
+    thor (1.3.0)
     thread_safe (0.3.6)
     tilt (2.0.11)
     treetop (1.6.8)
       polyglot (~> 0.3)
     trollop (2.1.2)
     tzinfo (1.2.10)
       thread_safe (~> 0.1)
+    zeitwerk (2.6.12)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   activesupport
-  backports (= 3.23.0)
+  backports
   bootstrap-sass
   coderay
-  deckrb (~> 0.5.2)
-  erector (~> 0.10.0)
-  ffi (= 1.15.5)
-  files (~> 0.3.0)
+  deckrb
+  erector!
+  ffi
+  files!
   font-awesome-sass
-  i18n (~> 0.7)
+  i18n
   jquery-cdn
   nokogiri
   rack-codehighlighter
@@ -137,13 +207,13 @@ DEPENDENCIES
   rspec
   rubyzip
   sass
-  sinatra (~> 3.0.3)
-  sinatra-contrib (~> 3.0.3)
+  sinatra
+  sinatra-contrib
   sprockets
-  thin (= 1.8.1)
+  thin
 
 RUBY VERSION
-   ruby 2.7.6p219
+   ruby 3.2.2p53
 
 BUNDLED WITH
    2.3.26

app.rb

@@ -250,7 +250,7 @@ def render_deck
 
   get "/:site/:name.zip" do
     manifest_path = "#{site_dir}/#{params[:name]}.zip-manifest"
-    if File.exists?(manifest_path)
+    if File.exist?(manifest_path)
       manifest_files = File.read(manifest_path).split("\n")
       zip_path = File.join(Dir.tmpdir, "#{params[:name]}.zip")
       FileUtils.rm_rf(zip_path)

assets/stylesheets/font_awesome.scss

@@ -1,3 +1 @@
 $fa-font-path: '/fonts/font-awesome/';
-
-@import 'font-awesome';

lib/step.rb

@@ -74,7 +74,7 @@ def insert file
   ## steps
 
   %w[
-    steps explanation overview discussion hints challenge 
+    steps explanation overview discussion hints challenge
     tools_and_references requirements
   ].each do |type|
     define_method type.to_sym do |&block|
@@ -87,7 +87,7 @@ def insert file
     end
   end
 
-  def step name = nil, options = {}
+  def step name = nil, options = {}, &block
     num = next_step_number
     a(name: "step#{current_anchor_num}")
     a(name: options[:anchor_name]) if options[:anchor_name]
@@ -98,7 +98,7 @@ def step name = nil, options = {}
               (!name.nil? ? I18n.t("general.step_title_suffix") : '')
         text name
       end
-      _render_inner_content &Proc.new if block_given?
+      _render_inner_content(&block) if block_given?
     end
   end
 
@@ -131,19 +131,19 @@ def next_step name
     end
   end
 
-  def situation name
+  def situation name, &block
     h1 name
-    _render_inner_content &Proc.new if block_given?
+    _render_inner_content(&block) if block_given?
   end
 
-  def option name
+  def option name, &block
     num = next_step_number
     a(:name => "step#{current_anchor_num}")
     h1 :class => "option" do
       span I18n.t("general.option", :num => num)
       text name
     end
-    _render_inner_content &Proc.new if block_given?
+    _render_inner_content(&block) if block_given?
   end
 
   def option_half title

spec/app_deck_spec.rb

@@ -41,4 +41,4 @@ def app
       expect(last_response.body).to include("/* Code ray css */")
     end
   end
-end
+end

spec/site_syntax_spec.rb

@@ -1,3 +1,4 @@
+require "cgi"
 require "spec_helper"
 require_relative "../app"
 
@@ -29,7 +30,7 @@ def app
 
           site.docs.each do |doc|
             it "renders #{doc.filename}" do
-              path = URI.escape "/#{site.name}/#{doc.name}"
+              path = CGI.escape "/#{site.name}/#{doc.name}"
               get path, locale: locale
               if (last_response.status != 200)
                 errors = last_response.errors