ruby: bump to 3.4

Ruby 2.6 has become EOL since 2022. Bump it to the latest stable
version. Also update the lockfile and dependencies.

Author: stickies-v

.ruby-version

@@ -1 +1 @@
-2.6.4
+3.4

.travis.yml

@@ -1,7 +1,7 @@
-dist: xenial
+dist: jammy
 language: ruby
 rvm:
-  - "2.6.4"
+  - "3.4"
 
 cache: bundler
 

Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Ruby runtime as a parent image
-FROM ruby:2.6.4
+FROM ruby:3.4
 
 # Install program to configure locales
 RUN apt-get update && \

Gemfile

@@ -3,11 +3,12 @@ source 'https://rubygems.org'
 ## If you update the version here, also update it in .travis.yml, .ruby-version,
 ## and README.md. Then push your branch and make sure Travis supports that
 ## version.
-ruby '2.6.4'
+ruby '~> 3.4.0'
 
 ## If you add a new Gem below, run `bundle install` to install it.
 group :development do
   gem 'jekyll'
+  gem 'logger'  # Required by Jekyll, will be removed from default gems in Ruby 3.5
   gem "minima", "~> 2.0"  ## Default Jekyll theme
   gem 'jekyll-redirect-from'
 end

Gemfile.lock

@@ -1,98 +1,158 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    Ascii85 (2.0.1)
+    addressable (2.8.8)
+      public_suffix (>= 2.0.2, < 8.0)
+    afm (1.0.0)
+    async (2.35.0)
+      console (~> 1.29)
+      fiber-annotation
+      io-event (~> 1.11)
+      metrics (~> 0.12)
+      traces (~> 0.18)
+    base64 (0.3.0)
+    benchmark (0.5.0)
+    bigdecimal (3.3.1)
+    chef-utils (18.8.54)
+      concurrent-ruby
     colorator (1.1.0)
-    concurrent-ruby (1.1.5)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.3.5)
+    console (1.34.2)
+      fiber-annotation
+      fiber-local (~> 1.1)
+      json
+    csv (3.3.5)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
-    ethon (0.12.0)
-      ffi (>= 1.3.0)
+      http_parser.rb (~> 0)
+    ethon (0.15.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
-    ffi (1.11.3)
+    ffi (1.17.2)
+    fiber-annotation (0.2.0)
+    fiber-local (1.1.0)
+      fiber-storage
+    fiber-storage (1.0.1)
     forwardable-extended (2.6.0)
-    html-proofer (3.15.0)
+    google-protobuf (4.33.1)
+      bigdecimal
+      rake (>= 13)
+    hashery (2.1.2)
+    html-proofer (5.1.1)
       addressable (~> 2.3)
-      mercenary (~> 0.3)
-      nokogumbo (~> 2.0)
-      parallel (~> 1.3)
+      async (~> 2.1)
+      benchmark (~> 0.5)
+      nokogiri (~> 1.13)
+      pdf-reader (~> 2.11)
       rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
-    http_parser.rb (0.6.0)
-    i18n (0.9.5)
+      zeitwerk (~> 2.5)
+    http_parser.rb (0.8.0)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.3)
+    io-event (1.14.2)
+    jekyll (4.4.1)
       addressable (~> 2.4)
+      base64 (~> 0.2)
       colorator (~> 1.0)
+      csv (~> 3.0)
       em-websocket (~> 0.5)
-      i18n (~> 0.7)
-      jekyll-sass-converter (~> 1.0)
+      i18n (~> 1.0)
+      jekyll-sass-converter (>= 2.0, < 4.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 1.14)
+      json (~> 2.6)
+      kramdown (~> 2.3, >= 2.3.1)
+      kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.3.3)
+      mercenary (~> 0.3, >= 0.3.6)
       pathutil (~> 0.9)
-      rouge (>= 1.7, < 4)
+      rouge (>= 3.0, < 5.0)
       safe_yaml (~> 1.0)
-    jekyll-feed (0.10.0)
-      jekyll (~> 3.3)
+      terminal-table (>= 1.8, < 4.0)
+      webrick (~> 1.7)
+    jekyll-feed (0.17.0)
+      jekyll (>= 3.7, < 5.0)
     jekyll-redirect-from (0.16.0)
       jekyll (>= 3.3, < 5.0)
-    jekyll-sass-converter (1.5.2)
-      sass (~> 3.4)
-    jekyll-seo-tag (2.4.0)
-      jekyll (~> 3.3)
-    jekyll-watch (2.0.0)
+    jekyll-sass-converter (3.1.0)
+      sass-embedded (~> 1.75)
+    jekyll-seo-tag (2.8.0)
+      jekyll (>= 3.8, < 5.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json-schema (2.8.1)
-      addressable (>= 2.4)
-    kramdown (1.17.0)
-    liquid (4.0.0)
-    listen (3.1.1)
-      rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9.7)
-    mdl (0.6.0)
-      kramdown (~> 1.12, >= 1.12.0)
-      mixlib-cli (~> 2.1, >= 2.1.1)
-      mixlib-config (~> 2.2, >= 2.2.1)
-    mercenary (0.3.6)
-    mini_portile2 (2.4.0)
-    minima (2.5.0)
-      jekyll (~> 3.5)
+    json (2.16.0)
+    json-schema (6.0.0)
+      addressable (~> 2.8)
+      bigdecimal (~> 3.1)
+    kramdown (2.5.1)
+      rexml (>= 3.3.9)
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    liquid (4.0.4)
+    listen (3.9.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.7.0)
+    mdl (0.15.0)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      mixlib-cli
+      mixlib-config
+      mixlib-shellout
+    mercenary (0.4.0)
+    metrics (0.15.0)
+    mini_portile2 (2.8.9)
+    minima (2.5.2)
+      jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    mixlib-cli (2.1.1)
-    mixlib-config (2.2.18)
+    mixlib-cli (2.1.8)
+    mixlib-config (3.0.27)
       tomlrb
-    nokogiri (1.10.7)
-      mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.2)
-      nokogiri (~> 1.8, >= 1.8.4)
-    parallel (1.19.1)
-    parslet (1.8.2)
-    pathutil (0.16.1)
+    mixlib-shellout (3.3.9)
+      chef-utils
+    nokogiri (1.18.10)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    parslet (2.0.0)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.1)
-    rainbow (3.0.0)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (3.1.1)
-    safe_yaml (1.0.4)
-    sass (3.5.6)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    toml (0.2.0)
-      parslet (~> 1.8.0)
-    tomlrb (1.2.9)
-    typhoeus (1.3.1)
-      ethon (>= 0.9.0)
-    yell (2.2.0)
+    pdf-reader (2.15.0)
+      Ascii85 (>= 1.0, < 3.0, != 2.0.0)
+      afm (>= 0.2.1, < 2)
+      hashery (~> 2.0)
+      ruby-rc4
+      ttfunk
+    public_suffix (7.0.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rake (13.3.1)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
+      ffi (~> 1.0)
+    rexml (3.4.4)
+    rouge (4.6.1)
+    ruby-rc4 (0.1.5)
+    safe_yaml (1.0.5)
+    sass-embedded (1.94.2)
+      google-protobuf (~> 4.31)
+      rake (>= 13)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
+    toml (0.3.0)
+      parslet (>= 1.8.0, < 3.0.0)
+    tomlrb (2.0.3)
+    traces (0.18.2)
+    ttfunk (1.8.0)
+      bigdecimal (~> 3.1)
+    typhoeus (1.5.0)
+      ethon (>= 0.9.0, < 0.16.0)
+    unicode-display_width (2.6.0)
+    webrick (1.9.2)
+    yell (2.2.2)
+    zeitwerk (2.7.3)
 
 PLATFORMS
   ruby
@@ -102,9 +162,10 @@ DEPENDENCIES
   jekyll
   jekyll-redirect-from
   json-schema
+  logger
   mdl
   minima (~> 2.0)
   toml
 
 RUBY VERSION
-   ruby 2.6.4p104
+   ruby 3.4.7p58

README.md

@@ -61,17 +61,17 @@ following command:
 
 **Install Ruby**
 
-To install Ruby 2.6.4, simply run this command:
+To install Ruby 3.4, simply run this command:
 
-    rvm install 2.6.4
+    rvm install 3.4
 
 Sometimes this will find a pre-compiled Ruby package for your Linux
 distribution, but sometimes it will need to compile Ruby from scratch
 (which takes about 15 minutes).
 
-After Ruby 2.6.4 is installed, make it your default Ruby:
+After Ruby 3.4 is installed, make it your default Ruby:
 
-    rvm alias create default ruby-2.6.4
+    rvm alias create default ruby-3.4
 
 And tell your system to use it: