Remove github-pages gem dependency; declare explicit gems; commit Gemfile.lock

.devcontainer/post-create.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-for cmd in curl git sed; do
+for cmd in git tr; do
   if ! command -v "${cmd}" >/dev/null 2>&1; then
     echo "${cmd} is required for .devcontainer/post-create.sh"
     exit 1
@@ -45,21 +45,17 @@ fi
 echo "Initializing/updating git submodules"
 git submodule update --init --recursive
 
-versions_json="$(curl -fsSL https://pages.github.com/versions.json)" || {
-  echo "Failed to fetch https://pages.github.com/versions.json"
+ruby_version_file=".ruby-version"
+if [[ ! -f "${ruby_version_file}" ]]; then
+  echo "Could not find ${ruby_version_file}"
   exit 1
-}
-
-pages_ruby_version="$(
-  printf '%s' "${versions_json}" |
-    sed -n 's/.*"ruby"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' |
-    head -n 1
-)"
+fi
 
-echo "GitHub Pages Ruby version: ${pages_ruby_version}"
+repo_ruby_version="$(tr -d '[:space:]' < "${ruby_version_file}")"
+echo "Repository Ruby version: ${repo_ruby_version}"
 
-if [[ -z "${pages_ruby_version}" ]]; then
-  echo "Could not determine Ruby version from https://pages.github.com/versions.json"
+if [[ -z "${repo_ruby_version}" ]]; then
+  echo "Could not determine Ruby version from ${ruby_version_file}"
   exit 1
 fi
 
@@ -75,8 +71,8 @@ fi
 export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/shims:$PATH"
 eval "$(rbenv init - bash)"
 
-rbenv install -s "${pages_ruby_version}"
-rbenv global "${pages_ruby_version}"
+rbenv install -s "${repo_ruby_version}"
+rbenv global "${repo_ruby_version}"
 rbenv rehash
 
 for profile in "$HOME/.bashrc" "$HOME/.zshrc"; do
@@ -94,4 +90,4 @@ gem install bundler --no-document
 rbenv rehash
 mkdir -p "$HOME/.local/bin"
 ln -sf "$HOME/.rbenv/shims/bundle" "$HOME/.local/bin/bundle"
-bundle install
+bundle install

.gitignore

@@ -5,7 +5,5 @@
 assets/vendor/hint.css/src
 /vendor
 /.sass-cache
-.ruby-version
 /tmp
-Gemfile.lock
 .jekyll-metadata

.ruby-version

@@ -0,0 +1 @@
+3.3.4

Gemfile

@@ -2,16 +2,17 @@
 
 source 'https://rubygems.org'
 
-require 'json'
-require 'net/http'
-versions = JSON.parse(Net::HTTP.get(URI('https://pages.github.com/versions.json')))
+gem 'jekyll', '~> 4.3'
 
-gem 'github-pages', versions['github-pages']
+# Jekyll plugins listed in _config.yml
+gem 'jekyll-github-metadata', '~> 2.16'
+gem 'jekyll-redirect-from', '~> 0.16'
+gem 'jekyll-seo-tag', '~> 2.8'
+gem 'jekyll-sitemap', '~> 1.4'
 
 # Internationalization. Not on the GitHub Pages plugin whitelist, so the site is
 # built and deployed from GitHub Actions (.github/workflows/deploy.yml) rather than
-# by the native Pages build. ~> 1.5 keeps compatibility with the Jekyll version
-# pinned by the github-pages gem.
+# by the native Pages build.
 gem 'jekyll-polyglot', '~> 1.5'
 
 # https://github.com/jekyll/jekyll/issues/8523
@@ -29,4 +30,5 @@ group :test do
   gem 'rake'
   gem 'rspec'
   gem 'rubocop'
+  gem 'safe_yaml', '~> 1.0'
 end