Initial setup for AoC 2024

Generators galore!

.gitignore

@@ -11,27 +11,11 @@
 /tmp/
 
 # Used by dotenv library to load environment variables.
-# .env
+.env
 
 # Ignore Byebug command history file.
 .byebug_history
 
-## Specific to RubyMotion:
-.dat*
-.repl_history
-build/
-*.bridgesupport
-build-iPhoneOS/
-build-iPhoneSimulator/
-
-## Specific to RubyMotion (use of CocoaPods):
-#
-# We recommend against adding the Pods directory to your .gitignore. However
-# you should judge for yourself, the pros and cons are mentioned at:
-# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
-#
-# vendor/Pods/
-
 ## Documentation cache and generated files:
 /.yardoc/
 /_yardoc/
@@ -42,6 +26,7 @@ build-iPhoneSimulator/
 /.bundle/
 /vendor/bundle
 /lib/bundler/man/
+.ruby-lsp
 
 # for a library or gem, you might want to ignore these files since the code is
 # intended to run in multiple environments; otherwise, check them in:

.rspec

@@ -0,0 +1,2 @@
+--color
+--format documentation

.ruby-version

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

Gemfile

@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+ruby '3.3.4'
+
+gem 'rspec'

Gemfile.lock

@@ -0,0 +1,30 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.5.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+
+PLATFORMS
+  arm64-darwin-23
+  ruby
+
+DEPENDENCIES
+  rspec
+
+RUBY VERSION
+   ruby 3.3.4p94
+
+BUNDLED WITH
+   2.5.22

bin/aoc

@@ -0,0 +1,13 @@
+#!/usr/bin/env ruby
+
+require_relative '../lib/application'
+
+if ARGV.empty?
+  puts "Usage: bin/aoc DAY"
+  puts "Example: bin/aoc 1"
+  exit 1
+end
+
+day = ARGV[0].to_i
+AdventOfCode2024.run(day)
+

bin/generate

@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+
+require 'fileutils'
+
+def create_day(day)
+  day_str = day.to_s.rjust(2, '0')
+
+  # Create directories if they don't exist
+  FileUtils.mkdir_p('lib/solutions')
+  FileUtils.mkdir_p('lib/input')
+  FileUtils.mkdir_p('spec/solutions')
+  FileUtils.mkdir_p('spec/input')
+
+  # Copy solution template
+  solution_template = File.read('templates/day.rb')
+  File.write(
+    "lib/solutions/day_#{day_str}.rb",
+    solution_template % { day: day_str }
+  )
+
+  # Copy test template
+  test_template = File.read('templates/day_spec.rb')
+  File.write(
+    "spec/solutions/day_#{day_str}_spec.rb",
+    test_template % { day: day_str }
+  )
+
+  # Create empty input file
+  FileUtils.touch("lib/input/day_#{day_str}.txt")
+  FileUtils.touch("spec/input/day_#{day_str}_test.txt")
+
+  puts "Created files for day #{day_str}:"
+  puts "  - lib/solutions/day_#{day_str}.rb"
+  puts "  - lib/input/day_#{day_str}.txt"
+  puts "  - spec/solutions/day_#{day_str}_spec.rb"
+  puts "  - spec/input/day_#{day_str}_test.txt"
+end
+
+if ARGV.empty?
+  puts "Usage: bin/generate DAY"
+  puts "Example: bin/generate 1"
+  exit 1
+end
+
+day = ARGV[0].to_i
+create_day(day)
+

lib/application.rb

@@ -0,0 +1,24 @@
+require 'fileutils'
+
+class AdventOfCode2024
+  def self.run(day)
+    day_str = day.to_s.rjust(2, '0')
+    day_file = File.join(__dir__, 'solutions', "day_#{day_str.downcase}.rb")
+
+    begin
+      require day_file
+      solution_class = Object.const_get("Day#{day_str}")
+
+      input = File.read(
+        File.join(__dir__, 'input', "day_#{day_str}.txt")
+      ).strip
+
+      puts "Part 1: #{solution_class.new.part_one(input)}"
+      puts "Part 2: #{solution_class.new.part_two(input)}"
+    rescue LoadError
+      puts "Error: Could not find solution file for day #{day_str}"
+    rescue NameError
+      puts "Error: Could not find Day#{day_str} class in solution file"
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,14 @@
+require 'rspec/expectations'
+require_relative '../lib/application'
+
+RSpec.configure do |config|
+  config.expect_with :rspec do |expectations|
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  config.mock_with :rspec do |mocks|
+    mocks.verify_partial_doubles = true
+  end
+
+  config.shared_context_metadata_behavior = :apply_to_host_groups
+end

templates/day.rb

@@ -0,0 +1,10 @@
+class Day%{day} 
+  def part_one(input)
+    input.split("\n").map(&:to_i).sum
+  end
+
+  def part_two(input)
+    0
+  end
+end
+

templates/day_spec.rb

@@ -0,0 +1,19 @@
+require "spec_helper"
+require "solutions/day_%{day}"
+
+RSpec.describe Day%{day} do
+  let(:input) { File.read(File.join(__dir__, '..', '..', 'spec', 'input', 'day_%{day}_test.txt')).strip }
+
+  describe '#part_one' do
+    it 'calculates the correct solutions for part one' do
+      expect(subject.part_one(input)).to eq(0)
+    end
+  end
+
+  describe '#part_two' do
+    it 'calculates the correct solutions for part two' do
+      expect(subject.part_two(input)).to eq(0)
+    end
+  end
+end
+