ci: add ruby style check

Author: nguyenhuuit

.github/workflows/ruby-style.yml

@@ -0,0 +1,25 @@
+name: Ruby Style Check
+
+on:
+  push:
+    branches: [ main ]
+    # paths:
+    #  - '**/*.rb'
+
+jobs:
+  style:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.4'
+          bundler-cache: true
+      
+      - name: Install RuboCop
+        run: gem install rubocop
+      
+      - name: Run RuboCop
+        run: rubocop 

.rubocop.yml

@@ -0,0 +1,20 @@
+require:
+  - rubocop-rake
+  - rubocop-rspec
+
+AllCops:
+  NewCops: enable
+  TargetRubyVersion: 3.4
+
+Style/Documentation:
+  Enabled: false
+
+Layout/LineLength:
+  Max: 120
+
+Style/StringLiterals:
+  EnforcedStyle: single_quotes
+
+Style/FrozenStringLiteralComment:
+  Enabled: true
+  EnforcedStyle: always 

2024/day1/part1.rb

@@ -1,5 +1,5 @@
 def functional_style(input)
-  lefts, rights = input.split("\n").map {
+  lefts, rights = input.split('\n').map {
     |line| line.split('   ').map(&:to_i)
   }.transpose
 
@@ -12,13 +12,13 @@ def functional_style(input)
 end
 
 def imperative_style(input)
-  lines = input.split("\n")
+  lines = input.split('\n')
 
   lefts = []
   rights = []
 
   for line in lines
-    left, right = line.split("   ")
+    left, right = line.split('   ')
     lefts << left.to_i
     rights << right.to_i
   end
@@ -36,7 +36,7 @@ def imperative_style(input)
 def solution(input)
   functional_result = functional_style(input)
   imperative_result = imperative_style(input)
-  puts "Functional result: #{functional_result}"
-  puts "Imparative result: #{imperative_result}"
+  puts 'Functional result: #{functional_result}'
+  puts 'Imparative result: #{imperative_result}'
   return functional_result
 end

2024/day1/part2.rb

@@ -1,5 +1,5 @@
 def functional_style(input)
-  lefts, rights = input.split("\n").map { |line| line.split('   ') }.transpose
+  lefts, rights = input.split('\n').map { |line| line.split('   ') }.transpose
 
   counts = rights.tally
 
@@ -9,13 +9,13 @@ def functional_style(input)
 end
 
 def imperative_style(input)
-  lines = input.split("\n")
+  lines = input.split('\n')
 
   lefts = []
   rights = Hash.new(0)
 
   for line in lines
-    left, right = line.split("   ")
+    left, right = line.split('   ')
     lefts << left
     rights[right] += 1
   end
@@ -31,7 +31,7 @@ def imperative_style(input)
 def solution(input)
   functional_result = functional_style(input)
   imperative_result = imperative_style(input)
-  puts "Functional result: #{functional_result}"
-  puts "Imparative result: #{imperative_result}"
+  puts 'Functional result: #{functional_result}'
+  puts 'Imparative result: #{imperative_result}'
   return functional_result
 end