Refactor gem

- Add RuboCop
- Add Gemfile
- Add License
- Generate Readme
- Add tests

Ref: rails/rails#54040

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/rubocop.yml

@@ -0,0 +1,26 @@
+name: RuboCop
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: RuboCop
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.4'
+        rubygems: latest
+        bundler-cache: true
+    - name: RuboCop
+      run: bundle exec rubocop -f github

.github/workflows/ruby.yml

@@ -0,0 +1,69 @@
+name: Ruby tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Ruby tests
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        ruby-version: ['3.1', '3.2', '3.3', '3.4']
+        gemfile: [as_7.1, as_7.2, as_8.0]
+        channel: [stable]
+
+        include:
+          - ruby-version: '3.2'
+            gemfile: as_edge
+            channel: experimental
+
+          - ruby-version: '3.3'
+            gemfile: as_edge
+            channel: experimental
+
+          - ruby-version: '3.4'
+            gemfile: as_edge
+            channel: experimental
+
+          - ruby-version: 'head'
+            gemfile: as_7.1
+            channel: experimental
+          - ruby-version: 'head'
+            gemfile: as_7.2
+            channel: experimental
+          - ruby-version: 'head'
+            gemfile: as_8.0
+            channel: experimental
+          - ruby-version: 'head'
+            gemfile: as_edge
+            channel: experimental
+
+        exclude:
+          - ruby-version: '3.1'
+            gemfile: as_8.0
+
+          - ruby-version: '3.4'
+            gemfile: as_7.0
+
+    env:
+      BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
+
+    continue-on-error: ${{ matrix.channel != 'stable' }}
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true
+    - name: Run tests
+      run: bundle exec rake test

.gitignore

@@ -0,0 +1,13 @@
+.byebug_history
+/.bundle/
+/.yardoc
+/coverage/
+/doc/
+/Gemfile.lock
+/pkg/
+/spec/reports/
+/tmp/
+/_yardoc/
+Gemfile.lock
+gemfiles/*.gemfile.lock
+gemfiles/.bundle

.rubocop.yml

@@ -0,0 +1,28 @@
+require:
+  - rubocop-minitest
+  - rubocop-packaging
+  - rubocop-performance
+  - rubocop-rails
+  - rubocop-rake
+
+AllCops:
+  NewCops: enable
+  TargetRailsVersion: 7.1
+  TargetRubyVersion: 3.1
+  Exclude:
+    - .git/**/*
+    - .github/**/*
+    - bin/**/*
+    - gemfiles/**/*
+    - node_modules/**/*
+    - tmp/**/*
+    - vendor/**/*
+
+Layout/LineLength:
+  Enabled: false
+
+Style/ArgumentsForwarding:
+  Enabled: false
+
+Style/ClassAndModuleChildren:
+  Enabled: false

Appraisals

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+appraise 'as-7.1' do
+  gem 'activestorage', '~> 7.1.0'
+end
+
+appraise 'as-7.2' do
+  gem 'activestorage', '~> 7.2.0'
+end
+
+appraise 'as-8.0' do
+  gem 'activestorage', '~> 8.0.0'
+end
+
+appraise 'as-edge' do
+  gem 'actionpack', git: 'https://github.com/rails/rails.git'
+  gem 'activejob', git: 'https://github.com/rails/rails.git'
+  gem 'activerecord', git: 'https://github.com/rails/rails.git'
+  gem 'activestorage', git: 'https://github.com/rails/rails.git'
+  gem 'activesupport', git: 'https://github.com/rails/rails.git'
+end

Gemfile

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in activestorage-colore.gemspec
+gemspec
+
+gem 'appraisal'
+gem 'bundler'
+gem 'byebug'
+gem 'pry'
+gem 'rake'
+gem 'simplecov'
+gem 'webmock'
+gem 'yard'
+
+gem 'rubocop', require: false
+gem 'rubocop-minitest', require: false
+gem 'rubocop-packaging', require: false
+gem 'rubocop-performance', require: false
+gem 'rubocop-rails', require: false
+gem 'rubocop-rake', require: false

Gemfile.lock

@@ -0,0 +1,191 @@
+PATH
+  remote: .
+  specs:
+    activestorage-colore (2.0.0)
+      activestorage (>= 7.1)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionpack (8.0.1)
+      actionview (= 8.0.1)
+      activesupport (= 8.0.1)
+      nokogiri (>= 1.8.5)
+      rack (>= 2.2.4)
+      rack-session (>= 1.0.1)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+      useragent (~> 0.16)
+    actionview (8.0.1)
+      activesupport (= 8.0.1)
+      builder (~> 3.1)
+      erubi (~> 1.11)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+    activejob (8.0.1)
+      activesupport (= 8.0.1)
+      globalid (>= 0.3.6)
+    activemodel (8.0.1)
+      activesupport (= 8.0.1)
+    activerecord (8.0.1)
+      activemodel (= 8.0.1)
+      activesupport (= 8.0.1)
+      timeout (>= 0.4.0)
+    activestorage (8.0.1)
+      actionpack (= 8.0.1)
+      activejob (= 8.0.1)
+      activerecord (= 8.0.1)
+      activesupport (= 8.0.1)
+      marcel (~> 1.0)
+    activesupport (8.0.1)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.2)
+    base64 (0.2.0)
+    benchmark (0.4.0)
+    bigdecimal (3.1.9)
+    builder (3.3.0)
+    byebug (11.1.3)
+    coderay (1.1.3)
+    concurrent-ruby (1.3.4)
+    connection_pool (2.5.0)
+    crack (1.0.0)
+      bigdecimal
+      rexml
+    crass (1.0.6)
+    docile (1.4.1)
+    drb (2.2.1)
+    erubi (1.13.1)
+    globalid (1.2.1)
+      activesupport (>= 6.1)
+    hashdiff (1.1.2)
+    i18n (1.14.6)
+      concurrent-ruby (~> 1.0)
+    json (2.9.1)
+    language_server-protocol (3.17.0.3)
+    logger (1.6.5)
+    loofah (2.24.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.12.0)
+    marcel (1.0.4)
+    method_source (1.1.0)
+    mini_portile2 (2.8.8)
+    minitest (5.25.4)
+    nokogiri (1.18.1)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    parallel (1.26.3)
+    parser (3.3.6.0)
+      ast (~> 2.4.1)
+      racc
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    public_suffix (6.0.1)
+    racc (1.8.1)
+    rack (3.1.8)
+    rack-session (2.1.0)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rails-dom-testing (2.2.0)
+      activesupport (>= 5.0.0)
+      minitest
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.6.2)
+      loofah (~> 2.21)
+      nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    regexp_parser (2.10.0)
+    rexml (3.4.0)
+    rubocop (1.70.0)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.36.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.37.0)
+      parser (>= 3.3.1.0)
+    rubocop-minitest (0.36.0)
+      rubocop (>= 1.61, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-packaging (0.5.2)
+      rubocop (>= 1.33, < 2.0)
+    rubocop-performance (1.23.1)
+      rubocop (>= 1.48.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-rails (2.28.0)
+      activesupport (>= 4.2.0)
+      rack (>= 1.1)
+      rubocop (>= 1.52.0, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    ruby-progressbar (1.13.0)
+    securerandom (0.4.1)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov_json_formatter (0.1.4)
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (3.1.3)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+    uri (1.0.2)
+    useragent (0.16.11)
+    webmock (3.24.0)
+      addressable (>= 2.8.0)
+      crack (>= 0.3.2)
+      hashdiff (>= 0.4.0, < 2.0.0)
+    yard (0.9.37)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activestorage-colore!
+  appraisal
+  bundler
+  byebug
+  pry
+  rake
+  rubocop
+  rubocop-minitest
+  rubocop-packaging
+  rubocop-performance
+  rubocop-rails
+  rubocop-rake
+  simplecov
+  webmock
+  yard
+
+BUNDLED WITH
+   2.6.2