Bump actions/upload-artifact from 4 to 5

.dockerignore

@@ -0,0 +1,51 @@
+# See https://docs.docker.com/engine/reference/builder/#dockerignore-file for more about ignoring files.
+
+# Ignore git directory.
+/.git/
+/.gitignore
+
+# Ignore bundler config.
+/.bundle
+
+# Ignore all environment files.
+/.env*
+
+# Ignore all default key files.
+/config/master.key
+/config/credentials/*.key
+
+# Ignore all logfiles and tempfiles.
+/log/*
+/tmp/*
+!/log/.keep
+!/tmp/.keep
+
+# Ignore pidfiles, but keep the directory.
+/tmp/pids/*
+!/tmp/pids/.keep
+
+# Ignore storage (uploaded files in development and any SQLite databases).
+/storage/*
+!/storage/.keep
+/tmp/storage/*
+!/tmp/storage/.keep
+
+# Ignore assets.
+/node_modules/
+/app/assets/builds/*
+!/app/assets/builds/.keep
+/public/assets
+
+# Ignore CI service files.
+/.github
+
+# Ignore Kamal files.
+/config/deploy*.yml
+/.kamal
+
+# Ignore development files
+/.devcontainer
+
+# Ignore Docker-related files
+/.dockerignore
+/Dockerfile*

.gitattributes

@@ -5,3 +5,5 @@ db/schema.rb linguist-generated
 
 # Mark any vendored files as having been vendored.
 vendor/* linguist-vendored
+config/credentials/*.yml.enc diff=rails_credentials
+config/credentials.yml.enc diff=rails_credentials

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+- package-ecosystem: bundler
+  directory: "/"
+  schedule:
+    interval: weekly
+  open-pull-requests-limit: 10
+- package-ecosystem: github-actions
+  directory: "/"
+  schedule:
+    interval: weekly
+  open-pull-requests-limit: 10

.github/workflows/ci.yml

@@ -0,0 +1,124 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [ main ]
+
+jobs:
+  scan_ruby:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Scan for common Rails security vulnerabilities using static analysis
+        run: bin/brakeman --no-pager
+
+      - name: Scan for known security vulnerabilities in gems used
+        run: bin/bundler-audit
+
+  scan_js:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Scan for security vulnerabilities in JavaScript dependencies
+        run: bin/importmap audit
+
+  lint:
+    runs-on: ubuntu-latest
+    env:
+      RUBOCOP_CACHE_ROOT: tmp/rubocop
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Prepare RuboCop cache
+        uses: actions/cache@v4
+        env:
+          DEPENDENCIES_HASH: ${{ hashFiles('.ruby-version', '**/.rubocop.yml', '**/.rubocop_todo.yml', 'Gemfile.lock') }}
+        with:
+          path: ${{ env.RUBOCOP_CACHE_ROOT }}
+          key: rubocop-${{ runner.os }}-${{ env.DEPENDENCIES_HASH }}-${{ github.ref_name == github.event.repository.default_branch && github.run_id || 'default' }}
+          restore-keys: |
+            rubocop-${{ runner.os }}-${{ env.DEPENDENCIES_HASH }}-
+
+      - name: Lint code for consistent style
+        run: bin/rubocop -f github
+
+  test:
+    runs-on: ubuntu-latest
+
+    # services:
+    #  redis:
+    #    image: valkey/valkey:8
+    #    ports:
+    #      - 6379:6379
+    #    options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Run tests
+        env:
+          RAILS_ENV: test
+          # RAILS_MASTER_KEY: ${{ secrets.RAILS_MASTER_KEY }}
+          # REDIS_URL: redis://localhost:6379/0
+        run: bin/rails db:test:prepare test
+
+  system-test:
+    runs-on: ubuntu-latest
+
+    # services:
+    #  redis:
+    #    image: valkey/valkey:8
+    #    ports:
+    #      - 6379:6379
+    #    options: --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: Run System Tests
+        env:
+          RAILS_ENV: test
+          # RAILS_MASTER_KEY: ${{ secrets.RAILS_MASTER_KEY }}
+          # REDIS_URL: redis://localhost:6379/0
+        run: bin/rails db:test:prepare test:system
+
+      - name: Keep screenshots from failed system tests
+        uses: actions/upload-artifact@v5
+        if: failure()
+        with:
+          name: screenshots
+          path: ${{ github.workspace }}/tmp/screenshots
+          if-no-files-found: ignore

.gitignore

@@ -1,15 +1,14 @@
 # See https://help.github.com/articles/ignoring-files for more about ignoring files.
 #
-# If you find yourself ignoring temporary files generated by your text editor
-# or operating system, you probably want to add a global ignore instead:
-#   git config --global core.excludesfile '~/.gitignore_global'
+# Temporary files generated by your text editor or operating system
+# belong in git's global ignore instead:
+# `$XDG_CONFIG_HOME/git/ignore` or `~/.config/git/ignore`
 
 # Ignore bundler config.
 /.bundle
 
-# Ignore the default SQLite database.
-/db/*.sqlite3
-/db/*.sqlite3-*
+# Ignore all environment files.
+/.env*
 
 # Ignore all logfiles and tempfiles.
 /log/*
@@ -22,7 +21,7 @@
 !/tmp/pids/
 !/tmp/pids/.keep
 
-# Ignore uploaded files in development.
+# Ignore storage (uploaded files in development and any SQLite databases).
 /storage/*
 !/storage/.keep
 /tmp/storage/*
@@ -31,5 +30,6 @@
 
 /public/assets
 
-# Ignore master key for decrypting credentials and more.
-/config/master.key
+# Ignore key files for decrypting credentials and more.
+/config/*.key
+

.rubocop.yml

@@ -0,0 +1,8 @@
+# Omakase Ruby styling for Rails
+inherit_gem: { rubocop-rails-omakase: rubocop.yml }
+
+# Overwrite or add rules to create your own house style
+#
+# # Use `[a, [b, c]]` not `[ a, [ b, c ] ]`
+# Layout/SpaceInsideArrayLiteralBrackets:
+#   Enabled: false

.ruby-version

@@ -0,0 +1 @@
+your-ruby-version

Dockerfile

@@ -0,0 +1,76 @@
+# syntax=docker/dockerfile:1
+# check=error=true
+
+# This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
+# docker build -t railsdiff .
+# docker run -d -p 80:80 -e RAILS_MASTER_KEY=<value from config/master.key> --name railsdiff railsdiff
+
+# For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
+
+# Make sure RUBY_VERSION matches the Ruby version in .ruby-version
+ARG RUBY_VERSION=your-ruby-version
+FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
+
+# Rails app lives here
+WORKDIR /rails
+
+# Install base packages
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libvips sqlite3 && \
+    ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+# Set production environment variables and enable jemalloc for reduced memory usage and latency.
+ENV RAILS_ENV="production" \
+    BUNDLE_DEPLOYMENT="1" \
+    BUNDLE_PATH="/usr/local/bundle" \
+    BUNDLE_WITHOUT="development" \
+    LD_PRELOAD="/usr/local/lib/libjemalloc.so"
+
+# Throw-away build stage to reduce size of final image
+FROM base AS build
+
+# Install packages needed to build gems
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential git libyaml-dev pkg-config && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+# Install application gems
+COPY Gemfile Gemfile.lock vendor ./
+
+RUN bundle install && \
+    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
+    # -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
+    bundle exec bootsnap precompile -j 1 --gemfile
+
+# Copy application code
+COPY . .
+
+# Precompile bootsnap code for faster boot times.
+# -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
+RUN bundle exec bootsnap precompile -j 1 app/ lib/
+
+# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
+RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
+
+
+
+
+# Final stage for app image
+FROM base
+
+# Run and own only the runtime files as a non-root user for security
+RUN groupadd --system --gid 1000 rails && \
+    useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash
+USER 1000:1000
+
+# Copy built artifacts: gems, application
+COPY --chown=rails:rails --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
+COPY --chown=rails:rails --from=build /rails /rails
+
+# Entrypoint prepares the database.
+ENTRYPOINT ["/rails/bin/docker-entrypoint"]
+
+# Start server via Thruster by default, this can be overwritten at runtime
+EXPOSE 80
+CMD ["./bin/thrust", "./bin/rails", "server"]