Upgrade Rails 7.0.8 to 8.1.2 and Ruby to 4.0.1

Rails upgrades:
- 7.0.8 -> 7.1.5 -> 7.2.2.1 -> 8.0.2 -> 8.1.2
- Updated config.load_defaults to 8.1
- Fixed Rakefile for Rails 7.1+ test runner
- Added maildown compatibility fix for Rails 7.1+
- Configured Active Job test adapter

Ruby/gem compatibility:
- Updated .ruby-version to 4.0.1
- Replaced sentry-raven with sentry-ruby + sentry-rails
- Fixed local-time asset path for v3.x
- Fixed Mocha mock for Ruby 3.x+ keyword args
- Added ostruct gem for Ruby 4.0+

CI updates:
- Use ruby-version-file to read from .ruby-version
- Add concurrency control
- Upgrade postgres to 16

Author: schneems

.github/workflows/main.yml

@@ -4,14 +4,10 @@ on: [push, pull_request]
 jobs:
   base:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby: ["3.2.9"]
-    name: Running tests with Ruby ${{ matrix.ruby }}
+    name: Tests
     services:
       postgres:
-        image: postgres:12
+        image: postgres:16
         env:
           POSTGRES_DB: triage_test
           POSTGRES_PASSWORD: password
@@ -22,12 +18,11 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
       - name: Linting
         run: |
@@ -40,4 +35,3 @@ jobs:
         run: bin/rake test
       - name: Ensure seed task still works
         run: RAILS_ENV=test bin/rails db:seed
-

.gitignore

@@ -16,7 +16,6 @@
 
 .DS_Store
 .rvmrc
-.ruby-version
 .ruby-gemset
 
 

.ruby-version

@@ -0,0 +1 @@
+4.0.1

Gemfile

@@ -7,7 +7,7 @@ git_source(:github) do |repo_name|
   "https://github.com/#{repo_name}.git"
 end
 
-ruby ">= 3.1", "< 3.3"
+ruby file: ".ruby-version"
 
 git_source :github do |name|
   "https://github.com/#{name}.git"
@@ -17,7 +17,7 @@ end
 if ENV["RAILS_MASTER"] == "1"
   gem "rails", git: "https://github.com/rails/rails.git"
 else
-  gem "rails", "7.0.8"
+  gem "rails", "8.1.2"
 end
 
 # API & Networking
@@ -91,7 +91,8 @@ gem "prawn"
 gem "rack-mini-profiler"
 gem "rails-autoscale-web"
 gem "rbtrace"
-gem "sentry-raven"
+gem "sentry-ruby"
+gem "sentry-rails"
 gem "scout_apm"
 gem "skylight"
 gem "stackprof"
@@ -103,6 +104,7 @@ gem "sitemap_generator"
 gem "aws-sdk-s3"
 
 # Utilities
+gem "ostruct" # Required for Ruby 4.0+
 gem "rake"
 gem "rrrretry"
 
@@ -119,7 +121,7 @@ end
 group :test do
   gem "capybara"
   gem "launchy" # Not essential but helpful for save_and_open_page
-  gem "minitest"
+  gem "minitest", "< 6.0" # Pin to < 6.0 for Rails 7.1 compatibility
   gem "mocha", require: false
   gem "rails-controller-testing"
   gem "simplecov", require: false
@@ -133,6 +135,7 @@ group :development, :test do
   gem "dotenv-rails"
   gem "faker", require: false
   gem "pry"
+  gem "standard", ">= 1.35.1"
   gem "standardrb", require: false
   gem "rubocop-performance"
 end