From 3a955b8e51be8a34f7d8b0cf32bc40cbd8691fab Mon Sep 17 00:00:00 2001
From: Eugene Burmakin <iamfrey@gmail.com>
Date: Sat, 31 May 2025 14:00:52 +0200
Subject: [PATCH] Introduce SolidCache

---
 Gemfile                                 |  1 +
 Gemfile.lock                            |  5 +++++
 config/cache.yml                        | 15 ++++++++++++++
 config/environments/development.rb      |  6 +++---
 config/environments/production.rb       |  4 ++--
 config/initializers/02_version_cache.rb |  8 +++++++-
 config/initializers/solid_cache.rb      | 11 ++++++++++
 db/cache_schema.rb                      | 27 +++++++++++++++++++++++++
 8 files changed, 71 insertions(+), 6 deletions(-)
 create mode 100644 config/cache.yml
 create mode 100644 config/initializers/solid_cache.rb
 create mode 100644 db/cache_schema.rb

diff --git a/Gemfile b/Gemfile
index e5fd1134..ea404a18 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,6 +44,7 @@ gem 'sprockets-rails'
 gem 'stimulus-rails'
 gem 'strong_migrations'
 gem 'solid_cable', '~> 3.0'
+gem 'solid_cache', '1.0.7'
 gem 'solid_queue', '~> 1.1'
 gem 'tailwindcss-rails'
 gem 'turbo-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index 35372631..091acecb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -457,6 +457,10 @@ GEM
       activejob (>= 7.2)
       activerecord (>= 7.2)
       railties (>= 7.2)
+    solid_cache (1.0.7)
+      activejob (>= 7.2)
+      activerecord (>= 7.2)
+      railties (>= 7.2)
     solid_queue (1.1.5)
       activejob (>= 7.1)
       activerecord (>= 7.1)
@@ -582,6 +586,7 @@ DEPENDENCIES
   sidekiq-limit_fetch
   simplecov
   solid_cable (~> 3.0)
+  solid_cache (= 1.0.7)
   solid_queue (~> 1.1)
   sprockets-rails
   stackprof
diff --git a/config/cache.yml b/config/cache.yml
new file mode 100644
index 00000000..040a2f5e
--- /dev/null
+++ b/config/cache.yml
@@ -0,0 +1,15 @@
+default: &default
+  store_options:
+    # Cap age of oldest cache entry to fulfill retention policies
+    max_age: <%= 60.days.to_i %>
+    max_size: <%= 256.megabytes %>
+    namespace: <%= Rails.env %>
+
+development:
+  <<: *default
+
+test:
+  <<: *default
+
+production:
+  <<: *default
diff --git a/config/environments/development.rb b/config/environments/development.rb
index ff49d090..1ee6dff5 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -26,18 +26,18 @@ Rails.application.configure do
 
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
+  config.cache_store = :solid_cache_store
+  config.solid_cache.connects_to = { database: { writing: :cache } }
+
   if Rails.root.join('tmp/caching-dev.txt').exist?
     config.action_controller.perform_caching = true
     config.action_controller.enable_fragment_cache_logging = true
 
-    config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
     config.public_file_server.headers = {
       'Cache-Control' => "public, max-age=#{2.days.to_i}"
     }
   else
     config.action_controller.perform_caching = false
-
-    config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
   end
 
   config.public_file_server.enabled = true
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 8b4e7dd1..aac8634c 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -73,8 +73,8 @@ Rails.application.configure do
   config.log_level = ENV.fetch('RAILS_LOG_LEVEL', 'info')
 
   # Use a different cache store in production.
-  # config.cache_store = :mem_cache_store
-  config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
+  config.cache_store = :solid_cache_store
+  config.solid_cache.connects_to = { database: { writing: :cache } }
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   config.active_job.queue_adapter = :solid_queue
diff --git a/config/initializers/02_version_cache.rb b/config/initializers/02_version_cache.rb
index c6fed3b3..bf59a9a3 100644
--- a/config/initializers/02_version_cache.rb
+++ b/config/initializers/02_version_cache.rb
@@ -1,3 +1,9 @@
 # frozen_string_literal: true
 
-Rails.cache.delete('dawarich/app-version-check')
+# Defer cache operations until after initialization to avoid SolidCache loading issues
+Rails.application.config.after_initialize do
+  # Skip cache clearing when running the Rails console
+  unless defined?(Rails::Console) || File.basename($PROGRAM_NAME) == 'rails' && ARGV.include?('console')
+    Rails.cache.delete('dawarich/app-version-check') if Rails.cache.respond_to?(:delete)
+  end
+end
diff --git a/config/initializers/solid_cache.rb b/config/initializers/solid_cache.rb
new file mode 100644
index 00000000..15f78444
--- /dev/null
+++ b/config/initializers/solid_cache.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+# Configure SolidCache
+Rails.application.config.to_prepare do
+  # Only require the entries file as it seems the Entry class is defined there
+  begin
+    require 'solid_cache/store/entries'
+  rescue LoadError => e
+    Rails.logger.warn "Could not load SolidCache: #{e.message}"
+  end
+end
diff --git a/db/cache_schema.rb b/db/cache_schema.rb
new file mode 100644
index 00000000..3cf97e44
--- /dev/null
+++ b/db/cache_schema.rb
@@ -0,0 +1,27 @@
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema[8.0].define(version: 1) do
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "pg_catalog.plpgsql"
+
+  create_table "solid_cache_entries", force: :cascade do |t|
+    t.binary "key", null: false
+    t.binary "value", null: false
+    t.datetime "created_at", null: false
+    t.bigint "key_hash", null: false
+    t.integer "byte_size", null: false
+    t.index ["byte_size"], name: "index_solid_cache_entries_on_byte_size"
+    t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
+    t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
+  end
+end