Add sqlite database

.gitignore

@@ -1,2 +1,3 @@
 .ruby-lsp/
 .env
+/db/*.sqlite3*

Gemfile

@@ -15,12 +15,12 @@ gem "puma"
 gem "tilt"
 gem "erubi"
 
+# Database
+gem "sequel"
+gem "sqlite3"
+
 # Mail
 gem "mail"
 
 # Markdown
 gem "commonmarker"
-
-# Database
-gem "sequel"
-gem "sqlite3"

db/migrations/001_create_test_records.rb

@@ -0,0 +1,12 @@
+Sequel.migration do
+  up do
+    create_table(:test_records) do
+      primary_key :id
+      String :message, null: false
+    end
+  end
+
+  down do
+    drop_table(:test_records)
+  end
+end

lib/database.rb

@@ -0,0 +1,15 @@
+require "fileutils"
+require "sequel"
+
+database_path = File.expand_path(
+  ENV.fetch("DATABASE_PATH", "../db/development.sqlite3"),
+  __dir__
+)
+
+FileUtils.mkdir_p(File.dirname(database_path))
+
+DB = Sequel.sqlite(
+  database_path,
+  timeout: 5_000,
+  connect_sqls: ["PRAGMA foreign_keys = ON"]
+)

netig.rb

@@ -1,5 +1,6 @@
 require "roda"
 
+require_relative "lib/database"
 require_relative "config/mail"
 require_relative "lib/contact_form"
 require_relative "lib/contact_mailer"