hensei-api/lib/tasks/database.rake

57 lines
2.1 KiB
Ruby

namespace :db do
desc 'Backup remote PostgreSQL database'
task :backup do
db_url = ENV.fetch('REMOTE_DB_URL') { raise 'Please set REMOTE_DB_URL' }
uri = URI.parse(db_url)
remote_host = uri.host
remote_port = uri.port
remote_user = uri.user
remote_db = uri.path.delete_prefix('/')
password = uri.password
backup_dir = File.expand_path('backups')
FileUtils.mkdir_p(backup_dir)
backup_file = File.join(backup_dir, "#{Time.now.strftime('%Y%m%d_%H%M%S')}-prod-backup.tar")
cmd = %W[
pg_dump -h #{remote_host} -p #{remote_port} -U #{remote_user} -d #{remote_db} -F t
--no-owner --exclude-extension=timescaledb --exclude-extension=timescaledb_toolkit
].join(' ')
puts "Backing up remote database to #{backup_file}..."
system({ 'PGPASSWORD' => password }, "#{cmd} > #{backup_file}")
puts 'Backup completed!'
end
desc 'Restore PostgreSQL database from backup (use CLEAN=1 to drop and recreate first)'
task :restore, [:backup_file] => [:environment] do |_, args|
local_user = ENV.fetch('LOCAL_DB_USER', 'justin')
local_db = ENV.fetch('LOCAL_DB_NAME', 'hensei_dev')
# Use the specified backup file or find the most recent one
backup_dir = File.expand_path('backups')
backup_file = args[:backup_file] || Dir.glob("#{backup_dir}/*-prod-backup.tar").max
raise 'Backup file not found. Please specify a valid backup file.' unless backup_file && File.exist?(backup_file)
if ENV['CLEAN']
puts 'Dropping and recreating database...'
ActiveRecord::Base.connection.execute(<<~SQL)
SELECT pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE datname = '#{local_db}' AND pid <> pg_backend_pid()
SQL
ActiveRecord::Base.connection.disconnect!
Rake::Task['db:drop'].invoke
Rake::Task['db:create'].invoke
end
puts "Restoring database from #{backup_file}..."
system("pg_restore --no-owner --role=#{local_user} --disable-triggers -U #{local_user} -d #{local_db} #{backup_file}")
puts 'Restore completed!'
end
desc 'Backup remote database and restore locally'
task backup_and_restore: %i[backup restore]
end