Class: GDK::PostgresqlUpgrader

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/gdk/postgresql_upgrader.rb

Constant Summary collapse

POSTGRESQL_VERSIONS = 
%w[14 13 12 11 10 9.6].freeze

Instance Method Summary collapse

Constructor Details

#initialize(target_version = GDK::Postgresql.target_version_major) ⇒ PostgresqlUpgrader

Returns a new instance of PostgresqlUpgrader.



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# File 'lib/gdk/postgresql_upgrader.rb', line 18

def initialize(target_version = GDK::Postgresql.target_version_major)
  @target_version = target_version
end

Instance Method Details

#bin_path(version = target_version) ⇒ Object 



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# File 'lib/gdk/postgresql_upgrader.rb', line 72

def bin_path(version = target_version)
  raise "Invalid PostgreSQL version #{version}" unless available_versions.key?(version)

  available_versions[version]
end

#bin_path_or_fallback ⇒ Object 



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# File 'lib/gdk/postgresql_upgrader.rb', line 56

def bin_path_or_fallback
  dir = begin
    bin_path
  rescue StandardError
    # Fallback to whatever pg_config is in the PATH
    pg_config_discover
  end

  unless dir
    GDK::Output.warn 'Unable to determine PostgreSQL bin directory. Using fallback.'
    return nil
  end

  dir
end

#upgrade! ⇒ Object 



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# File 'lib/gdk/postgresql_upgrader.rb', line 22

def upgrade!
  check!

  success = true

  unless upgrade_needed?(target_version)
    GDK::Output.success "'#{current_data_dir}' is already compatible with PostgreSQL #{target_version}."
    return
  end

  begin
    gdk_stop
    init_db_in_target_path
    pgvector_setup
    rename_current_data_dir
    pg_upgrade
    promote_new_db
    gdk_reconfigure
    pg_replica_upgrade('replica')
    pg_replica_upgrade('replica_2')
  rescue StandardError => e
    success = false
    GDK::Output.error("An error occurred: #{e}", e)
    GDK::Output.warn 'Rolling back..'
    rename_current_data_dir_back
  end

  if success
    GDK::Output.success "Upgraded '#{current_data_dir}' from PostgreSQL #{current_version} to #{target_version}."
  else
    GDK::Output.warn "Upgrade failed. Rolled back to the original PostgreSQL #{current_version}."
  end
end