90 lines
3.0 KiB
Ruby
90 lines
3.0 KiB
Ruby
# frozen_string_literal: true
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require_relative '../mastodon/snowflake'
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def each_schema_load_environment
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# If we're in development, also run this for the test environment.
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# This is a somewhat hacky way to do this, so here's why:
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# 1. We have to define this before we load the schema, or we won't
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# have a timestamp_id function when we get to it in the schema.
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# 2. db:setup calls db:schema:load_if_ruby, which calls
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# db:schema:load, which we define above as having a prerequisite
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# of this task.
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# 3. db:schema:load ends up running
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# ActiveRecord::Tasks::DatabaseTasks.load_schema_current, which
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# calls a private method `each_current_configuration`, which
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# explicitly also does the loading for the `test` environment
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# if the current environment is `development`, so we end up
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# needing to do the same, and we can't even use the same method
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# to do it.
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if Rails.env.development?
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test_conf = ActiveRecord::Base.configurations['test']
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if test_conf['database']&.present?
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ActiveRecord::Base.establish_connection(:test)
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yield
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ActiveRecord::Base.establish_connection(Rails.env.to_sym)
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end
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end
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yield
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end
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namespace :db do
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namespace :migrate do
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desc 'Setup the db or migrate depending on state of db'
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task setup: :environment do
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begin
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if ActiveRecord::Migrator.current_version.zero?
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Rake::Task['db:migrate'].invoke
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Rake::Task['db:seed'].invoke
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end
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rescue ActiveRecord::NoDatabaseError
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Rake::Task['db:setup'].invoke
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else
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Rake::Task['db:migrate'].invoke
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end
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end
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end
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task :post_migration_hook do
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at_exit do
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unless %w(C POSIX).include?(ActiveRecord::Base.connection.execute('SELECT datcollate FROM pg_database WHERE datname = current_database();').first['datcollate'])
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warn <<~WARNING
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Your database collation is susceptible to index corruption.
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(This warning does not indicate that index corruption has occured and can be ignored)
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(To learn more, visit: https://docs.joinmastodon.org/admin/troubleshooting/index-corruption/)
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WARNING
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end
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end
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end
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Rake::Task['db:migrate'].enhance(['db:post_migration_hook'])
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# Before we load the schema, define the timestamp_id function.
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# Idiomatically, we might do this in a migration, but then it
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# wouldn't end up in schema.rb, so we'd need to figure out a way to
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# get it in before doing db:setup as well. This is simpler, and
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# ensures it's always in place.
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Rake::Task['db:schema:load'].enhance ['db:define_timestamp_id']
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# After we load the schema, make sure we have sequences for each
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# table using timestamp IDs.
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Rake::Task['db:schema:load'].enhance do
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Rake::Task['db:ensure_id_sequences_exist'].invoke
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end
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task :define_timestamp_id do
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each_schema_load_environment do
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Mastodon::Snowflake.define_timestamp_id
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end
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end
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task :ensure_id_sequences_exist do
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each_schema_load_environment do
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Mastodon::Snowflake.ensure_id_sequences_exist
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end
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end
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end
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