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# frozen_string_literal: true
require_relative '../migration_schema_validator'
class SchemaValidator < MigrationSchemaValidator
ALLOW_SCHEMA_CHANGES = 'ALLOW_SCHEMA_CHANGES'
COMMIT_MESSAGE_SKIP_TAG = 'skip-db-structure-check'
def validate!
return if should_skip?
return if schema_changes.empty?
die "#{FILENAME} was changed, and no migrations were added:\n#{schema_changes}" if committed_migrations.empty?
end
private
def schema_changes
@schema_changes ||= run("git diff #{diff_target} HEAD -- #{FILENAME}")
end
def should_skip?
skip_env_present? || skip_commit_present?
end
def skip_env_present?
!ENV[ALLOW_SCHEMA_CHANGES].to_s.empty?
end
def skip_commit_present?
run("git show -s --format=%B -n 1").to_s.include?(COMMIT_MESSAGE_SKIP_TAG)
end
end
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