Class: KairosMcp::Storage::Exporter

Inherits:
Object
  • Object
show all
Defined in:
lib/kairos_mcp/storage/exporter.rb

Overview

Exporter: Export data from SQLite to files

This allows:

  • Backing up SQLite data to human-readable files

  • Inspecting data without SQL commands

  • Migrating from SQLite back to file-based storage

Export structure:

export_path/
├── blockchain.json       # All blocks
├── action_log.jsonl      # Action log entries
└── knowledge_meta.json   # Knowledge metadata (content is in knowledge/*.md)

Class Method Summary collapse

Class Method Details

.export(db_path:, output_dir: nil) ⇒ Hash

Export all data from SQLite to files

Parameters:

  • db_path (String) —

    Path to SQLite database

  • output_dir (String) (defaults to: nil) —

    Directory to export to

Returns:

  • (Hash) —

    Export results



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# File 'lib/kairos_mcp/storage/exporter.rb', line 30

def export(db_path:, output_dir: nil)
  output_dir ||= KairosMcp.export_dir
  require 'sqlite3'

  db = SQLite3::Database.new(db_path)
  FileUtils.mkdir_p(output_dir)

  results = {
    exported_at: Time.now.iso8601,
    db_path: db_path,
    output_dir: output_dir,
    blocks: 0,
    action_logs: 0,
    knowledge_meta: 0
  }

  # Export blocks
  results[:blocks] = export_blocks(db, output_dir)

  # Export action logs
  results[:action_logs] = export_action_logs(db, output_dir)

  # Export knowledge metadata
  results[:knowledge_meta] = export_knowledge_meta(db, output_dir)

  # Write export manifest
  write_manifest(output_dir, results)

  results
rescue LoadError => e
  { success: false, error: "SQLite not available: #{e.message}" }
rescue SQLite3::Exception => e
  { success: false, error: "Database error: #{e.message}" }
end

.export_action_log(db_path:, output_file:) ⇒ Integer

Export only action logs

Parameters:

  • db_path (String) —

    Path to SQLite database

  • output_file (String) —

    Output file path

Returns:

  • (Integer) —

    Number of entries exported



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# File 'lib/kairos_mcp/storage/exporter.rb', line 83

def export_action_log(db_path:, output_file:)
  require 'sqlite3'

  db = SQLite3::Database.new(db_path)
  FileUtils.mkdir_p(File.dirname(output_file))
  export_action_logs(db, File.dirname(output_file), File.basename(output_file))
end

.export_blockchain(db_path:, output_file:) ⇒ Integer

Export only blockchain data

Parameters:

  • db_path (String) —

    Path to SQLite database

  • output_file (String) —

    Output file path

Returns:

  • (Integer) —

    Number of blocks exported



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# File 'lib/kairos_mcp/storage/exporter.rb', line 70

def export_blockchain(db_path:, output_file:)
  require 'sqlite3'

  db = SQLite3::Database.new(db_path)
  FileUtils.mkdir_p(File.dirname(output_file))
  export_blocks(db, File.dirname(output_file), File.basename(output_file))
end