Module: Legion::CLI::ConfigScaffold

Defined in:
lib/legion/cli/config_scaffold.rb

Constant Summary collapse

SUBSYSTEMS = 
%w[transport data cache crypt logging llm chat].freeze
ENV_DETECTIONS = 
{
  'AWS_BEARER_TOKEN_BEDROCK' => { subsystem: 'llm', provider: :bedrock, field: :bearer_token },
  'ANTHROPIC_API_KEY'        => { subsystem: 'llm', provider: :anthropic, field: :api_key },
  'OPENAI_API_KEY'           => { subsystem: 'llm', provider: :openai, field: :api_key },
  'GEMINI_API_KEY'           => { subsystem: 'llm', provider: :gemini, field: :api_key },
  'VAULT_TOKEN'              => { subsystem: 'crypt', field: :token },
  'RABBITMQ_USER'            => { subsystem: 'transport', field: :user },
  'RABBITMQ_PASSWORD'        => { subsystem: 'transport', field: :password }
}.freeze

Class Method Summary collapse

Class Method Details

.apply_crypt_detections!(crypt, detections) ⇒ Object 



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# File 'lib/legion/cli/config_scaffold.rb', line 136

def apply_crypt_detections!(crypt, detections)
  vault_det = detections.find { |d| d[:field] == :token }
  return unless vault_det

  crypt[:vault][:enabled] = true
  crypt[:vault][:token] = "env://#{vault_det[:env_var]}"
end

.apply_detections!(content, subsystem, detected) ⇒ Object 



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# File 'lib/legion/cli/config_scaffold.rb', line 109

def apply_detections!(content, subsystem, detected)
  relevant = detected.select { |d| d[:subsystem] == subsystem }
  return if relevant.empty?

  case subsystem
  when 'llm'   then apply_llm_detections!(content[:llm], relevant)
  when 'crypt' then apply_crypt_detections!(content[:crypt], relevant)
  when 'transport' then apply_transport_detections!(content[:transport][:connection], relevant)
  end
end

.apply_llm_detections!(llm, detections) ⇒ Object 



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# File 'lib/legion/cli/config_scaffold.rb', line 120

def apply_llm_detections!(llm, detections)
  first_provider = nil
  detections.each do |det|
    provider = det[:provider]
    next unless provider && llm[:providers][provider]

    llm[:providers][provider][:enabled] = true
    llm[:providers][provider][det[:field]] = "env://#{det[:env_var]}" if det[:env_var]
    first_provider ||= provider
  end
  return unless first_provider

  llm[:enabled] = true
  llm[:default_provider] = first_provider.to_s
end

.apply_transport_detections!(connection, detections) ⇒ Object 



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# File 'lib/legion/cli/config_scaffold.rb', line 144

def apply_transport_detections!(connection, detections)
  detections.each do |det|
    connection[det[:field]] = "env://#{det[:env_var]}"
  end
end

.detect_environment ⇒ Object 



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# File 'lib/legion/cli/config_scaffold.rb', line 79

def detect_environment
  detected = []

  ENV_DETECTIONS.each do |env_var, meta|
    next unless ENV[env_var] && !ENV[env_var].empty?

    label = meta[:provider] ? "#{meta[:provider]} enabled (#{env_var} found)" : "#{meta[:field]} set (#{env_var} found)"
    detected << { env_var: env_var, label: label, **meta }
  end

  if ollama_running?
    detected << { subsystem: 'llm', provider: :ollama, field: :enabled, env_var: nil,
                  label: 'ollama enabled (responding on localhost:11434)' }
  end

  detected
end

.full_template(name) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/legion/cli/config_scaffold.rb', line 222

def full_template(name) # rubocop:disable Metrics/MethodLength
  case name # rubocop:disable Style/HashLikeCase
  when 'transport'
    { transport: {
      type:         'rabbitmq',
      logger_level: 'info',
      prefetch:     0,
      messages:     {
        encrypt:    false,
        ttl:        nil,
        priority:   0,
        persistent: false
      },
      exchanges:    {
        type:        'topic',
        arguments:   {},
        auto_delete: false,
        durable:     true,
        internal:    false
      },
      queues:       {
        manual_ack:  true,
        durable:     true,
        block:       false,
        auto_delete: false,
        arguments:   { 'x-queue-type': 'quorum' }
      },
      connection:   {
        host:                      '127.0.0.1',
        port:                      5672,
        user:                      'guest',
        password:                  'guest',
        vhost:                     '/',
        read_timeout:              1,
        heartbeat:                 30,
        automatically_recover:     true,
        continuation_timeout:      4000,
        network_recovery_interval: 1,
        connection_timeout:        1,
        frame_max:                 65_536,
        recovery_attempts:         100,
        logger_level:              'info'
      },
      channel:      {
        default_worker_pool_size: 1,
        session_worker_pool_size: 8
      }
    } }
  when 'data'
    { data: {
      adapter:          'sqlite',
      connect_on_start: true,
      cache:            {
        auto_enable: false,
        ttl:         60
      },
      connection:       {
        log:                 false,
        log_connection_info: false,
        log_warn_duration:   1,
        sql_log_level:       'debug',
        max_connections:     10,
        preconnect:          false
      },
      creds:            {
        database: 'legionio.db'
      },
      migrations:       {
        continue_on_fail: false,
        auto_migrate:     true
      },
      models:           {
        continue_on_load_fail: false,
        autoload:              true
      }
    } }
  when 'cache'
    { cache: {
      driver:     'dalli',
      servers:    ['127.0.0.1:11211'],
      enabled:    true,
      namespace:  'legion',
      compress:   false,
      failover:   true,
      threadsafe: true,
      expires_in: 0,
      cache_nils: false,
      pool_size:  10,
      timeout:    5
    } }
  when 'crypt'
    { crypt: {
      cluster_secret:         nil,
      cluster_secret_timeout: 5,
      dynamic_keys:           true,
      save_private_key:       true,
      read_private_key:       true,
      jwt:                    {
        enabled:           true,
        default_algorithm: 'HS256',
        default_ttl:       3600,
        issuer:            'legion',
        verify_expiration: true,
        verify_issuer:     true
      },
      vault:                  {
        enabled:             false,
        protocol:            'http',
        address:             'localhost',
        port:                8200,
        token:               nil,
        renewer_time:        5,
        renewer:             true,
        push_cluster_secret: true,
        read_cluster_secret: true,
        kv_path:             'legion'
      }
    } }
  when 'logging'
    { logging: {
      level:             'info',
      location:          'stdout',
      trace:             true,
      backtrace_logging: true
    } }
  when 'llm'
    { llm: {
      enabled:          false,
      default_provider: nil,
      default_model:    nil,
      providers:        {
        bedrock:   { enabled: false, api_key: nil, secret_key: nil, session_token: nil,
                     region: 'us-east-2', vault_path: nil },
        anthropic: { enabled: false, api_key: nil, vault_path: nil },
        openai:    { enabled: false, api_key: nil, vault_path: nil },
        gemini:    { enabled: false, api_key: nil, vault_path: nil },
        ollama:    { enabled: false, base_url: 'http://localhost:11434' }
      }
    } }
  when 'chat'
    { chat: {
      permissions:    'interactive',
      model:          nil,
      provider:       nil,
      personality:    nil,
      markdown:       true,
      incognito:      false,
      max_budget_usd: nil,
      subagent:       { max_concurrency: 3, timeout: 300 },
      headless:       { max_turns: 10 },
      notifications:  { patterns: [] }
    } }
  end
end

.minimal_template(name) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/legion/cli/config_scaffold.rb', line 150

def minimal_template(name) # rubocop:disable Metrics/MethodLength
  case name # rubocop:disable Style/HashLikeCase
  when 'transport'
    { transport: {
      connection: {
        host:     '127.0.0.1',
        port:     5672,
        user:     'guest',
        password: 'guest',
        vhost:    '/'
      }
    } }
  when 'data'
    { data: {
      adapter: 'sqlite',
      creds:   { database: 'legionio.db' }
    } }
  when 'cache'
    { cache: {
      driver:  'dalli',
      servers: ['127.0.0.1:11211'],
      enabled: true
    } }
  when 'crypt'
    { crypt: {
      vault: {
        enabled: false,
        address: 'localhost',
        port:    8200,
        token:   nil
      },
      jwt:   {
        enabled:           true,
        default_algorithm: 'HS256',
        default_ttl:       3600
      }
    } }
  when 'logging'
    { logging: {
      level:    'info',
      location: 'stdout',
      trace:    true
    } }
  when 'llm'
    { llm: {
      enabled:          false,
      default_provider: nil,
      default_model:    nil,
      providers:        {
        anthropic: { enabled: false, api_key: nil },
        openai:    { enabled: false, api_key: nil },
        gemini:    { enabled: false, api_key: nil },
        bedrock:   { enabled: false, region: 'us-east-2' },
        ollama:    { enabled: false, base_url: 'http://localhost:11434' }
      }
    } }
  when 'chat'
    { chat: {
      permissions:    'interactive',
      model:          nil,
      provider:       nil,
      personality:    nil,
      markdown:       true,
      incognito:      false,
      max_budget_usd: nil,
      subagent:       { max_concurrency: 3, timeout: 300 },
      headless:       { max_turns: 10 },
      notifications:  { patterns: [] }
    } }
  end
end

.ollama_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/cli/config_scaffold.rb', line 97

def ollama_running?
  uri = URI('http://localhost:11434/')
  http = Net::HTTP.new(uri.host, uri.port)
  http.open_timeout = 1
  http.read_timeout = 1
  response = http.get(uri.path)
  response.is_a?(Net::HTTPSuccess)
rescue StandardError => e
  Legion::Logging.debug("ConfigScaffold#ollama_running? ollama not reachable: #{e.message}") if defined?(Legion::Logging)
  false
end

.run(formatter, options) ⇒ Object

rubocop:disable Metrics/CyclomaticComplexity,Metrics/PerceivedComplexity



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# File 'lib/legion/cli/config_scaffold.rb', line 24

def run(formatter, options) # rubocop:disable Metrics/CyclomaticComplexity,Metrics/PerceivedComplexity
  dir       = options[:dir] || "#{Dir.home}/.legionio/settings"
  only      = options[:only] ? options[:only].split(',').map(&:strip) : SUBSYSTEMS
  full_mode = options[:full]
  force     = options[:force]

  invalid = only - SUBSYSTEMS
  if invalid.any?
    formatter.error("Unknown subsystem(s): #{invalid.join(', ')}. Valid: #{SUBSYSTEMS.join(', ')}")
    return 1
  end

  FileUtils.mkdir_p(dir)

  detected = detect_environment
  created = []
  skipped = []

  only.each do |name|
    path = File.join(dir, "#{name}.json")

    if File.exist?(path) && !force
      skipped << path
      next
    end

    content = full_mode ? full_template(name) : minimal_template(name)
    apply_detections!(content, name, detected)
    File.write(path, "#{::JSON.pretty_generate(content)}\n")
    created << path
  end

  if options[:json]
    formatter.json(created: created, skipped: skipped, detected: detected.map { |d| d[:label] })
  else
    if created.any?
      formatter.success("Created #{created.size} config file(s) in #{dir}/")
      created.each { |f| puts "    #{f}" }
    end
    if skipped.any?
      formatter.warn("Skipped #{skipped.size} existing file(s) (use --force to overwrite)")
      skipped.each { |f| puts "    #{f}" }
    end
    if detected.any? && created.any?
      formatter.spacer
      puts '  Auto-detected:'
      detected.each { |d| puts "    #{d[:label]}" }
    end
    formatter.spacer
    formatter.success('Edit these files then run: legion config validate') if created.any?
  end

  0
end