Module: Harnex::Config

Defined in:
lib/harnex/config.rb

Defined Under Namespace

Classes: RepoConfig

Constant Summary collapse

CONFIG_RELATIVE_PATH = 
File.join(".harnex", "config.json").freeze
PHASE_POLICIES = 
%w[warn reject].freeze
RETENTION_DIRS = 
%w[events output].freeze
RETENTION_FIELDS = 
%w[max_age_days max_bytes].freeze
RETENTION_ENV = 
{
  "events" => {
    "max_age_days" => "HARNEX_EVENTS_MAX_AGE_DAYS",
    "max_bytes" => "HARNEX_EVENTS_MAX_BYTES"
  },
  "output" => {
    "max_age_days" => "HARNEX_OUTPUT_MAX_AGE_DAYS",
    "max_bytes" => "HARNEX_OUTPUT_MAX_BYTES"
  }
}.freeze
DEFAULT_RETENTION_LIMITS = 
RETENTION_DIRS.to_h do |dir|
  [dir, { "max_age_days" => 45, "max_bytes" => 1_073_741_824 }]
end.freeze
ConfigError = 
Class.new(StandardError)

Class Method Summary collapse

Class Method Details

.deep_dup_retention_defaults ⇒ Object 



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# File 'lib/harnex/config.rb', line 162

def deep_dup_retention_defaults
  DEFAULT_RETENTION_LIMITS.transform_values(&:dup)
end

.load_repo(start_path) ⇒ Object 



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# File 'lib/harnex/config.rb', line 41

def load_repo(start_path)
  root = DispatchHistory.find_git_root(start_path)
  return RepoConfig.new(root: nil, path: nil, data: {}) unless root

  path = File.join(root, CONFIG_RELATIVE_PATH)
  return RepoConfig.new(root: root, path: path, data: {}) unless File.file?(path)

  parsed = JSON.parse(File.read(path))
  validate_document!(parsed, path)
  RepoConfig.new(root: root, path: path, data: parsed)
rescue JSON::ParserError => e
  raise ConfigError, "#{path}: malformed JSON: #{e.message}"
end

.parse_positive_integer!(value, label) ⇒ Object

Raises:



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# File 'lib/harnex/config.rb', line 150

def parse_positive_integer!(value, label)
  text = value.to_s.strip
  unless text.match?(/\A[0-9]+\z/)
    raise ConfigError, "#{label} must be a positive integer"
  end

  integer = Integer(text)
  raise ConfigError, "#{label} must be a positive integer" if integer <= 0

  integer
end

.retention_limits(start_path = Dir.pwd, env: ENV, config: nil) ⇒ Object 



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# File 'lib/harnex/config.rb', line 88

def retention_limits(start_path = Dir.pwd, env: ENV, config: nil)
  config ||= load_repo(start_path)
  limits = deep_dup_retention_defaults
  retention = config.retention

  if retention
    RETENTION_DIRS.each do |dir|
      next unless retention.key?(dir)

      RETENTION_FIELDS.each do |field|
        next unless retention.fetch(dir).key?(field)

        limits.fetch(dir)[field] = parse_positive_integer!(
          retention.fetch(dir).fetch(field),
          "#{config.path}: $.retention.#{dir}.#{field}"
        )
      end
    end
  end

  RETENTION_ENV.each do |dir, fields|
    fields.each do |field, name|
      next unless env.key?(name)

      limits.fetch(dir)[field] = parse_positive_integer!(
        env.fetch(name),
        name
      )
    end
  end

  limits
end

.validate_document!(document, path) ⇒ Object 



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# File 'lib/harnex/config.rb', line 55

def validate_document!(document, path)
  unless document.is_a?(Hash)
    raise ConfigError, "#{path}: config must be a JSON object"
  end

  validate_phase!(document["phase"], path) if document.key?("phase")
  validate_retention!(document["retention"], path) if document.key?("retention")
end

.validate_phase!(phase, path) ⇒ Object 



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# File 'lib/harnex/config.rb', line 64

def validate_phase!(phase, path)
  unless phase.is_a?(Hash)
    raise ConfigError, "#{path}: $.phase must be an object"
  end

  allowlist = phase["allowlist"]
  unless allowlist.is_a?(Array)
    raise ConfigError, "#{path}: $.phase.allowlist must be an array"
  end

  allowlist.each_with_index do |entry, index|
    next if entry.is_a?(String) && !entry.strip.empty?

    raise ConfigError,
      "#{path}: $.phase.allowlist[#{index}] must be a non-empty string"
  end

  policy = phase["policy"]
  unless PHASE_POLICIES.include?(policy)
    raise ConfigError,
      "#{path}: $.phase.policy must be one of #{PHASE_POLICIES.join(', ')}"
  end
end

.validate_retention!(retention, path) ⇒ Object 



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# File 'lib/harnex/config.rb', line 122

def validate_retention!(retention, path)
  unless retention.is_a?(Hash)
    raise ConfigError, "#{path}: $.retention must be an object"
  end

  retention.each do |dir, value|
    unless RETENTION_DIRS.include?(dir)
      raise ConfigError,
        "#{path}: $.retention.#{dir} is not supported (expected events or output)"
    end
    unless value.is_a?(Hash)
      raise ConfigError, "#{path}: $.retention.#{dir} must be an object"
    end

    value.each do |field, limit|
      unless RETENTION_FIELDS.include?(field)
        raise ConfigError,
          "#{path}: $.retention.#{dir}.#{field} is not supported"
      end

      parse_positive_integer!(
        limit,
        "#{path}: $.retention.#{dir}.#{field}"
      )
    end
  end
end