Module: Clacky::ApiExtensionLoader

Defined in:
lib/clacky/api_extension_loader.rb

Overview

Discovers and loads user-defined HTTP API extensions from ~/.clacky/api_ext//handler.rb. Each handler is expected to define a subclass of Clacky::ApiExtension; the subclass is auto-registered with the framework and its routes become available under /api/ext//.

A broken extension (syntax error, missing base class, route conflict) is isolated: skipped with a logged warning, never aborts the load of others.

Defined Under Namespace

Classes: Result

Constant Summary collapse

DEFAULT_DIR = 
File.expand_path("~/.clacky/api_ext")
BUILTIN_DIR = 
File.expand_path("../default_extensions", __FILE__)
DISABLED_DIR = 
"_disabled"

Class Method Summary collapse

Class Method Details

.last_result ⇒ Object 



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# File 'lib/clacky/api_extension_loader.rb', line 50

def last_result
  @last_result || load_all
end

.load_all(dir: DEFAULT_DIR, builtin: true) ⇒ Object 



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# File 'lib/clacky/api_extension_loader.rb', line 21

def load_all(dir: DEFAULT_DIR, builtin: true)
  result = Result.new(loaded: [], skipped: [])
  Clacky::ApiExtension.reset_registry!

  # Load built-in (gem-shipped) extensions first (lowest priority)
  if builtin && Dir.exist?(BUILTIN_DIR)
    Dir.glob(File.join(BUILTIN_DIR, "*", "handler.rb")).sort.each do |handler_path|
      ext_dir = File.dirname(handler_path)
      ext_id  = File.basename(ext_dir)
      next if ext_id.start_with?("_")
      load_one(ext_id, ext_dir, handler_path, result)
    end
  end

  # Load user extensions (higher priority — same ext_id overwrites built-in)
  if Dir.exist?(dir)
    Dir.glob(File.join(dir, "*", "handler.rb")).sort.each do |handler_path|
      ext_dir = File.dirname(handler_path)
      ext_id  = File.basename(ext_dir)
      next if ext_id == DISABLED_DIR || ext_id.start_with?("_")
      load_one(ext_id, ext_dir, handler_path, result)
    end
  end

  @last_result = result
  log_summary(result)
  result
end

.load_one(ext_id, ext_dir, handler_path, result) ⇒ Object 



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# File 'lib/clacky/api_extension_loader.rb', line 54

def load_one(ext_id, ext_dir, handler_path, result)
  meta = read_meta(ext_dir)
  before = Clacky::ApiExtension.pending_subclasses.size

  require handler_path

  new_subclasses = Clacky::ApiExtension.pending_subclasses[before..] || []
  klass = new_subclasses.last

  unless klass
    result.skipped << [ext_id, "no Clacky::ApiExtension subclass defined in handler.rb"]
    log_skip(ext_id, result.skipped.last[1])
    return
  end

  klass.ext_id  = ext_id
  klass.ext_dir = ext_dir
  klass.meta    = meta

  if klass.routes.empty?
    result.skipped << [ext_id, "no routes declared (use get/post/... DSL)"]
    log_skip(ext_id, result.skipped.last[1])
    Clacky::ApiExtension.registry.delete(ext_id)
    return
  end

  if (gap = validate_public_endpoints(klass, meta))
    result.skipped << [ext_id, gap]
    log_skip(ext_id, gap)
    return
  end

  Clacky::ApiExtension.register(ext_id, klass)
  result.loaded << ext_id
  public_count = klass.public_paths.size
  suffix = public_count > 0 ? " (#{public_count} public)" : ""
  Clacky::Logger.info("[ApiExtensionLoader] Loaded '#{ext_id}' — #{klass.routes.size} route(s)#{suffix}")
rescue StandardError, ScriptError => e
  result.skipped << [ext_id, e.message]
  log_skip(ext_id, e.message)
end

.scaffold(name, dir: DEFAULT_DIR) ⇒ Object

Generate a starter handler.rb at ~/.clacky/api_ext//handler.rb. Returns the path to the generated file.

Raises:

  • (ArgumentError) 


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# File 'lib/clacky/api_extension_loader.rb', line 126

def scaffold(name, dir: DEFAULT_DIR)
  slug = name.to_s.strip.downcase.gsub(/[^a-z0-9_-]+/, "-").gsub(/\A-+|-+\z/, "")
  raise ArgumentError, "invalid api_ext name: #{name.inspect}" if slug.empty?

  target_dir = File.join(dir, slug)
  path = File.join(target_dir, "handler.rb")
  raise ArgumentError, "api_ext already exists: #{path}" if File.exist?(path)

  FileUtils.mkdir_p(target_dir)
  File.write(path, skeleton(slug))
  path
end