Module: Exwiw::ConfigFile

Defined in:
lib/exwiw/config_file.rb

Overview

Minimal reader for the exwiw config YAML (exwiw.yml / exwiw.yaml).

The CLI has its own, richer config handling (CLI#apply_config_file!); this module exists for contexts that have no CLI in scope — chiefly the ‘exwiw:schema:*` rake tasks, which otherwise only knew the EXWIW_SCHEMA_DIR_PATH env var and a hard-coded default. It deliberately reads only what those tasks need (schema_dir) and never aborts the process: an absent or unreadable config simply yields nil so the caller can fall back.

Constant Summary collapse

DEFAULT_PATHS =

Mirrors CLI::DEFAULT_CONFIG_PATHS; .yml wins when both are present.

%w[exwiw.yml exwiw.yaml].freeze

Class Method Summary collapse

Class Method Details

.schema_dir(path = nil) ⇒ Object

The ‘schema_dir` from the config file, expanded to an absolute path relative to the config file’s own directory (matching the CLI). Returns nil when no config file is found, it cannot be parsed, or it does not set ‘schema_dir`. Pass an explicit `path` to read a specific file; otherwise the default paths are looked up in the current directory.



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# File 'lib/exwiw/config_file.rb', line 25

def schema_dir(path = nil)
  path ||= DEFAULT_PATHS.map { |p| File.expand_path(p) }.find { |p| File.file?(p) }
  return nil if path.nil? || !File.file?(path)

  config =
    begin
      YAML.safe_load(File.read(path))
    rescue Psych::SyntaxError
      nil
    end
  return nil unless config.is_a?(Hash)

  value = config["schema_dir"]
  return nil if value.nil?

  # Strip a trailing slash and resolve relative to the config file's
  # directory, exactly as CLI#expand_dir does.
  value = value.end_with?("/") ? value[0..-2] : value
  File.expand_path(value, File.dirname(File.expand_path(path)))
end