Module: Metanorma::Plugin::Lutaml::Utils

Defined in:
lib/metanorma/plugin/lutaml/utils.rb

Overview

Helpers for lutaml macros

Constant Summary collapse

LUTAML_EXP_IDX_TAG = 
/^:lutaml-express-index:(?<index_name>.+?);(?<index_path>.+?);?(\s*cache=(?<cache_path>.+))?$/.freeze

Class Method Summary collapse

Class Method Details

.load_express_from_folder(folder) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 120

def load_express_from_folder(folder)
  files = Dir["#{folder}/*.exp"].map do |nested_path|
    File.new(nested_path, encoding: "UTF-8")
  end
  ::Lutaml::Parser.parse(files)
end

.load_express_from_index(_document, path) ⇒ Object

TODO: Refactor this using Suma::SchemaConfig



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 128

def load_express_from_index(_document, path)
  yaml_content = YAML.safe_load(File.read(path))
  schema_yaml_base_path = Pathname.new(File.dirname(path))

  # If there is a global root path set, all subsequent paths are
  # relative to it.
  if yaml_content["path"]
    root_schema_path = Pathname.new(yaml_content["path"])
    schema_yaml_base_path = schema_yaml_base_path + root_schema_path
  end

  files_to_load = yaml_content["schemas"].map do |key, value|
    # If there is no path: set for a schema, we assume it uses the
    # schema name as the #{filename}.exp.
    schema_path = Pathname.new(value["path"] || "#{key}.exp")

    real_schema_path = schema_yaml_base_path + schema_path
    File.new(real_schema_path.cleanpath.to_s, encoding: "UTF-8")
  end

  ::Lutaml::Parser.parse(files_to_load)
end

.load_express_repo_from_cache(path) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 101

def load_express_repo_from_cache(path)
  ::Lutaml::Parser
    .parse(File.new(path), ::Lutaml::Parser::EXPRESS_CACHE_PARSE_TYPE)
end

.load_express_repo_from_path(document, path) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 114

def load_express_repo_from_path(document, path)
  return load_express_from_folder(path) if File.directory?(path)

  load_express_from_index(document, path)
end

.load_express_repositories(path:, cache_path:, document:, force_read: false) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 59

def load_express_repositories(path:, cache_path:, document:, force_read: false)

  cache_full_path = cache_path &&
    Utils.relative_file_path(document, cache_path)

  # If there is cache and "force read" not set.
  if !force_read && cache_full_path && File.file?(cache_full_path)
    return load_express_repo_from_cache(cache_full_path)
  end

  # If there is no cache or "force read" is set.
  full_path = Utils.relative_file_path(document, path)
  lutaml_wrapper = load_express_repo_from_path(document, full_path)

  if cache_full_path && !File.file?(cache_full_path)
    save_express_repo_to_cache(
      cache_full_path,
      lutaml_wrapper.original_document,
      document,
    )
  end

  lutaml_wrapper
rescue Expressir::Error
  FileUtils.rm_rf(cache_full_path)

  load_express_repositories(
    path: path,
    cache_path: cache_path,
    document: document,
    force_read: true,
  )
rescue StandardError => e
  ::Metanorma::Util.log(
    "[metanorma-plugin-lutaml] Failed to load " \
    "#{full_path}: #{e.message}",
    :error,
  )
  raise e
  # nil
end

.notify_render_errors(document, errors) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 49

def notify_render_errors(document, errors)
  errors.each do |error_obj|
    ::Metanorma::Util.log(
      "[metanorma-plugin-lutaml] Liquid render error: " \
      "#{error_obj.message}",
      :error,
    )
  end
end

.parse_document_express_indexes(document, input_lines) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 151

def parse_document_express_indexes(document, input_lines)
  express_indexes = {}
  loop do
    line = input_lines.next

    # Finished parsing document attributes
    break if line.empty?

    match = line.match(LUTAML_EXP_IDX_TAG)
    next unless match

    name = match[:index_name]&.strip
    path = match[:index_path]&.strip
    cache = match[:cache_path]&.strip

    unless name && path
      raise StandardError.new("No name and path set in `:lutaml-express-index:` attribute.")
    end

    lutaml_expressir_wrapper = load_express_repositories(
      path: path,
      cache_path: cache,
      document: document,
    )

    if lutaml_expressir_wrapper
      express_indexes[name] = {
        wrapper: lutaml_expressir_wrapper,
        serialized_hash: nil,
      }
    end
  end

  express_indexes
rescue StopIteration
  express_indexes
ensure
  input_lines.rewind
end

.relative_file_path(document, file_path) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 18

def relative_file_path(document, file_path)
  docfile_directory = File.dirname(
    document.attributes["docfile"] || ".",
  )
  document
    .path_resolver
    .system_path(file_path, docfile_directory)
end

.render_liquid_string(template_string:, context_items:, context_name:, document:, include_path: nil) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 27

def render_liquid_string(template_string:, context_items:,
                         context_name:, document:, include_path: nil)
  liquid_template = ::Liquid::Template.parse(template_string)

  # Allow includes for the template
  include_paths = [
    Utils.relative_file_path(document, ""),
    include_path,
  ].compact

  liquid_template.registers[:file_system] =
    ::Metanorma::Plugin::Lutaml::Liquid::LocalFileSystem
      .new(include_paths, ["_%s.liquid", "_%s.adoc"])

  rendered_string = liquid_template
    .render(context_name => context_items,
            strict_variables: true,
            error_mode: :warn)

  [rendered_string, liquid_template.errors]
end

.save_express_repo_to_cache(path, repository, document) ⇒ Object 



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# File 'lib/metanorma/plugin/lutaml/utils.rb', line 106

def save_express_repo_to_cache(path, repository, document)
  root_path = Pathname.new(relative_file_path(document, ""))
  Expressir::Express::Cache
    .to_file(path,
             repository,
             root_path: root_path)
end