Module: I18n::Processes::UsedKeys

Included in:
BaseProcess
Defined in:
lib/i18n/processes/used_keys.rb

Overview

rubocop:disable Metrics/ModuleLength

Constant Summary collapse

SEARCH_DEFAULTS = 
{
  paths: %w[tmp/].freeze,
  relative_roots: %w[app/controllers app/helpers app/mailers app/presenters app/views].freeze,
  scanners: [
    ['::I18n::Processes::Scanners::RubyAstScanner', only: %w[*.rb]],
    ['::I18n::Processes::Scanners::PatternWithScopeScanner', exclude: %w[*.rb]]
  ],
  strict: true
}.freeze
ALWAYS_EXCLUDE = 
%w[*.jpg *.png *.gif *.svg *.ico *.eot *.otf *.ttf *.woff *.woff2 *.pdf *.css *.sass *.scss *.less
*.yml *.json *.zip *.tar.gz *.swf *.flv].freeze

Instance Method Summary collapse

Instance Method Details

#caching_file_finder_provider ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 116

def caching_file_finder_provider
  @caching_file_finder_provider ||= Scanners::Files::CachingFileFinderProvider.new(exclude: ALWAYS_EXCLUDE)
end

#caching_file_reader ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 120

def caching_file_reader
  @caching_file_reader ||= Scanners::Files::CachingFileReader.new
end

#merge_scanner_configs(a, b) ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 104

def merge_scanner_configs(a, b)
  a.deep_merge(b).tap do |c|
    %i[scanners paths relative_roots].each do |key|
      c[key] = a[key] if b[key].blank?
    end
    %i[exclude].each do |key|
      merged = Array(a[key]) + Array(b[key])
      c[key] = merged unless merged.empty?
    end
  end
end

#scanner(strict: nil) ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 64

def scanner(strict: nil)
  (@scanner ||= {})[strict?(strict)] ||= begin
    shared_options = search_config.dup
    shared_options.delete(:scanners)
    shared_options[:strict] = strict unless strict.nil?
    log_verbose 'Scanners: '
    Scanners::ScannerMultiplexer.new(
      scanners: search_config[:scanners].map do |(class_name, args)|
        if args && args[:strict]
          fail CommandError, 'the strict option is global and cannot be applied on the scanner level'
        end
        ActiveSupport::Inflector.constantize(class_name).new(
          config:               merge_scanner_configs(shared_options, args || {}),
          file_finder_provider: caching_file_finder_provider,
          file_reader:          caching_file_reader
        )
      end.tap { |scanners| log_verbose { scanners.map { |s| "  #{s.class.name} #{s.config.inspect}" } * "\n" } }
    )
  end
end

#search_config ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 85

def search_config
  @search_config ||= begin
    conf = (config[:search] || {}).deep_symbolize_keys
    if conf[:scanner]
      warn_deprecated 'search.scanner is now search.scanners, an array of [ScannerClass, options]'
      conf[:scanners] = [[conf.delete(:scanner)]]
    end
    if conf[:ignore_lines]
      warn_deprecated 'search.ignore_lines is no longer a global setting: pass it directly to the pattern scanner.'
      conf.delete(:ignore_lines)
    end
    if conf[:include]
      warn_deprecated 'search.include is now search.only'
      conf[:only] = conf.delete(:include)
    end
    merge_scanner_configs(SEARCH_DEFAULTS, conf).freeze
  end
end

#used_in_expr?(key) ⇒ Boolean

Returns whether the key is potentially used in a code expression such as ‘t(“category.#category_key”)`.

Returns:

  • (Boolean) —

    whether the key is potentially used in a code expression such as ‘t(“category.#category_key”)`



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# File 'lib/i18n/processes/used_keys.rb', line 125

def used_in_expr?(key)
  !!(key =~ expr_key_re) # rubocop:disable Style/DoubleNegation
end

#used_in_source_tree(key_filter: nil, strict: nil) ⇒ Object 



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# File 'lib/i18n/processes/used_keys.rb', line 50

def used_in_source_tree(key_filter: nil, strict: nil)
  keys = ((@keys_used_in_source_tree ||= {})[strict?(strict)] ||=
            scanner(strict: strict).keys.freeze)
  if key_filter
    key_filter_re = compile_key_pattern(key_filter)
    keys          = keys.select { |k| k.key =~ key_filter_re }
  end
  Data::Tree::Node.new(
    key:      'used',
    data:     { key_filter: key_filter },
    children: Data::Tree::Siblings.from_key_occurrences(keys)
  ).to_siblings
end

#used_tree(key_filter: nil, strict: nil, include_raw_references: false) ⇒ Data::Tree::Siblings

Find all keys in the source and return a forest with the keys in absolute form and their occurrences.

Parameters:

  • key_filter (String) (defaults to: nil) —

    only return keys matching this pattern.

  • strict (Boolean) (defaults to: nil) —

    if true, dynamic keys are excluded (e.g. ‘t(“category.#{ category.key }”)`)

  • include_raw_references (Boolean) (defaults to: false) —

    if true, includes reference usages as they appear in the source

Returns:



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# File 'lib/i18n/processes/used_keys.rb', line 36

def used_tree(key_filter: nil, strict: nil, include_raw_references: false)
  src_tree = used_in_source_tree(key_filter: key_filter, strict: strict)
  raw_refs, resolved_refs, used_refs = process_references(src_tree['used'].children)
  raw_refs.leaves { |node| node.data[:ref_type] = :reference_usage }
  resolved_refs.leaves { |node| node.data[:ref_type] = :reference_usage_resolved }
  used_refs.leaves { |node| node.data[:ref_type] = :reference_usage_key }
  src_tree.tap do |result|
    tree = result['used'].children
    tree.subtract_by_key!(raw_refs)
    tree.merge!(raw_refs) if include_raw_references
    tree.merge!(used_refs).merge!(resolved_refs)
  end
end