Class: RuboCop::TargetFinder Private

Inherits:
Object
  • Object
show all
Defined in:
lib/rubocop/target_finder.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

This class finds target files to inspect by scanning the directory tree and picking ruby files.

Constant Summary collapse

HIDDEN_PATH_SUBSTRING =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

"#{File::SEPARATOR}."

Instance Method Summary collapse

Constructor Details

#initialize(config_store, options = {}) ⇒ TargetFinder

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of TargetFinder.


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# File 'lib/rubocop/target_finder.rb', line 10

def initialize(config_store, options = {})
  @config_store = config_store
  @options = options
end

Instance Method Details

#all_cops_includeObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 145

def all_cops_include
  @all_cops_include ||= @config_store.for_pwd.for_all_cops['Include'].map(&:to_s)
end

#combined_exclude_glob_patterns(base_dir) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 116

def combined_exclude_glob_patterns(base_dir)
  exclude = @config_store.for(base_dir).for_all_cops['Exclude']
  patterns = exclude.select { |pattern| pattern.is_a?(String) && pattern.end_with?('/**/*') }
                    .map { |pattern| pattern.sub("#{base_dir}/", '') }
  "#{base_dir}/{#{patterns.join(',')}}"
end

#configured_include?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 172

def configured_include?(file)
  @config_store.for_pwd.file_to_include?(file)
end

#debug?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 19

def debug?
  @options[:debug]
end

#fail_fast?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 23

def fail_fast?
  @options[:fail_fast]
end

#find(args, mode) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Generate a list of target files by expanding globbing patterns (if any). If args is empty, recursively find all Ruby source files under the current directory

Returns:

  • (Array)

    array of file paths


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# File 'lib/rubocop/target_finder.rb', line 31

def find(args, mode)
  return target_files_in_dir if args.empty?

  files = []

  args.uniq.each do |arg|
    files += if File.directory?(arg)
               target_files_in_dir(arg.chomp(File::SEPARATOR))
             else
               process_explicit_path(arg, mode)
             end
  end

  files.map { |f| File.expand_path(f) }.uniq
end

#find_files(base_dir, flags) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Search for files recursively starting at the given base directory using the given flags that determine how the match is made. Excluded files will be removed later by the caller, but as an optimization find_files removes the top level directories that are excluded in configuration in the normal way (dir/*/).


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# File 'lib/rubocop/target_finder.rb', line 83

def find_files(base_dir, flags)
  # get all wanted directories first to improve speed of finding all files
  exclude_pattern = combined_exclude_glob_patterns(base_dir)
  dir_flags = flags | File::FNM_PATHNAME | File::FNM_EXTGLOB
  patterns = wanted_dir_patterns(base_dir, exclude_pattern, dir_flags)
  patterns.map! { |dir| File.join(dir, '*') }
  # We need this special case to avoid creating the pattern
  # /**/* which searches the entire file system.
  patterns = [File.join(dir, '**/*')] if patterns.empty?

  Dir.glob(patterns, flags).select { |path| FileTest.file?(path) }
end

#force_exclusion?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 15

def force_exclusion?
  @options[:force_exclusion]
end

#included_file?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 176

def included_file?(file)
  ruby_file?(file) || configured_include?(file)
end

#process_explicit_path(path, mode) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 180

def process_explicit_path(path, mode)
  files = path.include?('*') ? Dir[path] : [path]

  if mode == :only_recognized_file_types || force_exclusion?
    files.select! { |file| included_file?(file) }
  end

  return files unless force_exclusion?

  files.reject do |file|
    config = @config_store.for(file)
    config.file_to_exclude?(file)
  end
end

#ruby_executable?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 149

def ruby_executable?(file)
  return false unless File.extname(file).empty? && File.exist?(file)

  first_line = File.open(file, &:readline)
  /#!.*(#{ruby_interpreters(file).join('|')})/.match?(first_line)
rescue EOFError, ArgumentError => e
  warn("Unprocessable file #{file}: #{e.class}, #{e.message}") if debug?

  false
end

#ruby_extension?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 123

def ruby_extension?(file)
  ruby_extensions.include?(File.extname(file))
end

#ruby_extensionsObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 127

def ruby_extensions
  @ruby_extensions ||= begin
    ext_patterns = all_cops_include.select { |pattern| pattern.start_with?('**/*.') }
    ext_patterns.map { |pattern| pattern.sub('**/*', '') }
  end
end

#ruby_file?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 168

def ruby_file?(file)
  stdin? || ruby_extension?(file) || ruby_filename?(file) || ruby_executable?(file)
end

#ruby_filename?(file) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 134

def ruby_filename?(file)
  ruby_filenames.include?(File.basename(file))
end

#ruby_filenamesObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 138

def ruby_filenames
  @ruby_filenames ||= begin
    file_patterns = all_cops_include.reject { |pattern| pattern.start_with?('**/*.') }
    file_patterns.map { |pattern| pattern.sub('**/', '') }
  end
end

#ruby_interpreters(file) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 160

def ruby_interpreters(file)
  @config_store.for(file).for_all_cops['RubyInterpreters']
end

#stdin?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 164

def stdin?
  @options.key?(:stdin)
end

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 108

def symlink_excluded_or_infinite_loop?(base_dir, current_dir, exclude_pattern, flags)
  dir_realpath = File.realpath(current_dir)
  File.symlink?(current_dir.chomp('/')) && (
    File.fnmatch?(exclude_pattern, "#{dir_realpath}/", flags) ||
    File.realpath(base_dir).start_with?(dir_realpath)
  )
end

#target_files_in_dir(base_dir = Dir.pwd) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Finds all Ruby source files under the current or other supplied directory. A Ruby source file is defined as a file with the `.rb` extension or a file with no extension that has a ruby shebang line as its first line. It is possible to specify includes and excludes using the config file, so you can include other Ruby files like Rakefiles and gemspecs.

Parameters:

  • base_dir (defaults to: Dir.pwd)

    Root directory under which to search for ruby source files

Returns:

  • (Array)

    Array of filenames


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# File 'lib/rubocop/target_finder.rb', line 56

def target_files_in_dir(base_dir = Dir.pwd)
  # Support Windows: Backslashes from command-line -> forward slashes
  base_dir = base_dir.gsub(File::ALT_SEPARATOR, File::SEPARATOR) if File::ALT_SEPARATOR
  all_files = find_files(base_dir, File::FNM_DOTMATCH)
  # use file.include? for performance optimization
  hidden_files = all_files.select { |file| file.include?(HIDDEN_PATH_SUBSTRING) }.sort
  base_dir_config = @config_store.for(base_dir)

  target_files = all_files.select { |file| to_inspect?(file, hidden_files, base_dir_config) }

  target_files.sort_by!(&order)
end

#to_inspect?(file, hidden_files, base_dir_config) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/rubocop/target_finder.rb', line 69

def to_inspect?(file, hidden_files, base_dir_config)
  return false if base_dir_config.file_to_exclude?(file)
  return true if !hidden_files.bsearch do |hidden_file|
    file <=> hidden_file
  end && ruby_file?(file)

  base_dir_config.file_to_include?(file)
end

#wanted_dir_patterns(base_dir, exclude_pattern, flags) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/target_finder.rb', line 96

def wanted_dir_patterns(base_dir, exclude_pattern, flags)
  base_dir = base_dir.gsub('/{}/', '/\{}/')
  dirs = Dir.glob(File.join(base_dir.gsub('/**/', '/\**/'), '*/'), flags)
            .reject do |dir|
              next true if dir.end_with?('/./', '/../')
              next true if File.fnmatch?(exclude_pattern, dir, flags)

              symlink_excluded_or_infinite_loop?(base_dir, dir, exclude_pattern, flags)
            end
  dirs.flat_map { |dir| wanted_dir_patterns(dir, exclude_pattern, flags) }.unshift(base_dir)
end