module Bundler::Thor::Util

# File bundler/vendor/thor/lib/thor/util.rb, line 104
def camel_case(str)
  return str if str !~ /_/ && str =~ /[A-Z]+.*/
  str.split("_").map(&:capitalize).join
end

# File bundler/vendor/thor/lib/thor/util.rb, line 263
def escape_globs(path)
  path.to_s.gsub(/[*?{}\[\]]/, '\\\\\\&')
end

# File bundler/vendor/thor/lib/thor/util.rb, line 279
def escape_html(string)
  CGI.escapeHTML(string)
end

# File bundler/vendor/thor/lib/thor/util.rb, line 24
def find_by_namespace(namespace)
  namespace = "default#{namespace}" if namespace.empty? || namespace =~ /^:/
  Bundler::Thor::Base.subclasses.detect { |klass| klass.namespace == namespace }
end

# File bundler/vendor/thor/lib/thor/util.rb, line 131
def find_class_and_command_by_namespace(namespace, fallback = true)
  if namespace.include?(":") # look for a namespaced command
    pieces  = namespace.split(":")
    command = pieces.pop
    klass   = Bundler::Thor::Util.find_by_namespace(pieces.join(":"))
  end
  unless klass # look for a Bundler::Thor::Group with the right name
    klass = Bundler::Thor::Util.find_by_namespace(namespace)
    command = nil
  end
  if !klass && fallback # try a command in the default namespace
    command = namespace
    klass   = Bundler::Thor::Util.find_by_namespace("")
  end
  [klass, command]
end

# File bundler/vendor/thor/lib/thor/util.rb, line 212
def globs_for(path)
  path = escape_globs(path)
  ["#{path}/Thorfile", "#{path}/*.thor", "#{path}/tasks/*.thor", "#{path}/lib/tasks/**/*.thor"]
end

# File bundler/vendor/thor/lib/thor/util.rb, line 152
def load_thorfile(path, content = nil, debug = false)
  content ||= File.read(path)

  begin
    Bundler::Thor::Sandbox.class_eval(content, path)
  rescue StandardError => e
    $stderr.puts("WARNING: unable to load thorfile #{path.inspect}: #{e.message}")
    if debug
      $stderr.puts(*e.backtrace)
    else
      $stderr.puts(e.backtrace.first)
    end
  end
end

# File bundler/vendor/thor/lib/thor/util.rb, line 43
def namespace_from_thor_class(constant)
  constant = constant.to_s.gsub(/^Bundler::Thor::Sandbox::/, "")
  constant = snake_case(constant).squeeze(":")
  constant
end

# File bundler/vendor/thor/lib/thor/util.rb, line 58
def namespaces_in_content(contents, file = __FILE__)
  old_constants = Bundler::Thor::Base.subclasses.dup
  Bundler::Thor::Base.subclasses.clear

  load_thorfile(file, contents)

  new_constants = Bundler::Thor::Base.subclasses.dup
  Bundler::Thor::Base.subclasses.replace(old_constants)

  new_constants.map!(&:namespace)
  new_constants.compact!
  new_constants
end

# File bundler/vendor/thor/lib/thor/util.rb, line 220
def ruby_command
  @ruby_command ||= begin
    ruby_name = RbConfig::CONFIG["ruby_install_name"]
    ruby = File.join(RbConfig::CONFIG["bindir"], ruby_name)
    ruby << RbConfig::CONFIG["EXEEXT"]

    # avoid using different name than ruby (on platforms supporting links)
    if ruby_name != "ruby" && File.respond_to?(:readlink)
      begin
        alternate_ruby = File.join(RbConfig::CONFIG["bindir"], "ruby")
        alternate_ruby << RbConfig::CONFIG["EXEEXT"]

        # ruby is a symlink
        if File.symlink? alternate_ruby
          linked_ruby = File.readlink alternate_ruby

          # symlink points to 'ruby_install_name'
          ruby = alternate_ruby if linked_ruby == ruby_name || linked_ruby == ruby
        end
      rescue NotImplementedError # rubocop:disable Lint/HandleExceptions
        # just ignore on windows
      end
    end

    # escape string in case path to ruby executable contain spaces.
    ruby.sub!(/.*\s.*/m, '"\&"')
    ruby
  end
end

# File bundler/vendor/thor/lib/thor/util.rb, line 90
def snake_case(str)
  return str.downcase if str =~ /^[A-Z_]+$/
  str.gsub(/\B[A-Z]/, '_\&').squeeze("_") =~ /_*(.*)/
  Regexp.last_match(-1).downcase
end

# File bundler/vendor/thor/lib/thor/util.rb, line 74
def thor_classes_in(klass)
  stringfied_constants = klass.constants.map(&:to_s)
  Bundler::Thor::Base.subclasses.select do |subclass|
    next unless subclass.name
    stringfied_constants.include?(subclass.name.gsub("#{klass.name}::", ""))
  end
end

# File bundler/vendor/thor/lib/thor/util.rb, line 191
def thor_root
  File.join(user_home, ".thor").tr("\\", "/")
end

# File bundler/vendor/thor/lib/thor/util.rb, line 202
def thor_root_glob
  files = Dir["#{escape_globs(thor_root)}/*"]

  files.map! do |file|
    File.directory?(file) ? File.join(file, "main.thor") : file
  end
end

# File bundler/vendor/thor/lib/thor/util.rb, line 167
def user_home
  @@user_home ||= if ENV["HOME"]
    ENV["HOME"]
  elsif ENV["USERPROFILE"]
    ENV["USERPROFILE"]
  elsif ENV["HOMEDRIVE"] && ENV["HOMEPATH"]
    File.join(ENV["HOMEDRIVE"], ENV["HOMEPATH"])
  elsif ENV["APPDATA"]
    ENV["APPDATA"]
  else
    begin
      File.expand_path("~")
    rescue
      if File::ALT_SEPARATOR
        "C:/"
      else
        "/"
      end
    end
  end
end