# module Gem::Resolver::Molinillo::UI

Conveys information about the resolution process to a user.

### Public Instance Methods

after_resolution() click to toggle source

Called after resolution ends (either successfully or with an error). By default, prints a newline.

@return [void]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 40
    def after_resolution
      output.puts
    end

before_resolution() click to toggle source

Called before resolution begins.

@return [void]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 32
    def before_resolution
      output.print 'Resolving dependencies...'
    end

debug(depth = 0) { || ... } click to toggle source

Conveys debug information to the user.

@param [Integer] depth the current depth of the resolution process. @return [void]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 48
    def debug(depth = 0)
      if debug?
        debug_info = yield
        debug_info = debug_info.inspect unless debug_info.is_a?(String)
        debug_info = debug_info.split("\n").map { |s| ":#{depth.to_s.rjust 4}: #{s}" }
        output.puts debug_info
      end
    end

debug?() click to toggle source

Whether or not debug messages should be printed. By default, whether or not the `MOLINILLO_DEBUG` environment variable is set.

@return [Boolean]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 62
    def debug?
      return @debug_mode if defined?(@debug_mode)
      @debug_mode = ENV['MOLINILLO_DEBUG']
    end

indicate_progress() click to toggle source

Called roughly every {#progress_rate}, this method should convey progress to the user.

@return [void]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 17
    def indicate_progress
      output.print '.' unless debug?
    end

output() click to toggle source

The {IO} object that should be used to print output. `STDOUT`, by default.

@return [IO]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 9
    def output
      STDOUT
    end

progress_rate() click to toggle source

How often progress should be conveyed to the user via {#indicate_progress}, in seconds. A third of a second, by default.

@return [Float]

    # File lib/rubygems/resolver/molinillo/lib/molinillo/modules/ui.rb, line 25
    def progress_rate
      0.33
    end