AlkantarClanX12
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# frozen_string_literal: true
module Gem::Resolver::Molinillo
# Conveys information about the resolution process to a user.
module UI
# The {IO} object that should be used to print output. `STDOUT`, by default.
#
# @return [IO]
def output
STDOUT
end
# Called roughly every {#progress_rate}, this method should convey progress
# to the user.
#
# @return [void]
def indicate_progress
output.print '.' unless debug?
end
# How often progress should be conveyed to the user via
# {#indicate_progress}, in seconds. A third of a second, by default.
#
# @return [Float]
def progress_rate
0.33
end
# Called before resolution begins.
#
# @return [void]
def before_resolution
output.print 'Resolving dependencies...'
end
# Called after resolution ends (either successfully or with an error).
# By default, prints a newline.
#
# @return [void]
def after_resolution
output.puts
end
# Conveys debug information to the user.
#
# @param [Integer] depth the current depth of the resolution process.
# @return [void]
def debug(depth = 0)
if debug?
debug_info = yield
debug_info = debug_info.inspect unless debug_info.is_a?(String)
output.puts debug_info.split("\n").map { |s| ' ' * depth + s }
end
end
# Whether or not debug messages should be printed.
# By default, whether or not the `MOLINILLO_DEBUG` environment variable is
# set.
#
# @return [Boolean]
def debug?
return @debug_mode if defined?(@debug_mode)
@debug_mode = ENV['MOLINILLO_DEBUG']
end
end
end