Class: Gem::Comparator::DependencyComparator

Inherits:
Base
  • Object
show all
Defined in:
lib/rubygems/comparator/dependency_comparator.rb

Overview

Gem::Comparator::DependencyComparator can compare dependencies between gem's versions based on the given Gem::Specification objects

Instance Method Summary collapse

Instance Method Details

#compare(specs, report, options = {}) ⇒ Object

Compare dependencies in given specs and write the changes to the report

If options is set, it compares only those dependencies



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# File 'lib/rubygems/comparator/dependency_comparator.rb', line 19

def compare(specs, report, options = {})
  info 'Checking dependencies...'

  filter_params(DEPENDENCY_PARAMS, options[:param]).each do |param|
    all_same = true
    type = param.gsub('_dependency', '').to_sym
    specs.each_with_index do |s, index|
      next if index == 0

      prev_deps = specs[index-1].dependencies.select { |d| d.type == type }
      curr_deps = specs[index].dependencies.select { |d| d.type == type }
      added, deleted, updated = resolve_dependencies(prev_deps, curr_deps)

      if (!deleted.empty? || !added.empty? || !updated.empty?)
        all_same = false
      end

      ver = "#{specs[index-1].version}->#{specs[index].version}"

      report[param][ver].section do
        set_header "#{Rainbow(specs[index-1].version).cyan}->#{Rainbow(s.version).cyan}:"

        nest('deleted').section do
          set_header '* Deleted:'
          puts deleted.map { |x| "#{x.name} #{x.requirements_list} (#{x.type})" } unless deleted.empty?
        end

        nest('added').section do
          set_header '* Added:'
          puts added.map { |x| "#{x.name} #{x.requirements_list} (#{x.type})" } unless added.empty?
        end

        nest('updated').section do
          set_header '* Updated:'
          puts updated unless updated.empty?
        end
      end
    end
    if all_same && options[:log_all]
      report[param].set_header "#{same} #{type} dependencies:" if options[:log_all]
      deps = specs[0].dependencies.select{ |d| d.type == type }.map{ |d| "#{d.name}: #{d.requirements_list}" }
      deps = '[]' if deps.empty?
      report[param] << deps
    elsif !all_same
      report[param].set_header "#{different} #{type} dependencies:"
    end
  end

  report
end