mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
04817ae6d3
Fixed installation and activation of git: and path: gems via Gem.use_gemdeps Improved documentation coverage * test/rubygems: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
122 lines
2.6 KiB
Ruby
122 lines
2.6 KiB
Ruby
##
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# Used internally to indicate that a dependency conflicted
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# with a spec that would be activated.
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class Gem::Resolver::Conflict
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##
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# The specification that was activated prior to the conflict
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attr_reader :activated
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##
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# The dependency that is in conflict with the activated gem.
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attr_reader :dependency
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attr_reader :failed_dep # :nodoc:
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##
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# Creates a new resolver conflict when +dependency+ is in conflict with an
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# already +activated+ specification.
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def initialize(dependency, activated, failed_dep=dependency)
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@dependency = dependency
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@activated = activated
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@failed_dep = failed_dep
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end
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def == other # :nodoc:
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self.class === other and
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@dependency == other.dependency and
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@activated == other.activated and
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@failed_dep == other.failed_dep
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end
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##
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# A string explanation of the conflict.
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def explain
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"<Conflict wanted: #{@failed_dep}, had: #{activated.spec.full_name}>"
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end
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##
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# Return the 2 dependency objects that conflicted
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def conflicting_dependencies
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[@failed_dep.dependency, @activated.request.dependency]
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end
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##
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# Explanation of the conflict used by exceptions to print useful messages
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def explanation
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activated = @activated.spec.full_name
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requirement = @failed_dep.dependency.requirement
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" Activated %s via:\n %s\n instead of (%s) via:\n %s\n" % [
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activated, request_path(@activated).join(', '),
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requirement, request_path(requester).join(', '),
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]
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end
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##
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# Returns true if the conflicting dependency's name matches +spec+.
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def for_spec?(spec)
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@dependency.name == spec.name
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end
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def pretty_print q # :nodoc:
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q.group 2, '[Dependency conflict: ', ']' do
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q.breakable
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q.text 'activated '
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q.pp @activated
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q.breakable
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q.text ' dependency '
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q.pp @dependency
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q.breakable
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if @dependency == @failed_dep then
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q.text ' failed'
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else
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q.text ' failed dependency '
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q.pp @failed_dep
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end
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end
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end
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##
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# Path of activations from the +current+ list.
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def request_path current
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path = []
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while current do
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requirement = current.request.dependency.requirement
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path << "#{current.spec.full_name} (#{requirement})"
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current = current.parent
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end
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path = ['user request (gem command or Gemfile)'] if path.empty?
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path
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end
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##
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# Return the Specification that listed the dependency
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def requester
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@failed_dep.requester
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end
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end
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##
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# TODO: Remove in RubyGems 3
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Gem::Resolver::DependencyConflict = Gem::Resolver::Conflict # :nodoc:
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