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# frozen_string_literal: true
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2013-02-05 15:52:28 -05:00
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#--
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2012-11-29 01:52:18 -05:00
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# This file contains all the various exceptions and other errors that are used
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# inside of RubyGems.
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#
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2012-11-29 01:52:18 -05:00
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# DOC: Confirm _all_
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#++
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2010-04-22 04:24:42 -04:00
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2012-11-29 01:52:18 -05:00
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module Gem
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##
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# Raised when RubyGems is unable to load or activate a gem. Contains the
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# name and version requirements of the gem that either conflicts with
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# already activated gems or that RubyGems is otherwise unable to activate.
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2010-04-22 04:24:42 -04:00
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2012-11-29 01:52:18 -05:00
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class LoadError < ::LoadError
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# Name of gem
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attr_accessor :name
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2012-11-29 01:52:18 -05:00
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# Version requirement of gem
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attr_accessor :requirement
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2010-04-22 04:24:42 -04:00
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end
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2016-04-06 02:01:14 -04:00
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##
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# Raised when trying to activate a gem, and that gem does not exist on the
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# system. Instead of rescuing from this class, make sure to rescue from the
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# superclass Gem::LoadError to catch all types of load errors.
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class MissingSpecError < Gem::LoadError
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def initialize(name, requirement, extra_message=nil)
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@name = name
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@requirement = requirement
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@extra_message = extra_message
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end
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def message # :nodoc:
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build_message +
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"Checked in 'GEM_PATH=#{Gem.path.join(File::PATH_SEPARATOR)}' #{@extra_message}, execute `gem env` for more information"
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end
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private
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def build_message
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total = Gem::Specification.stubs.size
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"Could not find '#{name}' (#{requirement}) among #{total} total gem(s)\n"
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end
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2016-04-06 02:01:14 -04:00
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end
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##
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# Raised when trying to activate a gem, and the gem exists on the system, but
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# not the requested version. Instead of rescuing from this class, make sure to
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# rescue from the superclass Gem::LoadError to catch all types of load errors.
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class MissingSpecVersionError < MissingSpecError
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attr_reader :specs
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def initialize(name, requirement, specs)
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super(name, requirement)
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@specs = specs
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end
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private
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def build_message
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if name == "bundler" && message = Gem::BundlerVersionFinder.missing_version_message
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return message
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end
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names = specs.map(&:full_name)
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"Could not find '#{name}' (#{requirement}) - did find: [#{names.join ','}]\n"
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end
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2016-04-06 02:01:14 -04:00
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end
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2014-09-13 23:30:02 -04:00
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# Raised when there are conflicting gem specs loaded
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class ConflictError < LoadError
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##
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# A Hash mapping conflicting specifications to the dependencies that
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# caused the conflict
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attr_reader :conflicts
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##
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# The specification that had the conflict
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attr_reader :target
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def initialize(target, conflicts)
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@target = target
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@conflicts = conflicts
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@name = target.name
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reason = conflicts.map do |act, dependencies|
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"#{act.full_name} conflicts with #{dependencies.join(", ")}"
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end.join ", "
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# TODO: improve message by saying who activated `con`
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super("Unable to activate #{target.full_name}, because #{reason}")
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end
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2014-09-13 23:30:02 -04:00
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end
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2012-11-29 01:52:18 -05:00
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class ErrorReason; end
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# Generated when trying to lookup a gem to indicate that the gem
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# was found, but that it isn't usable on the current platform.
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#
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# fetch and install read these and report them to the user to aid
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# in figuring out why a gem couldn't be installed.
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#
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class PlatformMismatch < ErrorReason
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##
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# the name of the gem
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attr_reader :name
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##
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# the version
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attr_reader :version
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##
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# The platforms that are mismatched
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attr_reader :platforms
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def initialize(name, version)
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@name = name
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@version = version
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@platforms = []
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end
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2012-11-29 01:52:18 -05:00
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##
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# append a platform to the list of mismatched platforms.
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#
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# Platforms are added via this instead of injected via the constructor
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# so that we can loop over a list of mismatches and just add them rather
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# than perform some kind of calculation mismatch summary before creation.
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def add_platform(platform)
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@platforms << platform
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end
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##
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# A wordy description of the error.
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def wordy
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"Found %s (%s), but was for platform%s %s" %
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[@name,
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@version,
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@platforms.size == 1 ? '' : 's',
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@platforms.join(' ,')]
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end
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2010-04-22 04:24:42 -04:00
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end
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2012-11-29 01:52:18 -05:00
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##
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# An error that indicates we weren't able to fetch some
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# data from a source
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class SourceFetchProblem < ErrorReason
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##
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# Creates a new SourceFetchProblem for the given +source+ and +error+.
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def initialize(source, error)
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@source = source
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@error = error
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end
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2013-11-18 19:34:13 -05:00
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##
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# The source that had the fetch problem.
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attr_reader :source
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##
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# The fetch error which is an Exception subclass.
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attr_reader :error
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##
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# An English description of the error.
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def wordy
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@source.uri.password = 'REDACTED' unless @source.uri.password.nil?
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"Unable to download data from #{@source.uri} - #{@error.message}"
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end
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2013-10-15 20:14:16 -04:00
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##
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# The "exception" alias allows you to call raise on a SourceFetchProblem.
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alias exception error
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2012-11-29 01:52:18 -05:00
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end
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2010-04-22 04:24:42 -04:00
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end
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