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##
# Used internally to indicate that a dependency conflicted
# with a spec that would be activated.
class Gem::DependencyResolver::DependencyConflict
attr_reader :activated
attr_reader :dependency
def initialize(dependency, activated, failed_dep=dependency)
@dependency = dependency
@activated = activated
@failed_dep = failed_dep
end
##
# Return the 2 dependency objects that conflicted
def conflicting_dependencies
[@failed_dep.dependency, @activated.request.dependency]
end
##
# Explanation of the conflict used by exceptions to print useful messages
def explanation
activated = @activated.spec.full_name
requirement = @failed_dep.dependency.requirement
" Activated %s instead of (%s) via:\n %s\n" % [
activated, requirement, request_path.join(', ')
]
end
def for_spec?(spec)
@dependency.name == spec.name
end
def pretty_print q # :nodoc:
q.group 2, '[Dependency conflict: ', ']' do
q.breakable
q.text 'activated '
q.pp @activated
q.breakable
q.text ' dependency '
q.pp @dependency
q.breakable
if @dependency == @failed_dep then
q.text ' failed'
else
q.text ' failed dependency '
q.pp @failed_dep
end
end
end
##
# Path of specifications that requested this dependency
def request_path
current = requester
path = []
while current do
path << current.spec.full_name
current = current.request.requester
end
path
end
##
# Return the Specification that listed the dependency
def requester
@failed_dep.requester
end
end
|
