def message
conflicts.sort.reduce("") do |o, (name, conflict)|
o << %(Bundler could not find compatible versions for gem "#{name}":\n)
if conflict.locked_requirement
o << %( In snapshot (#{Bundler.default_lockfile.basename}):\n)
o << %( #{printable_dep(conflict.locked_requirement)}\n)
o << %(\n)
end
o << %( In Gemfile:\n)
o << conflict.requirement_trees.sort_by {|t| t.reverse.map(&:name) }.map do |tree|
t = ""
depth = 2
tree.each do |req|
t << " " * depth << req.to_s
unless tree.last == req
if spec = conflict.activated_by_name[req.name]
t << %( was resolved to #{spec.version}, which)
end
t << %( depends on)
end
t << %(\n)
depth += 1
end
t
end.join("\n")
if name == "bundler"
o << %(\n Current Bundler version:\n bundler (#{Bundler::VERSION}))
other_bundler_required = !conflict.requirement.requirement.satisfied_by?(Gem::Version.new Bundler::VERSION)
end
if name == "bundler" && other_bundler_required
o << "\n"
o << "This Gemfile requires a different version of Bundler.\n"
o << "Perhaps you need to update Bundler by running `gem install bundler`?\n"
end
if conflict.locked_requirement
o << "\n"
o << %(Running `bundle update` will rebuild your snapshot from scratch, using only\n)
o << %(the gems in your Gemfile, which may resolve the conflict.\n)
elsif !conflict.existing
o << "\n"
if conflict.requirement_trees.first.size > 1
o << "Could not find gem '#{conflict.requirement}', which is required by "
o << "gem '#{conflict.requirement_trees.first[-2]}', in any of the sources."
else
o << "Could not find gem '#{conflict.requirement}' in any of the sources\n"
end
end
o
end
end