diff options
Diffstat (limited to 'lib/rubygems/request_set.rb')
-rw-r--r-- | lib/rubygems/request_set.rb | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/lib/rubygems/request_set.rb b/lib/rubygems/request_set.rb index 5541e64b88..49e56ae6fb 100644 --- a/lib/rubygems/request_set.rb +++ b/lib/rubygems/request_set.rb @@ -163,9 +163,26 @@ class Gem::RequestSet end end - spec = req.spec.install options do |installer| - yield req, installer if block_given? - end + spec = + begin + req.spec.install options do |installer| + yield req, installer if block_given? + end + rescue Gem::RuntimeRequirementNotMetError => e + recent_match = req.spec.set.find_all(req.request).sort_by(&:version).reverse_each.find do |s| + s = s.spec + s.required_ruby_version.satisfied_by?(Gem.ruby_version) && s.required_rubygems_version.satisfied_by?(Gem.rubygems_version) + end + if recent_match + suggestion = "The last version of #{req.request} to support your ruby & rubygems was #{recent_match.version}. Try installing it with `gem install #{recent_match.name} -v #{recent_match.version}`" + suggestion += " and then running the current command again" unless @always_install.any? { |spec| spec == req.spec.spec } + else + suggestion = "There are no versions of #{req.request} compatible with your ruby & rubygems" + suggestion += ". Maybe try installing an older version of the gem you're looking for?" unless @always_install.any? { |spec| spec == req.spec.spec } + end + e.suggestion = suggestion + raise + end requests << spec end |