Fix incorrect bundled gems warning for hyphenated gem names

When requiring a file like "benchmark/ips", the warning system would
incorrectly warn about the "benchmark" gem not being a default gem,
even when the user has "benchmark-ips" (a separate third-party gem)
in their Gemfile.

The fix checks if a hyphenated version of the require path exists in
the bundle specs before issuing a warning. For example, requiring
"benchmark/ips" now checks for both "benchmark" and "benchmark-ips"
in the Gemfile.

[Bug #21828]

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/bundled_gems.rb b/lib/bundled_gems.rb
index 49fb90249d..3ac10aa256 100644
--- a/lib/bundled_gems.rb
+++ b/lib/bundled_gems.rb
@@ -124,6 +124,16 @@ module Gem::BUNDLED_GEMS # :nodoc:
 
     return if specs.include?(name)
 
+    # Don't warn if a hyphenated gem provides this feature
+    # (e.g., benchmark-ips provides benchmark/ips, not the benchmark gem)
+    if subfeature
+      feature_parts = feature.split("/")
+      if feature_parts.size >= 2
+        hyphenated_gem = "#{feature_parts[0]}-#{feature_parts[1]}"
+        return if specs.include?(hyphenated_gem)
+      end
+    end
+
     return if WARNED[name]
     WARNED[name] = true