Merge pull request #162 from djmarcin/master

Fix auto-reshim on bundle install and gem uninstall.

rubygems-plugin/rubygems_plugin.rb

-# Yes borrowed from rbenv. Couldn't take my mind off that implementation
-
-Gem.post_install do |installer|
+module ReshimInstaller
+  def install(options)
+    super
+    # We don't know which gems were installed, so always reshim.
+    `asdf reshim ruby`
+  end
+end
 
-  if installer.spec.executables.any? && installer.bin_dir == Gem.default_bindir
+if defined?(Bundler::Installer)
+  Bundler::Installer.prepend ReshimInstaller
+else
+  Gem.post_install do |installer|
+    # Reshim any (potentially) new executables.
     installer.spec.executables.each do |executable|
-     `asdf reshim ruby #{RUBY_VERSION} bin/#{executable}`
+      `asdf reshim ruby #{RUBY_VERSION} bin/#{executable}`
     end
   end
-
+  Gem.post_uninstall do |installer|
+    # Unfortunately, reshimming just the removed executables or
+    # ruby version doesn't work as of 2020/04/23.
+    `asdf reshim ruby` if installer.spec.executables.any?
+  end
 end