lib/bundler/cli/gem.rb in bundler-1.14.3 vs lib/bundler/cli/gem.rb in bundler-1.14.4

@@ -120,11 +120,14 @@
           "ext/newgem/newgem.c.tt" => "ext/#{name}/#{underscored_name}.c"
         )
       end
 
       templates.each do |src, dst|
-        thor.template("newgem/#{src}", target.join(dst), config)
+        destination = target.join(dst)
+        SharedHelpers.filesystem_access(destination) do
+          thor.template("newgem/#{src}", destination, config)
+        end
       end
 
       executables.each do |file|
         path = target.join(file)
         executable = (path.stat.mode | 0o111)
@@ -137,9 +140,11 @@
         `git add .`
       end
 
       # Open gemspec in editor
       open_editor(options["edit"], target.join("#{name}.gemspec")) if options[:edit]
+    rescue Errno::EEXIST => e
+      raise GenericSystemCallError.new(e, "There was a conflict while creating the new gem.")
     end
 
   private
 
     def resolve_name(name)