Reproduction script for issue #2678 on bundler/bundler.

repro-2678.sh

#!/bin/bash

set -ex

mkdir -p /tmp/repro-2678
cd /tmp/repro-2678

cat > Gemfile <<EOF
source "http://rubygems.org"
gem 'aws-s3', git: 'git://github.com/streamio/aws-s3.git', require: 'aws/s3'
EOF

bundle install

bundle env
# Bundler 1.3.5
# Ruby 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.3.0]
# Rubygems 2.0.9
# rvm 1.23.8 (stable)
# GEM_HOME /Users/druiden/.rvm/gems/ruby-2.0.0-p247
# GEM_PATH /Users/druiden/.rvm/gems/ruby-2.0.0-p247:/Users/druiden/.rvm/gems/ruby-2.0.0-p247@global
# rubygems-bundler (1.2.2)
#
# Gemfile
# source "http://rubygems.org"
# gem 'aws-s3', git: 'git://github.com/streamio/aws-s3.git', require: 'aws/s3'
#
# Gemfile.lock
# GIT
#   remote: git://github.com/streamio/aws-s3.git
#   revision: 553089ea479b47fafbf489734b3cb6d23f26cfa8
#   specs:
#     aws-s3 (0.6.3)
#       builder
#       mime-types
#       xml-simple
#
# GEM
#   remote: http://rubygems.org/
#   specs:
#     builder (3.2.2)
#     mime-types (1.25)
#     xml-simple (1.1.2)
#
# PLATFORMS
#   ruby
#
# DEPENDENCIES
#   aws-s3!
# + bundle open aws-s3

# Expected behaviour: should open the gem in a text-editor
# Observed behaviour: "Could not locate Gemfile"
bundle open aws-s3