2 files changed, 27 insertions, 1 deletions
diff --git a/spec/install/git_spec.rb b/spec/install/git_spec.rb
index ae9e5a145b..5c537beccd 100644
--- a/spec/install/git_spec.rb
+++ b/spec/install/git_spec.rb
@@ -875,4 +875,26 @@ describe "bundle install with git sources" do
     end
   end
 
+  it 'ignores git environment variables' do
+    build_git "xxxxxx" do |s|
+      s.executables = "xxxxxxbar"
+    end
+
+    Bundler::SharedHelpers.with_clean_git_env do
+      ENV['GIT_DIR']       = 'bar'
+      ENV['GIT_WORK_TREE'] = 'bar'
+
+      result = install_gemfile <<-G, :exitstatus => true
+        source "file://#{gem_repo1}"
+        git "#{lib_path('xxxxxx-1.0')}" do
+          gem 'xxxxxx'
+        end
+      G
+
+      expect(exitstatus).to eq(0)
+      expect(ENV['GIT_DIR']).to eq('bar')
+      expect(ENV['GIT_WORK_TREE']).to eq('bar')
+    end
+  end
+
 end
diff --git a/spec/support/builders.rb b/spec/support/builders.rb
index 856f0479cc..05c09a0b44 100644
--- a/spec/support/builders.rb
+++ b/spec/support/builders.rb
@@ -1,3 +1,5 @@
+require 'bundler/shared_helpers'
+
 module Spec
   module Builders
     def self.constantize(name)
@@ -588,7 +590,9 @@ module Spec
     private
 
       def git(cmd)
-        Dir.chdir(@path) { `git #{cmd}`.strip }
+        Bundler::SharedHelpers.with_clean_git_env do
+          Dir.chdir(@path) { `git #{cmd}`.strip }
+        end
       end
 
     end