code: func WithBuildContext(t testingT, contextOperators ...func(*fakecontext.Fake) error) func(*icmd.Cmd) func() {
  	// FIXME(vdemeester) de-duplicate that
  	ctx := fakecontext.New(t, "", contextOperators...)
  	return func(cmd *icmd.Cmd) func() {
  		cmd.Dir = ctx.Dir
  		cmd.Command = append(cmd.Command, ".")
  		return closeBuildContext(t, ctx)
  	}
  }
docs: // WithBuildContext sets up the build context