1// Copyright 2015 The Kyua Authors. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution. 13// * Neither the name of Google Inc. nor the names of its contributors 14// may be used to endorse or promote products derived from this software 15// without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29// Dumps all environment variables. 30// 31// This helper program allows comparing the printed environment variables 32// to what 'kyua report --verbose' may output. It does so by sorting the 33// variables and allowing the caller to customize how the output looks 34// like (indentation for each line and for continuation lines). 35 36#include <cstdlib> 37#include <iostream> 38 39#include "utils/env.hpp" 40#include "utils/text/operations.ipp" 41 42namespace text = utils::text; 43 44 45int 46main(const int argc, const char* const* const argv) 47{ 48 if (argc != 3) { 49 std::cerr << "Usage: dump_env <prefix> <continuation-prefix>\n"; 50 return EXIT_FAILURE; 51 } 52 const char* prefix = argv[1]; 53 const char* continuation_prefix = argv[2]; 54 55 const std::map< std::string, std::string > env = utils::getallenv(); 56 for (std::map< std::string, std::string >::const_iterator 57 iter = env.begin(); iter != env.end(); ++iter) { 58 const std::string& name = (*iter).first; 59 const std::vector< std::string > value = text::split( 60 (*iter).second, '\n'); 61 62 if (value.empty()) { 63 std::cout << prefix << name << "=\n"; 64 } else { 65 std::cout << prefix << name << '=' << value[0] << '\n'; 66 for (std::vector< std::string >::size_type i = 1; 67 i < value.size(); ++i) { 68 std::cout << continuation_prefix << value[i] << '\n'; 69 } 70 } 71 } 72 73 return EXIT_SUCCESS; 74} 75