courgette_minimal_tool.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2009 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 'courgette_minimal_tool' is not meant to be a serious command-line tool. It 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// has the minimum logic to apply a Courgette patch to a file. The main purpose 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// is to monitor the code size of the patcher. 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/file_util.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "courgette/third_party/bsdiff.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "courgette/courgette.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "courgette/streams.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrintHelp() { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fprintf(stderr, 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Usage:\n" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) " courgette_minimal_tool <old-file-input> <patch-file-input>" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) " <new-file-output>\n" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "\n"); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void UsageProblem(const char* message) { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fprintf(stderr, "%s\n", message); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrintHelp(); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) exit(1); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Problem(const char* message) { 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fprintf(stderr, "%s\n", message); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) exit(1); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int wmain(int argc, const wchar_t* argv[]) { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int main(int argc, const char* argv[]) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (argc != 4) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UsageProblem("bad args"); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) courgette::Status status = 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) courgette::ApplyEnsemblePatch(argv[1], argv[2], argv[3]); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status != courgette::C_OK) { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status == courgette::C_READ_OPEN_ERROR) Problem("Can't open file."); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status == courgette::C_WRITE_OPEN_ERROR) Problem("Can't open file."); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status == courgette::C_READ_ERROR) Problem("Can't read from file."); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status == courgette::C_WRITE_ERROR) Problem("Can't write to file."); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Problem("patch failed."); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 57