1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // 'courgette_minimal_tool' is not meant to be a serious command-line tool. It 6 // has the minimum logic to apply a Courgette patch to a file. The main purpose 7 // is to monitor the code size of the patcher. 8 9 #include <string> 10 11 #include "courgette/third_party/bsdiff.h" 12 #include "courgette/courgette.h" 13 #include "courgette/streams.h" 14 15 void PrintHelp() { 16 fprintf(stderr, 17 "Usage:\n" 18 " courgette_minimal_tool <old-file-input> <patch-file-input>" 19 " <new-file-output>\n" 20 "\n"); 21 } 22 23 void UsageProblem(const char* message) { 24 fprintf(stderr, "%s\n", message); 25 PrintHelp(); 26 exit(1); 27 } 28 29 void Problem(const char* message) { 30 fprintf(stderr, "%s\n", message); 31 exit(1); 32 } 33 34 #if defined(OS_WIN) 35 int wmain(int argc, const wchar_t* argv[]) { 36 #else 37 int main(int argc, const char* argv[]) { 38 #endif 39 if (argc != 4) 40 UsageProblem("bad args"); 41 42 courgette::Status status = 43 courgette::ApplyEnsemblePatch(argv[1], argv[2], argv[3]); 44 45 if (status != courgette::C_OK) { 46 if (status == courgette::C_READ_OPEN_ERROR) Problem("Can't open file."); 47 if (status == courgette::C_WRITE_OPEN_ERROR) Problem("Can't open file."); 48 if (status == courgette::C_READ_ERROR) Problem("Can't read from file."); 49 if (status == courgette::C_WRITE_ERROR) Problem("Can't write to file."); 50 Problem("patch failed."); 51 } 52 53 return 0; 54 } 55
