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chromium / chromium / src / 75f4152e5cde392fdb1519fdebc34faed74e3e12 / . / courgette / courgette_minimal_tool.cc
blob: 45ac63174ce58c719d72adecaabf163efa753c3e [file] [log] [blame]
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]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
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]11#include "courgette/courgette.h"
12#include "courgette/streams.h"
altimin979ea2e2016-05-18 16:16:24[diff] [blame]13#include "courgette/third_party/bsdiff/bsdiff.h"
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]14
15void 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
23void UsageProblem(const char* message) {
24 fprintf(stderr, "%s\n", message);
25 PrintHelp();
26 exit(1);
27}
28
29void Problem(const char* message) {
30 fprintf(stderr, "%s\n", message);
31 exit(1);
32}
33
sra@google.com54f1b822009-07-18 03:28:40[diff] [blame]34#if defined(OS_WIN)
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]35int wmain(int argc, const wchar_t* argv[]) {
sra@google.com54f1b822009-07-18 03:28:40[diff] [blame]36#else
37int main(int argc, const char* argv[]) {
38#endif
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]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 }
sra@chromium.orgd38c3a22009-07-22 01:30:06[diff] [blame]52
53 return 0;
sra@chromium.org04ca1bc2009-05-08 23:00:29[diff] [blame]54}