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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <sys/types.h> | 5 #include <sys/types.h> |
6 #include <sys/stat.h> | 6 #include <sys/stat.h> |
7 #include <errno.h> | 7 #include <errno.h> |
8 #include <unistd.h> | 8 #include <unistd.h> |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
| 11 #include <gflags/gflags.h> |
11 #include <glib.h> | 12 #include <glib.h> |
| 13 #include "base/command_line.h" |
12 #include "chromeos/obsolete_logging.h" | 14 #include "chromeos/obsolete_logging.h" |
13 #include "update_engine/delta_diff_generator.h" | 15 #include "update_engine/delta_diff_generator.h" |
14 #include "update_engine/subprocess.h" | 16 #include "update_engine/subprocess.h" |
15 #include "update_engine/update_metadata.pb.h" | 17 #include "update_engine/update_metadata.pb.h" |
16 #include "update_engine/utils.h" | 18 #include "update_engine/utils.h" |
17 | 19 |
| 20 DEFINE_string(old_dir, "", |
| 21 "Directory where the old rootfs is loop mounted read-only"); |
| 22 DEFINE_string(new_dir, "", |
| 23 "Directory where the new rootfs is loop mounted read-only"); |
| 24 DEFINE_string(old_image, "", "Path to the old rootfs"); |
| 25 DEFINE_string(new_image, "", "Path to the new rootfs"); |
| 26 DEFINE_string(out_file, "", "Path to output file"); |
| 27 |
18 // This file contains a simple program that takes an old path, a new path, | 28 // This file contains a simple program that takes an old path, a new path, |
19 // and an output file as arguments and the path to an output file and | 29 // and an output file as arguments and the path to an output file and |
20 // generates a delta that can be sent to Chrome OS clients. | 30 // generates a delta that can be sent to Chrome OS clients. |
21 | 31 |
22 using std::set; | 32 using std::set; |
23 using std::string; | 33 using std::string; |
24 | 34 |
25 namespace chromeos_update_engine { | 35 namespace chromeos_update_engine { |
26 | 36 |
27 namespace { | 37 namespace { |
28 | 38 |
29 void usage(const char* argv0) { | |
30 printf("usage: %s old_dir new_dir out_file\n", argv0); | |
31 exit(1); | |
32 } | |
33 | |
34 bool IsDir(const char* path) { | 39 bool IsDir(const char* path) { |
35 struct stat stbuf; | 40 struct stat stbuf; |
36 TEST_AND_RETURN_FALSE_ERRNO(lstat(path, &stbuf) == 0); | 41 TEST_AND_RETURN_FALSE_ERRNO(lstat(path, &stbuf) == 0); |
37 return S_ISDIR(stbuf.st_mode); | 42 return S_ISDIR(stbuf.st_mode); |
38 } | 43 } |
39 | 44 |
40 int Main(int argc, char** argv) { | 45 int Main(int argc, char** argv) { |
41 g_thread_init(NULL); | 46 g_thread_init(NULL); |
| 47 google::ParseCommandLineFlags(&argc, &argv, true); |
| 48 CommandLine::Init(argc, argv); |
42 Subprocess::Init(); | 49 Subprocess::Init(); |
43 if (argc != 4) { | 50 logging::InitLogging("delta_generator.log", |
44 usage(argv[0]); | |
45 } | |
46 logging::InitLogging("", | |
47 logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG, | 51 logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG, |
48 logging::DONT_LOCK_LOG_FILE, | 52 logging::DONT_LOCK_LOG_FILE, |
49 logging::APPEND_TO_OLD_LOG_FILE); | 53 logging::APPEND_TO_OLD_LOG_FILE); |
50 const char* old_dir = argv[1]; | 54 if (FLAGS_old_dir.empty() || FLAGS_new_dir.empty() || |
51 const char* new_dir = argv[2]; | 55 FLAGS_old_image.empty() || FLAGS_new_image.empty() || |
52 if ((!IsDir(old_dir)) || (!IsDir(new_dir))) { | 56 FLAGS_out_file.empty()) { |
53 usage(argv[0]); | 57 LOG(FATAL) << "Missing required argument(s)"; |
| 58 } |
| 59 if ((!IsDir(FLAGS_old_dir.c_str())) || (!IsDir(FLAGS_new_dir.c_str()))) { |
| 60 LOG(FATAL) << "old_dir or new_dir not directory"; |
54 } | 61 } |
55 | 62 |
56 // TODO(adlr): generate delta file | 63 DeltaDiffGenerator::GenerateDeltaUpdateFile(FLAGS_old_dir, |
| 64 FLAGS_old_image, |
| 65 FLAGS_new_dir, |
| 66 FLAGS_new_image, |
| 67 FLAGS_out_file); |
57 | 68 |
58 return 0; | 69 return 0; |
59 } | 70 } |
60 | 71 |
61 } // namespace {} | 72 } // namespace {} |
62 | 73 |
63 } // namespace chromeos_update_engine | 74 } // namespace chromeos_update_engine |
64 | 75 |
65 int main(int argc, char** argv) { | 76 int main(int argc, char** argv) { |
66 return chromeos_update_engine::Main(argc, argv); | 77 return chromeos_update_engine::Main(argc, argv); |
67 } | 78 } |
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