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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 <glib.h> | 11 #include <glib.h> |
12 #include "chromeos/obsolete_logging.h" | 12 #include "chromeos/obsolete_logging.h" |
13 #include "update_engine/delta_diff_generator.h" | 13 #include "update_engine/delta_diff_generator.h" |
14 #include "update_engine/subprocess.h" | 14 #include "update_engine/subprocess.h" |
15 #include "update_engine/update_metadata.pb.h" | 15 #include "update_engine/update_metadata.pb.h" |
16 #include "update_engine/utils.h" | 16 #include "update_engine/utils.h" |
17 | 17 |
18 // This file contains a simple program that takes an old path, a new path, | 18 // 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 | 19 // 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. | 20 // generates a delta that can be sent to Chrome OS clients. |
21 | 21 |
22 using std::set; | 22 using std::set; |
23 using std::string; | 23 using std::string; |
24 | 24 |
25 namespace chromeos_update_engine { | 25 namespace chromeos_update_engine { |
26 | 26 |
27 namespace { | 27 namespace { |
28 // These paths should never be delta diffed. They should always be transmitted | |
29 // in full in the update. | |
30 const char* kNonDiffPaths[] = { | |
31 "/boot/extlinux.conf" | |
32 }; | |
33 | 28 |
34 void usage(const char* argv0) { | 29 void usage(const char* argv0) { |
35 printf("usage: %s old_dir new_dir out_file\n", argv0); | 30 printf("usage: %s old_dir new_dir out_file\n", argv0); |
36 exit(1); | 31 exit(1); |
37 } | 32 } |
38 | 33 |
39 bool IsDir(const char* path) { | 34 bool IsDir(const char* path) { |
40 struct stat stbuf; | 35 struct stat stbuf; |
41 TEST_AND_RETURN_FALSE_ERRNO(lstat(path, &stbuf) == 0); | 36 TEST_AND_RETURN_FALSE_ERRNO(lstat(path, &stbuf) == 0); |
42 return S_ISDIR(stbuf.st_mode); | 37 return S_ISDIR(stbuf.st_mode); |
43 } | 38 } |
44 | 39 |
45 int Main(int argc, char** argv) { | 40 int Main(int argc, char** argv) { |
46 g_thread_init(NULL); | 41 g_thread_init(NULL); |
47 Subprocess::Init(); | 42 Subprocess::Init(); |
48 if (argc != 4) { | 43 if (argc != 4) { |
49 usage(argv[0]); | 44 usage(argv[0]); |
50 } | 45 } |
51 logging::InitLogging("", | 46 logging::InitLogging("", |
52 logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG, | 47 logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG, |
53 logging::DONT_LOCK_LOG_FILE, | 48 logging::DONT_LOCK_LOG_FILE, |
54 logging::APPEND_TO_OLD_LOG_FILE); | 49 logging::APPEND_TO_OLD_LOG_FILE); |
55 const char* old_dir = argv[1]; | 50 const char* old_dir = argv[1]; |
56 const char* new_dir = argv[2]; | 51 const char* new_dir = argv[2]; |
57 if ((!IsDir(old_dir)) || (!IsDir(new_dir))) { | 52 if ((!IsDir(old_dir)) || (!IsDir(new_dir))) { |
58 usage(argv[0]); | 53 usage(argv[0]); |
59 } | 54 } |
60 | 55 |
61 set<string> non_diff_paths; | 56 // TODO(adlr): generate delta file |
62 for (size_t i = 0; i < arraysize(kNonDiffPaths); i++) | 57 |
63 non_diff_paths.insert(kNonDiffPaths[i]); | |
64 | |
65 DeltaArchiveManifest* manifest = | |
66 DeltaDiffGenerator::EncodeMetadataToProtoBuffer(new_dir); | |
67 CHECK(manifest); | |
68 CHECK(DeltaDiffGenerator::EncodeDataToDeltaFile(manifest, | |
69 old_dir, | |
70 new_dir, | |
71 argv[3], | |
72 non_diff_paths, | |
73 "")); | |
74 return 0; | 58 return 0; |
75 } | 59 } |
76 | 60 |
77 } // namespace {} | 61 } // namespace {} |
78 | 62 |
79 } // namespace chromeos_update_engine | 63 } // namespace chromeos_update_engine |
80 | 64 |
81 int main(int argc, char** argv) { | 65 int main(int argc, char** argv) { |
82 return chromeos_update_engine::Main(argc, argv); | 66 return chromeos_update_engine::Main(argc, argv); |
83 } | 67 } |
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