OLD | NEW |
1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # Copyright 2014 the V8 project authors. All rights reserved. | 2 # Copyright 2014 the V8 project authors. All rights reserved. |
3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
5 | 5 |
6 """ | 6 """ |
7 Script to set v8's version file to the version given by the latest tag. | 7 Script to set v8's version file to the version given by the latest tag. |
| 8 |
| 9 The script can be run in two modes: |
| 10 1) As a gclient hook with the option --hook. |
| 11 The script will write a temporary version file into the checkout. |
| 12 2) During compilation as an action. |
| 13 The script will write version.cc in the output folder based on the |
| 14 tag info. In case of a failure it will fall back to the temporary file |
| 15 from the hook call. |
| 16 |
| 17 In most cases, 2) will succeed and the temporary information from 1) won't |
| 18 be used. In case the checkout is copied somewhere and the git context is |
| 19 lost (e.g. on the android_aosp builder), the temporary file from 1) is |
| 20 required. |
8 """ | 21 """ |
9 | 22 |
10 | 23 |
| 24 import optparse |
11 import os | 25 import os |
12 import re | 26 import re |
13 import subprocess | 27 import subprocess |
14 import sys | 28 import sys |
15 | 29 |
16 | 30 |
17 CWD = os.path.abspath( | 31 CWD = os.path.abspath( |
18 os.path.dirname(os.path.dirname(os.path.dirname(__file__)))) | 32 os.path.dirname(os.path.dirname(os.path.dirname(__file__)))) |
19 VERSION_CC = os.path.join(CWD, "src", "version.cc") | 33 VERSION_CC = os.path.join(CWD, "src", "version.cc") |
| 34 TMP_VERSION_CC = os.path.join(CWD, ".version.cc") |
20 | 35 |
21 def main(): | 36 |
| 37 def generate_version_file(): |
22 tag = subprocess.check_output( | 38 tag = subprocess.check_output( |
23 "git describe --tags", | 39 "git describe --tags", |
24 shell=True, | 40 shell=True, |
25 cwd=CWD, | 41 cwd=CWD, |
26 ).strip() | 42 ).strip() |
27 assert tag | 43 assert tag |
28 | 44 |
29 # Check for commits not exactly matching a tag. Those are candidate builds | 45 # Check for commits not exactly matching a tag. Those are candidate builds |
30 # for the next version. The output has the form | 46 # for the next version. The output has the form |
31 # <tag name>-<n commits>-<hash>. | 47 # <tag name>-<n commits>-<hash>. |
(...skipping 11 matching lines...) Expand all Loading... |
43 assert len(version_levels) == 4 | 59 assert len(version_levels) == 4 |
44 | 60 |
45 major, minor, build, patch = version_levels | 61 major, minor, build, patch = version_levels |
46 | 62 |
47 # Increment build level for candidate builds. | 63 # Increment build level for candidate builds. |
48 if candidate == "1": | 64 if candidate == "1": |
49 build = str(int(build) + 1) | 65 build = str(int(build) + 1) |
50 patch = "0" | 66 patch = "0" |
51 | 67 |
52 # Modify version.cc with the new values. | 68 # Modify version.cc with the new values. |
| 69 output = [] |
53 with open(VERSION_CC, "r") as f: | 70 with open(VERSION_CC, "r") as f: |
54 text = f.read() | 71 for line in f: |
55 output = [] | 72 for definition, substitute in ( |
56 for line in text.split("\n"): | 73 ("MAJOR_VERSION", major), |
57 for definition, substitute in ( | 74 ("MINOR_VERSION", minor), |
58 ("MAJOR_VERSION", major), | 75 ("BUILD_NUMBER", build), |
59 ("MINOR_VERSION", minor), | 76 ("PATCH_LEVEL", patch), |
60 ("BUILD_NUMBER", build), | 77 ("IS_CANDIDATE_VERSION", candidate)): |
61 ("PATCH_LEVEL", patch), | 78 if line.startswith("#define %s" % definition): |
62 ("IS_CANDIDATE_VERSION", candidate)): | 79 line = re.sub("\d+$", substitute, line) |
63 if line.startswith("#define %s" % definition): | 80 output.append(line) |
64 line = re.sub("\d+$", substitute, line) | 81 # Log what was calculated. |
65 output.append(line) | |
66 with open(VERSION_CC, "w") as f: | |
67 f.write("\n".join(output)) | |
68 | |
69 # Log what was done. | |
70 candidate_txt = " (candidate)" if candidate == "1" else "" | 82 candidate_txt = " (candidate)" if candidate == "1" else "" |
71 patch_txt = ".%s" % patch if patch != "0" else "" | 83 patch_txt = ".%s" % patch if patch != "0" else "" |
72 version_txt = ("%s.%s.%s%s%s" % | 84 version_txt = ("%s.%s.%s%s%s" % |
73 (major, minor, build, patch_txt, candidate_txt)) | 85 (major, minor, build, patch_txt, candidate_txt)) |
74 print "Modified version.cc. Set V8 version to %s" % version_txt | 86 print "Modifying version.cc. Set V8 version to %s" % version_txt |
| 87 return "".join(output) |
| 88 |
| 89 |
| 90 def delete_tmp_version_file(): |
| 91 # Make sure a subsequent call to this script doesn't use an outdated |
| 92 # version file. |
| 93 if os.path.exists(TMP_VERSION_CC): |
| 94 os.remove(TMP_VERSION_CC) |
| 95 |
| 96 |
| 97 def main(): |
| 98 parser = optparse.OptionParser() |
| 99 parser.add_option("--hook", |
| 100 help="Run as a gclient hook", |
| 101 default=False, action="store_true") |
| 102 (options, args) = parser.parse_args() |
| 103 |
| 104 if options.hook: |
| 105 version_out = TMP_VERSION_CC |
| 106 else: |
| 107 if len(args) != 1: |
| 108 print "Error: Specify the output file path for version.cc" |
| 109 return 1 |
| 110 version_out = args[0] |
| 111 |
| 112 assert os.path.exists(os.path.dirname(version_out)) |
| 113 |
| 114 try: |
| 115 version_file_content = generate_version_file() |
| 116 except Exception as e: |
| 117 # Allow exceptions when run during compilation. E.g. there might be no git |
| 118 # context availabe. When run as a gclient hook, generation must succeed. |
| 119 if options.hook: |
| 120 delete_tmp_version_file() |
| 121 raise e |
| 122 # Assume the script already ran as a hook. |
| 123 print "No git context available. Using V8 version from hook." |
| 124 assert os.path.exists(TMP_VERSION_CC) |
| 125 with open(TMP_VERSION_CC, "r") as f: |
| 126 version_file_content = f.read() |
| 127 |
| 128 delete_tmp_version_file() |
| 129 with open(version_out, "w") as f: |
| 130 f.write(version_file_content) |
75 return 0 | 131 return 0 |
76 | 132 |
77 if __name__ == "__main__": | 133 if __name__ == "__main__": |
78 sys.exit(main()) | 134 sys.exit(main()) |
OLD | NEW |