Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 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 |
| 4 | # found in the LICENSE file. |
| 5 | |
| 6 | """ |
| 7 | Script to set v8's version file to the version given by the latest tag. |
| 8 | """ |
| 9 | |
| 10 | |
| 11 | import os |
| 12 | import re |
| 13 | import subprocess |
| 14 | import sys |
| 15 | |
| 16 | |
| 17 | CWD = os.path.abspath( |
| 18 | os.path.dirname(os.path.dirname(os.path.dirname(__file__)))) |
| 19 | VERSION_CC = os.path.join(CWD, "src", "version.cc") |
| 20 | |
| 21 | def main(): |
| 22 | tag = subprocess.check_output( |
| 23 | "git describe --tags", |
| 24 | shell=True, |
| 25 | cwd=CWD, |
| 26 | ).strip() |
| 27 | assert tag |
| 28 | |
| 29 | # Check for commits not exactly matching a tag. Those are candidate builds |
| 30 | # for the next version. The output has the form |
| 31 | # <tag name>-<n commits>-<hash>. |
| 32 | if "-" in tag: |
| 33 | version = tag.split("-")[0] |
| 34 | candidate = "1" |
| 35 | else: |
| 36 | version = tag |
| 37 | candidate = "0" |
| 38 | version_levels = version.split(".") |
| 39 | |
| 40 | # Set default patch level if none is given. |
| 41 | if len(version_levels) == 3: |
| 42 | version_levels.append("0") |
| 43 | assert len(version_levels) == 4 |
| 44 | |
| 45 | major, minor, build, patch = version_levels |
| 46 | |
| 47 | # Increment build level for candidate builds. |
| 48 | if candidate == "1": |
| 49 | build = str(int(build) + 1) |
| 50 | patch = "0" |
| 51 | |
| 52 | # Modify version.cc with the new values. |
| 53 | with open(VERSION_CC, "r") as f: |
| 54 | text = f.read() |
| 55 | output = [] |
| 56 | for line in text.split("\n"): |
| 57 | for definition, substitute in ( |
| 58 | ("MAJOR_VERSION", major), |
| 59 | ("MINOR_VERSION", minor), |
| 60 | ("BUILD_NUMBER", build), |
| 61 | ("PATCH_LEVEL", patch), |
| 62 | ("IS_CANDIDATE_VERSION", candidate)): |
| 63 | if line.startswith("#define %s" % definition): |
| 64 | line = re.sub("\d+$", substitute, line) |
| 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 "" |
| 71 | patch_txt = ".%s" % patch if patch != "0" else "" |
| 72 | version_txt = ("%s.%s.%s%s%s" % |
| 73 | (major, minor, build, patch_txt, candidate_txt)) |
| 74 | print "Modified version.cc. Set V8 version to %s" % version_txt |
| 75 | return 0 |
| 76 | |
| 77 | if __name__ == "__main__": |
| 78 | sys.exit(main()) |