| #!/usr/bin/env python |
| # Copyright 2014 the V8 project authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """ |
| Script to set v8's version file to the version given by the latest tag. |
| """ |
| |
| |
| import os |
| import re |
| import subprocess |
| import sys |
| |
| |
| CWD = os.path.abspath( |
| os.path.dirname(os.path.dirname(os.path.dirname(__file__)))) |
| VERSION_CC = os.path.join(CWD, "src", "version.cc") |
| |
| def main(): |
| tag = subprocess.check_output( |
| "git describe --tags", |
| shell=True, |
| cwd=CWD, |
| ).strip() |
| assert tag |
| |
| # Check for commits not exactly matching a tag. Those are candidate builds |
| # for the next version. The output has the form |
| # <tag name>-<n commits>-<hash>. |
| if "-" in tag: |
| version = tag.split("-")[0] |
| candidate = "1" |
| else: |
| version = tag |
| candidate = "0" |
| version_levels = version.split(".") |
| |
| # Set default patch level if none is given. |
| if len(version_levels) == 3: |
| version_levels.append("0") |
| assert len(version_levels) == 4 |
| |
| major, minor, build, patch = version_levels |
| |
| # Increment build level for candidate builds. |
| if candidate == "1": |
| build = str(int(build) + 1) |
| patch = "0" |
| |
| # Modify version.cc with the new values. |
| with open(VERSION_CC, "r") as f: |
| text = f.read() |
| output = [] |
| for line in text.split("\n"): |
| for definition, substitute in ( |
| ("MAJOR_VERSION", major), |
| ("MINOR_VERSION", minor), |
| ("BUILD_NUMBER", build), |
| ("PATCH_LEVEL", patch), |
| ("IS_CANDIDATE_VERSION", candidate)): |
| if line.startswith("#define %s" % definition): |
| line = re.sub("\d+$", substitute, line) |
| output.append(line) |
| with open(VERSION_CC, "w") as f: |
| f.write("\n".join(output)) |
| |
| # Log what was done. |
| candidate_txt = " (candidate)" if candidate == "1" else "" |
| patch_txt = ".%s" % patch if patch != "0" else "" |
| version_txt = ("%s.%s.%s%s%s" % |
| (major, minor, build, patch_txt, candidate_txt)) |
| print "Modified version.cc. Set V8 version to %s" % version_txt |
| return 0 |
| |
| if __name__ == "__main__": |
| sys.exit(main()) |