154 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			154 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python
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# Copyright (C) 2017 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Generates the text to paste into the email for announcing a new
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# release of Gerrit. The text is generated based on a template that
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# is filled with values either passed to the script or calculated
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# at runtime.
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#
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# The script outputs a plain text file with the announcement text:
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#
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#   release-announcement-gerrit-X.Y.txt
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#
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# and, if GPG is available, the announcement text wrapped with a
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# signature:
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#
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#   release-announcement-gerrit-X.Y.txt.asc
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#
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# Usage:
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#
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#   ./tools/release-announcement.py -v 2.14.2 -p 2.14.1 \
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#      -s "This release fixes several bugs since 2.14.1"
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#
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# Parameters:
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#
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#   --version (-v): The version of Gerrit being released.
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#
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#   --previous (-p): The previous version of Gerrit.  Optional. If
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#   specified, the generated text includes a link to the gitiles
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#   log of commits between the previous and new versions.
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#
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#   --summary (-s): Short summary of the release. Optional. When
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#   specified, the summary is inserted in the introductory sentence
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#   of the generated text.
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#
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# Prerequisites:
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#
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# - The Jinja2 python library [1] must be installed.
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#
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# - For GPG signing to work, the python-gnupg library [2] must be
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#   installed, and the ~/.gnupg folder must exist.
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#
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# - The war file must have been installed to the local Maven repository
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#   using the `./tools/mvn/api.sh war_install` command.
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#
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# [1] http://jinja.pocoo.org/
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# [2] http://pythonhosted.org/gnupg/
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from __future__ import print_function
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import argparse
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import hashlib
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import os
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import sys
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from gnupg import GPG
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from jinja2 import Template
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class Version:
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    def __init__(self, version):
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        self.version = version
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        parts = version.split('.')
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        if len(parts) > 2:
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            self.major = ".".join(parts[:2])
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            self.patch = version
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        else:
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            self.major = version
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            self.patch = None
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    def __str__(self):
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        return self.version
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def _main():
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    descr = 'Generate Gerrit release announcement email text'
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    parser = argparse.ArgumentParser(
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        description=descr,
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        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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    parser.add_argument('-v', '--version', dest='version',
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                        required=True,
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                        help='gerrit version to release')
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    parser.add_argument('-p', '--previous', dest='previous',
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                        help='previous gerrit version (optional)')
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    parser.add_argument('-s', '--summary', dest='summary',
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                        help='summary of the release content (optional)')
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    options = parser.parse_args()
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    summary = options.summary
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    if summary and not summary.endswith("."):
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        summary = summary + "."
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    data = {
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         "version": Version(options.version),
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         "previous": options.previous,
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         "summary": summary
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    }
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    war = os.path.join(
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        os.path.expanduser("~/.m2/repository/com/google/gerrit/gerrit-war/"),
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        "%(version)s/gerrit-war-%(version)s.war" % data)
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    if not os.path.isfile(war):
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        print("Could not find war file for Gerrit %s in local Maven repository"
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              % data["version"], file=sys.stderr)
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        sys.exit(1)
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    md5 = hashlib.md5()
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    sha1 = hashlib.sha1()
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    sha256 = hashlib.sha256()
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    BUF_SIZE = 65536  # Read data in 64kb chunks
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    with open(war, 'rb') as f:
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        while True:
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            d = f.read(BUF_SIZE)
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            if not d:
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                break
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            md5.update(d)
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            sha1.update(d)
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            sha256.update(d)
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    data["sha1"] = sha1.hexdigest()
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    data["sha256"] = sha256.hexdigest()
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    data["md5"] = md5.hexdigest()
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    template = Template(open("tools/release-announcement-template.txt").read())
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    output = template.render(data=data)
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    filename = "release-announcement-gerrit-%s.txt" % data["version"]
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    with open(filename, "w") as f:
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        f.write(output)
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    gpghome = os.path.abspath(os.path.expanduser("~/.gnupg"))
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    if not os.path.isdir(gpghome):
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        print("Skipping signing due to missing gnupg home folder")
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    else:
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        gpg = GPG(homedir=gpghome)
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        signed = gpg.sign(output)
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        filename = filename + ".asc"
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        with open(filename, "w") as f:
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            f.write(str(signed))
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if __name__ == "__main__":
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    _main()
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