Added trivial_rebase script.
This commit is contained in:
Jeremy Stanley
Monty Taylor
parent
a140e1a13e
commit
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#!/usr/bin/env python2.6
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# Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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# # Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# # Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# # Neither the name of Code Aurora Forum, Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# This script is designed to detect when a patchset uploaded to Gerrit is
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# 'identical' (determined via git-patch-id) and reapply reviews onto the new
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# patchset from the previous patchset.
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# Get usage and help info by running: ./trivial_rebase.py --help
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# Documentation is available here: https://www.codeaurora.org/xwiki/bin/QAEP/Gerrit
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import json
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import subprocess
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from sys import exit
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from optparse import OptionParser as _realOptionParser, AmbiguousOptionError, \
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BadOptionError
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class OptionParser(_realOptionParser):
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"""Make OptionParser silently swallow unrecognized options."""
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def _process_args(self, largs, rargs, values):
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while rargs:
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try:
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_realOptionParser._process_args(self, largs, rargs, values)
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except (AmbiguousOptionError, BadOptionError), e:
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largs.append(e.opt_str)
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class CheckCallError(OSError):
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"""CheckCall() returned non-0."""
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def __init__(self, command, cwd, retcode, stdout, stderr=None):
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OSError.__init__(self, command, cwd, retcode, stdout, stderr)
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self.command = command
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self.cwd = cwd
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self.retcode = retcode
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self.stdout = stdout
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self.stderr = stderr
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def CheckCall(command, cwd=None):
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"""Like subprocess.check_call() but returns stdout.
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Works on python 2.4
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"""
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try:
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process = subprocess.Popen(command, cwd=cwd, stdout=subprocess.PIPE)
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std_out, std_err = process.communicate()
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except OSError, e:
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raise CheckCallError(command, cwd, e.errno, None)
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if process.returncode:
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raise CheckCallError(command, cwd, process.returncode, std_out, std_err)
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return std_out, std_err
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def Gssh(options, api_command):
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"""Makes a Gerrit API call via SSH and returns the stdout results."""
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ssh_cmd = ['ssh',
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'-l', 'Gerrit Code Review',
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'-p', options.port,
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'-i', options.private_key_path,
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options.server,
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api_command]
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try:
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return CheckCall(ssh_cmd)[0]
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except CheckCallError, e:
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import sys
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err_template = "call: %s\nreturn code: %s\nstdout: %s\nstderr: %s\n"
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sys.stderr.write(err_template%(ssh_cmd, e.retcode, e.stdout, e.stderr))
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raise
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def GsqlQuery(sql_query, options):
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"""Runs a gerrit gsql query and returns the result"""
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gsql_cmd = "gerrit gsql --format JSON -c %s"%sql_query
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gsql_out = Gssh(options, gsql_cmd)
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new_out = gsql_out.replace('}}\n', '}}\nsplit here\n')
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return new_out.split('split here\n')
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def FindPrevRev(options):
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"""Finds the revision of the previous patch set on the change"""
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sql_query = ("\"SELECT revision FROM patch_sets,changes WHERE "
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"patch_sets.change_id = changes.change_id AND "
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"patch_sets.patch_set_id = %s AND "
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"changes.change_key = \'%s\'\"" % ((options.patchset - 1),
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options.changeId))
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revisions = GsqlQuery(sql_query, options)
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json_dict = json.loads(revisions[0], strict=False)
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return json_dict["columns"]["revision"]
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def GetApprovals(options):
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"""Get all the approvals on a specific patch set
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Returns a list of approval dicts"""
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sql_query = ("\"SELECT value,account_id,category_id FROM patch_set_approvals "
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"WHERE patch_set_id = %s AND change_id = (SELECT change_id FROM "
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"changes WHERE change_key = \'%s\') AND value <> 0\""
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% ((options.patchset - 1), options.changeId))
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gsql_out = GsqlQuery(sql_query, options)
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approvals = []
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for json_str in gsql_out:
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dict = json.loads(json_str, strict=False)
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if dict["type"] == "row":
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approvals.append(dict["columns"])
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return approvals
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def GetPatchId(revision, consider_whitespace=False):
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git_show_cmd = ['git', 'show', revision]
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patch_id_cmd = ['git', 'patch-id']
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patch_id_process = subprocess.Popen(patch_id_cmd, stdout=subprocess.PIPE,
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stdin=subprocess.PIPE)
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git_show_process = subprocess.Popen(git_show_cmd, stdout=subprocess.PIPE)
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if consider_whitespace:
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# This matches on change lines in the patch (those starting with "+"
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# or "-" but not followed by another of the same), then replaces any
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# space or tab characters with "%" before calculating a patch-id.
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replace_ws_cmd = ['sed', r'/^\(+[^+]\|-[^-]\)/y/ \t/%%/']
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replace_ws_process = subprocess.Popen(replace_ws_cmd,
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stdout=subprocess.PIPE,
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stdin=subprocess.PIPE)
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return patch_id_process.communicate(
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replace_ws_process.communicate(git_show_process.communicate()[0])[0]
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)[0]
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else:
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return patch_id_process.communicate(git_show_process.communicate()[0])[0]
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def SuExec(options, as_user, cmd):
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suexec_cmd = "suexec --as %s -- %s"%(as_user, cmd)
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Gssh(options, suexec_cmd)
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def DiffCommitMessages(commit1, commit2):
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log_cmd1 = ['git', 'log', '--pretty=format:"%an %ae%n%s%n%b"',
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commit1 + '^!']
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commit1_log = CheckCall(log_cmd1)
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log_cmd2 = ['git', 'log', '--pretty=format:"%an %ae%n%s%n%b"',
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commit2 + '^!']
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commit2_log = CheckCall(log_cmd2)
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if commit1_log != commit2_log:
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return True
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return False
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def main():
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usage = "usage: %prog <required options> [optional options]"
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parser = OptionParser(usage=usage)
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parser.add_option("--change", dest="changeId", help="Change identifier")
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parser.add_option("--project", help="Project path in Gerrit")
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parser.add_option("--commit", help="Git commit-ish for this patchset")
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parser.add_option("--patchset", type="int", help="The patchset number")
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parser.add_option("--role-user", dest="role_user",
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help="E-mail/ID of user commenting on commit messages")
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parser.add_option("--private-key-path", dest="private_key_path",
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help="Full path to Gerrit SSH daemon's private host key")
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parser.add_option("--server-port", dest="port", default='29418',
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help="Port to connect to Gerrit's SSH daemon "
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"[default: %default]")
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parser.add_option("--server", dest="server", default="localhost",
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help="Server name/address for Gerrit's SSH daemon "
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"[default: %default]")
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parser.add_option("--whitespace", action="store_true",
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help="Treat whitespace as significant")
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(options, args) = parser.parse_args()
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if not options.changeId:
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parser.print_help()
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exit(0)
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if options.patchset == 1:
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# Nothing to detect on first patchset
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exit(0)
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prev_revision = None
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prev_revision = FindPrevRev(options)
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if not prev_revision:
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# Couldn't find a previous revision
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exit(0)
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prev_patch_id = GetPatchId(prev_revision)
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cur_patch_id = GetPatchId(options.commit)
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if cur_patch_id.split()[0] != prev_patch_id.split()[0]:
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# patch-ids don't match
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exit(0)
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# Patch ids match. This is a trivial rebase.
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# In addition to patch-id we should check if whitespace content changed. Some
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# languages are more sensitive to whitespace than others, and some changes
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# may either introduce or be intended to fix style problems specifically
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# involving whitespace as well.
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if options.whitespace:
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prev_patch_ws = GetPatchId(prev_revision, consider_whitespace=True)
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cur_patch_ws = GetPatchId(options.commit, consider_whitespace=True)
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if cur_patch_ws.split()[0] != prev_patch_ws.split()[0]:
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# Insert a comment into the change letting the approvers know only the
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# whitespace changed
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comment_msg = "\"New patchset patch-id matches previous patchset, " \
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"but whitespace content has changed.\""
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comment_cmd = ['gerrit', 'approve', '--project', options.project,
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'--message', comment_msg, options.commit]
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SuExec(options, options.role_user, ' '.join(comment_cmd))
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exit(0)
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# We should also check if the commit message changed. Most approvers would
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# want to re-review changes when the commit message changes.
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changed = DiffCommitMessages(prev_revision, options.commit)
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if changed:
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# Insert a comment into the change letting the approvers know only the
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# commit message changed
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comment_msg = "\"New patchset patch-id matches previous patchset, " \
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"but commit message has changed.\""
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comment_cmd = ['gerrit', 'approve', '--project', options.project,
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'--message', comment_msg, options.commit]
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SuExec(options, options.role_user, ' '.join(comment_cmd))
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exit(0)
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# Need to get all approvals on prior patch set, then suexec them onto
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# this patchset.
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approvals = GetApprovals(options)
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gerrit_approve_msg = ("\'Automatically re-added by Gerrit trivial rebase "
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"detection script.\'")
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for approval in approvals:
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# Note: Sites with different 'copy_min_score' values in the
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# approval_categories DB table might want different behavior here.
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# Additional categories should also be added if desired.
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if approval["category_id"] == "CRVW":
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approve_category = '--code-review'
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elif approval["category_id"] == "VRIF":
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# Don't re-add verifies
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#approve_category = '--verified'
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continue
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elif approval["category_id"] == "SUBM":
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# We don't care about previous submit attempts
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continue
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elif approval["category_id"] == "APRV":
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# Similarly squash old approvals
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continue
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else:
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print "Unsupported category: %s" % approval
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exit(0)
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score = approval["value"]
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gerrit_approve_cmd = ['gerrit', 'approve', '--project', options.project,
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'--message', gerrit_approve_msg, approve_category,
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score, options.commit]
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SuExec(options, approval["account_id"], ' '.join(gerrit_approve_cmd))
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exit(0)
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1
setup.py
1
setup.py
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@ -61,6 +61,7 @@ setuptools.setup(
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'notify-impact=gerritx.cmd.notify_impact:main',
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'process-cache=gerritx.cmd.process_cache:main',
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'run-mirror=gerritx.cmd.run_mirror:main',
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'trivial-rebase=gerritx.cmd.trivial_rebase:main',
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'update-blueprint=gerritx.cmd.update_blueprint:main',
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'update-bug=gerritx.cmd.update_bug:main',
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],
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