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833e4192cd
As per the centithread on ksummit-discuss [1], there are folks who feel that if a Change-Id is present in a developer's local commit that said Change-Id could be interesting to include in upstream posts. Specifically if two commits are posted with the same Change-Id there's a reasonable chance that they are either the same commit or a newer version of the same commit. Specifically this is because that's how gerrit has trained people to work. There is much angst about Change-Id in upstream Linux, but one thing that seems safe and non-controversial is to include the Change-Id as part of the string of crud that makes up a Message-Id. Let's give that a try. In theory (if there is enough adoption) this could help a tool more reliably find various versions of a commit. This actually might work pretty well for U-Boot where (I believe) quite a number of developers use patman, so there could be critical mass (assuming that enough of these people also use a git hook that adds Change-Id to their commits). I was able to find this git hook by searching for "gerrit change id git hook" in my favorite search engine. In theory one could imagine something like this could be integrated into other tools, possibly even git-send-email. Getting it into patman seems like a sane first step, though. NOTE: this patch is being posted using a patman containing this patch, so you should be able to see the Message-Id of this patch and see that it contains my local Change-Id, which ends in 2b9 if you want to check. [1] https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2019-August/006739.html Signed-off-by: Douglas Anderson <dianders@chromium.org>
90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2011 The Chromium OS Authors.
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#
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import re
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# Separates a tag: at the beginning of the subject from the rest of it
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re_subject_tag = re.compile('([^:\s]*):\s*(.*)')
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class Commit:
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"""Holds information about a single commit/patch in the series.
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Args:
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hash: Commit hash (as a string)
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Variables:
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hash: Commit hash
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subject: Subject line
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tags: List of maintainer tag strings
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changes: Dict containing a list of changes (single line strings).
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The dict is indexed by change version (an integer)
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cc_list: List of people to aliases/emails to cc on this commit
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notes: List of lines in the commit (not series) notes
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change_id: the Change-Id: tag that was stripped from this commit
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and can be used to generate the Message-Id.
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"""
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def __init__(self, hash):
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self.hash = hash
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self.subject = None
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self.tags = []
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self.changes = {}
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self.cc_list = []
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self.signoff_set = set()
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self.notes = []
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self.change_id = None
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def AddChange(self, version, info):
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"""Add a new change line to the change list for a version.
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Args:
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version: Patch set version (integer: 1, 2, 3)
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info: Description of change in this version
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"""
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if not self.changes.get(version):
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self.changes[version] = []
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self.changes[version].append(info)
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def CheckTags(self):
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"""Create a list of subject tags in the commit
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Subject tags look like this:
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propounder: fort: Change the widget to propound correctly
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Here the tags are propounder and fort. Multiple tags are supported.
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The list is updated in self.tag.
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Returns:
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None if ok, else the name of a tag with no email alias
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"""
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str = self.subject
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m = True
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while m:
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m = re_subject_tag.match(str)
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if m:
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tag = m.group(1)
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self.tags.append(tag)
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str = m.group(2)
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return None
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def AddCc(self, cc_list):
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"""Add a list of people to Cc when we send this patch.
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Args:
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cc_list: List of aliases or email addresses
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"""
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self.cc_list += cc_list
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def CheckDuplicateSignoff(self, signoff):
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"""Check a list of signoffs we have send for this patch
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Args:
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signoff: Signoff line
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Returns:
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True if this signoff is new, False if we have already seen it.
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"""
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if signoff in self.signoff_set:
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return False
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self.signoff_set.add(signoff)
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return True
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