From: Junio C Hamano <gitster@pobox.com>
To: Lars Schneider <larsxschneider@gmail.com>
Cc: git@vger.kernel.org, Michael J Gruber <git@drmicha.warpmail.net>
Subject: Re: [PATCH 2/2] name-rev: favor describing with tags and use committer date to tiebreak
Date: Thu, 16 Mar 2017 22:56:22 -0700 [thread overview]
Message-ID: <xmqqshmc8n09.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <xmqqy3w48nif.fsf@gitster.mtv.corp.google.com> (Junio C. Hamano's message of "Thu, 16 Mar 2017 22:45:28 -0700")
Junio C Hamano <gitster@pobox.com> writes:
> Lars Schneider <larsxschneider@gmail.com> writes:
>
>> A quick bisect indicates that this patch might break
>> t9807-git-p4-submit.sh 8 and 13. I haven't looked into
>> it further, yet.
>
> As I do not do P4, help in diagnosing why it breaks is appreciated.
> If the test script expects...
> On the other hand, if git-p4 command internally uses name-rev and it
> is not prepared to properly handle commits that can be named in more
> than one way, the problem would be deeper, as it would mean it can
> misbehave even without the change to name-rev when multiple branches
> point at the same commit.
Yikes. Perhaps something along this line?
This function seems to want to learn which branch we are on, and
running "name-rev HEAD" is *NEVER* the right way to do so. If you
are on branch B which happens to point at the same commit as branch
A, "name-rev HEAD" can say either A or B (and it is likely it would
say A simply because it sorts earlier, and the logic seems to favor
the one that was discovered earlier when all else being equal).
git-p4.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/git-p4.py b/git-p4.py
index eab319d76e..351d1ab58e 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -582,7 +582,7 @@ def currentGitBranch():
# on a detached head
return None
else:
- return read_pipe(["git", "name-rev", "HEAD"]).split(" ")[1].strip()
+ return read_pipe(["git", "symbolic-ref", "HEAD"]).strip()[11:]
def isValidGitDir(path):
return git_dir(path) != None
next prev parent reply other threads:[~2017-03-17 5:57 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-15 13:15 [PATCH 0/3] describe --contains sanity Michael J Gruber
2017-03-15 13:15 ` [PATCH 1/3] describe: debug is incompatible with contains Michael J Gruber
2017-03-15 19:21 ` Junio C Hamano
2017-03-17 10:54 ` Michael J Gruber
2017-03-15 13:15 ` [PATCH 2/3] git-prompt: add a describe style for any tags Michael J Gruber
2017-03-15 19:25 ` Junio C Hamano
2017-03-17 10:56 ` Michael J Gruber
2017-03-15 13:15 ` [RFD PATCH 3/3] name-rev: Allow lightweight tags and branch refs Michael J Gruber
2017-03-15 16:14 ` Junio C Hamano
2017-03-15 19:50 ` Junio C Hamano
2017-03-15 20:51 ` Junio C Hamano
2017-03-15 22:50 ` [PATCH 0/2] Teach name-rev to pay more attention to lightweight tags Junio C Hamano
2017-03-15 22:50 ` [PATCH 1/2] name-rev: refactor logic to see if a new candidate is a better name Junio C Hamano
2017-03-15 22:50 ` [PATCH 2/2] name-rev: favor describing with tags and use committer date to tiebreak Junio C Hamano
2017-03-17 4:07 ` Lars Schneider
2017-03-17 5:45 ` Junio C Hamano
2017-03-17 5:56 ` Junio C Hamano [this message]
2017-03-17 17:09 ` Lars Schneider
2017-03-17 17:17 ` Junio C Hamano
2017-03-17 22:43 ` Junio C Hamano
2017-03-29 14:39 ` [PATCH v2 0/3] name-rev sanity Michael J Gruber
2017-03-29 14:39 ` [PATCH v2 1/3] name-rev: refactor logic to see if a new candidate is a better name Michael J Gruber
2017-03-29 14:39 ` [PATCH v2 2/3] name-rev: favor describing with tags and use committer date to tiebreak Michael J Gruber
2017-03-29 14:39 ` [PATCH v2 3/3] name-rev: provide debug output Michael J Gruber
2017-03-29 17:15 ` [PATCH v2 0/3] name-rev sanity Junio C Hamano
2017-03-29 17:43 ` Junio C Hamano
2017-03-30 13:48 ` Michael J Gruber
2017-03-30 17:30 ` Junio C Hamano
2017-03-31 13:51 ` [PATCH v3 0/4] " Michael J Gruber
2017-03-31 13:51 ` [PATCH v3 1/4] name-rev: refactor logic to see if a new candidate is a better name Michael J Gruber
2017-03-31 13:51 ` [PATCH v3 2/4] name-rev: favor describing with tags and use committer date to tiebreak Michael J Gruber
2017-03-31 13:51 ` [PATCH v3 3/4] name-rev: provide debug output Michael J Gruber
2017-03-31 16:52 ` Junio C Hamano
2017-03-31 16:55 ` Junio C Hamano
2017-03-31 18:02 ` Michael J Gruber
2017-03-31 18:06 ` Junio C Hamano
2017-03-31 18:33 ` Junio C Hamano
2017-04-03 14:46 ` Michael J Gruber
2017-04-03 17:07 ` Junio C Hamano
2017-05-20 5:19 ` Junio C Hamano
2017-03-31 19:10 ` Junio C Hamano
2017-03-31 13:51 ` [PATCH v3 4/4] describe: pass --debug down to name-rev Michael J Gruber
2017-03-17 11:25 ` [PATCH 2/2] name-rev: favor describing with tags and use committer date to tiebreak Michael J Gruber
2017-03-17 16:03 ` Junio C Hamano
2017-03-16 0:14 ` [PATCH 0/2] Teach name-rev to pay more attention to lightweight tags Stefan Beller
2017-03-16 10:28 ` Jacob Keller
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