Re: Git Bug Report: bisect run failed to locate the right commit

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Hi,

On Wed, Aug 27, 2014 at 3:42 PM, 李祐棠 <r01942008@xxxxxxxxxx> wrote:
> Dear Git developers:
>
> I just found a suspicious bug that might cause by git-bisect run.
>
> Version:
> The git version is 1.9.2, running on Archlinux 3.14.2
>
> The step to produce the error:
> Here is the repository I participate:
> https://github.com/gawel/pyquery
>
> It got a issue #74, that gives a wrong result in version 1.2.8
> and this is fixed in 1.2.9
>
> Here is the manual test script I use is "manualscript.py":
>
> I use git bisect manually, search from 1.2.9(bad) to 1.2.8(good), I locate the commit that fixes this issue. The running log is attached in this file(manual).
>
> However if I use the automatic script
> git bisect run
> with the script "auto script":
>
> It will give a wrong answer, the log file is also attached(auto)

Your "manual" log contains:

Bisecting: 0 revisions left to test after this (roughly 1 step)
[300cd0822505a4bd308acd1520ff3ef0f20f8635] fixed issue #19
$ ./manualscript.py
False
False

While your "auto" log contains:

Bisecting: 0 revisions left to test after this (roughly 1 step)
[300cd0822505a4bd308acd1520ff3ef0f20f8635] fixed issue #19
running ./autoscript.py
False
True

So for the commit 300cd0822505a4bd308acd1520ff3ef0f20f8635 it looks
like your manualscript.py and your autoscript.py don't return the same
result.

Could you check that by doing something like:

$ git checkout -b testscripts 300cd0822505a4bd308acd1520ff3ef0f20f8635
$ ./manualscript.py
$ echo "manualscript.py exit code: $?"
$ ./autoscript.py
$ echo "autoscript.py exit code: $?"

?

By the way you can get a better bisect log by running "git bisect log"
after your bisection.

Best,
Christian.
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