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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I could see wanting to compare data from master and a release branch. If that means sequential IDs need to work across branches, then we're back to needing
a fancier solution than 'rev-list –count'.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">--paulr<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> llvm-dev [mailto:llvm-dev-bounces@lists.llvm.org]
<b>On Behalf Of </b>Chris Matthews via llvm-dev<br>
<b>Sent:</b> Thursday, July 07, 2016 5:56 PM<br>
<b>To:</b> Renato Golin via llvm-foundation; Renato Golin; Mehdi Amini<br>
<b>Cc:</b> LLVM Dev; llvm-foundation@lists.llvm.org; Clang Dev; LLDB Dev<br>
<b>Subject:</b> Re: [llvm-dev] [llvm-foundation] Sequential ID Git hook<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">Sequential IDs are important for LNT and llvmlab bisection tool.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">LNT uses the “order” to capture the measured software changes. LNT does make the assumption that orders are unique, so if a ID was the same on two branches, LNT would
assume that is the same change. If you never want to compare data between branches, storing each branch in a different database solves that problem, but sometimes you do want to directly compare runs in two branches.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">With both llvmlab and LNT, once you get to a range of IDs, it is needs to be easy to find out what commits or commit range those IDs map to. When given regression between
123 and 225, I need the list of commits, and I don’t want to log grep for those numbers. Ideally it should also easy for those tools to link to a revision on a webUI like viewvc. <o:p></o:p></span></p>
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<p class="airmailon"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">On July 5, 2016 at 4:04:05 PM, Renato Golin via llvm-foundation (<a href="mailto:llvm-foundation@lists.llvm.org">llvm-foundation@lists.llvm.org</a>) wrote:<o:p></o:p></span></p>
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<p><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif""><br>
On 5 Jul 2016 10:45 p.m., "Mehdi Amini" <<a href="mailto:mehdi.amini@apple.com">mehdi.amini@apple.com</a>> wrote:<br>
><br>
><br>
> > On Jul 5, 2016, at 3:44 AM, Renato Golin via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<br>
> ><br>
> > Quick re-cap.<br>
> ><br>
> > After a few rounds, not only the "external server" proposal got<br>
> > obliterated as totally unnecessary, but the idea that we may even need<br>
> > a hook at all is now challenged.<br>
><br>
> This is not clear to me.<br>
> How is the umbrella repository updated?<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">Sorry, I meant no hooks for updating sequential ids. We still need a hook to update the umbrella project.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">Cheers,<br>
Renato<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
llvm-foundation mailing list<br>
<a href="mailto:llvm-foundation@lists.llvm.org">llvm-foundation@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-foundation">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-foundation</a><o:p></o:p></span></p>
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