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<p class="MsoNormal">+1 to keeping “Reviewed by”. Whenever I’m fixing a bug in unfamiliar code, I look at both author and “reviewed by” from the history of that code to help pick reviewers for my change.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Joseph<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> llvm-dev <llvm-dev-bounces@lists.llvm.org> <b>On Behalf Of
</b>James Henderson via llvm-dev<br>
<b>Sent:</b> Thursday, January 2, 2020 9:57 AM<br>
<b>To:</b> David Blaikie <dblaikie@gmail.com><br>
<b>Cc:</b> llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Subject:</b> [EXTERNAL] Re: [llvm-dev] Delete Phabricator metadata tags before committing<o:p></o:p></p>
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<p class="MsoNormal">I also find the "Reviewed by" tag useful (as well as the review link), for the same reasons. In fact, I don't even use arcanist to push commits, so I do it all by hand, and only include the "Reviewed by" and "Differential Revision" tags.<o:p></o:p></p>
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<p class="MsoNormal">On Fri, 27 Dec 2019 at 20:55, David Blaikie via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">I don't think they're sufficiently problematic to worry about adding more steps people need to be aware of/follow to submit.<br>
<br>
Maybe more advisory "you can remove the unneeded tags" might not hurt (but still adds to the length of new contributor documentation, etc, which isn't free) - though "Reviewed By" is useful (in addition to "Differential Revision") if it accurately reflects
who reviewed/signed off on the change (makes it easy when I'm reading the mailing list to see who's already looked a patch over, etc).<o:p></o:p></p>
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<p class="MsoNormal">On Fri, Dec 27, 2019 at 12:48 PM Fangrui Song via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Many git commits in the monorepo look like the following:<br>
<br>
[Tag0][Tag1] Title line<br>
<br>
Summary:<br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque mauris neque, porta nec tristique at, sagittis vel nisi. Fusce pharetra nunc et mauris consequat venenatis.<br>
<br>
Reviewers: username0, username1<br>
<br>
Reviewed By: username0<br>
<br>
Subscribers: username2, username3, llvm-commits<br>
<br>
Tags: #llvm<br>
<br>
Differential Revision: <a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Freviews.llvm.org%2FDxxxxx&data=02%7C01%7Candya%40microsoft.com%7Cfa22dca30ad64a56b98508d78f940ec0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637135738379643383&sdata=Lv4bK2YjVOoLGvjhQ9dIA8o%2FZUzZKajpigs5J13Aaqk%3D&reserved=0" target="_blank">
https://reviews.llvm.org/Dxxxxx</a><br>
<br>
These Phabricator metadata lines (`Reviewers:`, `Reviewed By:`, etc) are created automatically when the author uploads the patch via `arc diff 'HEAD^'`.<br>
The summary and metadata can be copied from Phabricator to the local commit via `arc amend`.<br>
<br>
Among the metadata tags, `Differential Revision:` is the most useful one. It associates a commit with a Phabricator differential (Dxxxxx) and allows the differential to be closed automatically when the commit is pushed to llvm-project master.<br>
<br>
The other tags (Subscribers:, Reviewers:, Reviewed By:, Tags:, and the `Summary:` line) are not useful. They just clutter up the commit message. Shall we mention on
<a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fllvm.org%2Fdocs%2FDeveloperPolicy.html&data=02%7C01%7Candya%40microsoft.com%7Cfa22dca30ad64a56b98508d78f940ec0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637135738379653343&sdata=zmn0lZLOQnbXm80S2tuHysCIOg9wwLp%2FI7D7csRkhm0%3D&reserved=0" target="_blank">
https://llvm.org/docs/DeveloperPolicy.html</a> that developers are recommended to delete metadata tags before committing? It'd be nice if some pre-receive hooks can be set up to enforce deleting some really unnecessary metadata tags.<br>
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<p class="MsoNormal">_______________________________________________<br>
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<a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.llvm.org%2Fcgi-bin%2Fmailman%2Flistinfo%2Fllvm-dev&data=02%7C01%7Candya%40microsoft.com%7Cfa22dca30ad64a56b98508d78f940ec0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637135738379653343&sdata=93vOsnMq%2BdoDlnqp1ToMUy30H9cWCzd4bM2VUIj5CR0%3D&reserved=0" target="_blank">https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><o:p></o:p></p>
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