[llvm-dev] [cfe-dev] Phabricator Maintenance

[Zachary Turner via llvm-dev]

On Thu, Jun 25, 2020 at 2:43 AM Nikita Popov <nikita.ppv at gmail.com> wrote:

> On Thu, Jun 25, 2020 at 11:22 AM Zachary Turner via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> I can’t really provide a doc, but i can describe what I believe to be the
>> biggest problem.
>>
>> In a GH PR, comments are associated with commit hashes.  If a commit hash
>> ceases to exist, so do all comments associated with it.  The comments are
>> quite literally destroyed and irretrievable.
>>
>
> Either I'm misunderstand something, or this is just blatantly incorrect.
> Assuming we're talking about pull request reviews here, review comments do
> not get lost, regardless of how you rebase the pull request branch.
>
Try this experiment:

1. Create a PR
2. Have someone leave a comment on a line of code.  You should get an email.
3. Make another change locally and squash it
4. git push -f
5. Go to your email and click the link for the comment that was made in
step 2.

GH should tell you that the comment does not exist.

Now that i think about it, the comment is probably still visible in the web
ui by clicking “Show Outdated”.  But you cannot see the code that was
requested to be changed.  That comment has a link associated with it, and
if you click that link you just get “the commit does not exist”

>
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