modern macOS X (10.13, 14, 15) on MacStadium

[rvagg]

Current proposal is for Node.js 12 to be built on macOS 10.13 but we don't have MacStadium machines for it yet. This isn't final yet, we'll need to track the discussion about macOS minimum support but having 10.13 in our mix would be a positive anyway.

We will also probably need to change

'MACOSX_DEPLOYMENT_TARGET': '10.7',       # -mmacosx-version-min=10.7

in common.gypi to reflect a new minimum. Maybe 10.11.

[mhdawson]

@refack have you started working on this?

[refack]

yes.

[mhdawson]

:)

[mhdawson]

I don't see any new 10.13 machines in mac stadium, I guess that's your next step?

[mhdawson]

As an FYI, you may need to spin down the 10.08 machines in order to have enough disk space to create the 10.13 ones

[rvagg]

there's a 10.14 one in there too, I guess that's removable? maybe an experiment?

[mhdawson]

I believe we created that earlier but then found there was no 10.14 image. We might want to finish that so we get 10.14 testing as I think there might now be one. But if necessary for space it is removable.

[rvagg]

As I stated in nodejs/node#26714 (comment) I've rolled back the changes to BUILDING.md to reflect the state of Node 11's macOS support, with the addition of -mmacosx-version-min=10.10 which has been merged.

I see no evidence of movement on the 10.13 front and it seems too late to me with only a few days to go before 12. I need to get BUILDING.md merged so if anyone's going to take responsibility for changing things at this late stage then you'll have to work on additional BUILDING.md changes.

[refack]

I've been digging on this from several directions. tl;dr it seems like the only way to install 10.13 and/or 10.14 is to upgrade the ESXi server.
It should be doable remotely, but in case of failure we might have no machines until we get MacStadium support to assist.

[refack]

But we do have 10.12 machines ready https://ci.nodejs.org/label/osx1012/

[rvagg]

not for release

[mhdawson]

@refack can you clarify why an ESXi server upgrade is needed?