MacOS arm has no vcpkg pre-installed

[TrueBrain]

Description

All runner images have vcpkg preinstalled, including the non-arm runners of MacOS. But the arm ones do not. And I can't really find anything if that was a deliberately choice, or just an oversight.

So from my perspective, this is a bug. Upgrading a macos-latest to macos-14 causes build failures on my side, as vcpkg is missing. But if we install vcpkg manually it works just fine.

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 20.04
• Ubuntu 22.04
• macOS 11
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• Windows Server 2019
• Windows Server 2022

Image version and build link

  Image: macos-14-arm64
  Version: 20240116.1

Is it regression?

Against macos-latest, yes. Otherwise, no.

Expected behavior

Have vcpkg installed on all images; not all except 2.

Actual behavior

No vcpkg installed on arm images

Repro steps

Create a workflow that uses CMake with vcpkg.
Run CMake with any other image: works fine.
Run CMake with arm images:

     Could not find toolchain file:
    /usr/local/share/vcpkg/scripts/buildsystems/vcpkg.cmake

Did not test, but given vcpkg is not listed here, it is reasonable to think you also can't use vcpkg from a bash step.

[MaksimZhukov]

Hello @TrueBrain!
This is an expected behaviour. It has been decided not to bake vcpkg into the image due to maintenance concerns and relatively short installation time. Please continue installing in runtime.

[TrueBrain]

Tnx for the reply! Am I right to assume other new images, like ubuntu etc, as they arrive, will also not have vcpkg? Just so we can plan ahead :)

Tnx!