Unable to find Xcode version with latest GitHub Actions update

[NachoSoto]

The latest image added Xcode 16.3, and now for some reason this action can no longer find 16.3 or 16.2.

This is what ls -ad /Applications/Xcode* prints:

/Applications/Xcode_16.0.0.app /Applications/Xcode_16.0.app /Applications/Xcode_16.1.0.app /Applications/Xcode_16.1.app /Applications/Xcode_16.2.0.app /Applications/Xcode_16.2.app /Applications/Xcode_16.3.0.app /Applications/Xcode_16.3.app /Applications/Xcode_16.3_Release_Candidate_2.app /Applications/Xcode_16.app

However doing this:

- uses: mxcl/xcodebuild
  name: "Select Xcode"
  with:
    xcode: ~16.3 # Also fails with ~16.2
    action: none

Results in

Error: Error: No Xcode ~> >=16.3.0 <16.4.0-0

[NachoSoto]

I see internally it runs this:

mdfind kMDItemCFBundleIdentifier = com.apple.dt.Xcode

Which returns:

/Applications/Xcode_16.2.app
/Applications/Xcode_16.1.app
/Applications/Xcode_16.app
/Applications/Xcode_15.4.app

(For some reason 16.2 isn't found though)

[NachoSoto]

For some reason /usr/bin/mdfind kMDItemCFBundleIdentifier = com.apple.dt.Xcode when run by xcodebuild is not returning anything?

[NachoSoto]

I'm working around it by removing the xcode: parameter and calling sudo xcode-select --switch myself, but then xcodebuild fails with:

Error: The process '/usr/bin/mdls' failed with exit code 1

This is happening on the latest GitHub image:

Current runner version: '2.323.0'
Operating System
  macOS
  15.3.2
Runner Image
  Image: macos-15-arm64
  Version: 20250331.1175
  Included Software: https://github.com/actions/runner-images/blob/macos-15-arm64/20250331.1175/images/macos/macos-15-arm64-Readme.md
  Image Release: https://github.com/actions/runner-images/releases/tag/macos-15-arm64%2F20250331.1175

[NachoSoto]

I also opened actions/runner-images#11921

[mxcl]

We could fall back to a glob of /Application/Xcode*.app. This will work with the current way GitHub name Xcodes in that dir, but may fail in future. But it's a fallback so it's ok. On it.

[mxcl]

k no it's mdls that fails, so we can extract the version via regex instead

[mxcl]

Hopefully this works. It passed on a few macos-latest tests so I merged it and released v3.5.0. LMK if it works…

[NachoSoto]

Thanks that works great! :)

[NachoSoto]

Never mind, this actually still doesn't work on this image: 20250331.1175

Error: Error: No Xcode ~> >=16.2.0 <16.3.0-0

[mxcl]

hmm I'll take a look.

[NachoSoto]

FWIW GitHub recommended to use https://github.com/maxim-lobanov/setup-xcode which seems like it uses a much simpler approach