Use macOS 15 for CI

[kelson42]

Move the whole CI to macOS 15, which implies updated compilation stack and full (botch arch+system) cross-compilation for x86_64 arch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.13%. Comparing base (c883006) to head (6f8d648).
⚠️ Report is 23 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #980   +/-   ##
=======================================
  Coverage   58.13%   58.13%           
=======================================
  Files         101      101           
  Lines        5384     5384           
  Branches     2197     2197           
=======================================
  Hits         3130     3130           
  Misses        795      795           
  Partials     1459     1459           

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[kelson42]

@rgaudin Any idea? Do we have a path problem? Or should we compile with Xcode16? https://github.com/openzim/libzim/actions/runs/15463093103/job/43528832086?pr=980#step:9:58

[rgaudin]

Message is pretty clear:

meson.build:1:0: ERROR: Unknown compiler(s): [['/Applications/Xcode_15.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang']]
The following exception(s) were encountered:
Running `/Applications/Xcode_15.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --version` gave "[Errno 2] No such file or directory: '/Applications/Xcode_15.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang'"

As you can see above, it's configured for Xcode_15.0.1 but macos-15 only includes Xcode 16.x.

This is I believe due to the previous step (Install dependencies). It downloads and uses https://tmp.kiwix.org/ci/deps_macos-aarch64-dyn_libzim.tar.gz which meson_cross_file.txt references that 15.0.1

[kelson42]

@rgaudin Does that means we need to move to Xcode 16 at kiwix/kiwix-build first?

[rgaudin]

I guess. I don't think this external dependencies behavior can work with different Xcode versions.

[kelson42]

Blocked by kiwix/kiwix-build#830

[kelson42]

@rgaudin Please let me know if something could be improved (or maybe just patch directly the PR) as this will be use to upgrade macOS CI for other projects.

[rgaudin]

LGTM ; seems to be working fine. I checked the deps archives and the logs. 👍