ci: parallelize xcframework slice builds

[armcknight]

The job to build the xcframework builds all the slices in serial, which takes upwards of 30 minutes. There are at least 6 slices, so if we parallelize these, we should be able to cut that time down to a small fraction.

Before: 30 minutes 52 seconds
After: 6 minutes 17 seconds

One thing I noticed but haven't yet addressed is that the SentrySwiftUI build actually produced Sentry.xcframework as well, because to archive the SentrySwiftUI target, Sentry target must be built as well as it's a dependency. So, we could avoid the duplicated tasks with some tweaks to the workflow logic. I just haven't figured out how to do that yet.

Another future task could be caching individual slices and assembled variants, as not all will always need to be rebuilt (think, if uikit code is modified, then the UIKitless variant won't need to be rebuilt).

#skip-changelog

Fixes GH-4925

[philipphofmann]

That would be super nice to get done. Thanks for starting this @armcknight.

[armcknight]

Got the slices all building in parallel, working on downloading the artifacts for assembly together. It's looking like the total job time will be around 5-6 minutes now based on https://github.com/getsentry/sentry-cocoa/actions/runs/15080146739

[armcknight]

Fiiiiinally got all the things in the right path locations to get it all passing again. Final result: 6m17s.

[armcknight]

The only CI checks I validated were in the workflow build-xcframework.yml. The failing tests are due to having removed the old build-xcframework.sh script but not yet updating benchmarking.yml or ui-tests.yml to use the new reusable workflows that parallelize the steps from it; #5277 fixes that and should be merged into this branch before merging this one to main.

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1227.00 ms	1249.88 ms	22.88 ms
Size	23.75 KiB	844.03 KiB	820.28 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
e4cc043	1230.10 ms	1254.36 ms	24.26 ms
103d817	1211.55 ms	1213.35 ms	1.80 ms
983de17	1260.57 ms	1263.68 ms	3.11 ms
e070f8a	1236.47 ms	1250.50 ms	14.03 ms
afce5bf	1199.94 ms	1213.27 ms	13.33 ms
b9b0f0a	1257.22 ms	1262.57 ms	5.35 ms
60bfc91	1251.29 ms	1261.67 ms	10.39 ms
3fc6a6f	1241.96 ms	1254.13 ms	12.17 ms
6e625c5	1243.47 ms	1243.58 ms	0.11 ms
2deb275	1228.20 ms	1245.02 ms	16.82 ms

App size

Revision	Plain	With Sentry	Diff
e4cc043	22.85 KiB	414.92 KiB	392.07 KiB
103d817	21.58 KiB	571.91 KiB	550.33 KiB
983de17	22.84 KiB	403.19 KiB	380.34 KiB
e070f8a	21.58 KiB	546.20 KiB	524.62 KiB
afce5bf	21.58 KiB	542.18 KiB	520.60 KiB
b9b0f0a	20.76 KiB	434.94 KiB	414.17 KiB
60bfc91	20.76 KiB	434.94 KiB	414.18 KiB
3fc6a6f	22.30 KiB	821.37 KiB	799.07 KiB
6e625c5	22.85 KiB	413.41 KiB	390.56 KiB
2deb275	21.58 KiB	681.72 KiB	660.14 KiB

Previous results on branch: armcknight/ci/parallelize-xcframework-build

Startup times

Revision	Plain	With Sentry	Diff
df6b0fb	1228.02 ms	1262.15 ms	34.12 ms
561986c	1207.55 ms	1228.81 ms	21.26 ms
7865e6e	1233.12 ms	1255.29 ms	22.16 ms
ff09fb1	1222.22 ms	1251.30 ms	29.07 ms
cd452df	1229.82 ms	1254.49 ms	24.67 ms
abb8f1a	1232.08 ms	1245.48 ms	13.40 ms

App size

Revision	Plain	With Sentry	Diff
df6b0fb	23.75 KiB	840.53 KiB	816.78 KiB
561986c	23.76 KiB	824.89 KiB	801.13 KiB
7865e6e	23.75 KiB	843.50 KiB	819.75 KiB
ff09fb1	23.75 KiB	844.04 KiB	820.29 KiB
cd452df	23.76 KiB	824.89 KiB	801.13 KiB
abb8f1a	23.76 KiB	824.89 KiB	801.13 KiB

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.031%. Comparing base (51de0c8) to head (9c616f0).
Report is 2 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #5218       +/-   ##
=============================================
- Coverage   86.061%   86.031%   -0.031%     
=============================================
  Files          397       397               
  Lines        34588     34592        +4     
  Branches     14990     14988        -2     
=============================================
- Hits         29767     29760        -7     
- Misses        4777      4790       +13     
+ Partials        44        42        -2     

see 13 files with indirect coverage changes

---

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[armcknight]

We looked at the difference in the macosx slice's size and discovered that the upload artifact action zips up the files and in the process resolves symlinks, so was duplicating things. We are instead ditto-ing the files before uploading them.

[armcknight]

Fixed the remaining symlink issues.

Manually tested Sentry-Dynamic, Sentry (static) and SentrySwiftUI in a test project for each platform, including mac catalyst.

[armcknight]

Also I realized that now that release.yml would run most of its jobs in PRs, it would duplicate the build in build-xcframework.yml. Also, in releases, build-xcframework.yml would still run. So, I moved everything into release.yml in 45e2a9e

[armcknight]

i've locally validated with the integration tests in #5384 that each kind of app and package manager can correctly link each type of SDK variant.