Codex/multi profile by tifroz · Pull Request #41 · skiptools/skip-web

tifroz · 2026-03-12T18:13:36Z

Added first-class WebProfile support (.default / .named(String)) and WebProfileError handling across WebEngineConfiguration and runtime operations.
Implemented per-profile storage behavior:
- iOS: named profiles map to dedicated WKWebsiteDataStore instances.
- Android: named profiles use AndroidX WebKit multi-profile APIs with runtime gating (MULTI_PROFILE) and explicit failure when unsupported/invalid (no silent fallback).
Spawned children inherit the parent profile by default

Skip Pull Request Checklist:

REQUIRED: I have signed the Contributor Agreement
REQUIRED: I have tested my change locally with swift test
OPTIONAL: I have tested my change on an iOS simulator or device
OPTIONAL: I have tested my change on an Android emulator or device

AI was used to generate or assist with generating this PR. Please specify below how you used AI to help you, and what steps you have taken to manually verify the changes.

Codex-generated code under supervision, tested from a native sandbox app on iOS + Android

tifroz · 2026-03-13T17:31:48Z

@marcprux I keep running into either one of these 2 issues - I am not well-versed in GitHub Action environments, but it does seem like an issue with the test environment, not a problem with the test code or feature code.

It looks like it might a fluke, maybe running into quotas or just the GH infrastructure being overtaxed? I gave it a rest overnight, but same behavior this morning

Specifically:

Test iOS
The requested device could not be found because no available devices matched the request.

Cache Android emulator snapshot
Error: Timeout waiting for emulator to boot.

marcprux · 2026-03-13T17:51:05Z

The requested device could not be found because no available devices matched the request.

This is a rather notorious intermittent issue with running tests in GitHub actions. It has always been a problem, but it recently started occurring more frequently. My solution has always been to just re-run the CI job (or issue a bogus commit to trigger the CI again in the case of a PR where you don't have permission to re-start it).

As it happens, I've found that simple running xcrun simctl list devices available before trying to run the iOS tests can often (always?) mitigate the issue, and this is included in a current outstanding PR (skiptools/actions#8) for the workflow: https://github.com/skiptools/actions/pull/8/changes#diff-89d228b0889c90902b8b3456f645db037183620fd7db4905984e67eab976a7b0R160

…but it needs a bit more work before it can be merged (since it includes some other improvements).

So for the time being, I'm afraid you'll just need to re-run the CI when you hit that particular glitch 🫤

tifroz · 2026-03-14T21:44:01Z

Does the Android environment error fall into the same "just retry" category? (Error: Timeout waiting for emulator to boot.)

I have force-run the CI test a dozen times over the last couple of days, but fell into the Android environment error every time I am lucky enough to escape the iOS environment issue curse (every ~4 attempts).

Meanwhile the main branch CI Action completed successfully 3 times out of 4 in the same timeframe - which would suggest there is something different about the PR branch CI environment?

Really baffling :( I'd welcome any insight

tifroz · 2026-03-16T18:53:35Z

@marcprux The original iOS + Android environment errors are no longer affecting the CI environment (at least for now), but I am now consistently hitting a hardware compatibility issue in the Android CI environment (HVF error: HV_UNSUPPORTED see below).

To my knowledge there is nothing in the new code that would have this effect? I have limited understanding of how hardware selection works in the GH Actions, but this really looks like an Action issue

I looked at the logs for the scheduled CI Action running on main: it is using a cached emulator image, while the CI Action for my PR is trying to spawn a new emulator from scratch and hitting this issue. So at least in this respect they are following completely different paths

...
emulator-28-medium_phone
[✓] List available AVDs (0.03s)
note: launching tool:  /Users/runner/Library/Android/sdk/emulator/emulator @emulator-28-medium_phone -no-metrics -no-window -no-boot-anim -logcat *:D
INFO         | Android emulator version 36.4.10.0 (build_id 15004761) (CL:N/A)
INFO         | Graphics backend: gfxstream
INFO         | Found systemPath /Users/runner/Library/Android/sdk/system-images/android-28/google_apis/arm64-v8a/
HVF error: HV_UNSUPPORTED
qemu-system-aarch64-headless: failed to initialize HVF: Invalid argument
Error: signalled(9): /Users/runner/Library/Android/sdk/emulator/emulator @emulator-28-medium_phone -no-metrics -no-window -no-boot-anim -logcat *:D output:

marcprux · 2026-03-16T21:41:06Z

Yeah, this is a new issue we're hitting since I updated (skiptools/actions#8) the workflow actions to use the new skip android emulator create/launch commands added in skiptools/skip#574 (and with follow-ups in skiptools/skipstone#194 and skiptools/skipstone#200).

I was too hasty in merging that and making it the default runner mode. I just reverted back to using the older ReactiveCircus launcher (which has its own set of issues, but at least is more mature and stable) and made a new release v1.6.13 of the actions, so your next push should at least use the more stable runner for testing. Let me know if you continue running into the errors.

Sorry for the trouble; I know it can be frustrating to run into CI issues like this.

marcprux

This is looking good! Once we manage to get CI to pass, I'll go ahead and merge.

marcprux · 2026-03-17T20:23:52Z

Sources/SkipWeb/WebEngine.swift

+        }
+    }
+
+    @MainActor private func webKitDataStoreIdentifier(for identifier: String) -> UUID? {


Can you explain this? Is there some reason the identified needs to go from a String to a SHA1 hash to a fixed UUID? Is this just to derive a deterministic UUID from the String identifier?

Just to derive a deterministic UUID from the String identifier.

If I remember correctly there was a little bit gymnastics required because the UUID is not bridge-friendly but the required identifier type for iOS's WKWebsiteDataStore

…g androidTest Added a Kotlin @BeforeClass hook via SKIP INSERT in SkipWebTests.swift (line 16) to ensure Build.FINGERPRINT is set when missing. Implemented the Robolectric call via reflection (Class.forName("org.robolectric.shadows.ShadowBuild")) so the generated code compiles in both unit-test and instrumented-test source sets. This prevents Compose test initialization crashes in Robolectric (Build.FINGERPRINT == null) while avoiding direct org.robolectric compile-time dependency in androidTest.

… test APIs in order to pass CI

…dependent tests when isRobolectric == true, and to skip before calling those APIs.

…ccess

…or failures Wrap rect/width snapshot capture in a timeout guard and skip only transient simulator-side failures (WKErrorDomain Code=1 / timeout) seen under CI load, while preserving normal assertions when snapshots succeed.

… propagation on slower or noisy CI simulators, causing intermittent false negatives. Add a bounded polling helper (awaitCookieHeaderContains) and use it in: - testIOSNamedProfileIsolatesCookiesAcrossDifferentProfiles - testIOSNamedProfileSharesCookiesAcrossEnginesWithSameIdentifier Behavioral intent is unchanged: - still requires cookie presence in the expected profile - still fails on cross-profile leakage - now includes clearer assertion context (observed headers) for CI diagnostics

…tor tests

tifroz · 2026-03-19T03:38:57Z

I keep consistently hitting this HVF error: HV_UNSUPPORTED eventually followed by Error: Timeout waiting for emulator to boot in the Generate ReactiveCircus Android emulator snapshot phase :(

@marcprux any ideas? I think we can exclude random glitches as an explanation given the consistency

From GH Action logs

...
Run reactivecircus/android-emulator-runner@v2
Configure emulator
Install Android SDK
Create AVD
Launch Emulator
  Starting emulator.
  /bin/sh -c \/Users/runner/Library/Android/sdk/emulator/emulator -port 5554 -avd stable_default_28 -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none &
  INFO         | Android emulator version 36.4.10.0 (build_id 15004761) (CL:N/A)
  INFO         | Graphics backend: gfxstream
  INFO         | Found systemPath /Users/runner/Library/Android/sdk/system-images/android-28/default/arm64-v8a/
  HVF error: HV_UNSUPPORTED
  qemu-system-aarch64-headless: failed to initialize HVF: Invalid argument
  /Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell getprop sys.boot_completed
  * daemon not running; starting now at tcp:5037
  * daemon started successfully
  adb: device 'emulator-5554' not found
  The process '/Users/runner/Library/Android/sdk/platform-tools/adb' failed with exit code 1
  /Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell getprop sys.boot_completed
  adb: device 'emulator-5554' not found
  The process '/Users/runner/Library/Android/sdk/platform-tools/adb' failed with exit code 1
  /Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell getprop sys.boot_completed
  adb: device 'emulator-5554' not found
  The process '/Users/runner/Library/Android/sdk/platform-tools/adb' failed with exit code 1
  /Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell getprop sys.boot_completed
  adb: device 'emulator-5554' not found
  The process '/Users/runner/Library/Android/sdk/platform-tools/adb' failed with exit code 1
  /Users/runner/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell getprop sys.boot_completed
  adb: device 'emulator-5554' not found
...
[goes on until giving up]

.github/workflows/ci.yml

…res in GH actions

marcprux · 2026-03-20T03:26:49Z

This is looking good to me now that CI passes. How much local testing of this have you done? Are you confident that it is ready to go?

cla-bot bot added the cla-signed label Mar 12, 2026

marcprux approved these changes Mar 17, 2026

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tifroz added 23 commits March 18, 2026 15:35

Added multi-profile support

d61c811

Child window now automatically inherits profile from parent by default

40e33f8

Updated the Android-only test code so it no longer depends on Compose…

3e2da49

… test APIs in order to pass CI

Patched the test suite to skip those instrumentation/WebView-feature-…

264c3f5

…dependent tests when isRobolectric == true, and to skip before calling those APIs.

Added an early Robolectric skip in testSkipWeb before Bundle.module a…

f8ce247

…ccess

tests(skip-web): guard iOS cookie polling helper from SKIP transpilation

da817a6

ci(skip-web): run reusable workflow on macos-15 to restore iOS simula…

df18fcb

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tifroz added 9 commits March 18, 2026 15:35

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tifroz force-pushed the codex/multi-profile branch from 77b3f26 to 08e42da Compare March 18, 2026 22:35

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tifroz added 2 commits March 19, 2026 10:51

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marcprux reviewed Mar 20, 2026

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Codex/multi profile#41

Codex/multi profile#41
tifroz wants to merge 36 commits intoskiptools:mainfrom
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