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[No QA] Fix import/no-cycle - part 3 - #99910

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roryabraham merged 6 commits into
Expensify:mainfrom
callstack-internal:fix/no-cycle-part3-log-network
Sep 7, 2026
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[No QA] Fix import/no-cycle - part 3#99910
roryabraham merged 6 commits into
Expensify:mainfrom
callstack-internal:fix/no-cycle-part3-log-network

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@LukasMod

@LukasMod LukasMod commented Aug 31, 2026

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Explanation of Change

Why

libs/Log imported post from libs/Network. libs/Network imports MainQueue, and MainQueue imports libs/Request, SequentialQueue and NetworkStore, all three of which import libs/Log. Every cycle in that 15-file cluster runs through that one edge.

Log never needed the whole of post. Every log packet is queued with shouldProcessImmediately: false (serverLoggingCallback in Log.ts), so post pushed the request and returned without calling MainQueue.process. The comment on that check already says why: a Log command must not re-enter MainQueue.process from inside MainQueue.process. So Log only ever used the queueing half.

File Change
src/libs/Network/MainQueueStore.ts (new) The queue array and push, clear, getAll move out of MainQueue unchanged, plus replaceAll (a setter for the assignment process used to make directly) and enqueue (the first half of post, body verbatim).
src/libs/Network/MainQueue.ts Keeps canMakeRequest, replay and process; re-exports clear and getAll so its consumers do not change. push is no longer exported, nothing outside the module used it.
src/libs/Network/index.ts post is enqueue(...) followed by the processMainQueue() call it already made conditionally. The main queue bootstrap (leader election, then the drain interval) moves from a module load side effect into a startMainQueue() function.
src/setup/index.ts Calls startMainQueue().
src/libs/Log.ts Imports enqueue instead of post.

No function bodies change. Two nuances:

  • processMainQueue() now runs just after the new Promise executor rather than at the end of it. Same call, same tick.
  • The bootstrap no longer runs at import time of libs/Network. Before the split, libs/Log pulled libs/Network into hundreds of modules, so the bootstrap was guaranteed to be armed. Now the only remaining edge is the post import in Middleware/Reauthentication, reached via the middleware registry, so it is started explicitly from app setup instead of relying on that import surviving.

Result

With oxlint import/no-cycle as the only enabled rule: 534 to 500 findings (-34), 148 to 133 files (-15). With #99670 and #99768 also applied: 458 to 424 findings, 113 to 98 files.

Fixed Issues

$ #99650
PROPOSAL:

Tests

  • Verify that no errors appear in the JS console

Smoke test

  1. Sign in,
  2. Send a message and confirm it goes through
  3. Go offline
  4. Queue a few actions
  5. Come back online and confirm they flush.

Offline tests

QA Steps

  • Verify that no errors appear in the JS console

PR Author Checklist

  • I linked the correct issue in the ### Fixed Issues section above
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@LukasMod
LukasMod requested review from a team as code owners August 31, 2026 14:21
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melvin-bot Bot requested review from flaviadefaria and youssef-lr and removed request for a team August 31, 2026 14:22
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@youssef-lr Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

@LukasMod
LukasMod force-pushed the fix/no-cycle-part3-log-network branch 2 times, most recently from e580079 to b211421 Compare August 31, 2026 15:10
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LukasMod marked this pull request as draft August 31, 2026 16:12
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Codex Review: Didn't find any major issues. Another round soon, please!

Reviewed commit: 6608dac5c9

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roryabraham requested review from roryabraham and thelullabyy and removed request for flaviadefaria and youssef-lr August 31, 2026 22:42
@LukasMod
LukasMod force-pushed the fix/no-cycle-part3-log-network branch 2 times, most recently from 4a2cde3 to 2142573 Compare September 1, 2026 09:58
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Codex Review: Didn't find any major issues. 👍

Reviewed commit: 2142573a80

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LukasMod marked this pull request as ready for review September 1, 2026 11:16
roryabraham
roryabraham previously approved these changes Sep 1, 2026

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Otherwise, this seems like a safe mechanical change. Nonetheless, I'll await C+ review

Comment thread src/libs/Network/MainQueueStore.ts Outdated
@roryabraham

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@LukasMod jest tests are failing

@thelullabyy

thelullabyy commented Sep 3, 2026

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Reviewer Checklist

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@LukasMod

LukasMod commented Sep 3, 2026

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Yup, it was failing on main too. Rebasing all branches

LukasMod and others added 3 commits September 3, 2026 08:32
…ithout importing libs/Network

libs/Log imported `post` from libs/Network, which imports MainQueue, which imports libs/Request,
SequentialQueue and NetworkStore, all three of which import libs/Log. That one edge held the 15-file
network cluster inside oxlint's import/no-cycle graph.

Every log packet is queued with shouldProcessImmediately: false, so `post` pushed it and returned
without calling MainQueue.process. So the queue and the function that puts a request on it move to
Network/MainQueueStore, which imports nothing that reaches libs/Log. MainQueue re-exports push, clear
and getAll, so its consumers do not change, and libs/Log imports `enqueue` rather than `post`.

No function body changes. `post` is `enqueue` plus the process kick it already made conditionally.

import/no-cycle goes from 534 findings across 148 files to 500 across 133, and the libs/Network and
libs/Request subsystem leaves the cycle graph. No other oxlint rule count changes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
libs/Network runs the main queue bootstrap as a module load side effect: flush the persisted request queue,
then start the drain interval once the leader tab is elected. Before the MainQueueStore split, libs/Log
imported `post` from libs/Network, so hundreds of modules pulled the bootstrap in. Now the only edge is the
`post` import in libs/Reauthentication, which the middleware registry reaches via API/makeRequest, so the
bootstrap still runs before any request can be made on every platform.

That chain is load bearing and invisible. Nothing failed if a link was dropped or made lazy, the queue just
stopped draining. This test loads libs/API with libs/Network mocked and asserts the module was reached, so
only the reachability is checked and the real bootstrap never runs.

Verified green-red-green: stubbing out the `post` import in libs/Reauthentication fails it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
LukasMod and others added 2 commits September 3, 2026 08:32
libs/Network flushed the persisted request queue and started the drain interval as a side effect of being
imported. Before the MainQueueStore split, libs/Log imported `post` from libs/Network, so hundreds of modules
pulled that in. After the split the only edge was the `post` import in libs/Reauthentication, reached via
API/makeRequest and the middleware registry. Still reachable on every platform, but nothing showed the import
was load bearing, and dropping or lazy loading it would have left the queue undrained with no other signal.

Wrap the block in `startMainQueue` and call it once from the app setup, next to the other startup wiring that
deliberately sits outside the React lifecycle. Position within setup does not matter: on native
ActiveClientManager.isReady() resolves immediately so the callback runs on a microtask after setup returns, and
on web it waits for ActiveClientManager.init() from Expensify.tsx.

This replaces the reachability test added in the previous commit, which guarded an import chain that no longer
carries the wiring. Knip covers the remaining failure mode: delete the call and the export goes unused.

No behaviour change. import/no-cycle stays at 504 findings across 134 files, with an identical finding set
before and after. Full Jest run matches the baseline: 12 failures across DateUtilsTest, SubscriptionUtilsTest
and UnreadIndicatorsTest, all three confirmed failing without this change.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@LukasMod
LukasMod force-pushed the fix/no-cycle-part3-log-network branch from 05f7468 to 26a6e09 Compare September 3, 2026 06:41
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Codecov Report

❌ Looks like you've decreased code coverage for some files. Please write tests to increase, or at least maintain, the existing level of code coverage. See our documentation here for how to interpret this table.

Files with missing lines Coverage Δ
src/libs/Log.ts 77.27% <100.00%> (ø)
src/libs/Network/MainQueueStore.ts 100.00% <100.00%> (ø)
src/libs/Network/index.ts 92.85% <100.00%> (-2.15%) ⬇️
src/setup/index.ts 100.00% <100.00%> (ø)
src/libs/Network/MainQueue.ts 56.52% <75.00%> (-7.77%) ⬇️
... and 9 files with indirect coverage changes

@roryabraham

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@LukasMod conflicts here

…g-network-v2

# Conflicts:
#	src/setup/index.ts
@LukasMod

LukasMod commented Sep 7, 2026

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resolved

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LGTM

@melvin-bot
melvin-bot Bot requested a review from roryabraham September 7, 2026 18:10
@roryabraham
roryabraham merged commit 89cc9ca into Expensify:main Sep 7, 2026
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✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

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🚧 roryabraham has triggered a test Expensify/App build. You can view the workflow run here.

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🚀 Deployed to staging by https://github.com/roryabraham in version: 9.4.74-0 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 success ✅
🍎 iOS 🍎 success ✅

@MelvinBot

MelvinBot commented Sep 8, 2026

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🤖 No help site changes are required for this PR.

This is an internal module refactor to break an import/no-cycle edge between libs/Log and libs/Network. Nothing customer-facing changes:

  • No UI, screen, tab, setting, or button is added, removed, or renamed.
  • No copy or src/languages/* strings are touched.
  • No feature behavior changes. The PR description confirms no function bodies change, and the PR is marked [No QA].
  • The only behavioral nuances are internal timing (processMainQueue() moving just outside the new Promise executor, same tick) and moving the main queue bootstrap from an import side effect into an explicit startMainQueue() call from src/setup/index.ts.

I also checked docs/articles for anything that documents offline queueing or request-retry behavior that this refactor could contradict. The only matches for "offline" are unrelated (SmartScan troubleshooting, Workspace Workflows, QuickBooks Desktop, travel terms, and the Spend page), and none describe the mechanics this PR moves.

Because no article needs an edit, I did not create a draft docs PR — there is nothing to write that would be accurate and non-duplicative.

@LukasMod, there is no linked help site PR to review, since no docs/articles change is needed here. If you believe a specific article does need updating because of this change, reply with the article and what should change and I'll open the draft PR.


view run · view recording

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🚀 Deployed to production by https://github.com/mountiny in version: 9.4.74-2 🚀

platform result
🕸 web 🕸 success ✅
🤖 android 🤖 success ✅
🍎 iOS 🍎 success ✅

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5 participants