[build-tools] Claim the warm Simulator and adopt its serve-sim by gwdp · Pull Request #4724 · expo/eas-cli

gwdp · 2026-10-22T21:19:58Z

Requires a serve-sim release with --orphan support (expo/expo-device-hub#438). Keep this PR in draft until that release is available.

codecov · 2026-10-23T00:05:23Z

Codecov Report

❌ Patch coverage is 94.50262% with 21 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (gwdp/cold-ios-session-20261026@d5f1ee9). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...ages/build-tools/src/steps/utils/warmIosSession.ts	91.87%	13 Missing and 1 partial ⚠️
...ools/src/steps/utils/IosSimulatorRecordingUtils.ts	93.48%	3 Missing ⚠️
...uild-tools/src/steps/utils/agentDeviceArtifacts.ts	96.73%	2 Missing ⚠️
...ild-tools/src/steps/utils/warmDeviceSessionHost.ts	97.62%	1 Missing ⚠️
packages/build-tools/src/utils/warmSimulator.ts	97.15%	1 Missing ⚠️

Additional details and impacted files

@@                        Coverage Diff                        @@
##             gwdp/cold-ios-session-20261026    #4724   +/-   ##
=================================================================
  Coverage                                  ?   76.12%           
=================================================================
  Files                                     ?     1077           
  Lines                                     ?    53961           
  Branches                                  ?    11812           
=================================================================
  Hits                                      ?    41072           
  Misses                                    ?    11905           
  Partials                                  ?      984

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

The warm launcher now disables apsd during warmup, so the session host runs Simulator setup only for servers it launches itself. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

The warm launcher preinstalls Expo Go. When a warm session's app is Expo Go with the same version, skip staging and installing it again. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

A just-installed app is not running, so pass restart: false to serve-sim app.launch. Older serve-sim versions ignore the key. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Skip a matching Expo Go install using the identity in the warm claim record instead of asking the Simulator, and launch the skipped app without the restart check. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Compare the installed or preinstalled bundle identifier with the launched one. Launching a different app keeps the restart check. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Co-authored-by: Codex <noreply@openai.com>

github-actions · 2026-10-27T07:08:16Z

✅ Thank you for adding a changeset!

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from 61a1d77 to 3c643b1 Compare October 22, 2026 22:00

gwdp mentioned this pull request Oct 22, 2026

[build-tools] Add warm iOS Simulator session steps #4723

Draft

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch 2 times, most recently from 13bdc62 to b72f76e Compare October 22, 2026 23:59

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch 2 times, most recently from 4660651 to b951b79 Compare October 23, 2026 01:21

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from b951b79 to 7239ed8 Compare October 23, 2026 01:38

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch 2 times, most recently from 3318b8c to fc81018 Compare October 23, 2026 04:03

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from fc81018 to 5b142c6 Compare October 23, 2026 04:12

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from 5b142c6 to 594641f Compare October 23, 2026 04:41

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from 594641f to b92f43b Compare October 23, 2026 04:58

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from b92f43b to 2f345b4 Compare October 23, 2026 06:35

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from 2f345b4 to 613b96d Compare October 23, 2026 06:42

gwdp added this pull request to stack #4726 October 23, 2026 06:59

gwdp force-pushed the gwdp/prepared-simulator-build-tools branch from 613b96d to 2116f99 Compare October 23, 2026 07:23

gwdp mentioned this pull request Oct 26, 2026

[build-tools] Move iOS Simulator startup into its own file #4752

Draft

This comment has been minimized.

Sign in to view

gwdp and others added 24 commits October 26, 2026 16:45

[build-tools] Claim warm iOS Simulator sessions

e9d1009

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Skip Simulator setup for prepared warm sessions

afbb0a0

The warm launcher now disables apsd during warmup, so the session host runs Simulator setup only for servers it launches itself. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Reuse a preinstalled Expo Go on warm Simulators

39d6a5a

The warm launcher preinstalls Expo Go. When a warm session's app is Expo Go with the same version, skip staging and installing it again. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Skip the restart check after a fresh install

995deab

A just-installed app is not running, so pass restart: false to serve-sim app.launch. Older serve-sim versions ignore the key. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Compare Expo Go with the launcher's claim record

b7be10b

Skip a matching Expo Go install using the identity in the warm claim record instead of asking the Simulator, and launch the skipped app without the restart check. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Skip the restart check only for the app that was installed

ed56fe2

Compare the installed or preinstalled bundle identifier with the launched one. Launching a different app keeps the restart check. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Use the shared warm Simulator terms in the changeset

6958e76

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

[build-tools] Move warm adapter tests out of shared host tests

d34c913

[build-tools] Import the Simulator stop utility directly

6f9822d

[build-tools] Use explicit warm startup options

0889344

[build-tools] Claim and stop the recorded launcher version

89f4856

[build-tools] Read the warm serve-sim port from the claim

3860a5b

[build-tools] Skip package resolution after confirmed Simulator cleanup

53b9589

[build-tools] Recognize Bun cache misses alongside warning output

1a858e4

[build-tools] Use cold startup after a timed-out claim is cleaned up

2d8c6cb

[build-tools] Honor the package manager for launcher control

dda1f9e

[stack] Integrate current main while preserving existing commits

1af4c72

[stack] Keep existing changes above Simulator prewarming

9e18668

[stack] Keep existing changes above the launcher state cleanup

b1045b0

[stack] Keep existing changes above explicit launcher lifetimes

e3fc3b3

[stack] Keep existing changes above launcher helpers

a1ebf32

Co-authored-by: Codex <noreply@openai.com>

[stack] Keep existing changes above worker-only cleanup

5302aad

Co-authored-by: Codex <noreply@openai.com>

[stack] Keep existing changes above public launcher metadata

f3ac5fa

Co-authored-by: Codex <noreply@openai.com>

[stack] Retain the launcher foundation release entry

4ceb5da

Co-authored-by: Codex <noreply@openai.com>

Navigation Menu

Repository navigation

[build-tools] Claim the warm Simulator and adopt its serve-sim - #4724

[build-tools] Claim the warm Simulator and adopt its serve-sim#4724
gwdp wants to merge 24 commits into
gwdp/cold-ios-session-20261026from
gwdp/prepared-simulator-build-tools

gwdp commented Oct 22, 2026 •

edited

Loading

Uh oh!

codecov Bot commented Oct 23, 2026 •

edited

Loading

Uh oh!

This comment has been minimized.

This comment has been minimized.

This comment has been minimized.

This comment has been minimized.

github-actions Bot commented Oct 27, 2026

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Conversation

gwdp commented Oct 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

codecov Bot commented Oct 23, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

This comment has been minimized.

This comment has been minimized.

This comment has been minimized.

This comment has been minimized.

github-actions Bot commented Oct 27, 2026

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

gwdp commented Oct 22, 2026 •

edited

Loading

codecov Bot commented Oct 23, 2026 •

edited

Loading