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Rename try-set-nightly-hermes-compiler.js (#56758)#56758

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Rename try-set-nightly-hermes-compiler.js (#56758)#56758
cipolleschi wants to merge 11 commits into
facebook:mainfrom
cipolleschi:export-D104649635

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@cipolleschi cipolleschi commented May 11, 2026

Summary:

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

Changelog:

[Internal] -

Reviewed By: cortinico

Differential Revision: D104649635

@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label May 11, 2026
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meta-codesync Bot commented May 11, 2026

@cipolleschi has exported this pull request. If you are a Meta employee, you can view the originating Diff in D104649635.

@meta-codesync meta-codesync Bot changed the title Rename try-set-nightly-hermes-compiler.js Rename try-set-nightly-hermes-compiler.js (#56758) May 11, 2026
cipolleschi added a commit to cipolleschi/react-native that referenced this pull request May 11, 2026
Summary:
Pull Request resolved: facebook#56758

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

Differential Revision: D104649635
cipolleschi added a commit to cipolleschi/react-native that referenced this pull request May 11, 2026
Summary:
Pull Request resolved: facebook#56758

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

Differential Revision: D104649635
cipolleschi added a commit to cipolleschi/react-native that referenced this pull request May 11, 2026
Summary:
Pull Request resolved: facebook#56758

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

Differential Revision: D104649635
cipolleschi added a commit to cipolleschi/react-native that referenced this pull request May 11, 2026
Summary:
Pull Request resolved: facebook#56758

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

Differential Revision: D104649635
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Review automatically exported from Phabricator review in Meta.

Riccardo Cipolleschi and others added 11 commits May 11, 2026 07:30
…oad the correct commit data.

Differential Revision: D104228879
…oad the correct commit data.

Differential Revision: D104244582
…56735)

Summary:
Pull Request resolved: facebook#56735

  - Remove `RCT_HERMES_V1_ENABLED` environment variable from `react_native_pods.rb`
  - Simplify `jsengine.rb` to always use `.hermesversion` tag file
  - Remove conditional `HERMES_V1_ENABLED=1` preprocessor definition from `utils.rb`
  - Simplify `hermes-engine.podspec`: always read `HERMES_VERSION_NAME`, use V1 source files, remove legacy inspector subspecs
  - Simplify `hermes-utils.rb`: remove `hermes_v1_enabled()` function, always use `250829098.0.0-stable` branch, always use `.hermesversion` tag file

## Changelog:
[iOS][Removed] - Remove the RCT_HERMES_V1_ENABLED from Cocoapods

  ## Test plan
  - [x] iOS: `bundle exec pod install` — success
  - [x] iOS: `xcodebuild` rn-tester on iPhone 16 Pro simulator — BUILD SUCCEEDED

Differential Revision: D104247277

Reviewed By: cortinico
Differential Revision: D104380961
Differential Revision: D104381269
Summary:
Hermes V1 (Static Hermes) is now always enabled. Remove the isHermesV1 variable and inline its effects:
- enableRegenerator is always based on dev mode (was isHermesV1 && dev)
- preserveClasses is always true (was isHermesV1)

Also update the comments to drop the 'V1' framing.

Differential Revision: D104649639
Summary:
The legacy Hermes V0 nightly dist-tag ('nightly') has been removed. This commit
cleans up the ios-prebuild Hermes download logic:
- Remove the 'nightly' sentinel string and getNightlyVersionFromNPM()
- Remove DOWNLOAD_PREBUILT_NIGHTLY_TARBALL source type and downloadPrebuiltNightlyTarball()
- Remove getNightlyTarballUrl() (was fetching from Maven Snapshots for V0 nightlies)
- Rename getLatestV1VersionFromNPM -> getLatestHermesVersionFromNPM
- Update prepare-app-utils.js to use 'latest-v1' instead of 'nightly' for HERMES_VERSION

Differential Revision: D104649632
Summary:
Remove the legacy Hermes V0 nightly (Maven Snapshots) download path:
- Remove DOWNLOAD_PREBUILT_NIGHTLY_TARBALL source type constant
- Remove nightly_artifact_exists(), nightly_tarball_url(), podspec_source_download_prebuilt_nightly_tarball()
- Remove net/http and rexml/document requires (only needed for nightly XML parsing)
- Rename BUILD_FROM_GITHUB_MAIN -> BUILD_FROM_GITHUB_STABLE_BRANCH (was always targeting the stable V1 branch)
- Rename force_build_from_main -> force_build_from_stable_branch
- Rename podspec_source_build_from_github_main -> podspec_source_build_from_github_stable_branch
- Extract HERMES_STABLE_BRANCH constant so the hardcoded branch is in one place

Differential Revision: D104649630
Summary:
The functions getLatestHermesNightlyVersion() and updateHermesVersionsToNightly() were
misleadingly named: they actually fetch from the 'latest-v1' npm dist-tag, not a 'nightly'
tag. Rename them to better reflect what they do:
- getLatestHermesNightlyVersion -> getLatestHermesVersion
- updateHermesVersionsToNightly -> updateHermesVersionsToPrebuilt

Update all call sites in publish-npm.js and publish-npm-test.js.

Differential Revision: D104649629
Summary:
Rename scripts/releases/use-hermes-nightly.js to scripts/releases/use-hermes-prebuilt.js.
The script fetches the latest prebuilt Hermes from the 'latest-v1' npm dist-tag, not a
true 'nightly' build. Update:
- Script name: use-hermes-nightly.js -> use-hermes-prebuilt.js
- Internal log message: 'nightly update' -> 'prebuilt update'
- Import: updateHermesVersionsToNightly -> updateHermesVersionsToPrebuilt
- CI step names: 'Set nightly Hermes versions' -> 'Set Hermes prebuilt version'
- Script path references in test-all.yml, test-ios-helloworld/action.yml,
  test-ios-rntester/action.yml

Differential Revision: D104649633
Summary:
Pull Request resolved: facebook#56758

Rename scripts/try-set-nightly-hermes-compiler.js to
scripts/try-set-hermes-compiler-prebuilt.js. The script sets the hermes-compiler
version to the latest prebuilt (latest-v1 on npm), not a nightly build.
Update the preinstall script reference in the root package.json.

## Changelog:
[Internal] -

Reviewed By: cortinico

Differential Revision: D104649635
@meta-codesync meta-codesync Bot closed this in ac48b56 May 11, 2026
@facebook-github-tools facebook-github-tools Bot added the Merged This PR has been merged. label May 11, 2026
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meta-codesync Bot commented May 11, 2026

This pull request has been merged in ac48b56.

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