Summary:
In its current for the `podspec_source_build_from_local_source_dir` makes an assumption in the existence of the `artifacts_dir` ("Pods/hermes-engine-artifacts"). This is okay in the case where the `pod install` command is first ran without sitting the `REACT_NATIVE_OVERRIDE_HERMES_DIR` because of
1948076b81/packages/react-native/sdks/hermes-engine/hermes-utils.rb (L227)
In a clean checkout however, this results in an error when archiving the Hermes directory due to the missing parent directory of the archive's destination.
This PR suggests adding a check for and optional creation of the existence of the archive directory before usage.
An alternative that I considered was ensuring the existence inside of the `artifacts_dir` function:
1948076b81/packages/react-native/sdks/hermes-engine/hermes-utils.rb (L198-L200)
But there's only one other call site, which already does the `mkdir -p`.
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[IOS] [FIXED] - Ensure artifacts directory exists when building Hermes from local source
Pull Request resolved: https://github.com/facebook/react-native/pull/47698
Test Plan:
I verified the fix by:
- Doing a local git clone of the `hermes` repository.
- Ensure no `Pods` directory exists.
- `export REACT_NATIVE_OVERRIDE_HERMES_DIR=/your/local/path/to/hermes` pointing to the local `hermes` repository.
- Run `pod install`
Reviewed By: cipolleschi
Differential Revision: D66162175
Pulled By: dmytrorykun
fbshipit-source-id: 322633e217063e7ca199b9a9602e279df5fbdb70
c3091ccfed