Add Bun runtime support for JavaScript actions #4126
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Pull Request Overview
This PR adds support for using Bun as a JavaScript runtime for GitHub Actions by allowing using: "bun" in action manifests. The implementation includes automatic download and installation of Bun v1.3.2 across all supported platforms (Windows x64, macOS x64/ARM64, Linux x64/ARM64) with special handling for Alpine containers.
Key Changes:
- Added Bun runtime detection and execution logic to the Node script action handler
- Updated action manifest validation to accept "bun" as a valid runtime option
- Modified external dependencies script to download Bun binaries for all platforms
Reviewed Changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/Misc/externals.sh | Downloads Bun v1.3.2 binaries for all platforms, including musl variants for Alpine |
| src/Runner.Worker/Handlers/StepHost.cs | Implements Bun runtime version determination with Alpine container detection |
| src/Runner.Worker/Handlers/NodeScriptActionHandler.cs | Adds Bun execution path and conditional environment variable handling |
| src/Runner.Worker/ActionManifestManager.cs | Updates manifest parser to accept "bun" as valid runtime |
| src/Runner.Worker/ActionManifestManagerLegacy.cs | Updates legacy manifest parser to accept "bun" as valid runtime |
| src/Test/L0/Worker/ActionManifestManagerL0.cs | Updates test expectations for new error messages |
| src/Test/L0/Worker/ActionManifestManagerLegacyL0.cs | Updates test expectations for new error messages |
Signed-off-by: Vladislav Polyakov <[email protected]>
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using: "bun".Note: This implementation was developed with assistance from LLM.
#2846