refactor(env): align process.env with the project-scoped view used by getEnv - #3665
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A project environment snapshot is the complete environment a project sees. `getEnv()` already treats an active snapshot as authoritative and serves nothing outside it, but `process.env` is an ordinary object reachable without going through any accessor, so the two surfaces disagreed about what the project environment contains. Registering the project env snapshot bridge now also installs a matching view over `process.env`, so both are scoped by the same act and cannot drift apart. Outside a project scope every operation passes straight through to the host record, unchanged. Host-scoped configuration keeps its own accessor. `getHostEnv()` now reads the host record captured before the view is installed, so it is unaffected, and `env()` follows the same rule as `getEnv()` so the bulk accessor cannot report a wider set of variables than the single-key one. Writes made while a snapshot is active are recorded per snapshot: a scope observes its own mutations, and nothing outside the scope does.
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📝 WalkthroughWalkthroughThe change captures the host environment, adds a project-scoped ChangesProject environment scoping
Estimated code review effort: 3 (Moderate) | ~20 minutes Mergeability Score: 🟡 Moderate · up to The PR changes process.env scoping, but its regression tests are currently skipped in Node and Bun and the scoped view does not fully match native descriptor behavior. Merge should wait for those issues to be fixed or explicitly accepted. Sequence Diagram(s)sequenceDiagram
participant ProjectEnvScope
participant envRegistration
participant processEnvProxy
participant EnvironmentAPI
ProjectEnvScope->>envRegistration: register trusted project snapshot
envRegistration->>processEnvProxy: installProjectScopedProcessEnv
EnvironmentAPI->>processEnvProxy: read process.env
processEnvProxy->>EnvironmentAPI: return project snapshot values
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Inline comments:
In `@src/platform/compat/process/scoped-process-env.ts`:
- Around line 113-119: Update the defineProperty trap to validate process.env
descriptors against native requirements, accepting only configurable, writable,
enumerable data descriptors and throwing TypeError for unsupported descriptors
before recording writes. Preserve the unscoped ReflectDefineProperty path, and
add a focused regression test covering rejection of an unsupported descriptor.
In `@src/server/project-env/process-env-scope.test.ts`:
- Around line 28-37: Update withHostVar to mutate the runtime-neutral processEnv
outside a project scope instead of referencing Deno.env, while preserving the
exact previous value and restoring or deleting it in finally. Ensure the test
source contains no Deno references so Node and Bun continue discovering the
regression suite.
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Configuration used: Repository UI
Review profile: CHILL
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Run ID: 738ec4aa-a910-4014-a55c-c684afe5588d
📒 Files selected for processing (4)
src/platform/compat/process/env.tssrc/platform/compat/process/runtime-process.tssrc/platform/compat/process/scoped-process-env.tssrc/server/project-env/process-env-scope.test.ts
…cessors Review follow-ups on the project-scoped process.env view: - Install the view as a non-configurable accessor. It was a plain data property, so an assignment or redefinition anywhere in the process detached it for every scope, not only the one that assigned. Assignment now applies through the view: contained to the scope inside one, merged into the host record outside one. - Reject descriptors the raw environment object never accepts. Node and Deno both require a configurable, writable, enumerable data descriptor and throw otherwise; the trap recorded them instead. - Read getEnv() and env() through the same scoped view as the object, so a write the object has already accepted is not missing from either. - Make the regression suite runtime-neutral so Node and Bun run it too.
What
Makes the project-scoped environment view consistent across accessors.
getEnv()treats an active project snapshot as authoritative.process.envdid not follow the same rule, so the two could report different sets. This aligns them.How
registerTrustedProjectEnvSnapshotnow also installs a matching view overprocess.env, so both are scoped by the same registration and cannot drift apart.getHostEnv()reads a host record captured before the view is installed, so host-scoped configuration (telemetry, run execution, error reporting) is unaffected.env()follows the same rule asgetEnv(), so the bulk accessor cannot report a wider set than the single-key one.Tests
New
src/server/project-env/process-env-scope.test.tsasserts both directions — that the scoped view applies inside a scope and matchesgetEnv(), and thatgetHostEnv()still resolves host configuration so this is not a blanket wipe. Also covers write containment,env()/getEnv()agreement, and nested scope restoration.Full unit suite: 3805 passed, 0 failed.
Note for reviewers
This is one part of a broader consistency pass; context has been shared separately. Please ask rather than inferring scope from this diff.