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Use `json` module for JSON validation in `output-cache` by mario-campos · Pull Request #4096 · github/codeql-action · GitHub

Use json module for JSON validation in output-cache - #4096

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mario-campos/use-json-module
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Use json module for JSON validation in output-cache#4096
mario-campos wants to merge 9 commits into
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mario-campos/use-json-module

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mario-campos commented Aug 14, 2026
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  • Use the included json module to improve (make more readable) the validation of the output of codeql version.
  • Refactor getCachedCodeQlVersion and cacheCodeQlVersion to accept the cache-file-path as an argument, rather than construct it; this makes it easier to test.
  • Change the VersionInfo type to be derived from its JSON schema.

Risk assessment

For internal use only. Please select the risk level of this change:

  • Low risk: Changes are fully under feature flags, or have been fully tested and validated in pre-production environments and are highly observable, or are documentation or test only.

Which use cases does this change impact?

Workflow types:

  • Advanced setup - Impacts users who have custom CodeQL workflows.
  • Managed - Impacts users with dynamic workflows (Default Setup, Code Quality, ...).

Products:

  • Code Scanning - The changes impact analyses when analysis-kinds: code-scanning.
  • Code Quality - The changes impact analyses when analysis-kinds: code-quality.

Environments:

  • Dotcom - Impacts CodeQL workflows on github.com and/or GitHub Enterprise Cloud with Data Residency.
  • GHES - Impacts CodeQL workflows on GitHub Enterprise Server.

How did/will you validate this change?

  • Unit tests - I am depending on unit test coverage (i.e. tests in .test.ts files).
  • End-to-end tests - I am depending on PR checks (i.e. tests in pr-checks).

If something goes wrong after this change is released, what are the mitigation and rollback strategies?

  • Rollback - Change can only be disabled by rolling back the release or releasing a new version with a fix.

How will you know if something goes wrong after this change is released?

  • Telemetry - I rely on existing telemetry or have made changes to the telemetry.
    • Alerts - New or existing monitors will trip if something goes wrong with this change.

Are there any special considerations for merging or releasing this change?

  • No special considerations - This change can be merged at any time.

Merge / deployment checklist

  • Confirm this change is backwards compatible with existing workflows.
  • Consider adding a changelog entry for this change.
  • Confirm the readme and docs have been updated if necessary.

mario-campos requested review from mbg and a balanced review from Copilot August 14, 2026 04:19
mario-campos requested a review from a team as a code owner August 14, 2026 04:19
github-actions Bot added the size/S Should be easy to review label Aug 14, 2026

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Pull request overview

Refactors output-cache validation to use shared JSON schema utilities.

Changes:

  • Validates version information using JSON schemas.
  • Validates cache entries before accessing the cached version.
Show a summary per file
File Description
src/cli/output-cache.ts Replaces manual checks with shared JSON validators.

Review details

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  • Files reviewed: 1/2 changed files
  • Comments generated: 1
  • Review effort level: Balanced

Comment thread src/cli/output-cache.ts Outdated

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Looks OK, but a good catch from Copilot there that we missed on the previous PR. I also added a comment about avoiding the disconnect between the schema and VersionInfo type. When using the json module for schemas, it is desirable to derive the corresponding type with FromSchema to avoid them going out of sync.

Comment thread src/cli/output-cache.ts Outdated
Comment thread src/cli/output-cache.ts Outdated
Comment thread src/cli/types.ts Outdated
Comment thread src/cli/output-cache.test.ts Outdated

mbg commented Aug 14, 2026

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@mario-campos Also looks like the linter check is failing again. If you haven't already enabled editor.formatOnSave, that might be a useful thing to do to help prevent this.

github-actions Bot added size/M Should be of average difficulty to review and removed size/S Should be easy to review labels Aug 14, 2026

mario-campos commented Aug 14, 2026
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Also looks like the linter check is failing again.

That was a downstream (in tools-feature.ts) effect of the changes made to VersionInfo. It resulted in VersionInfo.features having type any, despite the override. Copilot suggested using Omit<> to fix it, so I did.

That being said, I wonder if it would be better to define a JSON validator for VersionInfo.features such that we can derive VersionInfo directly from its schema?

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