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Git Guardrails - Pre Commit Pinned Refs

Pre Commit Pinned Refs

git.pre-commit-pinned-refs

Each repo entry in .pre-commit-config.yaml must have a rev pinned to an immutable ref (tag or commit SHA), not a floating branch like main, master, or HEAD. Floating refs let upstream hook changes land in the developer machine without review. Skips when no pre-commit config is present (paired with pre-commit-config-exists).

pre-commit pinned refs supply chain immutable

Compatible Integrations

This guardrail works with the following integrations. Click to see how to use Pre Commit Pinned Refs with each collector.

Enable This Guardrail

Add the parent policy to your lunar-config.yml to enable this guardrail.

📄 lunar-config.yml
policies:
  - uses: github://earthly/lunar-lib/policies/git@v1.0.5
    include: [pre-commit-pinned-refs]
    # with: ...

How This Guardrail Works

This guardrail is part of the Git Guardrails policy. It evaluates data collected by integrations and produces a pass/fail check with actionable feedback.

When enabled, this check runs automatically on every PR and in AI coding workflows, providing real-time enforcement of your engineering standards.

Learn How Lunar Works
1
Integrations Gather Data
Collectors extract metadata from code, CI pipelines, tool outputs, and scans
2
{ } Centralized as JSON
All data merged into each component's unified metadata document
3
This Guardrail Checks Current
Pre Commit Pinned Refs runs and provides pass/fail feedback

Configuration Options

These inputs can be configured in your lunar-config.yml to customize how the parent policy (and this guardrail) behaves.

Input Required Default Description
secret_scan_hook_ids Optional gitleaks,detect-secrets,trufflehog,detect-aws-credentials,detect-private-key Comma-separated list of pre-commit hook IDs that count as secret scanners
Git Guardrails

Git Guardrails

This guardrail is part of the Git Guardrails policy, which includes 7 guardrails for devex build and ci.

View Policy

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