# core/persistence/baseline.persistence.ts

> 13 lines of code and 2 definitions.

Tree: Bane's Lab Build Scripts
Language: typescript
Layer: infrastructure
Canonical: https://banes-lab.com/anatomy/build-scripts#file-build-scripts-core-persistence-baseline-persistence-ts
Source text: https://banes-lab.com/source/build-scripts/core/persistence/baseline.persistence.ts.txt

Listed in [core/persistence](https://banes-lab.com/api/source/build-scripts/core/persistence.md), after [core/persistence/asset.persistence.ts](https://banes-lab.com/source/build-scripts/core/persistence/asset.persistence.ts.md) and before [core/persistence/catalog.persistence.ts](https://banes-lab.com/source/build-scripts/core/persistence/catalog.persistence.ts.md).

## Definitions

- `persistBaseline` (lexical_declaration, line 10, exported)
- `readBaseline` (lexical_declaration, line 6, exported)

## Contained in

- [core/persistence](https://banes-lab.com/anatomy/build-scripts/folder-build-scripts-core-persistence.md)

## Uses

- [core/converters/baseline.converter.ts](https://banes-lab.com/source/build-scripts/core/converters/baseline.converter.ts.md)

## Used by

- [core/coordinators/anatomy.coordinator.ts](https://banes-lab.com/source/build-scripts/core/coordinators/anatomy.coordinator.ts.md)

## Linked from

- [core/converters](https://banes-lab.com/anatomy/build-scripts/folder-build-scripts-core-converters.md)
- [core/coordinators](https://banes-lab.com/anatomy/build-scripts/folder-build-scripts-core-coordinators.md)

## Source

```typescript
import { existsSync, readFileSync } from "node:fs";
import type { ExactReference } from "#types/anatomy.types";
import { parseBaseline } from "#core/converters/baseline.converter";
import { writeCanonicalJson } from "@govlab/canonical-write";

export const readBaseline = function readBaseline(file: string): readonly ExactReference[] {
    return existsSync(file) ? parseBaseline(readFileSync(file, "utf8")) : [];
};

export const persistBaseline = async function persistBaseline(
    file: string,
    baseline: readonly ExactReference[],
): Promise<void> {
    await writeCanonicalJson(file, baseline);
};
```