# core/persistence/catalog.persistence.ts

> 12 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-catalog-persistence-ts
Source text: https://banes-lab.com/source/build-scripts/core/persistence/catalog.persistence.ts.txt

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

## Definitions

- `writeCatalog` (lexical_declaration, line 6, exported)
- `target` (lexical_declaration, line 8, exported)

## Contained in

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

## Source

```typescript
import { dirname, join } from "node:path";
import { fileOfAddress } from "#core/resolvers/catalog.resolver";
import { mkdirSync } from "node:fs";
import { writeVerbatim } from "@govlab/canonical-write";

export const writeCatalog = function writeCatalog(outDir: string, files: ReadonlyMap<string, string>): number {
    for (const [address, body] of files) {
        const target = join(outDir, fileOfAddress(address));
        mkdirSync(dirname(target), { recursive: true });
        writeVerbatim(target, body);
    }
    return files.size;
};
```