# core/persistence/tool.persistence.ts

> 34 lines of code and 8 definitions.

Tree: GovLab Quality
Language: typescript
Layer: infrastructure
Canonical: https://banes-lab.com/anatomy/quality#file-quality-core-persistence-tool-persistence-ts
Source text: https://banes-lab.com/source/quality/core/persistence/tool.persistence.ts.txt

Listed in [core/persistence](https://banes-lab.com/api/source/quality/core/persistence.md), after [core/persistence/edit.persistence.ts](https://banes-lab.com/source/quality/core/persistence/edit.persistence.ts.md).

## Definitions

- `writeToolFile` (lexical_declaration, line 16, exported)
- `readToolReport` (lexical_declaration, line 38, exported)
- `toolCacheDir` (lexical_declaration, line 6, exported)
- `toolCacheRelative` (lexical_declaration, line 12, exported)
- `dir` (lexical_declaration, line 7, exported)
- `writeToolJson` (lexical_declaration, line 22, exported)
- `freshToolFile` (lexical_declaration, line 32, exported)
- `file` (lexical_declaration, line 33, exported)

## Contained in

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

## Used by

- [core/adapters/tool.golangci-lint.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.golangci-lint.adapter.ts.md)
- [core/adapters/tool.kics.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.kics.adapter.ts.md)
- [core/adapters/tool.perlcritic.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.perlcritic.adapter.ts.md)
- [core/adapters/tool.prettier.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.prettier.adapter.ts.md)
- [core/adapters/tool.sqlfluff.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.sqlfluff.adapter.ts.md)
- [core/adapters/tool.swiftlint.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.swiftlint.adapter.ts.md)

## Linked from

- [core/adapters](https://banes-lab.com/anatomy/quality/folder-quality-core-adapters.md)

## Source

```typescript
import { existsSync, mkdirSync, readFileSync, rmSync } from "node:fs";
import { writeCanonicalJson, writeVerbatim } from "@govlab/canonical-write";
import path from "node:path";
import { relativePath } from "@ssot/paths";

export const toolCacheDir = function toolCacheDir(root: string, ...segments: string[]): string {
    const dir = path.join(root, relativePath("toolCache"), ...segments);
    mkdirSync(dir, { recursive: true });
    return dir;
};

export const toolCacheRelative = function toolCacheRelative(...segments: string[]): string {
    return relativePath("toolCache", ...segments);
};

export const writeToolFile = function writeToolFile(root: string, name: string, content: string): string {
    const file = path.join(toolCacheDir(root), name);
    writeVerbatim(file, content);
    return file;
};

export const writeToolJson = async function writeToolJson(
    root: string,
    name: string,
    content: Record<string, unknown>,
): Promise<string> {
    const file = path.join(toolCacheDir(root), name);
    await writeCanonicalJson(file, content);
    return file;
};

export const freshToolFile = function freshToolFile(root: string, name: string): string {
    const file = path.join(toolCacheDir(root), name);
    rmSync(file, { force: true });
    return file;
};

export const readToolReport = function readToolReport(file: string): string {
    return existsSync(file) ? readFileSync(file, "utf8") : "";
};
```