# core/parsers/tool.ruff.parser.ts

> 21 lines of code and 3 definitions.

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

Listed in [core/parsers](https://banes-lab.com/api/source/quality/core/parsers.md), after [core/parsers/tool.rubocop.parser.ts](https://banes-lab.com/source/quality/core/parsers/tool.rubocop.parser.ts.md) and before [core/parsers/tool.scalastyle.parser.ts](https://banes-lab.com/source/quality/core/parsers/tool.scalastyle.parser.ts.md).

## Definitions

- `parseRuffOutput` (lexical_declaration, line 9, exported)
- `TOOL` (lexical_declaration, line 7)
- `location` (lexical_declaration, line 11, exported)

## Contained in

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

## Uses

- [core/factories/finding.factory.ts](https://banes-lab.com/source/quality/core/factories/finding.factory.ts.md)
- [core/parsers/record.parser.ts](https://banes-lab.com/source/quality/core/parsers/record.parser.ts.md)
- [core/selectors/record.selector.ts](https://banes-lab.com/source/quality/core/selectors/record.selector.ts.md)

## Used by

- [core/adapters/tool.ruff.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.ruff.adapter.ts.md)

## Linked from

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

## Source

```typescript
import { hasField, numberField, recordAt, stringField } from "#core/selectors/record.selector";
import type { Finding } from "#types/finding.types";
import { POSITION } from "#configuration/constants/tool.constants";
import { parseJsonRecords } from "#core/parsers/record.parser";
import { toolFinding } from "#core/factories/finding.factory";

const TOOL = "ruff";

export const parseRuffOutput = function parseRuffOutput(stdout: string, ecosystem: string): Finding[] {
    return parseJsonRecords(stdout || "[]").map((diagnostic) => {
        const location = recordAt(diagnostic, "location");
        return toolFinding({
            column: numberField(location, "column", POSITION),
            ecosystem,
            file: stringField(diagnostic, "filename"),
            fixable: hasField(diagnostic, "fix"),
            line: numberField(location, "row", POSITION),
            message: stringField(diagnostic, "message"),
            ruleId: stringField(diagnostic, "code", TOOL),
            tool: TOOL,
        });
    });
};
```