# core/adapters/tool.credo.adapter.ts

> 29 lines of code and 9 definitions.

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

Listed in [core/adapters](https://banes-lab.com/api/source/quality/core/adapters.md), after [core/adapters/tool.clj-kondo.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.clj-kondo.adapter.ts.md) and before [core/adapters/tool.depcheck.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.depcheck.adapter.ts.md).

## Definitions

- `runCredo` (lexical_declaration, line 18)
- `TOOL` (lexical_declaration, line 14)
- `DEFAULTS` (lexical_declaration, line 15)
- `JSON_OPEN` (lexical_declaration, line 16)
- `{ command }` (lexical_declaration, line 19)
- `{ bin, prefix }` (lexical_declaration, line 20)
- `advisory` (lexical_declaration, line 21)
- `spec` (lexical_declaration, line 22)
- `cwd` (lexical_declaration, line 28)

## Contained in

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

## Uses

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

## Linked from

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

## Source

```typescript
import type { RunnerContext, ScanSpec } from "#types/tool.types";
import { commandHint, credoIncomplete } from "#configuration/strings/tool.strings";
import type { RunResult } from "#types/finding.types";
import { commandOf } from "#core/lexers/invocation.lexer";
import { defineTool } from "#core/registries/tool.registry";
import { exitDetail } from "#core/selectors/failure.selector";
import { parseCredoOutput } from "#core/parsers/tool.credo.parser";
import path from "node:path";
import { scanTool } from "#core/adapters/tool.adapter";
import { toolAdvisory } from "#core/factories/tool.factory";
import { toolFailure } from "#core/factories/finding.factory";
import { toolSetting } from "#core/resolvers/tool.resolver";

const TOOL = "credo";
const DEFAULTS = { command: "mix" };
const JSON_OPEN = "{";

const runCredo = async function runCredo(context: RunnerContext): Promise<RunResult> {
    const { command } = await toolSetting(context.root, TOOL, DEFAULTS);
    const { bin, prefix } = commandOf(command, DEFAULTS.command);
    const advisory = toolAdvisory(context, TOOL, commandHint(TOOL, bin));
    const spec: ScanSpec = {
        failed: (result, findings) =>
            findings.length === 0 && !result.stdout.includes(JSON_OPEN) && (result.status ?? 0) !== 0,
        failure: (exit) => toolFailure(advisory, credoIncomplete(exit.status, exitDetail(exit))),
        parse: (result) => parseCredoOutput(result.stdout, context.ecosystem),
    };
    const cwd = path.join(context.root, context.paths[0] ?? ".");
    return scanTool(advisory, { args: [...prefix, TOOL, "--format", "json"], bin, cwd }, spec);
};

defineTool({ ecosystems: ["elixir"], run: runCredo, tool: TOOL });
```