rsconstruct 0.9.121

Rust based fast build system
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# Hadolint Processor

## Purpose

Lints Dockerfiles using [Hadolint](https://github.com/hadolint/hadolint).

The Rust alternative is [idockerfile](idockerfile.md): hadolint's `DL` rules, pragmas and `.hadolint.yaml`, in-process, with hadolint's messages and exit rule. Switching is `hadolint` → `idockerfile` in the stanza header. It does not run ShellCheck, so a repo that wants the `SC` findings on its `RUN` scripts stays here.

## How It Works

Discovers `Dockerfile` files in the project (excluding common build tool
directories), runs `hadolint` on each file, and records success in the cache.
A non-zero exit code from hadolint fails the product.

This processor supports batch mode.

## Source Files

- Input: `**/Dockerfile`
- Output: none (checker)

## Configuration

```toml
[processor.checker.hadolint]
args = []
dep_inputs = []
```

| Key | Type | Default | Description |
|-----|------|---------|-------------|
| `args` | string[] | `[]` | Extra arguments passed to hadolint |
| `dep_inputs` | string[] | `[]` | Extra files whose changes trigger rebuilds |

## Batch support

The tool accepts multiple files on the command line. When batching is enabled (default), rsconstruct passes all files in a single invocation for better performance.

## Clean behavior

This processor is a Checker — `rsconstruct clean outputs` is a no-op for it (checkers produce no outputs). See [Clean behavior](../../processors.md#clean-behavior) and [`rsconstruct clean`](../../commands.md#rsconstruct-clean).