# mermaid-diagram-creator

A CLI tool to convert Mermaid diagram files (.mmd) to SVG format.

## Features

- Convert Mermaid diagram text files to SVG
- Easy command-line interface
- Fast rendering with `beautiful-mermaid`
- Input validation with Zod

## Installation

### 1. Set up the project

```bash
bun install
```

### 2. Create symlink to your user bin directory

```bash
ln -s /Users/my_user_name/project_dir/mermaid-diagram-creator/bin/mmd-to-svg ~/.local/bin/mmd-to-svg
```

## Usage

```bash
mmd-to-svg <input.mmd> <output.svg>
```

### Hot Reloading

Using [entr](https://github.com/eradman/entr)

```bash
echo docs/diagrams/create_thing.mmd | entr mmd-to-svg ./docs/diagrams/create_thing.mmd ./docs/diagrams/create.svg
```

### Example

```bash
mmd-to-svg example.mmd diagram.svg
```

This will read the Mermaid diagram from `example.mmd` and output the rendered SVG to `diagram.svg`.

### Example diagram file (example.mmd)

```mermaid
graph TD
    A[Start] --> B{Decision}
    B -->|Yes| C[Action]
    B -->|No| D[End]
```

## Development

Run directly:

```bash
bun index.ts example.mmd output.svg
```

Built with [Bun](https://bun.com) - a fast all-in-one JavaScript runtime.