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Faster Arduino compilation CLI. Arduino快速编译工具，小项目提速50%，大项目提速80%! 时间就是金钱，我的朋友!

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# Aily Builder - Arduino Lightning Compilation Tool

[中文](README-ZH.md) | English

> Arduino Lightning Compilation Tool  
> Compilation speed far exceeds Arduino CLI, superior to PlatformIO  
> Make Arduino Great Again!

If this tool helps you, please give it a ⭐️ for support!

## Core Features

### Lightning-Fast Compilation
- **Staged Builds**: Separates preprocessing and compilation to avoid unnecessary repeated dependency analysis
- **Ultra-Fast Analysis**: Uses a streaming, macro-aware preprocessor directive scanner for precise dependency detection
- **Build System**: Uses Ninja build system with parallel compilation to maximize CPU utilization
- **Smart Caching**: Avoids redundant compilation, significantly reducing build time
- **Incremental Builds**: Only compiles modified files

## Quick Start

```bash
npm install -g aily-builder
aily-builder --help
```

For local development:

```bash
git clone https://github.com/ailyProject/aily-builder
cd aily-builder
npm install
npm link
aily-builder --help
```

### Basic Usage

```bash
# Compile Arduino project
aily-builder compile sketch.ino

# Specify board
aily-builder compile sketch.ino --board arduino:avr:uno

# Parallel compilation (8 tasks)
aily-builder compile sketch.ino --jobs 8

# With external libraries
aily-builder compile sketch.ino --libraries-path "C:\Arduino\libraries"

# Enable verbose output
aily-builder compile sketch.ino --verbose
```

### Preprocess and Compile Separation

The tool supports separating preprocessing from compilation, which is useful for:
- **CI/CD pipelines**: Run preprocessing once, compile multiple times
- **Parallel builds**: Share preprocessing results across build workers
- **Debugging**: Inspect preprocessing results before compilation
- **Performance optimization**: Skip preprocessing when dependencies haven't changed

#### Preprocessing Only

Perform preprocessing without compilation (dependency analysis, config generation, prebuild hooks):

```bash
# Basic preprocessing
aily-builder preprocess sketch.ino --board arduino:avr:uno

# With external libraries
aily-builder preprocess sketch.ino --board esp32:esp32:esp32 --libraries-path "C:\Arduino\libraries"

# Output as JSON for programmatic use
aily-builder preprocess sketch.ino --output-json

# Save result for later compilation (useful for CI/CD)
aily-builder preprocess sketch.ino --save-result ./preprocess.json
```

#### Compile with Preprocess Result

Use saved preprocessing results to skip the preprocessing phase:

```bash
# Compile using saved preprocess result (skips preprocessing)
aily-builder compile sketch.ino --preprocess-result ./preprocess.json

# Full workflow example
aily-builder preprocess sketch.ino --board arduino:avr:uno --save-result ./preprocess.json
aily-builder compile sketch.ino --board arduino:avr:uno --preprocess-result ./preprocess.json
```

**Preprocessing Steps:**
1. Validate sketch file
2. Extract macros from sketch
3. Parse board and platform configuration
4. Prepare build directory
5. Analyze dependencies
6. Generate compile configuration
7. Run prebuild hooks (if configured)

### Upload Firmware

```bash
# Upload firmware to Arduino board
aily-builder upload -p COM3 -f firmware.hex --board arduino:avr:uno

# With verbose output
aily-builder upload -p /dev/ttyUSB0 -f firmware.bin --board esp32:esp32:esp32 --verbose
```

### Cache Management

```bash
# View cache statistics
aily-builder cache stats

# Clear entries not used in the last 30 days
aily-builder cache clear --unused-30

# Preview what would be deleted (dry run)
aily-builder cache clear --unused-7 --dry-run

# Clear all cache
aily-builder cache clear --all
```

## Detailed Documentation

### Compile Command Options

```bash
Arguments:
  sketch                           Path to Arduino sketch (.ino file)

Options:
  -b, --board <board>              Target board (default: "arduino:avr:uno")
  -p, --port <port>                Serial port for upload
  --sdk-path <path>                Path to Arduino SDK
  --tools-path <path>              Path to additional tools
  --build-path <path>              Build output directory
  --libraries-path <path>          Additional libraries path (can be used multiple times)
  --build-property <key=value>     Additional build property (can be used multiple times)
  --build-macros <macro[=value]>   Custom macro definitions (e.g., DEBUG, VERSION=1.0.0)
  --board-options <key=value>      Board menu options (e.g., flash=2097152_0)
  --tool-versions <versions>       Specify tool versions (format: tool1@version1,tool2@version2)
  --preprocess-result <path>       Use preprocess result JSON file (skip preprocessing)
  --archive-cloud-cache <path>     Local archive cloud cache directory
  --no-archive-cloud-cache         Disable archive cloud cache restore and generation
  --archive-cloud-cache-url <url>  Remote archive cloud cache base URL
  --no-fetch-archive-cloud-cache   Do not fetch cached .a archives from remote cloud cache
  --archive-cloud-cache-local-only Only use local archive cloud cache; do not request remote cache
  --generate-archive-cloud-cache   Generate uploadable archive cloud cache entries after successful builds
  -j, --jobs <number>              Number of parallel compilation jobs (default: "4")
  --verbose                        Enable verbose output
  --log-file                       Write logs to file in build directory
  -h, --help                       Display help for command
```

### Preprocess Command Options

```bash
Arguments:
  sketch                           Path to Arduino sketch (.ino file)

Options:
  -b, --board <board>              Target board (default: "arduino:avr:uno")
  --sdk-path <path>                Path to Arduino SDK
  --tools-path <path>              Path to additional tools
  --build-path <path>              Build output directory
  --libraries-path <path>          Additional libraries path (can be used multiple times)
  --build-property <key=value>     Additional build property
  --build-macros <macro[=value]>   Custom macro definitions
  --board-options <key=value>      Board menu options
  --tool-versions <versions>       Specify tool versions
  --output-json                    Output preprocess result as JSON
  --save-result <path>             Save full preprocess result to JSON file
  --verbose                        Enable verbose output
  --log-file                       Write logs to file in build directory
  -h, --help                       Display help for command
```

### Upload Command Options

```bash
Options:
  -b, --board <board>              Target board (default: "arduino:avr:uno")
  -p, --port <port>                Serial port for upload (required)
  -f, --file <file>                Firmware file path (.hex or .bin) (required)
  --build-property <key=value>     Additional build property
  --verbose                        Enable verbose output
  --log-file                       Write logs to file
  -h, --help                       Display help for command
```

### Cache Commands

```bash
# Cache statistics
aily-builder cache stats [--verbose] [--json]

# Cache cleanup
aily-builder cache clear [options]
  --all               Clear all persistent cache data
  --unused-30         Clear entries not used in the last 30 days
  --unused-7          Clear entries not used in the last 7 days
  --dry-run           Preview mode, don't actually delete
  --json              Output machine-readable JSON

# Clear all cache
aily-builder cache clear --all
```

### Build Path Configuration

Build output is stored by default in:
- **Windows**: `%LOCALAPPDATA%\aily-builder\project\<sketchname>_<hash>`
- **macOS**: `~/Library/aily-builder/project/<sketchname>_<hash>`

## Build progress protocol

Starting with 1.2.11, the `compile` command emits a single-line, machine-readable global progress event on stdout:

```text
[aily-builder:progress] {"protocolVersion":1,"stage":"core","percent":63,"status":"running","message":"Compiling core"}
```

`percent` is monotonic across the complete build, and only the final successful event uses `status: "complete"` with `percent: 100`. Consumers should handle this line as protocol data rather than displaying it as a regular build log. Clients can continue parsing the legacy Ninja progress format for builder 1.2.10 and earlier.

## Contributing
Issues and Pull Requests are welcome!

## License

GNU GENERAL PUBLIC LICENSE V3

## Acknowledgments

- [Ninja Build System](https://ninja-build.org/) - High-performance build system
- [Arduino CLI](https://arduino.github.io/arduino-cli/) - Arduino development tools

aily-builder

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