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name: pywayne-bin-gettool description: Fetch and install C++ tools/libraries from cpp_tools repository. Use when users need to download or clone third-party C++ libraries such as eigen, opencv, pcl, fmt. Use for building tools from source using CMake, installing tools with installation scripts, listing available tools, or managing cpp_tools repository URL. Triggered by requests to fetch, get, download, clone, or install C++ tools or libraries.

Pywayne Bin Gettool

Tool fetcher for C++ libraries from cpp_tools repository. Supports sparse checkout, optional building with CMake/make, and installation scripts.

Quick Start

# List all supported tools
gettool -l

# Fetch a tool to default path (based on name_to_path_map.yaml)
gettool <tool_name>

# Fetch to specific path
gettool <tool_name> -t <target_path>

# Fetch and build (if buildable)
gettool <tool_name> -b

# Fetch and install (if installable)
gettool <tool_name> -i

Usage Patterns

1. List Available Tools

When user wants to see what tools are available:

gettool -l

2. Simple Fetch

Download tool source code to default path (determined by name_to_path_map.yaml in current directory):

gettool opencv
gettool eigen

3. Fetch with Custom Target

Download tool to a specific directory:

gettool opencv -t third_party/opencv
gettool eigen -t external/eigen

4. Build from Source

Build the tool using CMake and make. Requirements:

• Tool must be marked as buildable: true in name_to_path_map.yaml
• Tool must have a CMakeLists.txt file
• Build output (lib/) is copied to target directory

gettool apriltag_detection -b
gettool <tool_name> -b -t build/<tool_name>

5. Clean Copy (src + include only)

Fetch only src/ and include/ directories if they exist:

gettool eigen -c

6. Fetch and Install

After fetching, execute the tool's installation script (if configured):

gettool pcl -i
gettool pcl -i --global-install-flag true  # Use sudo make install

7. Fetch Specific Version

Check out a specific version/tag/branch (only works for tools that are submodules):

gettool fmt -v 9.1.0

8. Manage Repository URL

# Show current URL
gettool --get-url

# Set custom URL
gettool --set-url <URL>

# Reset to default URL
gettool --reset-url

Command Reference

Argument	Description
<name> or -n <name>	Tool name from name_to_path_map.yaml
-t <path>	Target output directory (default: based on mapping)
-b / --build	Build using CMake + make (if buildable)
-c / --clean	Copy only src/include directories
-v <version>	Checkout specific version (submodules only)
-i / --install	Run installation script (if installable)
--global-install-flag	Set to true for sudo make install
-l / --list	List all supported tools
--get-url	Show current repository URL
--set-url <URL>	Set repository URL
--reset-url	Reset to default URL

Tool Types and Behavior

Submodule Tools

• Cloned as full independent repositories
• Support -v for version checkout
• Not built via CMake (use -b for source-level build if configured)

Non-Submodule Tools (Sparse Checkout)

• Fetched via git sparse-checkout from cpp_tools repo
• Can be built with -b (requires buildable=true and CMakeLists.txt)
• Build output (lib/) copied to target directory

Default Path Mapping

When -t is not specified, the target path is determined by the path field in name_to_path_map.yaml relative to the current working directory.

Example: If opencv maps to third_party/opencv, running gettool opencv creates ./third_party/opencv.

Prerequisites

• Git
• CMake and make (for -b flag)
• Appropriate C++ toolchain (for building)
• Write permissions for target directory

Common Tool Names

Typical tools available (run gettool -l for current list):

• eigen - Linear algebra library
• opencv - Computer vision library
• pcl - Point Cloud Library
• fmt - Formatting library
• apriltag_detection - AprilTag detection
• spdlog - Fast C++ logging library