MetaCall Distributable MacOS

This repository contains shell scripts to generate MetaCall binaries for MacOS. The project automates the process of installing MetaCall as a Homebrew formula and creating a distributable package using the brew-pkg tool.

Prerequisites

• MacOS operating system
• Homebrew package manager
• brew-pkg tool

Contents

• build.sh: Main script that orchestrates the binary generation process
• test.sh: Runs various tests against MetaCall
• ./tests: Includes language specific tests

Implementation

This brew formulae compiles MetaCall core for ARM64 and AMD64. The installation process has been optimized to install the dependencies in a dynamic way.

• Enhanced Python setup process

  • Support for detecting Python version and location dynamically.
  • Improved handling of Python paths for both macOS and Linux systems.

• Refined NodeJS installation

  • Installs node executable and other shared libraries separately instead of a brew dependency
  • Bash completion for NPM

• Enhanced Metacall launcher:

  • Added more robust path detection for metacallcli based on the dsitributable type

The final distributable is generated using a Homebrew extension brew-pkg. It generates a installable .pkg and a portable .tar.gz file. The fork includes some extra features which have been described below.

1. Recursive library patching: The function recursively processes linked libraries.

2. Dynamic linking: Uses @executable_path to create relative paths for dynamic linking.

3. ELF file validation: Checks if the target binary is a valid ELF (Executable and Linkable Format) file.

4. Library dependency analysis: Uses otool -L to identify linked libraries for the given binary.

5. Path filtering: Filters library paths to only process those within the specified prefix path.

6. Relative path calculation: Computes relative paths between the binary and its linked libraries.

7. Library path updating: Uses install_name_tool to update library paths in the binary.

Usage

MetaCall supports ARM64 and AMD64 architectures at the moment. Clone the repository and build MetaCall using ./build.sh. The script will perform the following actions:

• Install MetaCall as a Homebrew formula
• Generate a distributable package using brew-pkg

Generated files can be found in the release directory.

Customization

To enable/disable any loaders, modify the formulae and change the args passed to cmake.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

Please read the license here.