Gather-All-Code-From-Crates

gather-all-code-from-crates is a Rust crate designed to extract, filter, and reconstruct code elements from Rust projects. It provides a flexible and configurable toolset for analyzing and processing Abstract Syntax Trees (ASTs) of Rust code, with options to include or exclude specific elements based on user-defined criteria.

Disclaimer

Version 0.1.0 is a quick sketch.

It needs a refactor, a thorough testing, and is bound to have some bugs.

That said, the basic functionality is currently decent and mostly working.

Pull requests are most welcome.

Features

• AST Filtering: Extract structs, enums, functions, and other items from Rust ASTs.
• Customizable Criteria: Filter items by visibility, test inclusion, file paths, and more.
• Configuration Options:
  • Global configuration through JSON files.
  • CLI arguments for runtime customization.
• Reconstruction: Rebuild filtered code snippets with options to include or omit function bodies and documentation comments.
• Error Handling: Comprehensive error handling for invalid inputs, configuration issues, and more.

Installation

Add this crate to your Cargo.toml:

[dependencies]
gather-all-code-from-crates = "0.1.0"

Usage

Basic Example

Run the tool using the CLI to gather and filter code from crates:

cargo run -- --crate path/to/crate --include-tests --omit-private

Programmatic API

Loading Global Configuration

use gather_all_code_from_crates::{load_global_config, GlobalConfig};

let config = load_global_config()?;

Filtering AST Items

use gather_all_code_from_crates::{process_crate_directory, AstFilterCriteria};
use std::path::PathBuf;

let criteria = AstFilterCriteria::default();
let crate_path = PathBuf::from("path/to/crate");
let result = process_crate_directory(&crate_path, &criteria)?;
println!("Filtered Code:\n{}", result);

Building Effective Config

use gather_all_code_from_crates::build_effective_config_from_cli;

let effective_config = build_effective_config_from_cli()?;
println!("Effective Config: {:?}", effective_config);

CLI Options

• --crate <path>: Specify one or more crate directories to scan. Defaults to the current directory if not provided.
• --include-tests: Include test code in the output.
• --omit-private: Exclude private functions and items.
• --omit-bodies: Exclude function bodies in the output.
• --single-test <name>: Include only a single test block by name.
• --single-function <name>: Include only a single function body by name.
• --exclude-file <path>: Exclude specific files by relative path.
• --exclude-main-file: Exclude main files such as src/lib.rs or src/main.rs.
• --remove-doc-comments: Remove documentation comments from the output.

Configuration

Global configuration is loaded from a JSON file located at ~/.gather-all-code-from-crates. Example:

{
  "project_overrides": {
    "project_a": {
      "include_tests": true,
      "omit_private": false
    }
  },
  "default_include_tests": true,
  "default_omit_bodies": false,
  "extra_flags": 0
}

Error Handling

The crate defines custom error types (AppError) to handle different scenarios, including:

• Missing configuration or data.
• Invalid arguments.
• File I/O errors.
• AST parsing issues.

Contributing

Contributions are welcome! Please submit a pull request or open an issue to discuss any changes or features.

License

This project is licensed under the MIT License. See the LICENSE file for details.