# Yay.nix

Yay.nix (Yet another Yay) is a simple wrapper around useful commands I use all the time and can't be bothered to keep typing. I also just miss writing yay in terminal.

## Overview

Yay.nix provides simple, user-friendly commands for common Nix operations like rebuilding your flake config, updating flakes, garbage collection, and more. It includes fish shell completions for all commands and options, making it faster and easier to work with Nix.

## Installation

### As a Flake

Add to your flake.nix:

```nix
{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    yay-nix = {
      url = "github:Tophc7/yay.nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, yay-nix, ... }: {
    # For NixOS system configuration
    nixosConfigurations.<yourhostname> = nixpkgs.lib.nixosSystem {
      # ...
      modules = [
        yay-nix.nixosModules.default
        # ...
      ];
    };
  };
}
```

### With Home Manager

```nix
{
  imports = [
    inputs.yay-nix.homeManagerModules.default
  ];
}
```

## Commands

### rebuild

Rebuild your NixOS configuration.
It will look for a flake in this pattern: `-p <PATH> > $FLAKE > ./`

```bash
yay rebuild [OPTIONS]
```

Options:
- `-p, --path PATH`: Path to the Nix configuration (overrides FLAKE env var)
- `-H, --host HOST`: Hostname to build for (default: current hostname)
- `-t, --trace`: Enable trace output
- `-h, --help`: Show help message

### update

Update flake inputs.

```bash
yay update [OPTIONS]
```

Options:
- `-p, --path PATH`: Path to the Nix configuration (overrides FLAKE)
- `-h, --help`: Show help message


TODO:
- update specific inputs
- autocomplete for those inputs

### garbage

Clean up the Nix store and home-manager backups.
Super overkill don't come for me if something goes wrong. Regardless I use it all the time. 

```bash
yay garbage
```

This command:
1. Cleans using `nh clean all` (with and without sudo)
2. Runs `nix-collect-garbage --delete-old` (with and without sudo) 
3. Executes `nix-store --gc` (with and without sudo)
4. Removes home-manager backup files

### try

Create a shell with specified packages.

```bash
yay try PACKAGE [PACKAGE...]
```

Example:
```bash
yay try fastfetch cowsay
```

TODO:
- allow `--` to run command directly  

### tar

Create compressed archives with various compression methods.

```bash
yay tar [OPTIONS] INPUT_PATH [OUTPUT_PATH]
```

Options:
- `-c, --compression TYPE`: Compression type (default: zstd)
- `-l, --level N`: Compression level where applicable
- `-o, --output PATH`: Output file path
- `-t, --threads N`: Number of threads to use where supported
- `-v, --verbose`: Enable verbose output
- `-h, --help`: Show help message

Supported compression types:
- `7zip`:   .7z (levels: 0-9, default 5)
- `bzip2`:  .tar.bz2 (levels: 1-9, default 9)
- `bzip3`:  .tar.bz3 (block size in MiB: 1-511, default 16)
- `gzip`:   .tar.gz (levels: 1-9, default 6)
- `tar`:    .tar (no compression)
- `zstd`:   .tar.zst (levels: 1-19, default 3)

### untar

Extract various archive formats.

```bash
yay untar [OPTIONS] ARCHIVE [OUTPUT_DIR]
```

Options:
- `-o, --output DIR`: Output directory 
- `-v, --verbose`: Enable verbose output
- `-h, --help`: Show help message

Supported archive formats (auto-detected from extension):
- `.7z`, `.tar.7z` (7-Zip)
- `.tar.bz2`, `.tb2`, `.tbz`, `.tbz2`, `.tz2` (bzip2)
- `.tar.bz3` (bzip3)
- `.tar.gz`, `.tgz` (gzip)
- `.rar` (RAR)
- `.tar` (uncompressed tar)
- `.tar.zst`, `.tzst` (zstd)

### more?

If theres a command you think would be useful to add let me know, I might agree.

## Technical Details

Yay.nix is implemented as a collection of fish functions that are installed into your system's fish function path. The main `yay` command is a bash script that invokes fish with the correct environment to execute the functions.

All commands and options have competitions making the tool easy to use interactively

## License

MIT