docs(universalarchive): expand documentation (#13136)

plugins/universalarchive/README.md

@@ -1,46 +1,76 @@
 # universalarchive plugin
 
-Lets you compress files by a command `ua <format> <files>`, supporting various
-compression formats (e.g. 7z, tar.gz, lzma, ...).
+The `universalarchive` plugin provides a convenient command-line interface for archiving files and directories using a wide variety of compression formats - without having to remember the exact syntax for each tool.
 
-To enable it, add `universalarchive` to the plugins array in your zshrc file:
+To enable it, add `universalarchive` to the plugins array in your `.zshrc` file:
 
 ```zsh
 plugins=(... universalarchive)
 ```
 
+## Features
+ - Compress files and directories using a simple, unified command: ua <format> <files>
+ - Automatically detects file/directory names to generate appropriate output names
+ - Supports fallback naming if an output file already exists
+ - Works with many common and advanced compression formats
+ - Designed for simplicity and quick use in the terminal
+
 ## Usage
 
-Run `ua <format> <files>` to compress `<files>` into an archive file using `<format>`.
-For example:
-
+Basic command format:
 ```sh
-ua xz *.html
+ua <format> <files...>
+```
+- `<format>`: the archive format to use (e.g., `zip`, `tar.gz`, `xz`, `7z`, etc.)
+- `<files...>`: one or more files or directories to compress
+
+## Examples:
+
+Compresses `notes.txt` and `images` into `notes.zip`
+```sh
+ua zip notes.txt images/
 ```
 
-this command will compress all `.html` files in directory `folder` into `folder.xz`.
+Creates `myproject.tar.gz`
+```sh
+ua tar.gz myproject/
+```
 
-This plugin saves you from having to remember which command line arguments compress a file.
+Compresses all .log files into `current_folder.xz`
+```sh
+ua xz *.log
+```
 
-## Supported compression formats
+The plugin will generate a default archive filename based on the input:
+ - For a file, the output is derived from the file name without its extension.
+ - For a directory, it uses the directory name.
+ - For multiple files, it uses the name of the common parent directory.
 
-| Extension        | Description                    |
-|:-----------------|:-------------------------------|
-| `7z`             | 7zip file                      |
-| `bz2`            | Bzip2 file                     |
-| `gz`             | Gzip file                      |
-| `lzma`           | LZMA archive                   |
-| `lzo`            | LZO archive                    |
-| `rar`            | WinRAR archive                 |
-| `tar`            | Tarball                        |
-| `tbz`/`tar.bz2`  | Tarball with bzip2 compression |
-| `tgz`/`tar.gz`   | Tarball with gzip compression  |
-| `tlz`/`tar.lzma` | Tarball with lzma compression  |
-| `txz`/`tar.xz`   | Tarball with lzma2 compression |
-| `tZ`/`tar.Z`     | Tarball with LZW compression   |
-| `xz`             | LZMA2 archive                  |
-| `Z`              | Z archive (LZW)                |
-| `zip`            | Zip archive                    |
-| `zst`            | Zstd archive                   |
+ If the output file already exists, a unique filename is generated using `mktemp`.
 
-See [list of archive formats](https://en.wikipedia.org/wiki/List_of_archive_formats) for more information regarding the archive formats.
+## Supported Archive Formats
+
+| Format           | Description                    | Tool Used        |
+|:-----------------|:-------------------------------|:-----------------|
+| `7z`             | 7zip archive                   | `7z`             |
+| `bz2`            | Bzip2-compressed file          | `bzip2`          |
+| `gz`             | Gzip-compressed file           | `gzip`           |
+| `lzma`           | LZMA-compressed file           | `lzma`           |
+| `lzo`            | LZO-compressed file            | `lzop`           |
+| `rar`            | WinRAR archive                 | `rar`            |
+| `tar`            | Uncompressed tarball           | `tar`            |
+| `tbz`,`tar.bz2`  | Tarball compressed with Bzip2  | `tar + bzip2`    |
+| `tgz`,`tar.gz`   | Tarball compressed with Gzip   | `tar + gzip`     |
+| `tlz`,`tar.lzma` | Tarball compressed with LZMA   | `tar + lzma`     |
+| `txz`,`tar.xz`   | Tarball compressed with LZMA2  | `tar + xz`       |
+| `tZ`,`tar.Z`     | Tarball compressed with LZW    | `tar + compress` |
+| `xz`             | XZ-compressed file             | `xz`             |
+| `Z`              | LZW-compressed file            | `compress`       |
+| `zip`            | Standard Zip archive           | `zip`            |
+| `zst`            | Zstandard-compressed file      | `zstd`           |
+
+ > Note: Some formats may require specific tools to be installed on your system (e.g. `7z`, `rar`, `lzop`, `zstd`). Make sure these tools are available in your `$PATH`.
+
+## Auto-Completion
+
+The plugin provides tab-completion for supported formats and input files. Type `ua <TAB>` to see available formats, and `ua <format> <TAB>` to browse files.