Directory Tree Structure

This program generates a tree-like representation of a directory structure, displaying files and folders hierarchically.

Features

• Directory traversal: Displays folders and files within a specified directory.
• File size display: Shows the size of each file, indicating empty files as (empty).
• Optional file display: Only displays files if the -f flag is passed, otherwise only directories are shown.

Usage

To run this program, use the following command:

go run main.go <directory-path> [-f]

Parameters

• <directory-path>: Required. The path of the directory you want to display.
• [-f]: Optional. If included, files within the directory are displayed along with their sizes. If omitted, only directories are shown.

Example

go run main.go . -f

This will display the contents of the current directory (and its subdirectories) in a tree format, showing both folders and files along with their sizes.

Example Output

Here's what a sample output might look like when run on a directory:

├───dir1
│   ├───subdir1
│   └───file1.txt (12b)
└───dir2
    ├───file2.txt (empty)
    └───subdir2
        └───file3.txt (20b)

In this example:

• Directories are displayed with indentation and branching lines.
• Files display their sizes in bytes, or (empty) if the file has no content.

Notes

• The program panics if the command-line arguments are not in the correct format.
• Ensure you have permission to read all files in the specified directory.