Summary

This code implements a Rust program that searches for files bigger than 100mb in a given directory or the whole file system if no filepath is given. It uses the clap and std libraries for command line argument parsing and file size calculation, respectively.

Installation Guidelines

These guidelines will help you install and set up sizer on your system. Please follow these steps carefully to ensure a smooth installation process.

Prerequisites

Before you begin, make sure your system meets the following prerequisites:

• Have Homebrew installed for Mac Users

Installation Steps

1. Install Sizer

   Depending on your operating system, follow the relevant installation method:

   • macOS:

     brew tap BukiOffor/sizer
     brew install sizer

   • Windows:

     - Download the installer.
     - Run the installer and follow the on-screen instructions.
     

   • Linux:

     - Download the Linux package or use package manager commands (e.g., `apt`, `yum`) to install.
     

2. Configuration (if applicable)

   Some software/tools may require configuration. Refer to the official documentation for details on how to configure sizer to suit your needs.

3. Verification

   After installation, verify that sizer is installed correctly by running the following command:

   sizer --version
   sizer -h

Example Usage For the Script

// Make sure you are in the project folder
// Run the program with a specific directory path
$ cargo run -q -- -p /path/to/directory

// Run the program without specifying a directory path (searches the whole file system)
$ cargo run -q

// Run the program with a specific directory path and custom file size threshold
$ cargo run -q -- -p /path/to/directory -s 200

Code Analysis

Inputs

• matches: A clap::ArgMatches object that contains the parsed command line arguments.

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Flow

1. Initialize the logger for logging purposes.
2. Parse the command line arguments using clap to get the matches object.
3. Get the value of the path argument from the matches object.
4. If a path value is provided, convert it to a PathBuf object and assign it to home_dir.
5. Get the value of the size argument from the matches object.
6. If a size value is provided, assign it to size as an Option<&String>.
7. If a path value is provided, call the entry function from the sizer library with home_dir and size as arguments.
8. If no path value is provided, create a PathBuf object for the root directory ("/") and assign it to root_dir.
9. Call the entry function from the sizer library with root_dir and size as arguments.

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Outputs

None. The function performs file size calculations and logging based on the provided command line arguments.

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