kube_quantity - Kubernetes Quantity Parser

kube_quantity is a library adding arithmetic operations to the Quantity type from the k8s-openapi crate.

Installation

Run the following Cargo command in your project directory to add the latest stable version:

bash cargo add kube_quantity

Or add the following line to your Cargo.toml:

toml [dependencies] kube_quantity = "0.1.0"

Upgrading

Please check the CHANGELOG when upgrading.

Usage

Addition of quantities

```rust use k8sopenapi::apimachinery::pkg::api::resource::Quantity; use kubequantity::{ParseQuantityError, ParsedQuantity};

// Try parsing k8s quantities let q1: Result = Quantity("1Ki".tostring()).tryinto(); let q2: Result = Quantity("2Ki".tostring()).tryinto();

// Add parsed quantities let q3: ParsedQuantity = q1.unwrap() + q2.unwrap(); // Convert parsed quantity back into a k8s quantity let q3: Quantity = q3.into();

assert_eq!(q3.0, "3Ki"); ```

```rust use k8sopenapi::apimachinery::pkg::api::resource::Quantity; use kubequantity::{ParseQuantityError, ParsedQuantity};

let q1: Result = Quantity("5M".tostring()).tryinto(); let q2: Result = Quantity("7M".tostring()).tryinto();

let mut q1 = q1.unwrap(); q1 += q2.unwrap();

let q1: Quantity = q1.into();

assert_eq!(q1.0, "12M");

```

Subtraction of quantities

```rust use k8sopenapi::apimachinery::pkg::api::resource::Quantity; use kubequantity::{ParseQuantityError, ParsedQuantity};

// Try parsing k8s quantities let q1: Result = Quantity("1M".tostring()).tryinto(); let q2: Result = Quantity("500k".tostring()).tryinto();

// Subtract parsed quantities let q3: ParsedQuantity = q1.unwrap() - q2.unwrap(); // Convert parsed quantity back into a k8s quantity let q3: Quantity = q3.into();

assert_eq!(q3.0, "500k"); ```

```rust use k8sopenapi::apimachinery::pkg::api::resource::Quantity; use kubequantity::{ParseQuantityError, ParsedQuantity};

// Try parsing k8s quantities let q1: Result = Quantity("10G".tostring()).tryinto(); let q2: Result = Quantity("500M".tostring()).tryinto();

let mut q1 = q1.unwrap(); q1 -= q2.unwrap();

let q1: Quantity = q1.into();

assert_eq!(q1.0, "9500M"); ```

License

Apache 2.0 licensed. See LICENSE for details.