Create convert.rs

platforms/unix/hardwareinfo/src/convert.rs

@@ -0,0 +1,21 @@
+use std::cmp;
+
+pub fn convert(num: f64) -> String {
+    let negative = if num.is_sign_positive() { "" } else { "-" };
+    let num = num.abs();
+    let units = ["B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
+    if num < 1_f64 {
+        return format!("{}{} {}", negative, num, "B");
+    }
+    let delimiter = 1024_f64;
+    let exponent = cmp::min(
+        (num.ln() / delimiter.ln()).floor() as i32,
+        (units.len() - 1) as i32,
+    );
+    let pretty_bytes = format!("{:.2}", num / delimiter.powi(exponent))
+        .parse::<f64>()
+        .unwrap()
+        * 1_f64;
+    let unit = units[exponent as usize];
+    format!("{}{} {}", negative, pretty_bytes, unit)
+}