utils: add size unit related helpers to parse/auto-scale/format

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/src/Utils.js b/src/Utils.js
index b8ffd851a1bb20f5eef8a55b938c367e06aa7990..9ceea628066e177780729fc99a9688b4c14a7944 100644 (file)
--- a/src/Utils.js
+++ b/src/Utils.js
@@ -680,6 +680,37 @@ utilities: {
        'PB': 1000*1000*1000*1000*1000,
     },
 
+    parse_size_unit: function(val) {
+       //let m = val.match(/([.\d])+\s?([KMGTP]?)(i?)B?\s*$/i);
+       let m = val.match(/(\d+(?:\.\d+)?)\s?([KMGTP]?)(i?)B?\s*$/i);
+       let size = parseFloat(m[1]);
+       let scale = m[2].toUpperCase();
+       let binary = m[3].toLowerCase();
+
+       let unit = `${scale}${binary}B`;
+       let factor = Proxmox.Utils.SizeUnits[unit];
+
+       return { size, factor, unit, binary }; // for convenience return all we got
+    },
+
+    size_unit_to_bytes: function(val) {
+       let { size, factor } = Proxmox.Utils.parse_size_unit(val);
+       return size * factor;
+    },
+
+    autoscale_size_unit: function(val) {
+       let { size, factor, binary } = Proxmox.Utils.parse_size_unit(val);
+       return Proxmox.Utils.format_size(size * factor, binary !== "i");
+    },
+
+    size_unit_ratios: function(a, b) {
+       a = typeof a !== "undefined" ? a : 0;
+       b = typeof b !== "undefined" ? b : Infinity;
+       let aBytes = typeof a === "number" ? a : Proxmox.Utils.size_unit_to_bytes(a);
+       let bBytes = typeof b === "number" ? b : Proxmox.Utils.size_unit_to_bytes(b);
+       return aBytes / (bBytes || Infinity); // avoid division by zero
+    },
+
     render_upid: function(value, metaData, record) {
        let task = record.data;
        let type = task.type || task.worker_type;