Prettify filesizes in package visualization chart

Add a general purpose formatter and mark up each value function with an
'is_size' attribute so we can add additional display formatting if asked
for.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/media/archweb.js b/media/archweb.js
index 2414331..a51ae46 100644
--- a/media/archweb.js
+++ b/media/archweb.js
@@ -232,3 +232,20 @@ function signoff_package() {
     });
     return false;
 }
+
+/* visualizations */
+function format_filesize(size, decimals) {
+    /*var labels = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];*/
+    var labels = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+    var label = 0;
+
+    while (size > 2048.0 && label < labels.length - 1) {
+        label++;
+        size /= 1024.0;
+    }
+    if (decimals === undefined) {
+        decimals = 2;
+    }
+
+    return size.toFixed(decimals) + ' ' + labels[label];
+}