[pve-devel] [PATCH installer] get_device_desc: display disk size with 2 decimal places

[Stoiko Ivanov <s.ivanov@proxmox.com>]

instead of cutting it off by using int

especially relevant currently with 2 TB disks (people wonder why
it's displayed as 1 TiB - and would be fine with 1.95TiB).

Reported in our community forum:
https://forum.proxmox.com/threads/.103636/

Tested in a VM with a 100 GiB, 20GiB and 2TiB disk

Addtionally added the explicit return ath the end of the if branch,
instead of relying on the last statement not moving.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
Alternatively we could also use sprintf without decimal places for rounding
(Math::Round is a debian package of it's own) - if people consider
20.00GiB to not look too pleasing

Thanks to Dominik for insisting to see the code on this and suggesting
to actually improve it :)

 proxinstall | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/proxinstall b/proxinstall
index ae0e235..a39d405 100755
--- a/proxinstall
+++ b/proxinstall
@@ -2554,16 +2554,16 @@ sub get_device_desc {
     my ($devname, $size, $model) = @_;
 
     if ($size && ($size > 0)) {
-	$size = int($size/2048); # size in MB, from 512B "sectors"
+	$size = int($size/2048); # size in MiB, from 512B "sectors"
 
 	my $text = "$devname (";
 	if ($size >= 1024) {
-	    $size = int($size/1024); # size in GB
+	    $size = $size/1024; # size in GiB
 	    if ($size >= 1024) {
-		$size = int($size/1024); # size in GB
-		$text .= "${size}TiB";
+		$size = $size/1024; # size in TiB
+		$text .= sprintf("%.2f", $size) . "TiB";
 	    } else {
-		$text .= "${size}GiB";
+		$text .= sprintf("%.2f", $size) . "GiB";
 	    }
 	} else {
 	    $text .= "${size}MiB";
@@ -2571,6 +2571,7 @@ sub get_device_desc {
 
 	$text .= ", $model" if $model;
 	$text .= ")";
+	return $text;
 
     } else {
 	return $devname;
-- 
2.30.2