zypper version comparison doesn't work in libvirt_setup/openSUSE_vagrant_setup.sh

[sigsteve]

zypper version comparison doesn't work in libvirt_setup/openSUSE_vagrant_setup.sh

[rdannert]

on linux cmdline(using zypper version 1.14.27 from openSUSE15.1)

$ zypper -V
$ zypper_version=($(zypper -V))
$ echo ${zypper_version[1]}
1.14.27
$ if [[ ${zypper_version[1]} < '1.14.4' ]]; then echo smaller; else echo larger; fi
smaller

which is clearly wrong

rpmdev-vercmp needs the 'zypper-1.14.4' syntax, because the python algorithm requires it

[SweBarre]

Hi,
I don't really understand the problem here but

#zypper_version=($(zypper -V))
zypper_version='1.14.27'
if [[ ${zypper_version[1]} < '1.14.4' ]]

This won't work,
The row you commented out zypper_version=($(zypper -V)) would result in an array, så ${zypper_version[0] would contain the word zypper and ${zypper_version[1]} would contain the version.
When you just put the version in the zypper_version variable like this zypper_version='1.14.27 then the the ${zypper_version[1]}' wouldn't contain anything. And the row if [[ ${zypper_version[1]} < '1.14.4' ]]` would always compare a blank variable with 1.14.4.

You could test this yourself

$> zypper_version=($(zypper -V))
$> echo ${zypper_version[0]}
zypper
$> echo ${zypper_version[1]}
1.14.27
$> unset zypper_version
$> zypper_version='1.14.27
$> echo ${zypper_version[0]}
1.14.27
$> echo ${zypper_version[1]}

anyhow, the zypper_version test in libvirt_setup/openSUSE_vagrant_setup.sh seems to work for me, what is not working for you?

[SweBarre]

Got it, now I understand the issue.