zypper exits with 0 when remote package is unavailable or timeouts

[aledabin]

Hi, when installing multiple packages and one of them is a remote package, if the remote package is unavailable or timeouts, the exit code is still 0.

To reproduce:

1. optional: start a local listening port: nc -l 9000, the same behavior happens if nothing is listening
2. install a valid package and a fake remote package (to simulate when it's possible to connect to a repository but no content is received):

   [root@root ~]$ zypper  --no-refresh install --no-confirm --no-recommends --allow-unsigned-rpm  bash  http://localhost:9000/none.rpm
   Problem retrieving the specified RPM file:
   Timeout exceeded when accessing 'http://localhost:9000/none.rpm'.
   Please check whether the file is accessible.
   Problem with the RPM file specified as 'http://localhost:9000/none.rpm', skipping.
   Loading repository data...
   Reading installed packages...
   'bash' is already installed.
   No update candidate for 'bash-4.4-150400'. The highest available version is already installed.
   Resolving package dependencies...
   Nothing to do.
   [root@root ~]$ echo $?
   0

   My assumption is the exit status should not be 0 as not all packages were installed.

If only a remote package is specified, it works as expected:

[root@root ~]$ zypper  --no-refresh install --no-confirm --no-recommends --allow-unsigned-rpm   http://localhost:9000/none.rpm
Problem retrieving the specified RPM file:
Timeout exceeded when accessing 'http://localhost:9000/none.rpm'.
Please check whether the file is accessible.
Problem with the RPM file specified as 'http://localhost:9000/none.rpm', skipping.
No valid arguments specified.
[root@root ~]$  echo $?
3

It fails immediately or timeouts after some minutes, and finish with exit code 3.

[Shane-Braswell]

Notice the same issue when packages are skipped but found locally. Expect an option to throw an error but that's not available.