fix: Fix chectl logs before che pods start

[flacatus]

Signed-off-by: Flavius Lacatusu flacatus@redhat.com

What does this PR do?

Sometimes chectl fails before Che pods start and that means there are not any logs.
This PR check if directory logs are empty and print a message.

What issues does this PR fix or reference?

https://issues.redhat.com/browse/CRW-859

[flacatus]

[dmytro-ndp]

IMHO "Installation failed, check logs in '${ctx.directory}'`)" message should be shorten if there are no logs available.

[openshift-ci-robot]

@dmytro-ndp: changing LGTM is restricted to collaborators

In response to this:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dmytro-ndp, flacatus, tolusha
To complete the pull request process, please assign
You can assign the PR to them by writing /assign in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment