Fixes #27374 - Add export-default to export default cv like CDN

[chris1984]

No description provided.

[theforeman-bot]

Issues: #27374

[chris1984]

@mccun934 if you want to test it?

@akofink do you know of a good way to stub out /var/lib/pulp/published/yum/https/repos/ for the test? it is failing since rsync cant cd to the directory.

[akofink]

The code looks fine to me (I didn't test it). Commented inline with an idea for how to test.

[chris1984]

@akofink thanks for the pointer :) How does this look?

Once @mccun934 comments on the true testing then I think we can merge

[akofink]

Looks good. Thanks @chris1984! One other comment/question for you.

[chris1984]

@akofink updated based on the last comment, also added another test to make it fail and check for that:

Here are the results of the test from my devel box:

Good:

[vagrant@centos7-katello-devel ~]$ hammer content-view version export-default --export-dir /home/vagrant/test
Default content view export is available at /home/vagrant/test

[vagrant@centos7-katello-devel ~]$ ll /home/vagrant/test/
total 4
drwxr-x---. 4 vagrant apache 57 Jul 23 18:43 Default_Organization
-rw-r--r--. 1 vagrant apache 20 Jul 23 18:43 listing

Fail:

[vagrant@centos7-katello-devel ~]$ hammer content-view version export-default --export-dir /root
rsync: change_dir#1 "/root" failed: Permission denied (13)
rsync error: errors selecting input/output files, dirs (code 3) at main.c(614) [Receiver=3.1.2]
Could not export the content view at /root

Mike said he won't be able to test till next week, so up to you if you want to merge/ack or let it sit. I am fine with either since it is not a urgent issue. I had to add the puts statement since it is not giving the user good/fail messages prob because of the kernel command so had to manually add them.

[akofink]

I'm fine with merging. The code is fairly straightforward. I have some comments about the puts statements :)

[chris1984]

@akofink updated. I removed the puts and replaced with the output method, removed the failure/success messages since they are not used and also removed the return statements.

Here are the updated tests:

Good:

[vagrant@centos7-katello-devel hammer_cli_katello-0.18.0]$ hammer content-view version export-default --export-dir /home/vagrant/test
Default content view export is available at /home/vagrant/test
[vagrant@centos7-katello-devel hammer_cli_katello-0.18.0]$ ll /home/vagrant/test
total 4
drwxr-x---. 4 vagrant apache 57 Jul 23 18:43 Default_Organization
-rw-r--r--. 1 vagrant apache 20 Jul 23 18:43 listing

Bad:
[vagrant@centos7-katello-devel hammer_cli_katello-0.18.0]$ hammer content-view version export-default --export-dir /root
rsync: change_dir#1 "/root" failed: Permission denied (13)
rsync error: errors selecting input/output files, dirs (code 3) at main.c(614) [Receiver=3.1.2]
Could not export the default content view at /root

[akofink]

Thanks @chris1984! ACK!