Bug 1628888

Just to note, there are 2 issues here really:

1. This seems clearly a bug:

  File "/usr/lib/python3.7/site-packages/dnf/util.py", line 130, in _urlopen
    raise IOError(e.args[1])
IndexError: tuple index out of range


2. We have no idea why dnf copr-enable does not use the correct rawhide repository, but a non existing fedora 30 repo.

If I set VERSION="30 (Rawhide)" on /etc/os-release it works

# cat /etc/os-release 
NAME=Fedora
VERSION="30 (Rawhide)"
ID=fedora
VERSION_ID=30
PLATFORM_ID="platform:f30"
PRETTY_NAME="Fedora 30 (Cloud Edition)"
ANSI_COLOR="0;34"
CPE_NAME="cpe:/o:fedoraproject:fedora:30"
HOME_URL="https://fedoraproject.org/"
SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=rawhide
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=rawhide
PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy"
VARIANT="Cloud Edition"
VARIANT_ID=cloud


# dnf copr enable -y mvadkert/beakerlib-libraries
Repository successfully enabled.

not sure what the problem is exactly I found an old rawhide disk laying around and it shows the similar output from the f29 time frame  (this is atomic host):

```
[root@localhost ~]# rpm-ostree status
State: idle; auto updates disabled
Deployments:
● ostree://fedora:fedora/rawhide/x86_64/atomic-host
                   Version: Rawhide.20180308.n.2 (2018-03-08 10:42:30)                                 
                    Commit: 0dbb2ca20192b6dedf2965fb39e5cd680d31b5f596429a1da11344009ed5c353           
[root@localhost ~]#
[root@localhost ~]# cat /etc/os-release
NAME=Fedora
VERSION="29 (Atomic Host)"
ID=fedora
VERSION_ID=29
PRETTY_NAME="Fedora 29 (Atomic Host)"
ANSI_COLOR="0;34"
CPE_NAME="cpe:/o:fedoraproject:fedora:29"
HOME_URL="https://fedoraproject.org/"
SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help"                            
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=rawhide
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=rawhide
PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy"                                
VARIANT="Atomic Host"
VARIANT_ID=atomic.host
[root@localhost ~]# rpm -q --provides fedora-release
config(fedora-release) = 29-0.1
fedora-release = 29-0.1
fedora-release-nonproduct = 29
fedora-release-standard = 22-0.8
redhat-release
system-release
system-release(29)

```

So that part looks fine.

I booted a rawhide cloud image from rawhide-cloud-base-20180820.n.3 and the `dnf copr enable` command doesn't blow up for me:

```
[root@vanilla-rawhide ~]# dnf copr enable -y mvadkert/beakerlib-libraries
Error: This repository does not have any builds yet so you cannot enable it now.
[root@vanilla-rawhide ~]# 
[root@vanilla-rawhide ~]# rpm -q dnf 
dnf-3.2.0-2.fc29.noarch

```

yep and just downloaded latest rawhide cloud image and I can see dnf blow up:

```
[root@vanilla-rawhide ~]# rpm -q dnf
dnf-3.5.1-1.fc30.noarch
[root@vanilla-rawhide ~]#
[root@vanilla-rawhide ~]# dnf copr enable -y mvadkert/beakerlib-libraries
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/dnf/util.py", line 128, in _urlopen
    libdnf.repo.Downloader.downloadURL(conf._config if conf else None, url, fo.fileno())
RuntimeError: Status code: 404 for https://copr.fedorainfracloud.org/coprs/mvadkert/beakerlib-libraries/repo/fedora-30/                                                                                          

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/dnf", line 58, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 179, in user_main
    errcode = main(args)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 64, in main
    return _main(base, args, cli_class, option_parser_class)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 99, in _main
    return cli_run(cli, base)
  File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 115, in cli_run
    cli.run()
  File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 1049, in run
    return self.command.run()
  File "/usr/lib/python3.7/site-packages/dnf-plugins/copr.py", line 200, in run
    self._download_repo(project_name, repo_filename, chroot)
  File "/usr/lib/python3.7/site-packages/dnf-plugins/copr.py", line 339, in _download_repo
    f = self.base.urlopen(self.copr_url + api_path, mode='w+')
  File "/usr/lib/python3.7/site-packages/dnf/base.py", line 2311, in urlopen
    return dnf.util._urlopen(url, self.conf, repo, mode, **kwargs)
  File "/usr/lib/python3.7/site-packages/dnf/util.py", line 130, in _urlopen
    raise IOError(e.args[1])
IndexError: tuple index out of range

```

Not sure why we are seeing this, but looking @ dnf copr plugin:

https://github.com/rpm-software-management/dnf-plugins-core/blob/ac2299980c8ae0012aa5f82a3bbe083ce27ac21a/plugins/copr.py#L308

    if "Rawhide" in dist:
        chroot = ("fedora-rawhide-x86_64")

It uses rawhide if it finds rawhide in dist, where dist is:

    from platform import linux_distribution
    linux_distribution()

I guess something has changed

Not sure why we are seeing this, but looking @ dnf copr plugin:

https://github.com/rpm-software-management/dnf-plugins-core/blob/ac2299980c8ae0012aa5f82a3bbe083ce27ac21a/plugins/copr.py#L308

    if "Rawhide" in dist:
        chroot = ("fedora-rawhide-x86_64")

It uses rawhide if it finds rawhide in dist, where dist is:

    from platform import linux_distribution
    linux_distribution()

I guess something has changed

I hope that problem will be fixed soon.

One of the issues in this bug, IndexError: tuple index out of range, should be fixed by this PR: https://github.com/rpm-software-management/dnf/pull/1225

This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle.
Changing version to '31'.

This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle.
Changing version to 31.

This message is a reminder that Fedora 31 is nearing its end of life.
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Fedora 31 changed to end-of-life (EOL) status on 2020-11-24. Fedora 31 is
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