pattern: Use URL network location as instance name when not provided

Make the instance parameter of the base pattern lister optional and set lister name to URL network location when not provided.

It simplifies lister creation when associated forge type have a lot of instances in the wild (e.g. gitlab or cgit) while giving more details about the listed forge instance.

Also process listers for forge with multiple instances (cgit, gitea, gitlab, phabricator and tuleap) to ensure URL network location will be used when instance parameter is not provided.

Related to T3403

---

Migrated from D5989 (view on Phabricator)

Some references in the commit message have been migrated:

• T3403 is now swh/meta#3403 (closed)

Build is green

Patch application report for D5989 (id=21615)

Rebasing onto df46b220...

Current branch diff-target is up to date.

Changes applied before test

commit 6c123508634c6467b2fb9be83de69e6a5e77363a
Author: Antoine Lambert <anlambert@softwareheritage.org>
Date:   Tue Jul 13 12:33:41 2021 +0200

    pattern: Use URL network location as instance name when not provided
    
    Make the instance parameter of the base pattern lister optional and set
    lister name to URL network location when not provided.
    
    It simplifies lister creation when associated forge type have a lot of
    instances in the wild (e.g. gitlab or cgit) while giving more details
    about the listed forge instance.
    
    Also process listers for forge with multiple instances (cgit, gitea,
    gitlab, phabricator and tuleap) to ensure URL network location will be
    used when instance parameter is not provided.
    
    Related to [T3403](https://forge.softwareheritage.org/T3403 'view original for T3403 on Phabricator')

See https://jenkins.softwareheritage.org/job/DLS/job/tests-on-diff/331/ for more details.

Thanks!

Merge request was accepted

approved this merge request

Merge request was merged

closed