Prefer drupal namespace in Composer.

[rosiel]

GitHub Issue: Islandora/documentation#2270

Other Relevant Links

• Discussed as a possible reason for having trouble testing a pull request in slack DMs.

What does this Pull Request do?

Changes Islandora module to use the drupal composer namespace.

What's new?

• Rename the module to drupal/islandora. This alone should have the effect of making it inaccessible to people requireing islandora/islandora... therefore:

• Added a replace directive that says this package replaces islandora/islandora. This should make this package available to anyone who is requireing islandora/islandora, so long as they have the Drupal module repository in their composer file (and surely they must)

• Changed our requirement for islandora/jsonld to drupal/jsonld.

• Does this change add any new dependencies? It changes how an existing dependency is required.

• Does this change require any other modifications to be made to the repository
  (i.e. Regeneration activity, etc.)? No!

• Could this change impact execution of existing code? No.

How should this be tested?

[Help needed! It's not clear to me how to test this except to make a custom version of the starter site and require this branch? ]

With this PR, you should be able to get an islandora spun up (based on a starter site altered to remove the islandora/islandora dependency) and it would only have drupal/islandora.

With this PR merged, existing sites should not have a problem loading islandora/islandora or drupal/islandora.
[should we eventually mark packagist deprecated and suggest drupal/islandora?]

A description of what steps someone could take to:

• Reproduce the problem you are fixing (if applicable)
• Test that the Pull Request does what is intended.
• Please be as detailed as possible.
• Good testing instructions help get your PR completed faster.

Documentation Status

• Does this change existing behaviour that's currently documented?
• Does this change require new pages or sections of documentation?
• Who does this need to be documented for?
• Associated documentation pull request(s): ___ or documentation issue ___

Additional Notes:

Any additional information that you think would be helpful when reviewing this
PR.

Interested parties

Tag (@ mention) interested parties or, if unsure, @Islandora/committers

[rosiel]

Decision made to "abandon" the packagist repo first, wait three months so people have time to update their sites, and then merge this PR (which could have un-obvious repercussions to sites using Packagist).

Decision (mine) made to not use composer.json to tag this package as deprecated (except as a final commit on the islandora/islandora namespace?).

In 3 months (Aug 22, 2024) merge this PR.