Changes/Rename libusb packages and deprecated old api

Rename libusb packages and deprecated old API

Summary

Rename libusb to libusb-compat-0.1 and libusbx to libusb1. Do not provide an automated update path for the old libusb build dependency as packages should–and likely can–be updated to use libusb1.

Owner

• Name: Benjamin Berg
• Email: bberg@redhat.com

Current status

• Targeted release: Fedora 34
• Last updated: 2020-12-03
• FESCo issue: #2510
• Tracker bug: <will be assigned by the Wrangler>
• Release notes tracker: <will be assigned by the Wrangler>

Detailed Description

Currently we have two related packages:

• libusb: Containing a compatibility layer of the 0.1 API for libusb 1.0
• libusbx: Containing the libusb 1.0 API, where the name "libusbx" derives from a fork that existed for a while

To make it clear that "libusb" should not be used anymore and as "libusbx" does not exist anymore, it makes sense to rename the packages as follows:

• libusb-compat-0.1 (this *is* the upstream name, see https://github.com/libusb/libusb-compat-0.1)
• libusb1

There should be no/few users left for libusb-compat-0.1, but currently some packages are incorrectly using libusb. As such, the idea is to:

• not add the corresponding Provides: line for the rename to libusb-compat-0.1-devel
• Add Provides: deprecated() to the libusb-compat-0.1 package

Benefit to Fedora

• We adhere more closely to the upstream naming scheme for libusb.
• We begin sunsetting libusb-compat-0.1 (i.e. current libusb).

Scope

• Proposal owners:

Create new libusb-compat-0.1 and libusb1 packages based on the current ones.

• Other developers: N/A (not a System Wide Change)

Review any package that uses BuildRequires: libusb-devel. Many of them will be able to switch to libusb1-devel but some may still require the compatibility layer, i.e. libusb-compat-0.1-devel.

• Release engineering: #Releng issue number (a check of an impact with Release Engineering is needed)

• Policies and guidelines: N/A (not needed for this change)

• Trademark approval: N/A (not needed for this Change)

• Alignment with Objectives: N/A

Upgrade/compatibility impact

No impact is expected.

How To Test

No further testing is needed.

Contingency Plan

Add Provides: libusb-devel to libusb-compat-0.1-devel if too many packages are not updated.

• Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
• Contingency deadline: N/A (not a System Wide Change)
• Blocks release? N/A (not a System Wide Change), Yes/No
• Blocks product? product

Documentation

N/A (not a System Wide Change)