Un used files (images) not shows in warning for EPUBChecker 5.0.0

[Prithiviraj]

Hi Team,

As we verified using EPUBChecker 5.0.0 with Rule 3.3. The Unused Files (Images) warning is not displayed in the new version, but the warnings are displayed in epubcheck-4.2.6 with 3.2 Rule, as shown below.

Validating using EPUB version 3.2 rules.
WARNING(OPF-003): $$$.epub(-1,-1): Item "OEBPS/images/Art_P25a.jpg" exists in the EPUB, but is not declared in the OPF manifest.
WARNING(OPF-003): $$$.epub(-1,-1): Item "OEBPS/images/Art_P57a.jpg" exists in the EPUB, but is not declared in the OPF manifest.
WARNING(OPF-003): $$$.epub(-1,-1): Item "OEBPS/images/Art_P57b.jpg" exists in the EPUB, but is not declared in the OPF manifest.

However, the most recent version of epubcheck (5.0.0) with 3.3 Rule does not display the above Warnings.

Customers have complained that there are unused images in the ePub file. Please verify and take the appropriate action right away.

Thanks,
Prithiviraj M

[Matt Garrish]

Unused files in the container aren't a violation of the specification so the warning was reduced to a usage message. If you turn on usage messages when running epubcheck you'll still get reports of any files not listed in the manifest.

[Prithiviraj]

Hi Matt,

Thank you for your responses. Could you kindly advise on how to enable (turn on) the usage message while epubcheck is running?

Thanks,
Prithiviraj M

[Matt Garrish]

Start it with the -u or --usage parameters. You can find more information here: https://github.com/w3c/epubcheck/wiki/Running