What measure are -qi's "size" attribute's values?

[RokeJulianLockhart]

rpm -qi 0ad returns:

Size : 17801587

What is this? b or MiB, etcetera?

[ffesti]

These are bytes. More precisely the sum of all files sizes. The usual caveats apply in that the space on disk needed will be different due to metadata, block size and directory entries.

[RokeJulianLockhart]

the sum of all files sizes.

@ffesti, that is, for the RPM which installed the package?

The usual caveats apply in that the space on disk needed will be different due to metadata, block size and directory entries.

Albeit tangential, does rpm provide a way to query the size utilised on disk? (I realise that, unless entirely containerised, whatever data it returns isn't guaranteed to be foolproof.)

[ffesti]

This is for the files in the package no matter whether it is installed or not. There are a few details, like %ghost files and ofc packages can generate files they don't own or that have variable size - like databases or caches.

To get the space used on disk you can use something along the lines of rpm -ql PACKAGE | xargs du -ch. Guess one still needs to filter out directories to not count stuff multiple times.

[pmatilai]

rpm -qlv PACKAGE will also give you file sizes, with directories zeroed they don't affect the outcome.