rpmtools

Provides basic functionality to download and extract a source RPM file, whilst applying any patch files found.

Dependencies

The tool rpmbuild must be installed. I didn't want to recreate what rpmbuild or rpmspec does, especially parsing specfiles, and python-rpm-spec didn't seem to correctly parse all macros.

Library

Given a path to a local file it extracts the SRPM in the output directory and parses the specfile and makes those fields available in an RpmSpec struct

RpmSpecFromFile("cri-o-1.20.0-1.module_f34+10489+4277ba4d.src.rpm", "/tmp/")

Attempt to work out which field in the specfile is source0:

source0, _ := r.GetSource0()

Get license information:

r.Tags["license"]

Apply any patches associated in the source rpm:

if err := r.ApplyPatches(); err != nil {
    fmt.Println(err.Error())
}

Cleanup any rpmbuild build folders, i.e. reset state before RpmSpecFromFile

r.Cleanup()

Dev container

Due to the reliance on rpm, it's easier just to use the dev container functionality of VSCode to do dev. Or just develop on an RPM system.