[Rpm-maint] [rpm-software-management/rpm] RFE: add a way to access the installed NVRA and install time without accessing an rpmdb (#459)

[Jeff Johnson]

There are many programs/applications that wish simple information about installed software, e.g. the HOST-MIB in net-snmp, or security checkers cross referencing to CVEs, where linking to rpm libraries and Berkeley DB are mind-numbing overkill.

One simple solution to supplying essentially "rpm -qa" in a dumbed down KISS fashion is to map NVRA onto the file system with an install time stamp.

A zero length file is sufficient for net-snmp. Other applications which might need more complex information can populate the contents with a --queryformat output.

The file can be maintained in sync with an rpmdb by creating/unlinking the file on the same code path as adding/erasing rpmdb headers.

I can supply pointers to code, and can do an implementation, if interested.



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