Project: datamanagement
Issue DM-95: Make lsst-build reuse buildIDs if nothing's changed
All built packages are EUPS-tagged with build IDs (the bNNN EUPS tags). Without this change, new EUPS tags are declared even when nothing changed since the previous build (and EUPS' tags code doesn't scale well at this time). This will be implemented by comparing the newly built manifest against ones stored in versiondb, and reusing the build IDs if a matching one is found.
Story points: 1