helper macros for install/removing data package

[smuzaffar]

This PR adds couple of helper macros which can use usd as

%post
%{install_shared_data_package}

%postun
%{uninstall_shared_data_package}

to make a copy of data package into share area and if all the references to shared data package are removed then also delete the shared package.

I have locally tested these macros using a testdata package (with some debug output ) and these work as expected

• Building/Installing same realversion multiple time

1. New relversion build

RPM installation stderr testdata:
Deploying: /build/muz/bld-time/w/share/external/testdata/v11/.links/arch-el8_amd64_gcc13-v11-62a15cf9e5e5e56c4aba77b9c299823c
mv bar /build/muz/bld-time/w/share/external/testdata/v11/bar
mv bla /build/muz/bld-time/w/share/external/testdata/v11/bla
mv foo /build/muz/bld-time/w/share/external/testdata/v11/foo

2. Rebuilding again i.e. realversion remain the same

RPM installation stderr testdata:
Deploying: /build/muz/bld-time/w/share/external/testdata/v11/.links/arch-el8_amd64_gcc13-v11-032866d66313672c6d52d27be3983aab
Already exists /build/muz/bld-time/w/share/external/testdata/v11/bar
Already exists /build/muz/bld-time/w/share/external/testdata/v11/bla
Already exists /build/muz/bld-time/w/share/external/testdata/v11/foo

3. Rebuilding again i.e. realversion remain the same

RPM installation stderr testdata:
Deploying: /build/muz/bld-time/w/share/external/testdata/v11/.links/arch-el8_amd64_gcc13-v11-1075c3e4c4537645d856fc1d8351c0f9
Already exists /build/muz/bld-time/w/share/external/testdata/v11/bar
Already exists /build/muz/bld-time/w/share/external/testdata/v11/bla
Already exists /build/muz/bld-time/w/share/external/testdata/v11/foo

For three different builds of same data package version, we end up with a single copy of it in share path.

• Removing installed shared data package

> cmspkg -a el8_amd64_gcc13 remove -y --delete-dir external+testdata+v11-1075c3e4c4537645d856fc1d8351c0f9
Removing package external+testdata+v11-1075c3e4c4537645d856fc1d8351c0f9
Uninstall /build/muz/bld-time/w/share/external/testdata/v11/.links/-arch-el8_amd64_gcc13-v11-1075c3e4c4537645d856fc1d8351c0f9
Not cleaning up shared installation
Removed external+testdata+v11-1075c3e4c4537645d856fc1d8351c0f9

> cmspkg -a el8_amd64_gcc13 remove -y --delete-dir external+testdata+v11-032866d66313672c6d52d27be3983aab
Removing package external+testdata+v11-032866d66313672c6d52d27be3983aab
Uninstall /build/muz/bld-time/w/share/external/testdata/v11/.links/-arch-el8_amd64_gcc13-v11-032866d66313672c6d52d27be3983aab
Not cleaning up shared installation
Removed external+testdata+v11-032866d66313672c6d52d27be3983aab

> cmspkg -a el8_amd64_gcc13 remove -y --delete-dir external+testdata+v11-62a15cf9e5e5e56c4aba77b9c299823c
Removing package external+testdata+v11-62a15cf9e5e5e56c4aba77b9c299823c
Uninstall /build/muz/bld-time/w/share/external/testdata/v11/.links/-arch-el8_amd64_gcc13-v11-62a15cf9e5e5e56c4aba77b9c299823c
Uninstall shared: /build/muz/bld-time/w/share/external/testdata/v11
Removed external+testdata+v11-62a15cf9e5e5e56c4aba77b9c299823c

[cmsbuild]

A new Pull Request was created by @smuzaffar for branch IB/CMSSW_16_1_X/master.

@akritkbehera, @cmsbuild, @iarspider, @raoatifshad, @smuzaffar can you please review it and eventually sign? Thanks.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.
cms-bot commands are listed here

[cmsbuild]

cms-bot internal usage

[smuzaffar]

please test

though as no package use these macros to nothing should build/rebuild

[smuzaffar]

+externals

as expected, nothing was re-build due to this change. These are just helper macros which data packages can use in future

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_16_1_X/master IBs after it passes the integration tests. This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @ftenchini, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-5224a7/52075/summary.html
COMMIT: 92efdf7
CMSSW: CMSSW_16_1_X_2026-03-17-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10430/52075/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @cms-sw Update tag for DQM-Integration to V00-17-00 #10428
• @cms-sw Update tag for DataFormats-L1Scouting to V00-05-00 #10427

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-5224a7/52075/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-5224a7/52075/git-merge-result

Comparison Summary

Summary:

• You potentially added 24 lines to the logs
• ROOTFileChecks: Some differences in event products or their sizes found
• Reco comparison results: 1 differences found in the comparisons
• DQMHistoTests: Total files compared: 53
• DQMHistoTests: Total histograms compared: 4185208
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 4185185
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 52 files compared)
• Checked 227 log files, 198 edm output root files, 53 DQM output files
• TriggerResults: no differences found