Ingest Tarball now with modifiyable ownership

[HereThereBeDragons]

cvmfs_ingest has now 3 new command parameters to control ownership of files ingested:

# either
-u / --user uid
-g / --group gid
# or
-k / -keep-ownership

group can only be applied if also user is given.
if keep-ownership is set, neither user or group can be set

default behavior is to set the new owner to be the cvmfs repo owner

this ownership change only affects files, not directories. directories are always owned by the cvmfs repo owner.
(not sure if we want this.. but there the mechanics for it seems to be not in easy to reach places)

for the swissknife ingest command the new params are (no check is done if they are valid):

-U uid # if set to -1 == keep-ownership
-G gid # if set to -1 == keep-ownership

[HereThereBeDragons]

Issue #3073

[cernvm-bot]

linter finished with errors:

Done processing ttest/unittests/t_sync_union_tarball.cc:53:  Missing space after ,  [whitespace/comma] [3]
test/unittests/t_sync_union_tarball.cc:67:  Missing space after ,  [whitespace/comma] [3]
test/unittests/t_sync_union_tarball.cc:81:  Missing space after ,  [whitespace/comma] [3]

[HereThereBeDragons]

@cernvm-bot cloudtest

[HereThereBeDragons]

ps. there might be some issues with the bash?

Checking storage integrity of just.test.repo ... (may take a while)
Verifying integrity of just.test.repo...
Inspecting log of references
Inspecting tag database
[inspecting catalog] 715afbe1e841fb126189042724dd510c34f23147 at /
no problems found
/usr/bin/cvmfs_server: 2178: return: Illegal number: 
total 15K

and

*** 2) ingesting the tarball again in the directory tar_dir: everything owned by root
/usr/bin/cvmfs_server: 9236: eval: [[: not found
Using auto tag 'generic-2023-08-11T13:54:16Z'
Processing changes...
Waiting for upload of files before committing...
Committing file catalogs...
Wait for all uploads to finish

[cernvm-bot]

building for cloudtests finished: SUCCESS
https://lcgapp-services.cern.ch/cvmfs-jenkins/job/CvmfsFullBuildDocker/4063/

[cernvm-bot]

cloudtests finished: FAILURE
https://lcgapp-services.cern.ch/cvmfs-jenkins/job/CvmfsCloudTesting/1870/

[HereThereBeDragons]

@cernvm-bot unittest

[HereThereBeDragons]

@cernvm-bot help

[cernvm-bot]

Syntax: @cernvm-bot subcommand + [args]
Available commands:
help
cpplint
tidy
unittest + [full] + [linux] + [mac]
cloudtest + [full] + [nodestroy] + [cc7] + [cc8] + [container]
all

[HereThereBeDragons]

@cernvm-bot tidy

[HereThereBeDragons]

@cernvm-bot cloudtest

[cernvm-bot]

building for cloudtests finished: SUCCESS
https://lcgapp-services.cern.ch/cvmfs-jenkins/job/CvmfsFullBuildDocker/4085/

[cernvm-bot]

cloudtests finished: SUCCESS
https://lcgapp-services.cern.ch/cvmfs-jenkins/job/CvmfsCloudTesting/1884/

[HereThereBeDragons]

@cernvm-bot tidy

[vvolkl]

Very nice!