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fix(build): automatically choose data-retrieval option #983

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Merged
c-dilks merged 1 commit into from
Dec 4, 2025
Merged

fix(build): automatically choose data-retrieval option #983

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32 changes: 28 additions & 4 deletions build-coatjava.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ GENERAL OPTIONS

DATA RETRIEVAL OPTIONS
How to retrieve magnetic field maps, neural network models, etc.;
choose only one:
choose only one, e.g., if the automated default choice fails:
--lfs use Git Large File Storage (requires `git-lfs`)
--cvmfs use CernVM-FS (requires `/cvfms`)
--xrootd use XRootD (requires `xrootd`)
Expand Down Expand Up @@ -80,10 +80,34 @@ do
esac
done

# Currently only git-lfs works from offsite:
if ! [[ $(hostname) == *.jlab.org ]]; then
echo "INFO: using --lfs for offsite usage"
# count how many data-retrieval options are set
count_download_opts() {
local n=0
for o in $useLfs $useCvmfs $useXrootd; do
$o && ((n++))
done
echo $n
}

# if the user did not choose a data retrieval method, choose a reasonable one
if [[ $(count_download_opts) -eq 0 ]]; then
echo 'INFO: no data-retrieval option set; choosing a default...'
if ! [[ $(hostname) == *.jlab.org ]]; then
echo 'INFO: ... using `--lfs` since you are likely offsite'
useLfs=true
elif [ -d /cvmfs ]; then
echo 'INFO: ... using `--cvmfs` since you are likely onsite and have /cvmfs'
useCvmfs=true
else
echo 'WARNING: default data-retrieval option cannot be determined; use `--help` for guidance' >&2
sleep 1
fi
fi

# if they chose too many, fail
if [[ $(count_download_opts) -gt 1 ]]; then
echo 'ERROR: more than one data-retrieval option is set' >&2
exit 1
fi


Expand Down