skip testrunner related files/folders from ocm

[IndritFejza]

Skip testunner related folders to be considered in merge-ocm-fragments action

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[gardener-prow]

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[IndritFejza]

If you don't agree with the proposal what would be another way to skip non-ocm related directories from being processed by the action? 😊

In general, the script seems to not like folders that contain subfolders.
So, regardless of testrunner, if we have an artifact that is a folder that contains subfolders, the script fails.

debug: sub-directory ./A contains:
B
C.json
debug: sub-directory ./A/B contains:
ls: cannot access './A/B': No such file or directory

[TuanAnh17N]

thanks for the pr!
the [ ! -d "$d" ] guard fixes the immediate crash, but i'd suggest a different approach that avoids hardcoding caller-specific directory names in this shared action.

the root cause seems to be that the flatetning loop iterates over all subdirectories, including non-ocm artifacts. since ocm fragments are always .tar.gz files (that's the contract of export-ocm-fragemnts), we can just move those directly instead of flattening everything, i think 🤔

find . -mindepth 2 -name "*.tar.gz" -exec mv {} . \;

echo "extracting files with pattern *.tar.gz"
for tarffile in $(find . -maxdepth 1 -name "*.tar.gz"); do
  echo "extracting ${tarfile} into $PWD"
  tar xf "${tarfile}"
  unlnk "${tarfile}"
done

since the flattening loop can't be removed entirely - download-artifact@v3 (used on GHE) doesn't support merge-multiple (according to the comment above) - scoping it to .tar.gz files, seems right to me