need better reporting for files mentioned in Dockerfile but missing on disk

[jiridanek]

maybe I'm creating a duplicate, because we already had one instance of this happening, and maybe somebody created ticket then

when sandbox.py or generator for tekton pipelines find that there is missing file, they crash with exception

turns out developers then have trouble figuring out it's their mistake and not the tools

[jiridanek]

Here's an example of the hard to understand error

https://github.com/opendatahub-io/notebooks/actions/runs/13951200220/job/39051215307?pr=943#step:19:61

+ /home/runner/work/notebooks/notebooks/scripts/sandbox.py --dockerfile jupyter/datascience/ubi9-python-3.11/Dockerfile.cpu -- podman build --cache-from ghcr.io/opendatahub-io/notebooks/workbench-images/build-cache --tag ghcr.io/opendatahub-io/notebooks/workbench-images:jupyter-datascience-ubi9-python-3.11-943_merge_78943fcdb427d052be1f1edd281db45e867cb4c9 --file jupyter/datascience/ubi9-python-3.11/Dockerfile.cpu '{};'
2025/03/19 16:18:50 found paths: ["jupyter/datascience/ubi9-python-3.11/Pipfile.lock","jupyter/datascience/ubi9-python-3.11/mongodb-org-6.0.repo-x86_64","jupyter/datascience/ubi9-python-3.11/mssql-2022.repo-x86_64","jupyter/datascience/ubi9-python-3.11/runtime-images","jupyter/datascience/ubi9-python-3.11/setup-elyra.sh","jupyter/datascience/ubi9-python-3.11/utils","jupyter/minimal/ubi9-python-3.11/start-notebook.sh","jupyter/utils"]
__file__='/home/runner/work/notebooks/notebooks/scripts/sandbox.py' started with args=Namespace(dockerfile=PosixPath('jupyter/datascience/ubi9-python-3.11/Dockerfile.cpu'), remaining=['--', 'podman', 'build', '--cache-from', 'ghcr.io/opendatahub-io/notebooks/workbench-images/build-cache', '--tag', 'ghcr.io/opendatahub-io/notebooks/workbench-images:jupyter-datascience-ubi9-python-3.11-943_merge_78943fcdb[42](https://github.com/opendatahub-io/notebooks/actions/runs/13951200220/job/39051215307?pr=943#step:19:43)7d052be1f1edd281db45e867cb4c9', '--file', 'jupyter/datascience/ubi9-python-3.11/Dockerfile.cpu', '{};'])
prereqs=[PosixPath('jupyter/datascience/ubi9-python-3.11/Pipfile.lock'), PosixPath('jupyter/datascience/ubi9-python-3.11/mongodb-org-6.0.repo-x86_64'), PosixPath('jupyter/datascience/ubi9-python-3.11/mssql-2022.repo-x86_64'), PosixPath('jupyter/datascience/ubi9-python-3.11/runtime-images'), PosixPath('jupyter/datascience/ubi9-python-3.11/setup-elyra.sh'), PosixPath('jupyter/datascience/ubi9-python-3.11/utils'), PosixPath('jupyter/minimal/ubi9-python-3.11/start-notebook.sh'), PosixPath('jupyter/utils')]
Traceback (most recent call last):
  File "/home/runner/work/notebooks/notebooks/scripts/sandbox.py", line 82, in <module>
    sys.exit(main())
             ~~~~^^
  File "/home/runner/work/notebooks/notebooks/scripts/sandbox.py", line 44, in main
    setup_sandbox(prereqs, pathlib.Path(tmpdir))
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/notebooks/notebooks/scripts/sandbox.py", line 78, in setup_sandbox
    shutil.copy(dep, tmpdir / dep.parent)
    ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/linuxbrew/.linuxbrew/Cellar/[email protected]/3.13.2/lib/python3.13/shutil.py", line 428, in copy
    copyfile(src, dst, follow_symlinks=follow_symlinks)
    ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/linuxbrew/.linuxbrew/Cellar/[email protected]/3.13.2/lib/python3.13/shutil.py", line 260, in copyfile
    with open(src, 'rb') as fsrc:
         ~~~~^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'jupyter/datascience/ubi9-python-3.11/runtime-images'
make: *** [Makefile:128: jupyter-datascience-ubi9-python-3.11] Error 1
Error: Process completed with exit code 2.