refactor: log relative paths for file

[algomaster99]

The paths currently logged in the STDOUT are absolute. For example, if you run ./run_macaron.sh find-source -purl pkg:maven/fr.inria.gforge.spoon/[email protected], it logs the paths where the results are written to:

2025-03-26 14:22:07,335 [INFO] Setting the output directory to /home/macaron/output
2025-03-26 14:22:07,336 [INFO] The logs will be stored in debug.log
2025-03-26 14:22:07,877 [INFO] Found repository for PURL: https://github.com/INRIA/spoon
2025-03-26 14:22:07,877 [INFO] Found commit for PURL: 48659c68e53e742c562380281b90bdb76239691e
2025-03-26 14:22:07,878 [INFO] Writing report to: /home/macaron/output/reports/maven/fr_inria_gforge_spoon/spoon-core/spoon-core.source.json
2025-03-26 14:22:07,878 [INFO] Report written to: /home/macaron/output/reports/maven/fr_inria_gforge_spoon/spoon-core/spoon-core.source.json

However, these absolute paths exist only inside the docker container that run_macaron spawns and not on the host machine. To get valid paths for container and host machine, it is better to output relative paths which means stripping /home/macaron from it. Thus, I wrap paths in some places with os.path.relpath(path, os.getcwd()). I assume that WORKDIR inside docker is set to MACARON_WORKSPACE. I have only tested my changes against the local build only.

Note that this is not much of an issue if someone runs macaron without using the container.

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[algomaster99]

I will come back to this when my OCA is approved.

[algomaster99]

I selected the wrong target, sorry 😓 Closing and continuing #1029.

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