Add experimental feature to use a hash as sim_dir.

[jonasschwab]

No description provided.

[Copilot]

Pull request overview

This PR adds an experimental option to generate Simulation.sim_dir from a hash of the full resolved parameter set, aiming to shorten directory names compared to the current directory_name(...) scheme.

Changes:

• Add sim_dir_hash kwarg to Simulation.__init__ to enable hashed directory naming.
• Introduce simple_hash() (FNV-1a 32-bit) and directory_name_hash() to compute the hashed directory name.
• Update Simulation docstring to document the experimental feature and its cautions.

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 6 comments.

Comments suppressed due to low confidence (1)

py_alf/simulation.py:16

• Import order is not isort/ruff-compliant after adding json/hashlib (CI runs ruff check with I enabled). Please sort the standard-library imports (e.g., hashlib should come before json, and the rest should be alphabetized within the stdlib block).

import hashlib
import json
import os
import re
import shutil
import subprocess
import tempfile

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

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