⚡ Optimize Splitter.py by incrementally updating folder size#265
⚡ Optimize Splitter.py by incrementally updating folder size#265
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Summary of ChangesHello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request introduces a significant performance optimization to the Highlights
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Code Review
This pull request introduces a group_size_cache to optimize the Splitter.py script, which groups photos into folders based on size. The cache is propagated through relevant functions to reduce redundant get_folder_size calls, and the move_file_to_group function now returns the updated group size. Feedback suggests refactoring the cache population logic using dict.setdefault() for conciseness and combining conditional statements for initializing the group folder and cache into an if/else block for improved readability.
| if current_group_folder not in group_size_cache: | ||
| group_size_cache[current_group_folder] = get_folder_size(current_group_folder) | ||
| current_group_size = group_size_cache[current_group_folder] |
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The logic for checking and populating the cache can be made more concise and idiomatic by using dict.setdefault(). This avoids the explicit if key not in dict check and simplifies the code.
current_group_size = group_size_cache.setdefault(current_group_folder, get_folder_size(current_group_folder))| group_size_cache = {} | ||
| if current_group_folder is not None: | ||
| group_size_cache[current_group_folder] = current_group_size | ||
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| if current_group_folder is None: | ||
| current_group_folder = create_new_folder( | ||
| photos_folder, f"Group_{current_group_num}" | ||
| ) | ||
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| abs_group_folder = os.path.abspath(current_group_folder) | ||
| group_size_cache[current_group_folder] = 0 |
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The two if statements for initializing the group folder and cache are mutually exclusive. Combining them into an if/else block would make the logic clearer and more readable.
| group_size_cache = {} | |
| if current_group_folder is not None: | |
| group_size_cache[current_group_folder] = current_group_size | |
| if current_group_folder is None: | |
| current_group_folder = create_new_folder( | |
| photos_folder, f"Group_{current_group_num}" | |
| ) | |
| abs_group_folder = os.path.abspath(current_group_folder) | |
| group_size_cache[current_group_folder] = 0 | |
| group_size_cache = {} | |
| if current_group_folder is not None: | |
| group_size_cache[current_group_folder] = current_group_size | |
| else: | |
| current_group_folder = create_new_folder( | |
| photos_folder, f"Group_{current_group_num}" | |
| ) | |
| group_size_cache[current_group_folder] = 0 |
Code Review SummaryStatus: No Issues Found | Recommendation: Merge Incremental ChangesThe diff adds a mock Previous Review (carried forward)
Files Reviewed (2 files)
Note: Splitter.py is in Reviewed by minimax-m2.5-20260211 · 171,397 tokens |
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Pull request overview
This PR improves the photo grouping logic in Splitter.py by caching per-group folder sizes and updating them incrementally as files are moved, avoiding repeated full os.walk size recalculations when scanning existing Group_N directories.
Changes:
- Introduced a
group_size_cachedict to store computed sizes for group folders and reuse them inensure_space_in_group. - Updated
move_file_to_groupto return the updatedcurrent_group_sizeafter a successful move, and to keep the cache in sync. - Initialized and maintained the cache in
group_photos, including for newly created groups.
…undancy Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
💡 What: Added a
group_size_cacheto incrementally update folder sizes as files are moved into them, rather than recursively callingget_folder_sizefor existing directories during iteration.🎯 Why: Previously, calculating the whole directory size from scratch during a loop to find an available group resulted in an O(N^2) operation because every file checked would re-calculate the entire folder structure recursively if the folder already existed.
📊 Measured Improvement: Simulated grouping 50 small files across existing folders.
Note: As Python's
shutil.movedominates the operation in a tiny mock with a few folders, the real performance win scales with the depth ofos.walkneeded inget_folder_size. The O(N) cache approach definitively guarantees we only walk deep structures once.PR created automatically by Jules for task 14710452876359018312 started by @Ven0m0