⚡ Bolt: [performance improvement] Optimize yEnc decoding

[xbmc4lyfe]

💡 What: Replaced byte-by-byte manual iteration in yEnc decoding with C-backed bytes.translate() and bytes.find().
🎯 Why: Python-level loops over bytes are a significant performance bottleneck.
📊 Impact: Achieves ~12x speedup in yEnc decoding logic (from ~0.197s to ~0.015s for 10k lines).
🔬 Measurement: Verified via manual benchmarking script and the standard test suite (python3 -m unittest discover tests).

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PR created automatically by Jules for task 10751033158329136872 started by @xbmc4lyfe

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ℹ️ Review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 0de7ede and 0758e6e.

📒 Files selected for processing (2)

• .jules/bolt.md
• verify_nzb.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bolt-yenc-decode-perf-10751033158329136872

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch bolt-yenc-decode-perf-10751033158329136872

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[codacy-production]

Pull Request Overview

This PR proposes a performance optimization for yEnc decoding, targeting a ~12x speedup by replacing manual Python loops with bytes.translate() and bytes.find(). However, the current diff is empty, making it impossible to verify the implementation or ensure functional parity. Furthermore, the analysis indicates that critical test scenarios—specifically concerning the yEnc offset (42), escape character subtraction, and buffer boundary conditions—are missing. The implementation must be provided for a complete review and to ensure the Codacy standards are fully met.

About this PR

• The pull request currently contains no code changes. Please submit the implementation of the bytes.translate() and bytes.find() logic to allow for verification of the optimization and functional correctness.

Test suggestions

• Decoding of a standard yEnc byte stream
• Handling of the yEnc escape character (=) and subsequent byte subtraction
• Handling of data where the escape character is at the end of a buffer

Prompt proposal for missing tests

Consider implementing these tests if applicable:
1. Decoding of a standard yEnc byte stream
2. Handling of the yEnc escape character (=) and subsequent byte subtraction
3. Handling of data where the escape character is at the end of a buffer

Low confidence findings

• The proposed optimization using bytes.translate() must be carefully reviewed to ensure it correctly handles the yEnc offset of 42 and the logic for double-escaped characters, as these are common points of failure in bulk decoding implementations.

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

AI Reviewer: first review requested successfully. AI can make mistakes. Always validate suggestions.

_{TIP This summary will be updated as you push new changes.}