feat: add intelligent output filtering for /run and /test commands #4746
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- Add output_filter.py module with smart truncation that preserves error info - Extract error-related lines from middle section when truncating - Filter common noise patterns (pip downloads, progress bars, etc.) - Integrate filtering into cmd_run with user feedback on truncation - Add comprehensive test coverage (22 tests)
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PR Description:
Closes #4730
Summary
Adds intelligent output filtering for /run and /test commands to reduce token usage when command output is very long, while preserving important error information.
Changes
New aider/output_filter.py module:
Smart truncation that keeps head (50 lines) and tail (100 lines) when output exceeds 200 lines
Extracts error-related lines from the truncated middle section with context
Recognizes error patterns across multiple languages (Python, Rust, Go, JavaScript, Java)
Filters common noise patterns (pip downloads, progress bars, etc.)
Updated aider/commands.py:
Integrates output filtering into cmd_run
Shows truncation info in confirmation prompt and output message
New tests/basic/test_output_filter.py:
22 tests covering all filtering functionality