[duplicate-code] Duplicate Code Analysis Report

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🔍 Duplicate Code Analysis Report

Analysis of commit db3ff1f

Summary

This analysis identified 3 significant duplication patterns in the codebase that impact maintainability and create opportunities for refactoring. The patterns span multiple packages including internal/logger and internal/cmd, with a total of ~200+ lines of duplicated or highly similar code.

Detected Patterns

This analysis found 3 significant duplication patterns:

1. Logger Initialization Boilerplate - Severity: High - See sub-issue #aw_abc123def456
2. Flag Environment Variable Getters - Severity: Medium - See sub-issue #aw_789ghi012jkl
3. Global Logging Function Repetition - Severity: Medium - See sub-issue #aw_345mno678pqr

Overall Impact

• Total Duplicated Lines: ~200+ lines of similar/duplicated code
• Affected Files: 8 Go files across 2 packages (logger, cmd)
• Maintainability Risk: High - Changes to patterns require updates across multiple files
• Refactoring Priority: High for Pattern 1, Medium for Patterns 2-3

Key Findings

1. Logger Package (High Priority)

• 4 logger files share nearly identical initialization patterns
• Each logger reimplements: file opening, error handling, mutex setup, global state management
• Total duplication: ~120+ lines across FileLogger, JSONLLogger, MarkdownLogger, ServerFileLogger

2. Flag Package (Medium Priority)

• 3 getDefault functions* with identical structure in flags_logging.go
• Additional similar function in flags_difc.go
• Pattern: Check env var → parse/validate → fallback to default
• Total duplication: ~40+ lines

3. Global Logging Functions (Medium Priority)

• 4 LogLevel functions (Info/Warn/Error/Debug) repeated across 3 logger files
• Each set: 4 functions × ~8 lines = ~32 lines per file
• Total duplication: ~96+ lines across file_logger.go, markdown_logger.go, server_file_logger.go

Next Steps

1. Review individual pattern sub-issues for detailed analysis
2. Prioritize refactoring based on severity and impact (start with Pattern 1)
3. Create implementation plan for highest priority patterns
4. Consider extracting common utilities to shared helper functions

Analysis Metadata

• Analyzed Files: 68 Go files (non-test)
• Detection Method: Serena semantic code analysis + pattern matching
• Commit: db3ff1f
• Analysis Date: 2026-02-07T10:08:14.613Z
• Trigger: Recent commit adding configurable payload size threshold (Add configurable payload size threshold for inline vs disk storage #790)

AI generated by Duplicate Code Detector

• expires on Feb 14, 2026, 10:13 AM UTC