mix metastatic.complexity (Metastatic v0.10.4)

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Analyzes code complexity for a given file.

Usage

mix metastatic.complexity FILE [options]

Options

  • --format - Output format: text (default), json, or detailed
  • --language - Source language: python, elixir, or erlang (auto-detected if not specified)
  • --max-cyclomatic - Cyclomatic complexity threshold (default: 10)
  • --max-cognitive - Cognitive complexity threshold (default: 15)
  • --max-nesting - Nesting depth threshold (default: 3)
  • --lines - Analyze specific line range (e.g., "10-50") - extracted code must be valid
  • --function - Analyze specific function by name (all clauses combined for multi-clause functions)

Examples

# Basic complexity analysis
mix metastatic.complexity my_file.py

# JSON output
mix metastatic.complexity my_file.py --format json

# Detailed report
mix metastatic.complexity my_file.ex --format detailed

# Custom thresholds
mix metastatic.complexity my_file.erl --max-cyclomatic 15 --max-cognitive 20

# Analyze specific line range
mix metastatic.complexity my_file.py --lines 10-50

# Analyze specific function (all clauses combined)
mix metastatic.complexity my_file.ex --function complex
mix metastatic.complexity my_file.ex --function factorial

Exit Codes

  • 0 - All metrics within thresholds
  • 1 - Warnings (exceeded thresholds)
  • 2 - Error during analysis