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Legacy Code

Code that may be deprecated or no longer actively maintained.

Overview​

This document identifies code that:

  • Hasn't been modified in 6+ months
  • May be deprecated
  • Could be candidates for removal or refactoring

How to Identify Legacy Code​

Run the git activity analysis script:

cd /Users/stef/apps/sprout/sprout_docs
./scripts/git-activity-analysis.sh

The script identifies files with no commits in the last 6 months.

Analysis Method​

Legacy code is identified by:

  • Files with no commits in 6+ months
  • Unused imports or dependencies
  • Deprecated patterns or libraries
  • Code marked as deprecated in comments

Common Legacy Patterns​

Unused Code​

  • Functions or classes never called
  • Dead code paths
  • Commented-out code

Deprecated Libraries​

  • Old versions of libraries
  • Libraries replaced by newer alternatives
  • Unmaintained dependencies

Old Patterns​

  • Patterns replaced by better alternatives
  • Legacy API usage
  • Outdated best practices

Handling Legacy Code​

Before Removing​

  1. Verify code is truly unused
  2. Check for any references
  3. Review git history for context
  4. Consider migration path if needed

Refactoring​

  1. Identify improvement opportunities
  2. Plan refactoring approach
  3. Update tests
  4. Document changes

Deprecation​

  1. Mark as deprecated in code
  2. Add deprecation warnings
  3. Document migration path
  4. Set removal timeline

Repository-Specific Notes​

sprout_backend​

  • May have legacy API endpoints
  • Old event matching logic (if replaced)
  • Deprecated modules

sprout_etl​

  • Old pipeline configurations
  • Legacy CLI commands
  • Deprecated services

Other Repositories​

  • Check each repository for legacy patterns
  • Review documentation for deprecation notices

Next Steps​