sem
Semantic Version Control (sem)
Analyzes code changes at the semantic level, distinguishing between meaningful modifications and cosmetic/stylistic changes.
Purpose
sem helps you understand what actually changed in your code, not just what lines were modified. It identifies:
- Cosmetic changes (
~): Formatting, whitespace, style updates - Modified entities (
∆): Functions, classes, or code with actual behavioral changes - Added/removed entities (
+/-): New or deleted functions, classes, types
Key Commands
| Command | Description |
|---|---|
sem diff <rev> |
Show semantic diff of a revision |
sem diff <old>..<new> |
Show semantic diff between two revisions |
sem impact <entity> |
Show impact of changing an entity (deps/dependents) |
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