v0.4.0 — Phase 3 architecture rules + drift diff

What's new in v0.4.0

Phase 2 — Cross-file dead code detection

• unused-export (warning, weight 8) — named exports never imported anywhere
• dead-file (warning, weight 10) — source files never imported by anything
• unused-dependency (warning, weight 6) — packages in package.json never imported

Phase 3 — Structural architecture analysis

• circular-dependency (error, weight 14) — circular import chains via DFS. Reports full cycle: A → B → C → A
• layer-violation (error, weight 16) — imports that cross architectural layers (requires drift.config.ts)
• cross-boundary-import (warning, weight 10) — imports across module boundaries (requires drift.config.ts)

Phase 4 — Historical comparison

• drift diff [ref] — compare current state vs any git ref (commit, branch, tag)
• Default: HEAD~1. Shows score delta, new issues, and resolved issues per file
• Uses git show — non-destructive, no checkout, no stash
• --json flag for CI consumption

Configuration (optional)

// drift.config.ts
import type { DriftConfig } from '@eduardbar/drift'
export default {
  layers: [
    { name: 'domain', patterns: ['src/domain/**'], canImportFrom: [] },
    { name: 'app',    patterns: ['src/app/**'],    canImportFrom: ['domain'] },
    { name: 'infra',  patterns: ['src/infra/**'],  canImportFrom: ['domain', 'app'] },
  ],
} satisfies DriftConfig

21 rules total | Score 0–100 | Zero config for 19 of them

npx @eduardbar/drift@0.4.0 scan .
npx @eduardbar/drift@0.4.0 diff HEAD~1