valknarness 98ddac97e8 feat: implement incremental indexing and remove proactive rate limit ...

Major performance improvements for CI builds:

1. **Removed proactive rate limit threshold**
   - No longer waits at 500 remaining requests
   - Uses full 5000 request quota before forced wait
   - Maximizes work per rate limit cycle

2. **Implemented incremental indexing**
   - Checks if repository already exists in database
   - Compares last_commit (pushedAt) to detect changes
   - Only fetches README for new or updated repositories
   - Skips README fetch for unchanged repos (major time savings)

3. **Increased timeout to GitHub maximum**
   - Job timeout: 180m → 360m (6 hours, GitHub free tier max)
   - Script timeout: 170m → 350m
   - Allows full first-run indexing to complete

Impact on performance:

**First run (empty database):**
- Same as before: ~25,000 repos need full indexing
- Will use all 360 minutes but should complete

**Subsequent runs (incremental):**
- Only fetches READMEs for changed repos (~5-10% typically)
- Dramatically faster: estimated 30-60 minutes instead of 360
- Makes daily automated builds sustainable

Files changed:
- lib/github-api.js: Removed proactive rate limit check
- lib/indexer.js: Added incremental indexing logic
- .github/workflows/build-database.yml: Increased timeout to 360m

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-10-28 09:57:02 +01:00

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