Repository Synchronization

Mon, 01 Jan 0001 00:00:00 +0000

Moved

Repository synchronization is now handled by the Repository Controller.

See:

Caching Behavior

Mon, 01 Jan 0001 00:00:00 +0000

Overview

The Package Cache optimizes performance by storing repository data in memory (CR Cache) or database (DB Cache) to avoid redundant Git operations. The caching system uses lazy loading, version-based refresh, and concurrency control to balance performance with data freshness.

High-Level Architecture

┌─────────────────────────────────────────────────────────┐
│ Caching System │
│ │
│ ┌──────────────┐ ┌──────────────┐ ┌──────┐ │
│ │ Cache │ │ Version │ │ Git │ │
│ │ Population │ ───> │ Tracking │ ───> │ Repo │ │
│ │ │ │ │ │ │ │
│ │ • Lazy Load │ │ • Compare │ │ │ │
│ │ • Refresh │ │ • Refresh │ │ │ │
│ └──────────────┘ └──────────────┘ └──────┘ │
│ │ │ │
│ └──────────┬───────────┘ │
│ ↓ │
│ ┌──────────────────┐ │
│ │ Cache Structure │ │
│ │ │ │
│ │ • Maps │ │
│ │ • Mutex │ │
│ │ • Consistency │ │
│ └──────────────────┘ │
└─────────────────────────────────────────────────────────┘

Cache Population

The cache uses lazy loading and version-based refresh to minimize Git operations. While the cache provides the data storage and access interfaces, the Repository Controller orchestrates background sync operations that populate and refresh the cache on configurable schedules.

Cache Functionality on Porch Documentation

Repository Synchronization

Caching Behavior

Overview

High-Level Architecture

Cache Population