cache_dir #16
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cache_dir #16
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WalkthroughIntroduces an environment-aware caching mechanism in src/utils/cache.ts with support for disabling caching via DISABLE_CACHE and serverless-aware cache directories. Adds a commented Cache Configuration block to .env.example documenting DISABLE_CACHE. Read/write and maintenance methods now early-return when caching is disabled and handle directory creation fallbacks. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant App
participant Env as Env Vars
participant Cache as TopicCache
participant FS as Filesystem
App->>Cache: new TopicCache()
Cache->>Env: Read DISABLE_CACHE, VERCEL/NETLIFY, NODE_ENV
alt DISABLE_CACHE === true
Cache-->>App: cacheDir=""
note right of Cache: Caching disabled\nAll ops become no-ops
else Serverless env detected
Cache->>FS: ensure /tmp/.cache
alt mkdir ok
Cache-->>App: cacheDir="/tmp/.cache"
else mkdir fails
Cache->>FS: ensure /tmp/cache-fallback
alt fallback ok
Cache-->>App: cacheDir="/tmp/cache-fallback"
else fallback fails
Cache-->>App: cacheDir=""
end
end
else Non-serverless
Cache->>FS: ensure ./.cache
alt ok
Cache-->>App: cacheDir="./.cache"
else fail -> fallback flow
Cache->>FS: ensure /tmp/cache-fallback
alt ok
Cache-->>App: cacheDir="/tmp/cache-fallback"
else fail
Cache-->>App: cacheDir=""
end
end
end
App->>Cache: getManimCode(key)
alt cacheDir=="" or file missing/expired
Cache-->>App: null
else
Cache->>FS: read file
Cache-->>App: data
end
App->>Cache: setManimCode(key, data)
alt cacheDir==""
Cache-->>App: no-op (log)
else
Cache->>FS: write file
Cache-->>App: done
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Poem
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Summary by CodeRabbit
New Features
Bug Fixes
Documentation
Refactor