62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
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# Task ID: 99
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**Title:** Add Cache Key with Stage File Hash
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**Status:** done
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**Dependencies:** 98 ✓
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**Priority:** medium
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**Description:** Include the stage file hash in cache keys so cached artifacts are automatically invalidated when stage code changes.
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**Details:**
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Modify `src/mcplocal/src/proxymodel/executor.ts`:
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```typescript
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import { readFile, stat } from 'fs/promises';
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import { createHash } from 'crypto';
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import { join } from 'path';
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const STAGES_DIR = join(process.env.HOME ?? '', '.mcpctl', 'stages');
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const stageFileHashes: Map<string, string> = new Map();
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async function getStageFileHash(stageName: string): Promise<string> {
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// Check if custom stage file exists
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const filePath = join(STAGES_DIR, `${stageName}.ts`);
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try {
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const content = await readFile(filePath, 'utf-8');
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const hash = createHash('sha256').update(content).digest('hex').slice(0, 8);
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stageFileHashes.set(stageName, hash);
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return hash;
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} catch {
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// Built-in stage, use version-based hash or fixed value
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return 'builtin-v1';
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}
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}
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// In executePipeline, compute cache key:
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const stageHash = await getStageFileHash(stageConfig.type);
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const cacheKey = [
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'stage',
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stageConfig.type,
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stageHash,
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cache.hash(currentContent),
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cache.hash(JSON.stringify(stageConfig.config ?? {})),
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].join(':');
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// Use pipeline-level cache wrapping:
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if (proxyModel.spec.cacheable) {
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const cached = await cache.get(cacheKey);
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if (cached) {
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currentContent = cached;
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continue; // Skip stage execution
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}
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}
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```
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**Test Strategy:**
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Unit tests: changing stage file content changes the hash, built-in stages have stable hash, cache miss when stage file changes, cache hit when stage file unchanged.
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