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feat: move LLM cache to project-local directory

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- Cache now lives in <project>/.pi-project-map/cache/llm-cache.json
- Removed global ~/.cache/pi-project-map/ usage
- Cache travels with the project, no cross-project collisions
- Easy to invalidate: rm -rf .pi-project-map/cache/

Files changed:
- llm-cache.ts: accept cacheDir parameter, default to project-local
- llm-extract.ts: pass cacheDir through to cache functions
- init.ts: pass rootPath as cacheDir
- patch.ts: accept and pass cacheDir
- cli.ts: pass targetPath as cacheDir
- pi-extension.ts: pass ctx.cwd as cacheDir
- Tests updated to use temp dirs for cache isolation
This commit is contained in:
Alex
2026-06-10 15:13:10 +02:00
parent 5c6719817f
commit ed9f843d65
10 changed files with 88 additions and 49 deletions
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tests/llm-cache.test.ts
+9 -9
View File
@@ -1,10 +1,10 @@
import { describe, it, expect, beforeEach, afterEach } from "vitest";
import { getCached, setCached } from "../src/llm-cache.js";
import { existsSync, unlinkSync, rmdirSync } from "fs";
import { existsSync, unlinkSync } from "fs";
import { join } from "path";
import { homedir } from "os";
import { tmpdir } from "os";
const TEST_CACHE_DIR = join(homedir(), ".cache", "pi-project-map");
const TEST_CACHE_DIR = join(tmpdir(), "pi-project-map-test-cache");
const TEST_CACHE_FILE = join(TEST_CACHE_DIR, "llm-cache.json");
describe("llm-cache", () => {
@@ -21,20 +21,20 @@ describe("llm-cache", () => {
});
it("returns undefined for missing entries", () => {
const result = getCached("nonexistent-hash");
const result = getCached("nonexistent-hash", TEST_CACHE_DIR);
expect(result).toBeUndefined();
});
it("stores and retrieves cached results", () => {
setCached("abc123", "PURPOSE: test\nDEPS: none\nCONCEPTS: none");
const result = getCached("abc123");
setCached("abc123", "PURPOSE: test\nDEPS: none\nCONCEPTS: none", TEST_CACHE_DIR);
const result = getCached("abc123", TEST_CACHE_DIR);
expect(result).toBe("PURPOSE: test\nDEPS: none\nCONCEPTS: none");
});
it("overwrites existing entries", () => {
setCached("abc123", "old");
setCached("abc123", "new");
const result = getCached("abc123");
setCached("abc123", "old", TEST_CACHE_DIR);
setCached("abc123", "new", TEST_CACHE_DIR);
const result = getCached("abc123", TEST_CACHE_DIR);
expect(result).toBe("new");
});
});