Method get

src/utils/git/gitFilesystem.ts:463–485

* Get a cached value by key. On first call for a key, computes and caches it. * Subsequent calls return the cached value until a watched file changes, * which marks the entry dirty. The next get() re-computes from disk. * * Race condition handling: dirty is cleared BEFORE the async compu

(key: string, compute: () => Promise<T>)

   * get() will re-read again rather than serving a stale value.
   */
  async get<T>(key: string, compute: () => Promise<T>): Promise<T> {
    await this.ensureStarted()
    const existing = this.cache.get(key)
    if (existing && !existing.dirty) {
      return existing.value as T
    }
    // Clear dirty before compute — if the file changes again during the
    // async read, invalidate() will re-set dirty and we'll re-read on
    // the next get() call.
    if (existing) {
      existing.dirty = false
    }
    const value = await compute()
    // Only update the cached value if no new invalidation arrived during compute
    const entry = this.cache.get(key)
    if (entry && !entry.dirty) {
      entry.value = value
    }
    if (!entry) {
      this.cache.set(key, { value, dirty: false, compute })
    }
    return value
  }

  /** Reset all state. Stops file watchers. For testing only. */
  reset(): void {