38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
import { readFile, writeFile } from 'node:fs/promises'
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import { join } from 'node:path'
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import yaml from 'yaml'
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const dataDir = join(process.cwd(), 'data')
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const cache = new Map<string, { data: unknown; mtime: number }>()
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export async function readYaml<T = unknown>(relativePath: string): Promise<T> {
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const filePath = join(dataDir, relativePath)
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const cached = cache.get(filePath)
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if (cached && Date.now() - cached.mtime < 5000) {
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return cached.data as T
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}
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const raw = await readFile(filePath, 'utf-8')
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const data = yaml.parse(raw) as T
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cache.set(filePath, { data, mtime: Date.now() })
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return data
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}
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export async function writeYaml(relativePath: string, data: unknown): Promise<void> {
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const filePath = join(dataDir, relativePath)
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const raw = yaml.stringify(data, { lineWidth: 120 })
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await writeFile(filePath, raw, 'utf-8')
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cache.delete(filePath)
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}
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export function invalidateCache(relativePath?: string): void {
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if (relativePath) {
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cache.delete(join(dataDir, relativePath))
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}
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else {
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cache.clear()
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}
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}
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