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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| import pathModule from "path" | ||
| import fs from "fs-extra" | ||
| import { type RotatingFileStream, createStream } from "rotating-file-stream" | ||
| import { Semaphore } from "../semaphore" | ||
|
|
||
| export class Logger { | ||
| private readonly path: string | ||
| private readonly debugPath: string | ||
| private readonly errorPath: string | ||
| private readonly infoPath: string | ||
| private readonly warnPath: string | ||
| private readonly debugStream: RotatingFileStream | ||
| private readonly infoStream: RotatingFileStream | ||
| private readonly errorStream: RotatingFileStream | ||
| private readonly warnStream: RotatingFileStream | ||
| private readonly infoMutex = new Semaphore(1) | ||
| private readonly debugMutex = new Semaphore(1) | ||
| private readonly errorMutex = new Semaphore(1) | ||
| private readonly warnMutex = new Semaphore(1) | ||
|
|
||
| public constructor(dbPath: string) { | ||
| this.path = pathModule.join(dbPath, "logs") | ||
| this.debugPath = pathModule.join(this.path, "debug.log") | ||
| this.errorPath = pathModule.join(this.path, "error.log") | ||
| this.infoPath = pathModule.join(this.path, "info.log") | ||
| this.warnPath = pathModule.join(this.path, "warn.log") | ||
|
|
||
| fs.ensureFileSync(this.debugPath) | ||
| fs.ensureFileSync(this.errorPath) | ||
| fs.ensureFileSync(this.infoPath) | ||
| fs.ensureFileSync(this.warnPath) | ||
|
|
||
| this.debugStream = createStream(this.debugPath, { | ||
| size: "10M", | ||
| interval: "5m", | ||
| compress: "gzip", | ||
| maxFiles: 3, | ||
| encoding: "utf-8" | ||
| }) | ||
|
|
||
| this.infoStream = createStream(this.infoPath, { | ||
| size: "10M", | ||
| interval: "5m", | ||
| compress: "gzip", | ||
| maxFiles: 3, | ||
| encoding: "utf-8" | ||
| }) | ||
|
|
||
| this.warnStream = createStream(this.warnPath, { | ||
| size: "10M", | ||
| interval: "5m", | ||
| compress: "gzip", | ||
| maxFiles: 3, | ||
| encoding: "utf-8" | ||
| }) | ||
|
|
||
| this.errorStream = createStream(this.errorPath, { | ||
| size: "10M", | ||
| interval: "5m", | ||
| compress: "gzip", | ||
| maxFiles: 3, | ||
| encoding: "utf-8" | ||
| }) | ||
| } | ||
|
|
||
| public log(level: "info" | "debug" | "warn" | "error", object: unknown, where?: string): void { | ||
| // eslint-disable-next-line no-extra-semi | ||
| ;(async () => { | ||
| const mutex = | ||
| level === "info" | ||
| ? this.infoMutex | ||
| : level === "debug" | ||
| ? this.debugMutex | ||
| : level === "warn" | ||
| ? this.warnMutex | ||
| : this.errorMutex | ||
|
|
||
| await mutex.acquire() | ||
|
|
||
| try { | ||
| const stream = | ||
| level === "info" | ||
| ? this.infoStream | ||
| : level === "debug" | ||
| ? this.debugStream | ||
| : level === "warn" | ||
| ? this.warnStream | ||
| : this.errorStream | ||
|
|
||
| if ( | ||
| !stream.writable || | ||
| stream.destroyed || | ||
| stream.errored || | ||
| stream.closed || | ||
| stream.writableEnded || | ||
| stream.writableFinished | ||
| ) { | ||
| return | ||
| } | ||
|
|
||
| const log = `[${level}] [${new Date()}] ${where ? `[${where}] ` : ""}${JSON.stringify(object)}` | ||
|
|
||
| await new Promise<void>(resolve => { | ||
| stream.write(`${log}\n`, () => { | ||
| resolve() | ||
| }) | ||
| }) | ||
| } finally { | ||
| mutex.release() | ||
| } | ||
| })() | ||
| } | ||
| } | ||
|
|
||
| export default Logger |
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