use XDG data directory for log files

playwriter/package.json

@@ -48,6 +48,7 @@
     "string-dedent": "^3.0.2",
     "user-agents": "^1.1.669",
     "ws": "^8.18.3",
+    "xdg-basedir": "^5.1.0",
     "zod": "^3"
   }
 }

playwriter/src/mcp.ts

@@ -11,7 +11,7 @@ import { fileURLToPath } from 'node:url'
 import vm from 'node:vm'
 import dedent from 'string-dedent'
 import { createPatch } from 'diff'
-import { getCdpUrl } from './utils.js'
+import { getCdpUrl, getLogFilePath } from './utils.js'
 import { waitForPageLoad, WaitForPageLoadOptions, WaitForPageLoadResult } from './wait-for-page-load.js'
 import { getCDPSessionForPage, CDPSession } from './cdp-session.js'
 
@@ -92,7 +92,7 @@ const lastSnapshots: WeakMap<Page, string> = new WeakMap()
 const cdpSessionCache: WeakMap<Page, CDPSession> = new WeakMap()
 
 const RELAY_PORT = 19988
-const LOG_FILE_PATH = process.env.PLAYWRITER_LOG_PATH || path.join(os.tmpdir(), 'playwriter-relay-server.log')
+const LOG_FILE_PATH = getLogFilePath()
 const NO_TABS_ERROR = `No browser tabs are connected. Please install and enable the Playwriter extension on at least one tab: https://chromewebstore.google.com/detail/playwriter-mcp/jfeammnjpkecdekppnclgkkffahnhfhe`
 
 

playwriter/src/start-relay-server.ts

@@ -1,12 +1,12 @@
 import { startPlayWriterCDPRelayServer } from './extension/cdp-relay.js'
 import fs from 'node:fs'
-import path from 'node:path'
-import os from 'node:os'
 import util from 'node:util'
+import { ensureDataDir, getLogFilePath } from './utils.js'
 
-const logFilePath = process.env.PLAYWRITER_LOG_PATH || path.join(os.tmpdir(), 'playwriter-relay-server.log')
+const logFilePath = getLogFilePath()
 
 process.title = 'playwriter-ws-server'
+ensureDataDir()
 fs.writeFileSync(logFilePath, '')
 
 const log = (...args: any[]) => {

playwriter/src/utils.ts

@@ -1,4 +1,37 @@
+import fs from 'node:fs'
+import path from 'node:path'
+import { xdgData } from 'xdg-basedir'
+
 export function getCdpUrl({ port = 19988, host = '127.0.0.1' }: { port?: number; host?: string } = {}) {
   const id = `${Math.random().toString(36).substring(2, 15)}_${Date.now()}`
   return `ws://${host}:${port}/cdp/${id}`
 }
+
+export function getDataDir(): string {
+  return path.join(xdgData!, 'playwriter')
+}
+
+export function ensureDataDir(): string {
+  const dataDir = getDataDir()
+  if (!fs.existsSync(dataDir)) {
+    fs.mkdirSync(dataDir, { recursive: true })
+  }
+  return dataDir
+}
+
+export function getLogFilePath(): string {
+  return process.env.PLAYWRITER_LOG_PATH || path.join(getDataDir(), 'relay-server.log')
+}
+
+// export function getDidPromptReviewPath(): string {
+//   return path.join(getDataDir(), 'did-prompt-review')
+// }
+
+// export function hasReviewedPrompt(): boolean {
+//   return fs.existsSync(getDidPromptReviewPath())
+// }
+
+// export function markPromptReviewed(): void {
+//   ensureDataDir()
+//   fs.writeFileSync(getDidPromptReviewPath(), new Date().toISOString())
+// }

pnpm-lock.yaml

@@ -93,6 +93,9 @@ importers:
       ws:
         specifier: ^8.18.3
         version: 8.18.3(bufferutil@4.0.9)
+      xdg-basedir:
+        specifier: ^5.1.0
+        version: 5.1.0
       zod:
         specifier: ^3
         version: 3.25.76
@@ -2701,6 +2704,10 @@ packages:
       utf-8-validate:
         optional: true
 
+  xdg-basedir@5.1.0:
+    resolution: {integrity: sha512-GCPAHLvrIH13+c0SuacwvRYj2SxJXQ4kaVTT5xgL3kPrz56XxkF21IGhjSE1+W0aw7gpBWRGXLCPnPby6lSpmQ==}
+    engines: {node: '>=12'}
+
   xml-name-validator@5.0.0:
     resolution: {integrity: sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==}
     engines: {node: '>=18'}
@@ -5479,6 +5486,8 @@ snapshots:
     optionalDependencies:
       bufferutil: 4.0.9
 
+  xdg-basedir@5.1.0: {}
+
   xml-name-validator@5.0.0:
     optional: true