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Reduce number of created temp dirs for profiles (closes DevExpress#2735…
…, closes DevExpress#2013) (DevExpress#2740) * Reduce number of created temp dirs for profiles (closes DevExpress#2735) * Add test * Remove temp dirs in a separate process * Fix tests * Fix remarks
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| import { spawn } from 'child_process'; | ||
| import OS from 'os-family'; | ||
| import promisifyEvent from 'promisify-event'; | ||
| import Promise from 'pinkie'; | ||
| import { findProcess, killProcess } from './promisified-functions'; | ||
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| const BROWSER_CLOSING_TIMEOUT = 5; | ||
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| async function runWMIC (args) { | ||
| const wmicProcess = spawn('wmic.exe', args, { detached: true }); | ||
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| let wmicOutput = ''; | ||
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| wmicProcess.stdout.on('data', data => { | ||
| wmicOutput += data.toString(); | ||
| }); | ||
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| try { | ||
| await Promise.race([ | ||
| promisifyEvent(wmicProcess.stdout, 'end'), | ||
| promisifyEvent(wmicProcess, 'error') | ||
| ]); | ||
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| return wmicOutput; | ||
| } | ||
| catch (e) { | ||
| return ''; | ||
| } | ||
| } | ||
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| async function findProcessWin (processOptions) { | ||
| var wmicArgs = ['process', 'where', `commandline like '%${processOptions.arguments}%' and name <> 'cmd.exe' and name <> 'wmic.exe'`, 'get', 'processid']; | ||
| var wmicOutput = await runWMIC(wmicArgs); | ||
| var processList = wmicOutput.split(/\s*\n/); | ||
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| processList = processList | ||
| // NOTE: remove list's header and empty last element, caused by trailing newline | ||
| .slice(1, -1) | ||
| .map(pid => ({ pid: Number(pid) })); | ||
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| return processList; | ||
| } | ||
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| export default async function (browserId) { | ||
| var processOptions = { arguments: browserId, psargs: '-ef' }; | ||
| var processList = OS.win ? await findProcessWin(processOptions) : await findProcess(processOptions); | ||
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| if (!processList.length) | ||
| return true; | ||
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| try { | ||
| if (OS.win) | ||
| process.kill(processList[0].pid); | ||
| else | ||
| await killProcess(processList[0].pid, { timeout: BROWSER_CLOSING_TIMEOUT }); | ||
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| return true; | ||
| } | ||
| catch (e) { | ||
| return false; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| export default { | ||
| init: 'init', | ||
| add: 'add', | ||
| remove: 'remove' | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| import { spawn } from 'child_process'; | ||
| import debug from 'debug'; | ||
| import promisifyEvent from 'promisify-event'; | ||
| import Promise from 'pinkie'; | ||
| import { sendMessageToChildProcess } from '../../promisified-functions'; | ||
| import COMMANDS from './commands'; | ||
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| const WORKER_PATH = require.resolve('./worker'); | ||
| const WORKER_STDIO_CONFIG = ['ignore', 'ignore', 'ignore', 'ipc']; | ||
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| const DEBUG_LOGGER = debug('testcafe:utils:temp-directory:cleanup-process'); | ||
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| class CleanupProcess { | ||
| constructor () { | ||
| this.worker = null; | ||
| this.initialized = false; | ||
| this.initPromise = Promise.resolve(void 0); | ||
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| this.messageCounter = 0; | ||
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| this.pendingResponses = {}; | ||
| } | ||
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| _sendMessage (id, msg) { | ||
| return sendMessageToChildProcess(this.worker, { id, ...msg }); | ||
| } | ||
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| _onResponse (response) { | ||
| const pendingResponse = this.pendingResponses[response.id]; | ||
|
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| if (response.error) { | ||
| if (pendingResponse) | ||
| pendingResponse.control.reject(response.error); | ||
| else | ||
| this.pendingResponses[response.id] = Promise.reject(response.error); | ||
| } | ||
| else if (pendingResponse) | ||
| pendingResponse.control.resolve(); | ||
| else | ||
| this.pendingResponses[response.id] = Promise.resolve(); | ||
| } | ||
|
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| async _waitResponse (id) { | ||
| if (!this.pendingResponses[id]) { | ||
| const promiseControl = {}; | ||
|
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| this.pendingResponses[id] = new Promise((resolve, reject) => { | ||
| Object.assign(promiseControl, { resolve, reject }); | ||
| }); | ||
|
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| this.pendingResponses[id].control = promiseControl; | ||
| } | ||
|
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| try { | ||
| await this.pendingResponses[id]; | ||
| } | ||
| finally { | ||
| delete this.pendingResponses[id]; | ||
| } | ||
| } | ||
|
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| async _waitResponseForMessage (msg) { | ||
| const currentId = this.messageCounter; | ||
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| this.messageCounter++; | ||
|
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| await this._sendMessage(currentId, msg); | ||
| await this._waitResponse(currentId); | ||
| } | ||
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| init () { | ||
| this.initPromise = this.initPromise | ||
| .then(async initialized => { | ||
| if (initialized !== void 0) | ||
| return initialized; | ||
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| this.worker = spawn(process.argv[0], [WORKER_PATH], { detached: true, stdio: WORKER_STDIO_CONFIG }); | ||
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| this.worker.on('message', message => this._onResponse(message)); | ||
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| this.worker.unref(); | ||
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| try { | ||
| await Promise.race([ | ||
| this._waitResponseForMessage({ command: COMMANDS.init }), | ||
| promisifyEvent(this.worker, 'error') | ||
| ]); | ||
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| const channel = this.worker.channel || this.worker._channel; | ||
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| channel.unref(); | ||
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| this.initialized = true; | ||
| } | ||
| catch (e) { | ||
| DEBUG_LOGGER('Failed to start cleanup process'); | ||
| DEBUG_LOGGER(e); | ||
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| this.initialized = false; | ||
| } | ||
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| return this.initialized; | ||
| }); | ||
|
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| return this.initPromise; | ||
| } | ||
|
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| async addDirectory (path) { | ||
| if (!this.initialized) | ||
| return; | ||
|
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| try { | ||
| await this._waitResponseForMessage({ command: COMMANDS.add, path }); | ||
| } | ||
| catch (e) { | ||
| DEBUG_LOGGER(`Failed to add the ${path} directory to cleanup process`); | ||
| DEBUG_LOGGER(e); | ||
| } | ||
| } | ||
|
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| async removeDirectory (path) { | ||
| if (!this.initialized) | ||
| return; | ||
|
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| try { | ||
| await this._waitResponseForMessage({ command: COMMANDS.remove, path }); | ||
| } | ||
| catch (e) { | ||
| DEBUG_LOGGER(`Failed to remove the ${path} directory in cleanup process`); | ||
| DEBUG_LOGGER(e); | ||
| } | ||
| } | ||
| } | ||
|
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| export default new CleanupProcess(); |
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