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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * Licensed to Elasticsearch B.V. under one or more contributor | ||
| * license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright | ||
| * ownership. Elasticsearch B.V. licenses this file to you under | ||
| * the Apache License, Version 2.0 (the "License"); you may | ||
| * not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
|
|
||
| import { inspect } from 'util'; | ||
|
|
||
| import exitHook from 'exit-hook'; | ||
|
|
||
| import { ToolingLog } from '../tooling_log'; | ||
| import { isFailError } from './fail'; | ||
|
|
||
| export type CleanupTask = () => void; | ||
|
|
||
| export class Cleanup { | ||
| static setup(log: ToolingLog, helpText: string) { | ||
| const onUnhandledRejection = (error: any) => { | ||
| log.error('UNHANDLED PROMISE REJECTION'); | ||
| log.error( | ||
| error instanceof Error | ||
| ? error | ||
| : new Error(`non-Error type rejection value: ${inspect(error)}`) | ||
| ); | ||
| process.exit(1); | ||
| }; | ||
|
|
||
| process.on('unhandledRejection', onUnhandledRejection); | ||
|
|
||
| const cleanup = new Cleanup(log, helpText, [ | ||
| () => process.removeListener('unhandledRejection', onUnhandledRejection), | ||
| ]); | ||
|
|
||
| cleanup.add(exitHook(() => cleanup.execute())); | ||
|
|
||
| return cleanup; | ||
| } | ||
|
|
||
| constructor( | ||
| private readonly log: ToolingLog, | ||
| public helpText: string, | ||
| private readonly tasks: CleanupTask[] | ||
| ) {} | ||
|
|
||
| add(task: CleanupTask) { | ||
| this.tasks.push(task); | ||
| } | ||
|
|
||
| execute(topLevelError?: any) { | ||
| const tasks = this.tasks.slice(0); | ||
| this.tasks.length = 0; | ||
|
|
||
| for (const task of tasks) { | ||
| try { | ||
| task(); | ||
| } catch (error) { | ||
| this.onError(error); | ||
| } | ||
| } | ||
|
|
||
| if (topLevelError) { | ||
| this.onError(topLevelError); | ||
| } | ||
| } | ||
|
|
||
| private onError(error: any) { | ||
| if (isFailError(error)) { | ||
| this.log.error(error.message); | ||
|
|
||
| if (error.showHelp) { | ||
| this.log.write(this.helpText); | ||
| } | ||
|
|
||
| process.exitCode = error.exitCode; | ||
| } else { | ||
| this.log.error('UNHANDLED ERROR'); | ||
| this.log.error(error); | ||
| process.exitCode = 1; | ||
| } | ||
| } | ||
| } |
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