Commit 60bfac8

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How to log from sandboxes

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	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+console.log('Write logs with console.log');`
	`4`	`+console.dir({ example: [0, 1, 2, 3] });`
	`5`	`+console.error('Error message');`

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	`1`	`+!.gitignore`

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	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const vm = require('vm');`
	`4`	`+const fs = require('fs');`
	`5`	`+const util = require('util');`
	`6`	`+const metalog = require('metalog');`
	`7`	`+`
	`8`	`+const log = metalog({`
	`9`	`+ path: './log',`
	`10`	`+ node: 'S1N1',`
	`11`	`+ writeInterval: 5000,`
	`12`	`+ writeBuffer: 64 * 1024,`
	`13`	`+ keepDays: 5,`
	`14`	`+ toStdout: [],`
	`15`	`+}).bind('app1');`
	`16`	`+`
	`17`	`+const logInfo = (...args) => log.info(util.format(...args));`
	`18`	`+const logError = (...args) => log.error(util.format(...args));`
	`19`	`+`
	`20`	`+const context = {`
	`21`	`+ module: {},`
	`22`	`+ console: {`
	`23`	`+ log: logInfo,`
	`24`	`+ dir: logInfo,`
	`25`	`+ debug: logInfo,`
	`26`	`+ error: logError,`
	`27`	`+ },`
	`28`	`+};`
	`29`	`+`
	`30`	`+context.global = context;`
	`31`	`+const sandbox = vm.createContext(context);`
	`32`	`+`
	`33`	`+const fileName = './application.js';`
	`34`	`+fs.readFile(fileName, 'utf8', (err, src) => {`
	`35`	+ const script = new vm.Script(`module.exports = () => {\n${src}\n};`);
	`36`	`+ const execute = script.runInNewContext(sandbox);`
	`37`	`+ execute();`
	`38`	`+ log.logger.close();`
	`39`	`+});`

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