59 lines
No EOL
1.5 KiB
JavaScript
59 lines
No EOL
1.5 KiB
JavaScript
const logger = require('./logger.js');
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const realpath = require('fs').realpath;
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const stat = require('fs').stat;
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function exit(err, code) {
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if (code === undefined) {
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code = 0;
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if (err !== undefined) {
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code = 1;
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}
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}
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if (err) {
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logger.error(err);
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logger.error(global.appName + ' ' + global.appVersion + ' ended due to an error');
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} else {
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logger.info(global.appName + ' ' + global.appVersion + ' shutting down gracefully')
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}
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process.exit(code);
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}
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async function fileExists(file) {
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if (file === undefined) {
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throw new Error('can not check the existence of an undefined file');
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}
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let path = await resolvePath(file);
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return await new Promise((resolve, reject) => {
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stat(path, (err, stats) => {
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if (err) {
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reject(err);
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}
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resolve({ path, stats });
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})
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});
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}
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async function resolvePath(file) {
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if (file === undefined) {
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throw new Error('can not resolve a path to an undefined file');
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}
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return await new Promise((resolve, reject) => {
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realpath(file, (err, resolvedPath) => {
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if (err) {
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reject(new Error('resolving path \'' + file + '\' encountered an error >>> ' + err));
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}
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resolve(resolvedPath);
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})
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});
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}
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async function sleep(milliseconds) {
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return new Promise(resolve => setTimeout(resolve, milliseconds));
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}
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module.exports = {
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exit,
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fileExists,
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resolvePath,
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sleep
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}; |