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https://github.com/verdaccio/verdaccio.git
synced 2024-12-16 21:56:25 -05:00
72 lines
1.3 KiB
JavaScript
72 lines
1.3 KiB
JavaScript
'use strict';
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const fs = require('fs');
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const Path = require('path');
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/**
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* Handle local database.
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* FUTURE: must be a plugin.
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*/
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class LocalData {
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/**
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* Load an parse the local json database.
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* @param {*} path the database path
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*/
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constructor(path) {
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this.path = path;
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try {
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this.data = JSON.parse(fs.readFileSync(this.path, 'utf8'));
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} catch(_) {
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this.data = {list: []};
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}
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}
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/**
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* Add a new element.
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* @param {*} name
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*/
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add(name) {
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if (this.data.list.indexOf(name) === -1) {
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this.data.list.push(name);
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this.sync();
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}
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}
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/**
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* Remove an element from the database.
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* @param {*} name
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*/
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remove(name) {
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const i = this.data.list.indexOf(name);
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if (i !== -1) {
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this.data.list.splice(i, 1);
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}
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this.sync();
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}
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/**
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* Return all database elements.
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* @return {Array}
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*/
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get() {
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return this.data.list;
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}
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/**
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* Syncronize {create} database whether does not exist.
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*/
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sync() {
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// Uses sync to prevent ugly race condition
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try {
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require('mkdirp').sync(Path.dirname(this.path));
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} catch(err) {
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// perhaps a logger instance?
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/* eslint no-empty:off */
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}
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fs.writeFileSync(this.path, JSON.stringify(this.data));
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}
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}
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module.exports = LocalData;
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