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index.js
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index.js
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'use strict';
const path = require('path');
const os = require('os');
const fs = require('graceful-fs');
const makeDir = require('make-dir');
const xdgBasedir = require('xdg-basedir');
const writeFileAtomic = require('write-file-atomic');
const dotProp = require('dot-prop');
const uniqueString = require('unique-string');
const configDir = xdgBasedir.config || path.join(os.tmpdir(), uniqueString());
const permissionError = 'You don\'t have access to this file.';
const makeDirOptions = {mode: 0o0700};
const writeFileOptions = {mode: 0o0600};
class Configstore {
constructor(id, defaults, opts) {
opts = opts || {};
const pathPrefix = opts.globalConfigPath ?
path.join(id, 'config.json') :
path.join('configstore', `${id}.json`);
this.path = path.join(configDir, pathPrefix);
this.all = Object.assign({}, defaults, this.all);
}
get all() {
try {
return JSON.parse(fs.readFileSync(this.path, 'utf8'));
} catch (err) {
// Create dir if it doesn't exist
if (err.code === 'ENOENT') {
makeDir.sync(path.dirname(this.path), makeDirOptions);
return {};
}
// Improve the message of permission errors
if (err.code === 'EACCES') {
err.message = `${err.message}\n${permissionError}\n`;
}
// Empty the file if it encounters invalid JSON
if (err.name === 'SyntaxError') {
writeFileAtomic.sync(this.path, '', writeFileOptions);
return {};
}
throw err;
}
}
set all(val) {
try {
// Make sure the folder exists as it could have been deleted in the meantime
makeDir.sync(path.dirname(this.path), makeDirOptions);
writeFileAtomic.sync(this.path, JSON.stringify(val, null, '\t'), writeFileOptions);
} catch (err) {
// Improve the message of permission errors
if (err.code === 'EACCES') {
err.message = `${err.message}\n${permissionError}\n`;
}
throw err;
}
}
get size() {
return Object.keys(this.all || {}).length;
}
get(key) {
return dotProp.get(this.all, key);
}
set(key, val) {
const config = this.all;
if (arguments.length === 1) {
for (const k of Object.keys(key)) {
dotProp.set(config, k, key[k]);
}
} else {
dotProp.set(config, key, val);
}
this.all = config;
}
has(key) {
return dotProp.has(this.all, key);
}
delete(key) {
const config = this.all;
dotProp.delete(config, key);
this.all = config;
}
clear() {
this.all = {};
}
}
module.exports = Configstore;