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87 lines
1.8 KiB
87 lines
1.8 KiB
'use strict';
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var path = require('path');
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var _mkdirp;
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function getMkdirp() {
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if (!_mkdirp) {
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_mkdirp = require('mkdirp');
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}
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return _mkdirp;
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}
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var _fs;
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function getFS() {
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if (!_fs) {
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_fs = require('mz/fs');
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}
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return _fs;
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}
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exports.strictJSONParse = function (str) {
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var obj = JSON.parse(str);
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if (!obj || typeof obj !== 'object') {
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throw new Error('JSON string is not object');
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}
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return obj;
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};
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exports.readJSONSync = function(filepath) {
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if (!getFS().existsSync(filepath)) {
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throw new Error(filepath + ' is not found');
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}
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return JSON.parse(getFS().readFileSync(filepath));
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};
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exports.writeJSONSync = function(filepath, str, options) {
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options = options || {};
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if (!('space' in options)) {
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options.space = 2;
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}
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getMkdirp().sync(path.dirname(filepath));
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if (typeof str === 'object') {
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str = JSON.stringify(str, options.replacer, options.space) + '\n';
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}
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getFS().writeFileSync(filepath, str);
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};
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exports.readJSON = function(filepath) {
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return getFS().exists(filepath)
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.then(function(exists) {
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if (!exists) {
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throw new Error(filepath + ' is not found');
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}
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return getFS().readFile(filepath);
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})
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.then(function(buf) {
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return JSON.parse(buf);
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});
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};
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exports.writeJSON = function(filepath, str, options) {
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options = options || {};
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if (!('space' in options)) {
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options.space = 2;
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}
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if (typeof str === 'object') {
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str = JSON.stringify(str, options.replacer, options.space) + '\n';
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}
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return mkdir(path.dirname(filepath))
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.then(function() {
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return getFS().writeFile(filepath, str);
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});
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};
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function mkdir(dir) {
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return new Promise(function(resolve, reject) {
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getMkdirp()(dir, function(err) {
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if (err) {
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return reject(err);
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}
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resolve();
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});
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});
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}
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