/
server.js
84 lines (75 loc) · 1.66 KB
/
server.js
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"use strict";
const q = require('bluebird');
[
"xml2js",
"gm",
"request",
"fs",
"mkdirp",
"path"
].forEach(lib => q.promisifyAll(require(lib)));
const fs = require("fs");
// expand lodash !
function serialClassic(collection, cb) {
return new q((resolve, reject) => {
const max = collection.length;
let
i = -1,
returnValues = new Array(max);
function next() {
if (++i >= max) {
resolve(returnValues);
return false;
}
try {
returnValues[i] = cb.call({next}, collection[i], i, collection);
} catch (err) { reject(err) }
return true;
}
next();
});
};
function serialObject(obj, cb) {
return new q((resolve, reject) => {
const
keys = Object.keys(obj),
max = keys.length;
let
i = -1,
returnValues = new Array(max);
function next() {
if (++i >= max) {
resolve(returnValues);
return false;
}
let key = keys[i];
try {
returnValues[i] = cb.call({next}, obj[key], key, obj);
} catch (err) { reject(err) }
return true;
}
next();
})
};
let _ = require("lodash");
_.serial = function (collection, cb) {
const type = typeof collection;
if (type === "string" || Array.isArray(collection)) {
return serialClassic(collection, cb);
}
if (type === "object") {
return serialObject(collection, cb);
}
throw "Unexpected collection type";
};
_.noExists = function(filepath) {
return new q((resolve, reject) => {
fs.accessAsync(filepath).then(reject).catch(err => {
if (err.code === "ENOENT") {
resolve();
} else {
reject(err);
}
});
});
};