Samuele E. Locatelli
77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
/**
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* Download tool for Unicode CLDR JSON data
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*
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* Copyright 2013 Rafael Xavier de Souza
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* Released under the MIT license
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* https://github.com/rxaviers/cldr-data-npm/blob/master/LICENSE-MIT
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*/
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"use strict";
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var AdmZip = require("adm-zip");
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var mkdirp = require("mkdirp");
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var path = require("path");
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function bowerOrPackageJson(entry) {
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return /^(bower|package)\.json/.test(entry.entryName);
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}
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function getLeadingDirectory(entry) {
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return entry.entryName.split("/")[0];
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}
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function ignore(entry) {
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entry.entryName = ".ignored-" + entry.entryName;
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}
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function prettyPath(_path) {
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var relativePath = path.relative(".", _path);
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return relativePath.length + 2 > _path.length ? _path : "./" + relativePath;
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}
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function stripLeadingDirectory(entry) {
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return entry.entryName = entry.entryName.split("/").slice(1).join("/");
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}
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function unique(sum, i) {
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if (sum.indexOf(i) === -1) {
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sum.push(i);
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}
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return sum;
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}
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function unpack(downloads, dest) {
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var zip;
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console.log("Unpacking it into `" + prettyPath(dest.path) + "`");
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mkdirp(dest.path, "0755");
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downloads.forEach(function(download) {
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var entries;
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try {
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zip = new AdmZip(download);
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entries = zip.getEntries();
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// Strip the leading directory in case it holds all files.
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if (entries.map(getLeadingDirectory).reduce(unique, []).length === 1) {
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entries.forEach(stripLeadingDirectory);
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}
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// Ignore/rename bower.json or package.json files
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entries.filter(bowerOrPackageJson).forEach(ignore);
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zip.extractAllTo(dest.path, true);
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} catch(error) {
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// AdmZip throws strings, not errors!!
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if (typeof error === "string") {
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throw new Error(error);
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}
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throw error;
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}
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});
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}
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module.exports = function(dest) {
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return function(download) {
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unpack(download, dest);
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};
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};
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