[GitHub] cordova-lib pull request: CB-9858 Cordova Fetch Work

[vladimir-kotikov <gi...@git.apache.org>]

Github user vladimir-kotikov commented on a diff in the pull request:

    https://github.com/apache/cordova-lib/pull/407#discussion_r60898584
  
    --- Diff: cordova-fetch/index.js ---
    @@ -0,0 +1,226 @@
    +/**
    + Licensed to the Apache Software Foundation (ASF) under one
    + or more contributor license agreements.  See the NOTICE file
    + distributed with this work for additional information
    + regarding copyright ownership.  The ASF licenses this file
    + to you under the Apache License, Version 2.0 (the
    + 'License'); you may not use this file except in compliance
    + with the License.  You may obtain a copy of the License at
    +
    + http://www.apache.org/licenses/LICENSE-2.0
    +
    + Unless required by applicable law or agreed to in writing,
    + software distributed under the License is distributed on an
    + 'AS IS' BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    + KIND, either express or implied.  See the License for the
    + specific language governing permissions and limitations
    + under the License.
    + */
    +
    +var Q = require('q');
    +var shell = require('shelljs');
    +var superspawn = require('cordova-common').superspawn;
    +var events = require('cordova-common').events;
    +var depls = require('dependency-ls');
    +var path = require('path');
    +var fs = require('fs');
    +var CordovaError = require('cordova-common').CordovaError;
    +var isUrl = require('is-url');
    +
    +/* 
    + * A module that npm installs a module from npm or a git url
    + *
    + * @param {String} target   the packageID or git url
    + * @param {String} dest     destination of where to install the module
    + * @param {Object} opts     [opts={save:true}] options to pass to fetch module
    + *
    + * @return {String||Promise}    Returns string of the absolute path to the installed module.
    + *
    + */
    +module.exports = function(target, dest, opts) {
    +    var fetchArgs = ['install'];
    +    opts = opts || {};
    +    var tree1;
    +
    +    if(dest && target) {
    +        //add target to fetchArgs Array
    +        fetchArgs.push(target);
    +        
    +        //append node_modules to dest if it doesn't come included
    +        if (path.basename(dest) !== 'node_modules') {
    +            dest = path.resolve(path.join(dest, 'node_modules'));
    +        }
    +        
    +        //create dest if it doesn't exist
    +        if(!fs.existsSync(dest)) {
    +            shell.mkdir('-p', dest);         
    +        } 
    +
    +    } else return Q.reject(new CordovaError('Need to supply a target and destination'));
    +
    +    //set the directory where npm install will be run
    +    opts.cwd = dest;
    +
    +    //if user added --save flag, pass it to npm install command
    +    if(opts.save) {
    +        events.emit('verbose', 'saving');
    +        fetchArgs.push('--save'); 
    +    } 
    +    
    +    //check if npm is installed
    +    isNpmInstalled();
    --- End diff --
    
    Probably it makes sense to check this at the very beginning of the method


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