landers.gulp-helper/modules/dependency.js

landers.gulp-helper

let fs = require('fs');
let log = require('./log');

module.exports = {
    parsePackageJsonPath: function(package_dot_json_path){
        if (!fs.existsSync(package_dot_json_path)) return [];
        var content = fs.readFileSync(package_dot_json_path);
        var data = JSON.parse(content);
        var dependencies = data.dependencies;
        return dependencies ? Object.keys(dependencies) : [];
    },

    getPackages: function(package){
        var package_dot_json_path = './node_modules/' + package + '/package.json';
        return this.parsePackageJsonPath(package_dot_json_path);
    },

    getCurrentPackages: function(){
        return this.parsePackageJsonPath('./package.json');
    },
    getRecursionPackages: function(packages){
        var that = this;
        return packages.map(function(package){
            var packages = that.getPackages(package);
            if (packages.length) {
                packages = that.getRecursionPackages(packages);
                packages.push(package);
                return packages;
            } else {
                return package;
            }
        });
    },

    getCurrentRecursionPackages: function(){
        // 后处理常规
        var packages1 = this.getCurrentPackages();
        var packages2 = this.getRecursionPackages(packages1);
        var result = packages2.concat(packages1);
        return result.flatten().unique();
    }
}