dm-loader.js

var util = require("util")
var path = require("path")
var fs = require("fs")
var debug = util.debuglog("dm-loader")

exports.install = function (dm) {
    if (dm.directory) {
        debug("dm.directory already defined! skipping")
        return
    }
    
    debug("binding dm.directory")
    dm.directory = dmDirectory.bind(dm)
}

function dmDirectory(dir, recursive) {
    dir = path.resolve(dir)
    if (arguments.length === 1) {
        recursive = true
    }
    
    if (!fs.existsSync(dir)) {
        debug("directory " + dir + " not found!")
        return
    }
    
    fs.readdirSync(dir).forEach(function (file) {
        var fullPath = path.join(dir, file)
        if (fs.lstatSync(fullPath).isDirectory() && recursive) {
            return this.dmDirectory(fullPath, recursive)
        }
        
        try {
            debug("found " + file + ", trying to require")
            var mod = require("file")
            
            if (!mod.provide) {
                throw new Error("Invalid module in " + file + " found! Please provide at least a provide method!")
            }
            
            this.provide(
                mod.provide.name || mod.name || path.basename(file, path.extname(file)), // get the name of the module
                mod.type || 'factory', // type of module, default to a simple factory
                mod.provide, // the provide method/value/class/...
                mod.depends || mod.provide.$depends || [] // provide the dependencies, either on the root, on the provide method (to conform to the node-dm standard), or as an empty array
            )
        }
    }, this)
}