hem/lib/dependency.js

stitches CommonJS, and ties up other lose ends of web-app development.

// Generated by CoffeeScript 1.12.7
(function() {
  var Dependency, Module, compilers, detective, extname, fs, mtime, resolve,
    indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };

  extname = require('path').extname;

  fs = require('fs');

  detective = require('fast-detective');

  resolve = require('./resolve');

  compilers = require('./compilers');

  mtime = function(path) {
    return fs.statSync(path).mtime.valueOf();
  };

  Module = (function() {
    Module.walk = ['js', 'coffee'];

    function Module(request, parent) {
      var ref;
      ref = resolve(request, parent), this.id = ref[0], this.filename = ref[1];
      this.ext = extname(this.filename).slice(1);
      this.mtime = mtime(this.filename);
      this.paths = resolve.paths(this.filename);
    }

    Module.prototype.compile = function() {
      if (!this._compile || this.changed()) {
        this.mtime = mtime(this.filename);
        this._compile = compilers[this.ext](this.filename);
      }
      return this._compile;
    };

    Module.prototype.modules = function() {
      if (!this._modules || this.changed()) {
        this._modules = this.resolve();
      }
      return this._modules;
    };

    Module.prototype.changed = function() {
      return this.mtime !== mtime(this.filename);
    };

    Module.prototype.resolve = function() {
      var i, len, path, ref, results;
      ref = this.calls();
      results = [];
      for (i = 0, len = ref.length; i < len; i++) {
        path = ref[i];
        results.push(new this.constructor(path, this));
      }
      return results;
    };

    Module.prototype.calls = function() {
      var ref;
      if (ref = this.ext, indexOf.call(this.constructor.walk, ref) >= 0) {
        return detective(this.compile());
      } else {
        return [];
      }
    };

    return Module;

  })();

  Dependency = (function() {
    function Dependency(paths) {
      if (paths == null) {
        paths = [];
      }
      this.paths = paths;
    }

    Dependency.prototype.resolve = function() {
      var path;
      this.modules || (this.modules = (function() {
        var i, len, ref, results;
        ref = this.paths;
        results = [];
        for (i = 0, len = ref.length; i < len; i++) {
          path = ref[i];
          results.push(new Module(path));
        }
        return results;
      }).call(this));
      return this.deepResolve(this.modules);
    };

    Dependency.prototype.deepResolve = function(modules, result, search) {
      var i, len, module;
      if (modules == null) {
        modules = [];
      }
      if (result == null) {
        result = [];
      }
      if (search == null) {
        search = {};
      }
      for (i = 0, len = modules.length; i < len; i++) {
        module = modules[i];
        if (!(!search[module.filename])) {
          continue;
        }
        search[module.filename] = true;
        result.push(module);
        this.deepResolve(module.modules(), result, search);
      }
      return result;
    };

    return Dependency;

  })();

  module.exports = Dependency;

  module.exports.Module = Module;

}).call(this);