dependency/lib/dependency.js

Resolve and List node module dependencies for given files.

// Generated by CoffeeScript 1.3.3
(function() {
  var Dependency, async, coffee, fs, js2coffee, path, util, v, _, _ref;

  _ref = (function() {
    var _i, _len, _ref, _results;
    _ref = ['fs', 'path', 'coffee-script', 'js2coffee', 'util', 'async', 'underscore'];
    _results = [];
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      v = _ref[_i];
      _results.push(require(v));
    }
    return _results;
  })(), fs = _ref[0], path = _ref[1], coffee = _ref[2], js2coffee = _ref[3], util = _ref[4], async = _ref[5], _ = _ref[6];

  module.exports = Dependency = (function() {

    function Dependency(localOnly) {
      this.localOnly = localOnly != null ? localOnly : false;
      this.dependencies = {};
    }

    Dependency.prototype.read = function(file, cb) {
      var files, _i, _len,
        _this = this;
      files = [];
      if (!util.isArray(file)) {
        file = [file];
      }
      for (_i = 0, _len = file.length; _i < _len; _i++) {
        v = file[_i];
        files.push(path.resolve(v));
      }
      return this.asyncRead(files, function() {
        return cb(_this.dependencies);
      });
    };

    Dependency.prototype.readFile = function(file, cb) {
      var extname, rfile,
        _this = this;
      extname = path.extname(file);
      rfile = file;
      if (extname === '') {
        rfile = file + '.coffee';
      }
      return fs.readFile(rfile, 'utf8', function(err, body) {
        if (!err) {
          return cb(err, '.coffee', body);
        } else {
          rfile = file + '.js';
          return fs.readFile(rfile, 'utf8', function(err, body) {
            return cb(err, '.js', body);
          });
        }
      });
    };

    Dependency.prototype._read = function(file, cb) {
      var _this = this;
      return this.readFile(file, function(err, extname, body) {
        var files, jserror, nodes;
        if (err) {
          console.log(err);
          return cb();
        } else {
          _this.dependencies[file] = {
            children: [],
            extname: extname
          };
          jserror = false;
          files = [];
          if (extname === '.js') {
            try {
              body = js2coffee.build(body);
            } catch (e) {
              jserror = true;
              console.log(e);
            }
          }
          if (jserror) {
            return cb();
          } else {
            nodes = coffee.nodes(body);
            _this._parseNode(nodes, file, false, false, files);
            files = _(files).uniq();
            if (files.length !== 0) {
              return _this.asyncRead(files, cb);
            } else {
              return cb();
            }
          }
        }
      });
    };

    Dependency.prototype.asyncRead = function(files, cb) {
      var _this = this;
      return async.forEach(files, function(v, callback) {
        return _this._read(v, function() {
          return callback();
        });
      }, function() {
        return cb();
      });
    };

    Dependency.prototype.trim = function(str) {
      return str.replace(/^\'/, '').replace(/\'$/, '').replace(/^\"/, '').replace(/\"$/, '');
    };

    Dependency.prototype.isRequire = function(node, file, parent, gparent, files) {
      var fname, moduleName, _i, _len, _ref1, _ref2, _results;
      if (node.value === 'require') {
        _ref1 = gparent.args;
        _results = [];
        for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
          v = _ref1[_i];
          if ((((_ref2 = v.base) != null ? _ref2.value : void 0) != null) && (v.base.value.match(/^'.*'$/) !== null || v.base.value.match(/^'.*'$/) !== null)) {
            moduleName = this.trim(v.base.value);
            if (moduleName.match(/\.{1,2}/) !== null) {
              fname = path.join(path.dirname(file), moduleName);
              if (!(this.dependencies[fname] != null)) {
                files.push(fname);
              }
            } else if (!this.localOnly) {
              fname = moduleName;
            } else {
              fname = false;
            }
            if (fname !== false) {
              this.dependencies[file].children.push(fname);
              _results.push(this.dependencies[file].children = _(this.dependencies[file].children).uniq());
            } else {
              _results.push(void 0);
            }
          } else {
            _results.push(void 0);
          }
        }
        return _results;
      }
    };

    Dependency.prototype._parseNode = function(node, file, parent, gparent, files) {
      var i, k, _i, _len, _results, _results1;
      this.isRequire(node, file, parent, gparent, files);
      if (util.isArray(node)) {
        _results = [];
        for (i = _i = 0, _len = node.length; _i < _len; i = ++_i) {
          v = node[i];
          _results.push(this._parseNode(v, file, node, parent, files));
        }
        return _results;
      } else if (typeof node === 'object') {
        _results1 = [];
        for (k in node) {
          v = node[k];
          if (v != null) {
            _results1.push(this._parseNode(v, file, node, parent, files));
          } else {
            _results1.push(void 0);
          }
        }
        return _results1;
      }
    };

    Dependency.prototype.addExtname = function(file, extname) {
      if (path.extname(file) === '') {
        return file + extname;
      } else {
        return file;
      }
    };

    Dependency.prototype.listLocalFiles = function() {
      var k, locals, v2, _i, _len, _ref1, _ref2;
      locals = [];
      _ref1 = this.dependencies;
      for (k in _ref1) {
        v = _ref1[k];
        if (k.match(/^\//) !== null) {
          locals.push(this.addExtname(k, v.extname));
        }
        _ref2 = v.children;
        for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
          v2 = _ref2[_i];
          if (v2.match(/^\//) !== null && (this.dependencies[v2] != null)) {
            locals.push(this.addExtname(v2, this.dependencies[v2].extname));
          }
        }
      }
      return _(locals).uniq();
    };

    Dependency.prototype.listNodeModules = function() {
      var k, modules, v2, _i, _len, _ref1, _ref2;
      modules = [];
      _ref1 = this.dependencies;
      for (k in _ref1) {
        v = _ref1[k];
        if (k.match(/^\//) === null) {
          modules.push(k);
        }
        _ref2 = v.children;
        for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
          v2 = _ref2[_i];
          if (v2.match(/^\//) === null) {
            modules.push(v2);
          }
        }
      }
      return _(modules).uniq();
    };

    return Dependency;

  })();

}).call(this);