jashkenas--coffeescript/lib/coffee-script/command.js

// Generated by CoffeeScript 1.6.1
(function() {
  var BANNER, CoffeeScript, EventEmitter, SWITCHES, compileJoin, compileOptions, compilePath, compileScript, compileStdio, exec, exists, forkNode, fs, helpers, hidden, joinTimeout, lint, notSources, optionParser, optparse, opts, outputPath, parseOptions, path, printLine, printTokens, printWarn, removeSource, sourceCode, sources, spawn, timeLog, unwatchDir, usage, version, wait, watch, watchDir, watchers, writeJs, _ref;

  fs = require('fs');

  path = require('path');

  helpers = require('./helpers');

  optparse = require('./optparse');

  CoffeeScript = require('./coffee-script');

  _ref = require('child_process'), spawn = _ref.spawn, exec = _ref.exec;

  EventEmitter = require('events').EventEmitter;

  exists = fs.exists || path.exists;

  helpers.extend(CoffeeScript, new EventEmitter);

  printLine = function(line) {
    return process.stdout.write(line + '\n');
  };

  printWarn = function(line) {
    return process.stderr.write(line + '\n');
  };

  hidden = function(file) {
    return /^\.|~$/.test(file);
  };

  BANNER = 'Usage: coffee [options] path/to/script.coffee -- [args]\n\nIf called without options, `coffee` will run your script.';

  SWITCHES = [['-b', '--bare', 'compile without a top-level function wrapper'], ['-c', '--compile', 'compile to JavaScript and save as .js files'], ['-e', '--eval', 'pass a string from the command line as input'], ['-h', '--help', 'display this help message'], ['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-j', '--join [FILE]', 'concatenate the source CoffeeScript before compiling'], ['-l', '--lint', 'pipe the compiled JavaScript through JavaScript Lint'], ['-m', '--map', 'generate source map and save as .map files'], ['-n', '--nodes', 'print out the parse tree that the parser produces'], ['--nodejs [ARGS]', 'pass options directly to the "node" binary'], ['-o', '--output [DIR]', 'set the output directory for compiled JavaScript'], ['-p', '--print', 'print out the compiled JavaScript'], ['-s', '--stdio', 'listen for and compile scripts over stdio'], ['-t', '--tokens', 'print out the tokens that the lexer/rewriter produce'], ['-v', '--version', 'display the version number'], ['-w', '--watch', 'watch scripts for changes and rerun commands']];

  opts = {};

  sources = [];

  sourceCode = [];

  notSources = {};

  watchers = {};

  optionParser = null;

  exports.run = function() {
    var literals, source, _i, _len, _results;
    parseOptions();
    if (opts.nodejs) {
      return forkNode();
    }
    if (opts.help) {
      return usage();
    }
    if (opts.version) {
      return version();
    }
    if (opts.interactive) {
      return require('./repl').start();
    }
    if (opts.watch && !fs.watch) {
      return printWarn("The --watch feature depends on Node v0.6.0+. You are running " + process.version + ".");
    }
    if (opts.stdio) {
      return compileStdio();
    }
    if (opts["eval"]) {
      return compileScript(null, sources[0]);
    }
    if (!sources.length) {
      return require('./repl').start();
    }
    literals = opts.run ? sources.splice(1) : [];
    process.argv = process.argv.slice(0, 2).concat(literals);
    process.argv[0] = 'coffee';
    _results = [];
    for (_i = 0, _len = sources.length; _i < _len; _i++) {
      source = sources[_i];
      _results.push(compilePath(source, true, path.normalize(source)));
    }
    return _results;
  };

  compilePath = function(source, topLevel, base) {
    return fs.stat(source, function(err, stats) {
      if (err && err.code !== 'ENOENT') {
        throw err;
      }
      if ((err != null ? err.code : void 0) === 'ENOENT') {
        console.error("File not found: " + source);
        process.exit(1);
      }
      if (stats.isDirectory() && path.dirname(source) !== 'node_modules') {
        if (opts.watch) {
          watchDir(source, base);
        }
        return fs.readdir(source, function(err, files) {
          var file, index, _ref1, _ref2;
          if (err && err.code !== 'ENOENT') {
            throw err;
          }
          if ((err != null ? err.code : void 0) === 'ENOENT') {
            return;
          }
          index = sources.indexOf(source);
          files = files.filter(function(file) {
            return !hidden(file);
          });
          [].splice.apply(sources, [index, index - index + 1].concat(_ref1 = (function() {
            var _i, _len, _results;
            _results = [];
            for (_i = 0, _len = files.length; _i < _len; _i++) {
              file = files[_i];
              _results.push(path.join(source, file));
            }
            return _results;
          })())), _ref1;
          [].splice.apply(sourceCode, [index, index - index + 1].concat(_ref2 = files.map(function() {
            return null;
          }))), _ref2;
          return files.forEach(function(file) {
            return compilePath(path.join(source, file), false, base);
          });
        });
      } else if (topLevel || helpers.isCoffee(source)) {
        if (opts.watch) {
          watch(source, base);
        }
        return fs.readFile(source, function(err, code) {
          if (err && err.code !== 'ENOENT') {
            throw err;
          }
          if ((err != null ? err.code : void 0) === 'ENOENT') {
            return;
          }
          return compileScript(source, code.toString(), base);
        });
      } else {
        notSources[source] = true;
        return removeSource(source, base);
      }
    });
  };

  compileScript = function(file, input, base) {
    var compiled, o, options, t, task;
    o = opts;
    options = compileOptions(file);
    try {
      t = task = {
        file: file,
        input: input,
        options: options
      };
      CoffeeScript.emit('compile', task);
      if (o.tokens) {
        return printTokens(CoffeeScript.tokens(t.input, t.options));
      } else if (o.nodes) {
        return printLine(CoffeeScript.nodes(t.input, t.options).toString().trim());
      } else if (o.run) {
        return CoffeeScript.run(t.input, t.options);
      } else if (o.join && t.file !== o.join) {
        if (helpers.isLiterate(file)) {
          t.input = helpers.invertLiterate(t.input);
        }
        sourceCode[sources.indexOf(t.file)] = t.input;
        return compileJoin();
      } else {
        compiled = CoffeeScript.compile(t.input, t.options);
        t.output = compiled;
        if (o.map) {
          t.output = compiled.js;
          t.sourceMap = compiled.v3SourceMap;
        }
        CoffeeScript.emit('success', task);
        if (o.print) {
          return printLine(t.output.trim());
        } else if (o.compile || o.map) {
          return writeJs(base, t.file, t.output, t.sourceMap);
        } else if (o.lint) {
          return lint(t.file, t.output);
        }
      }
    } catch (err) {
      CoffeeScript.emit('failure', err, task);
      if (CoffeeScript.listeners('failure').length) {
        return;
      }
      if (o.watch) {
        return printLine(err.message + '\x07');
      }
      printWarn(err instanceof Error && err.stack || ("ERROR: " + err));
      return process.exit(1);
    }
  };

  compileStdio = function() {
    var code, stdin;
    code = '';
    stdin = process.openStdin();
    stdin.on('data', function(buffer) {
      if (buffer) {
        return code += buffer.toString();
      }
    });
    return stdin.on('end', function() {
      return compileScript(null, code);
    });
  };

  joinTimeout = null;

  compileJoin = function() {
    if (!opts.join) {
      return;
    }
    if (!sourceCode.some(function(code) {
      return code === null;
    })) {
      clearTimeout(joinTimeout);
      return joinTimeout = wait(100, function() {
        return compileScript(opts.join, sourceCode.join('\n'), opts.join);
      });
    }
  };

  watch = function(source, base) {
    var compile, compileTimeout, prevStats, rewatch, watchErr, watcher;
    prevStats = null;
    compileTimeout = null;
    watchErr = function(e) {
      if (e.code === 'ENOENT') {
        if (sources.indexOf(source) === -1) {
          return;
        }
        try {
          rewatch();
          return compile();
        } catch (e) {
          removeSource(source, base, true);
          return compileJoin();
        }
      } else {
        throw e;
      }
    };
    compile = function() {
      clearTimeout(compileTimeout);
      return compileTimeout = wait(25, function() {
        return fs.stat(source, function(err, stats) {
          if (err) {
            return watchErr(err);
          }
          if (prevStats && stats.size === prevStats.size && stats.mtime.getTime() === prevStats.mtime.getTime()) {
            return rewatch();
          }
          prevStats = stats;
          return fs.readFile(source, function(err, code) {
            if (err) {
              return watchErr(err);
            }
            compileScript(source, code.toString(), base);
            return rewatch();
          });
        });
      });
    };
    try {
      watcher = fs.watch(source, compile);
    } catch (e) {
      watchErr(e);
    }
    return rewatch = function() {
      if (watcher != null) {
        watcher.close();
      }
      return watcher = fs.watch(source, compile);
    };
  };

  watchDir = function(source, base) {
    var readdirTimeout, watcher;
    readdirTimeout = null;
    try {
      return watcher = fs.watch(source, function() {
        clearTimeout(readdirTimeout);
        return readdirTimeout = wait(25, function() {
          return fs.readdir(source, function(err, files) {
            var file, _i, _len, _results;
            if (err) {
              if (err.code !== 'ENOENT') {
                throw err;
              }
              watcher.close();
              return unwatchDir(source, base);
            }
            _results = [];
            for (_i = 0, _len = files.length; _i < _len; _i++) {
              file = files[_i];
              if (!(!hidden(file) && !notSources[file])) {
                continue;
              }
              file = path.join(source, file);
              if (sources.some(function(s) {
                return s.indexOf(file) >= 0;
              })) {
                continue;
              }
              sources.push(file);
              sourceCode.push(null);
              _results.push(compilePath(file, false, base));
            }
            return _results;
          });
        });
      });
    } catch (e) {
      if (e.code !== 'ENOENT') {
        throw e;
      }
    }
  };

  unwatchDir = function(source, base) {
    var file, prevSources, toRemove, _i, _len;
    prevSources = sources.slice(0);
    toRemove = (function() {
      var _i, _len, _results;
      _results = [];
      for (_i = 0, _len = sources.length; _i < _len; _i++) {
        file = sources[_i];
        if (file.indexOf(source) >= 0) {
          _results.push(file);
        }
      }
      return _results;
    })();
    for (_i = 0, _len = toRemove.length; _i < _len; _i++) {
      file = toRemove[_i];
      removeSource(file, base, true);
    }
    if (!sources.some(function(s, i) {
      return prevSources[i] !== s;
    })) {
      return;
    }
    return compileJoin();
  };

  removeSource = function(source, base, removeJs) {
    var index, jsPath;
    index = sources.indexOf(source);
    sources.splice(index, 1);
    sourceCode.splice(index, 1);
    if (removeJs && !opts.join) {
      jsPath = outputPath(source, base);
      return exists(jsPath, function(itExists) {
        if (itExists) {
          return fs.unlink(jsPath, function(err) {
            if (err && err.code !== 'ENOENT') {
              throw err;
            }
            return timeLog("removed " + source);
          });
        }
      });
    }
  };

  outputPath = function(source, base, extension) {
    var baseDir, basename, dir, srcDir;
    if (extension == null) {
      extension = ".js";
    }
    basename = helpers.baseFileName(source, true);
    srcDir = path.dirname(source);
    baseDir = base === '.' ? srcDir : srcDir.substring(base.length);
    dir = opts.output ? path.join(opts.output, baseDir) : srcDir;
    return path.join(dir, basename + extension);
  };

  writeJs = function(base, sourcePath, js, generatedSourceMap) {
    var compile, jsDir, jsPath, sourceMapPath;
    if (generatedSourceMap == null) {
      generatedSourceMap = null;
    }
    jsPath = outputPath(sourcePath, base);
    sourceMapPath = outputPath(sourcePath, base, ".map");
    jsDir = path.dirname(jsPath);
    compile = function() {
      if (opts.compile) {
        if (js.length <= 0) {
          js = ' ';
        }
        if (generatedSourceMap) {
          js = "" + js + "\n/*\n//@ sourceMappingURL=" + (helpers.baseFileName(sourceMapPath)) + "\n*/\n";
        }
        fs.writeFile(jsPath, js, function(err) {
          if (err) {
            return printLine(err.message);
          } else if (opts.compile && opts.watch) {
            return timeLog("compiled " + sourcePath);
          }
        });
      }
      if (generatedSourceMap) {
        return fs.writeFile(sourceMapPath, generatedSourceMap, function(err) {
          if (err) {
            return printLine("Could not write source map: " + err.message);
          }
        });
      }
    };
    return exists(jsDir, function(itExists) {
      if (itExists) {
        return compile();
      } else {
        return exec("mkdir -p " + jsDir, compile);
      }
    });
  };

  wait = function(milliseconds, func) {
    return setTimeout(func, milliseconds);
  };

  timeLog = function(message) {
    return console.log("" + ((new Date).toLocaleTimeString()) + " - " + message);
  };

  lint = function(file, js) {
    var conf, jsl, printIt;
    printIt = function(buffer) {
      return printLine(file + ':\t' + buffer.toString().trim());
    };
    conf = __dirname + '/../../extras/jsl.conf';
    jsl = spawn('jsl', ['-nologo', '-stdin', '-conf', conf]);
    jsl.stdout.on('data', printIt);
    jsl.stderr.on('data', printIt);
    jsl.stdin.write(js);
    return jsl.stdin.end();
  };

  printTokens = function(tokens) {
    var strings, tag, token, value;
    strings = (function() {
      var _i, _len, _results;
      _results = [];
      for (_i = 0, _len = tokens.length; _i < _len; _i++) {
        token = tokens[_i];
        tag = token[0];
        value = token[1].toString().replace(/\n/, '\\n');
        _results.push("[" + tag + " " + value + "]");
      }
      return _results;
    })();
    return printLine(strings.join(' '));
  };

  parseOptions = function() {
    var i, o, source, _i, _len;
    optionParser = new optparse.OptionParser(SWITCHES, BANNER);
    o = opts = optionParser.parse(process.argv.slice(2));
    o.compile || (o.compile = !!o.output);
    o.run = !(o.compile || o.print || o.lint || o.map);
    o.print = !!(o.print || (o["eval"] || o.stdio && o.compile));
    sources = o["arguments"];
    for (i = _i = 0, _len = sources.length; _i < _len; i = ++_i) {
      source = sources[i];
      sourceCode[i] = null;
    }
  };

  compileOptions = function(filename) {
    return {
      filename: filename,
      literate: helpers.isLiterate(filename),
      bare: opts.bare,
      header: opts.compile,
      sourceMap: opts.map
    };
  };

  forkNode = function() {
    var args, nodeArgs;
    nodeArgs = opts.nodejs.split(/\s+/);
    args = process.argv.slice(1);
    args.splice(args.indexOf('--nodejs'), 2);
    return spawn(process.execPath, nodeArgs.concat(args), {
      cwd: process.cwd(),
      env: process.env,
      customFds: [0, 1, 2]
    });
  };

  usage = function() {
    return printLine((new optparse.OptionParser(SWITCHES, BANNER)).help());
  };

  version = function() {
    return printLine("CoffeeScript version " + CoffeeScript.VERSION);
  };

}).call(this);