Fixed test run trigger

bin/jessie

@@ -38,4 +38,4 @@ cli.main(function(args, options) {
   jessie.run(args, options, function(fail) {
     process.exit(fail ? 1 : 0)
   })
-})
+})

bin/jezebel

@@ -0,0 +1,10 @@
+#!/usr/bin/env node
+
+var path = require('path'),
+    fs   = require('fs');
+var binDir = path.dirname(fs.realpathSync(__filename));
+var lib  = path.join(binDir, '../lib');
+require.paths.push(lib);
+
+var jezebel = require(path.join(lib, 'jezebel'));
+jezebel.run();

lib/jessie.js

@@ -9,4 +9,4 @@ exports.include = function(filename) {
 
 exports.run    = function(args, options, callback) { 
   new exports.runner(args, options, callback).run()
-};
+};

lib/jezebel.js

@@ -0,0 +1,81 @@
+var fs = require('fs'),
+    path = require('path'),
+    watcher = require('jezebel/watcher'),
+    repl = require('repl'),
+    childProcess = require('child_process'),
+    sys = require('sys');
+var binDir = fs.realpathSync(path.dirname(__filename) + '/../bin');
+
+var session;
+
+function evalInRepl(statement) {
+  process.stdin.emit('data', new Buffer(statement));
+}
+
+function triggerTestRun() {
+  evalInRepl("runTests()\n");
+}
+
+function fileChanged(path, curr, prev) {
+  if (curr.mtime.getTime() !== prev.mtime.getTime()) {
+    triggerTestRun();
+  }
+}
+
+function runTests() {
+  // This _should_ work, and would be ideal, but I get very strange behavior
+  //
+  // var sandbox = {
+  //   jessie: jessie,
+  //   Buffer: Buffer,
+  //   console: console
+  // };
+  // var script = "jessie.run(['spec'], {format: 'progress'}, function(fail) {console.log(fail);});"
+  // vm.runInNewContext(script, sandbox, 'jezebel-script');
+
+  // Running the top level script in a new context is kinda tricky :-(
+  //
+  //var scriptFile = binDir + '/jessie';
+  //var script = fs.readFileSync(scriptFile).toString();
+  //script = script.replace(/#.*/, '');
+  //var sandbox = {
+  //  require:require,
+  //  __filename: scriptFile,
+  //  __dirname: binDir,
+  //  process: {
+  //    args: ['spec'],
+  //    cwd: process.cwd,
+  //    on: process.on,
+  //    emit: process.emit
+  //  }
+  //};
+  //vm.runInNewContext(script, sandbox, scriptFile);
+
+  // In process test running. Creates a class reloading problem. :-(
+  //
+  //jessie.run(['spec'], {format: 'progress'}, function(fail) {
+  //  process.stdin.emit('data', new Buffer('\n'));
+  //})
+
+  // Out of process test running. Prevents direct access to test results :-(
+  var child = childProcess.spawn(binDir + '/jessie', ['spec']);
+  child.stdout.addListener("data", function (chunk) { chunk && sys.print(chunk) });
+  child.stderr.addListener("data", function (chunk) { chunk && sys.debug(chunk) });
+  child.on('exit', function() { evalInRepl("\n") });
+}
+
+function startRepl() {
+  session = repl.start("> ");
+  session.context.runTests = runTests;
+}
+
+// FIXME Hackity, hack, hack. For some reason, this module is not cached. Spying on a copy won't work.
+exports.repl = repl;
+
+exports.runTests = runTests;
+exports.fileChanged = fileChanged;
+exports.run = function(args, options) {
+  watcher.watchFiles(process.cwd(), fileChanged);
+  startRepl();
+  triggerTestRun();
+};

lib/jezebel/watcher.js

@@ -0,0 +1,36 @@
+var fs = require('fs');
+var fileExtensionPattern = new RegExp(".*\.(js)");
+
+function watchGivenFile (watch, callback) {
+  fs.watchFile(watch, callback);
+}
+
+function watchFiles(path, callback) {
+  fs.stat(path, function(err, stats){
+    if (err) {
+      sys.error('Error retrieving stats for file: ' + path);
+    } else {
+      if (stats.isDirectory()) {
+        fs.readdir(path, function(err, fileNames) {
+          if(err) {
+            sys.puts('Error reading path: ' + path);
+          }
+          else {
+            fileNames.forEach(function (fileName) {
+              watchFiles(path + '/' + fileName, callback);
+            });
+          }
+        });
+      } else {
+        if (path.match(fileExtensionPattern)) {
+          watchGivenFile(path, function (curr, prev) {
+            callback(path, curr, prev);
+          });
+        }
+      }
+    }
+  });
+}
+
+exports.watchFiles = watchFiles;
+