seperated stable and unstable branches so that docs are not generated for the unstable ones

scripts/generate/index.js

@@ -93,7 +93,8 @@ function initStep() {
 }
 
 function fetchBranchesStep() {
-  return spawnStep('git', ['fetch', '--no-tags', 'origin'].concat(branches.map(function (b) { return b + ':' + b; })), sourceDir);
+  var branchArgs = branches.map(function (b) { return b + ':' + b; });
+  return spawnStep('git', ['fetch', '--no-tags', '--force', 'origin'].concat(branchArgs), sourceDir);
 }
 
 function removePrevArchive(branch) {
@@ -121,7 +122,10 @@ function generateStep(branch) {
     async.parallel([
       argv.api && async.apply(require('./js_api'), branch),
       argv.tests && async.apply(require('./yaml_tests'), branch)
-    ].filter(Boolean), done);
+    ].filter(Boolean), function () {
+      console.log('----\n');
+      done();
+    });
   };
 }
 

scripts/generate/js_api.js

@@ -27,16 +27,22 @@ module.exports = function (branch, done) {
     aliases = require('./aliases');
   }
 
-  // generate the API
-  async.series([
+  var steps = [
     readSpecFiles,
     parseSpecFiles,
-    writeApiFile,
-    ensureDocsDir,
-    formatDocVars,
-    writeMethodDocs
-  ], function (err) {
-    console.log('');
+    writeApiFile
+  ];
+
+  if (!~utils.unstableBranches.indexOf(branch)) {
+    steps.push(
+      ensureDocsDir,
+      formatDocVars,
+      writeMethodDocs
+    );
+  }
+
+  // generate the API
+  async.series(steps, function (err) {
     done(err);
   });