Cleanup folder before generating output

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/output/generateBook.js b/lib/output/generateBook.js
index 6fcade0..f17997c 100644
--- a/lib/output/generateBook.js
+++ b/lib/output/generateBook.js
@@ -4,6 +4,7 @@ var Immutable = require('immutable');
 var Output = require('../models/output');
 var Config = require('../models/config');
 var Promise = require('../utils/promise');
+var fs = require('../utils/fs');
 
 var callHook = require('./callHook');
 var preparePlugins = require('./preparePlugins');
@@ -164,6 +165,17 @@ function generateBook(generator, book, options) {
             generator: generator.name
         })
     )
+
+    // Cleanup output folder
+    .then(function(output) {
+        var logger = output.getLogger();
+        var rootFolder = output.getRoot();
+
+        logger.debug.ln('cleanup folder "' + rootFolder + '"');
+        return fs.ensureFolder(rootFolder)
+            .thenResolve(output);
+    })
+
     .then(processOutput.bind(null, generator))
 
     // Log duration and end message