Add method .hook to plugins

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/plugins/index.js b/lib/plugins/index.js
index 6eb788b..343c569 100644
--- a/lib/plugins/index.js
+++ b/lib/plugins/index.js
@@ -95,7 +95,13 @@ PluginsManager.prototype.install = function() {
         return registry.install(that.book, plugin.name, plugin.version);
     })
     .thenResolve(plugins.length);
+};
 
+// Call a hook on all plugins to transform an input
+PluginsManager.prototype.hook = function(name, input) {
+    return Promise.reduce(this.plugins, function(current, plugin) {
+        return plugin.hook(name, current);
+    }, input);
 };
 
 module.exports = PluginsManager;