1 files changed, 12 insertions, 1 deletions
diff --git a/lib/plugin.js b/lib/plugin.js
index f558bf8..3d60321 100644
--- a/lib/plugin.js
+++ b/lib/plugin.js
@@ -29,6 +29,9 @@ var Plugin = function(book, name) {
 
 // Type of plugins resources
 Plugin.RESOURCES = ["js", "css"];
+Plugin.HOOKS = [
+    "init", "finish"
+]
 
 // Load from a name
 Plugin.prototype.load = function(name, baseDir) {
@@ -100,13 +103,21 @@ Plugin.prototype.getResources = function(base) {
 
 // Test if it's a valid plugin
 Plugin.prototype.isValid = function() {
-    return (
+    var that = this;
+    var isValid = (
         this.packageInfos &&
         this.packageInfos.name &&
         this.packageInfos.engines &&
         this.packageInfos.engines.gitbook &&
         semver.satisfies(pkg.version, this.packageInfos.engines.gitbook)
     );
+
+    // Valid hooks
+    _.each(this.infos.hooks, function(hook, hookName) {
+        that.book.log.warn.ln("Hook '"+hookName+" 'used by plugin '"+that.packageInfos.name+"' has been removed or is deprecated");
+    });
+
+    return isValid;
 };
 
 // Resolve file path