Use jsonschema to valid and default plugins config

1 files changed, 27 insertions, 2 deletions

diff --git a/lib/plugin.js b/lib/plugin.js
index 3191c63..45d77b8 100644
--- a/lib/plugin.js
+++ b/lib/plugin.js
@@ -5,6 +5,8 @@ var path = require('path');
 var url = require('url');
 var fs = require('./utils/fs');
 var resolve = require('resolve');
+var jsonschema = require('jsonschema');
+var jsonSchemaDefaults = require('json-schema-defaults');
 
 var pkg = require('../package.json');
 
@@ -20,7 +22,7 @@ var Plugin = function(book, name) {
     _.each([
         'gitbook-plugin-'+name,
         'gitbook-'+name,
-        name,
+        name
     ], function(_name) {
         // Load from the book
         if (this.load(_name, book.root)) return false;
@@ -44,7 +46,7 @@ Plugin.prototype.load = function(name, baseDir) {
         this.baseDir = path.dirname(res);
         this.packageInfos = require(res);
         this.infos = require(resolve.sync(name, { basedir: baseDir }));
-        this.name = name;
+        this.name = this.packageInfos.name;
 
         return true;
     } catch (e) {
@@ -139,6 +141,29 @@ Plugin.prototype.isValid = function() {
     return isValid;
 };
 
+// Normalize, validate configuration for this plugin using its schema
+// Throw an error when shcema is not respected
+Plugin.prototype.validateConfig = function(config) {
+    var that = this;
+
+    return Q()
+    .then(function() {
+        var schema = that.packageInfos.gitbook || {};
+        if (!schema) return config;
+
+        // Normalize schema
+        schema.type = 'object';
+
+        // Validate and throw if invalid
+        var v = new jsonschema.Validator();
+        v.validate(config, schema);
+
+        // Insert default values
+        var defaults = jsonSchemaDefaults(schema);
+        return _.merge(defaults, config);
+    });
+};
+
 // Resolve file path
 Plugin.prototype.resolveFile = function(filename) {
     return path.resolve(this.baseDir, filename);