index.js: fix sync problem and image copy problem

Issue: #22

Signed-off-by: Huang Rui <vowstar@gmail.com>

Author: vowstar

index.js

@@ -77,7 +77,11 @@ function processBlock(blk) {
             var destFilePath = path.join(rootPath, ASSET_PATH);
             if (fs.existsSync(ASSET_PATH)) {
                 if (!fs.existsSync(destFilePath)) {
-                    fs.mkdirs(path.join(rootPath, ASSET_PATH));
+                    fs.mkdirSync(path.join(rootPath, ASSET_PATH), { recursive: true });
+                }
+                // NOTE: fix https://github.com/vowstar/gitbook-plugin-uml/issues/22
+                // When destFilePath exist, file should copied
+                if (fs.existsSync(destFilePath)) {
                     fs.copySync(ASSET_PATH, path.join(rootPath, ASSET_PATH));
                 }
             } else {

package-lock.json

@@ -52,5 +52,5 @@
     "test": "nyc --reporter=lcov mocha --reporter spec --timeout 200000",
     "coverage": "cat ./coverage/lcov.info | coveralls"
   },
-  "version": "1.2.10"
+  "version": "1.2.11"
 }

package.json

@@ -154,4 +154,21 @@ describe('uml', function() {
                 assert(result.get(targetFile).content.includes('<polygon fill'), true);
             });
     });
+    it('should correctly generate multi puml file', function() {
+        return tester.builder()
+            .withContent('\n```puml\n@startuml\n(A)->(B)\n@enduml\n```\nHello\n```puml\n@startuml\n(C)->(D)\n@enduml\n```')
+            .withLocalPlugin(path.join(__dirname, '..'))
+            .withBookJson({
+                plugins: ['uml']
+            })
+            .create()
+            .then(function(result) {
+                var targetFile = 'assets/images/uml/39e6cfed5bc41c359e02bb07bcfcbcb365bd61eb.svg';
+                assert(result.get('index.html').content.includes(targetFile), true);
+                assert(result.get(targetFile).content.includes('<polygon fill'), true);
+                targetFile = 'assets/images/uml/b8d9c8ad9d60d1889365be04217e700042cabc04.svg';
+                assert(result.get('index.html').content.includes(targetFile), true);
+                assert(result.get(targetFile).content.includes('<polygon fill'), true);
+            });
+    });
 });