fix: preserve lines commented with show-source

Close #54

Author: javier-godoy

src/main/resources/META-INF/resources/frontend/code-viewer.ts

@@ -293,10 +293,8 @@ pre[class*="language-"] {
     }
 
     return lines.filter(line=>line!==null)
-    .map(line=>{
-        let m= line!.match("^(?<spaces>\\s*)//\\s*show-source\\s(?<line>.*)");
-        return m?m.groups!.spaces+m.groups!.line : line!;
-    }).filter(line=>
+    .map(line=>line!)
+    .filter(line=>
        !line.match("//\\s*hide-source(\\s|$)")
     && !line.startsWith('@Route')
     && !line.startsWith('@PageTitle')
@@ -306,7 +304,11 @@ pre[class*="language-"] {
     && line != 'import com.vaadin.flow.router.PageTitle;'
     && line != 'import com.vaadin.flow.router.Route;'
     && line != 'import com.flowingcode.vaadin.addons.demo.DemoSource;'
-    ).join('\n');
+    ).map(line=>{
+        let m= line!.match("^(?<spaces>\\s*)//\\s*show-source\\s(?<line>.*)");
+        return m?m.groups!.spaces+m.groups!.line : line;
+    })
+    .join('\n');
   }
 
   escapeHtml(unsafe: string) {

src/test/java/com/flowingcode/vaadin/addons/demo/it/SourceCodeViewerIT.java

@@ -54,4 +54,9 @@ public void testLicenseCleanup() {
     assertEquals(expected(), open());
   }
 
+  @Test
+  public void testCleanupOverride() {
+    assertEquals(expected(), open());
+  }
+
 }

src/test/resources/com/flowingcode/vaadin/addons/demo/it/CleanupOverride.java

@@ -0,0 +1,9 @@
+import com.flowingcode.vaadin.addons.demo.DemoSource;
+import com.vaadin.flow.router.PageTitle;
+import com.vaadin.flow.router.Route;
+
+@Route("hide")
+//show-source @Route("show")
+class MyClass {
+
+}

src/test/resources/com/flowingcode/vaadin/addons/demo/it/CleanupOverride.txt

@@ -0,0 +1,4 @@
+@Route("show")
+class MyClass {
+
+}