Templating less

superset-frontend/scripts/compileLess.ts

@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import * as fs from 'fs';
+import * as path from 'path';
+import Handlebars from 'handlebars';
+import { supersetTheme } from '../packages/superset-ui-core/src/style/index'; // Adjust the path as needed
+
+Handlebars.escapeExpression = (value: string) => value;
+
+// Function to apply a template and generate the output
+function applyTemplate(filePath: string): void {
+  try {
+    // Read the .less.hbs template
+    const templateContent = fs.readFileSync(filePath, 'utf-8');
+
+    // Compile the template
+    const template = Handlebars.compile(templateContent, { noEscape: true });
+
+    // Generate the final .less file
+    const result = template({ theme: supersetTheme });
+
+    // Write the output to a .less file
+    const outputFilePath = filePath.replace('.hbs', ''); // Remove .hbs for output
+    fs.writeFileSync(outputFilePath, result, 'utf-8');
+
+    console.log(`Themed .less file generated: ${outputFilePath}`);
+  } catch (error) {
+    console.error(`Failed to process template: ${filePath}`, error);
+  }
+}
+
+function findHbsFiles(dir: string): string[] {
+  const files = fs.readdirSync(dir);
+  return files
+    .map((file: string) => {
+      const fullPath = path.join(dir, file);
+      if (fs.statSync(fullPath).isDirectory()) {
+        return findHbsFiles(fullPath);
+      } else if (fullPath.endsWith('.less.hbs')) {
+        return fullPath;
+      }
+      return null;
+    })
+    .flat()
+    .filter((filePath: string | null): filePath is string => filePath !== null);
+}
+
+// Find all `.less.hbs` files in the directory
+const hbsFiles = findHbsFiles('src/assets/stylesheets/');
+
+// Apply templates to all `.less.hbs` files found
+hbsFiles.forEach((filePath: string) => applyTemplate(filePath));