version>1.5.0-SNAPSHOT

frontend/normalize-css-path.ts

@@ -0,0 +1,33 @@
+const fs = require('fs');
+
+const srcUrlRegex = /url\((\\?["'])?(?!data:)\S+(\\?["'])?\)/g;
+
+export function normalizeCssPaths(params: {paths: string[], outDir: string}) {
+  params.paths = params.paths ? params.paths : [];
+  params.paths.forEach(path => normalizeCssPath(path, params.outDir));
+}
+
+function normalizeCssPath(path: string, outputDirectory: string) {
+  console.log(`Start processing ${path}`);
+  const css: string = fs.readFileSync(path, 'utf8');
+  let counter = 0;
+
+  const processedCss = css.replace(srcUrlRegex, (srcUrl: string) => {
+    if (srcUrl.search(outputDirectory) != -1) return srcUrl;
+
+    let fileName = getFileName(srcUrl);
+    let processedUrl = `url('${outputDirectory}/${fileName}')`;
+    counter++;
+    console.log(`Replaced ${srcUrl} -> ${processedUrl}`);
+    return processedUrl;
+  });
+  console.log(`Replaced ${counter} urls`);
+  fs.writeFileSync(path, processedCss);
+}
+
+function getFileName(srcUrl: string): string {
+  let url = srcUrl.substring(4, srcUrl.length - 1); // unbox 'url(...)'
+  url = url.replace(/(\\?["'])/g, '');
+  let urlPaths = url.split('/');
+  return urlPaths[urlPaths.length - 1].split('?')[0];
+}