cherry pick fix for file links

Author: msukkari

packages/web/src/app/[domain]/search/components/codePreviewPanel/index.tsx

@@ -43,12 +43,29 @@ export const CodePreviewPanel = ({
                 .then(({ source }) => {
                     const link = (() => {
                         const template = repoUrlTemplates[fileMatch.Repository];
-                        if (!template) {
+
+                        // This is a hacky parser for templates generated by
+                        // the go text/template package. Example template:
+                        // {{URLJoinPath "https://github.com/sourcebot-dev/sourcebot" "blob" .Version .Path}}
+                        // @see: https://pkg.go.dev/text/template
+                        if (!template || !template.match(/^{{URLJoinPath\s.*}}(\?.+)?$/)) {
                             return undefined;
                         }
-                        return template
-                            .replace("{{.Version}}", branch ?? "HEAD")
-                            .replace("{{.Path}}", fileMatch.FileName);
+                        const url =
+                            template.substring("{{URLJoinPath ".length,template.indexOf("}}"))
+                            .replace(".Version", branch ?? "HEAD")
+                            .replace(".Path", fileMatch.FileName)
+                            .split(" ")
+                            .map((part) => {
+                                // remove wrapping quotes
+                                if (part.startsWith("\"")) part = part.substring(1);
+                                if (part.endsWith("\"")) part = part.substring(0, part.length - 1);
+                                return part;
+                            })
+                            .join("/");
+
+                        const optionalQueryParams = template.substring(template.indexOf("}}") + 2);
+                        return url + optionalQueryParams;
                     })();
 
                     const decodedSource = base64Decode(source);