fix: windows paths

Author: marvinhagemeister

packages/plugin-vite/src/mod.ts

@@ -12,6 +12,7 @@ import { devServer } from "./plugins/dev_server.ts";
 import { buildIdPlugin } from "./plugins/build_id.ts";
 import { clientSnapshot } from "./plugins/client_snapshot.ts";
 import { serverSnapshot } from "./plugins/server_snapshot.ts";
+import { fixWindowsPaths } from "./plugins/fix_windows.ts";
 
 export function fresh(config?: FreshViteConfig): Plugin[] {
   const fConfig: ResolvedFreshViteConfig = {
@@ -110,6 +111,7 @@ export function fresh(config?: FreshViteConfig): Plugin[] {
         "topLevelAwait",
       ],
     }),
+    fixWindowsPaths(),
     deno(),
   ];
 }

packages/plugin-vite/src/plugins/fix_windows.ts

@@ -0,0 +1,20 @@
+import type { Plugin } from "vite";
+
+// Vite by default uses `C:/` style paths on windows. When you return
+// `C:\\` paths you may end up with duplicated modules across chunks...
+export function fixWindowsPaths(): Plugin {
+  return {
+    name: "fresh:fix-windows",
+    enforce: "pre",
+    async resolveId(id, importer, options) {
+      if (Deno.build.os !== "windows") return;
+
+      const resolved = await this.resolve(id, importer, options);
+
+      if (resolved && /^[\w]+:\\/.test(resolved.id)) {
+        resolved.id = resolved.id.replaceAll(/[\\/]+/g, "/");
+        return resolved;
+      }
+    },
+  };
+}