fix: windows paths

Author: marvinhagemeister

src/dev/dev_build_cache.ts

@@ -10,7 +10,7 @@ import { encodeHex } from "@std/encoding/hex";
 import { crypto } from "@std/crypto";
 import { fsAdapter } from "../fs.ts";
 import type { FileTransformer } from "./file_transformer.ts";
-import { assertInDir } from "../utils.ts";
+import { assertInDir, pathToSpec } from "../utils.ts";
 import type { ResolvedBuildConfig } from "./builder.ts";
 import { fsItemsToCommands, type FsRouteFile } from "../fs_routes.ts";
 import type { Command } from "../commands.ts";
@@ -358,7 +358,7 @@ import staticFileData from "./static-files.json" with { type: "json" };
 ${
         islands
           .map((item) => {
-            const spec = path.relative(outDir, item.server);
+            const spec = pathToSpec(path.relative(outDir, item.server));
             return `import * as ${item.name} from "${spec}";`;
           })
           .join("\n")
@@ -368,7 +368,7 @@ ${
 ${
         this.#fsRoutes.files
           .map((item, i) => {
-            const spec = path.relative(outDir, item.filePath);
+            const spec = pathToSpec(path.relative(outDir, item.filePath));
             return `import * as fsRoute_${i} from "${spec}"`;
           })
           .join("\n")

src/utils.ts

@@ -63,3 +63,8 @@ export class UniqueNamer {
     return name;
   }
 }
+
+const PATH_TO_SPEC = /[\\/]+/g;
+export function pathToSpec(str: string): string {
+  return str.replaceAll(PATH_TO_SPEC, "/");
+}

src/utils_test.ts

@@ -1,5 +1,5 @@
 import { expect } from "@std/expect";
-import { escapeScript, pathToExportName } from "./utils.ts";
+import { escapeScript, pathToExportName, pathToSpec } from "./utils.ts";
 
 Deno.test("filenameToExportName", () => {
   expect(pathToExportName("/islands/foo.tsx")).toBe("foo");
@@ -52,3 +52,9 @@ Deno.test("escapeScript - json", () => {
     "\\u003C!--<\\/ScRIpt>",
   );
 });
+
+Deno.test("pathToSpec", () => {
+  expect(pathToSpec("/foo/bar")).toEqual("/foo/bar");
+  expect(pathToSpec("\\foo\\bar")).toEqual("/foo/bar");
+  expect(pathToSpec("\\\\foo//bar")).toEqual("/foo/bar");
+});