fix(pglite): Fix Windows path resolution

packages/pglite/src/initdb.ts

@@ -1,12 +1,9 @@
 import { PGDATA } from "./fs/index.js";
 import EmPostgresFactory, { type EmPostgres } from "../release/postgres.js";
 import loadPgShare from "../release/share.js";
-import { nodeValues } from "./utils.js";
+import { makeLocateFile, nodeValues } from "./utils.js";
 import { DebugLevel } from "./index.js";
 
-const PGWASM_URL = new URL("../release/postgres.wasm", import.meta.url);
-const PGSHARE_URL = new URL("../release/share.data", import.meta.url);
-
 export const DIRS = [
   "global",
   "pg_wal",
@@ -61,21 +58,10 @@ export async function initDb(dataDir?: string, debug?: DebugLevel) {
         mod.FS.writeFile(PGDATA + "/base/1/PG_VERSION", "15devel");
       },
     ],
-    locateFile: (base: string, _path: any) => {
-      let path = "";
-      if (base === "share.data") {
-        path = PGSHARE_URL.toString();
-      } else if (base === "postgres.wasm") {
-        path = PGWASM_URL.toString();
-      }
-      if (path?.startsWith("file://")) {
-        path = path.slice(7);
-      }
-      return path;
-    },
+    locateFile: await makeLocateFile(),
     ...(debugMode
       ? { print: console.info, printErr: console.error }
-      : { print: () => {}, printErr: () => {} }),
+      : { print: () => { }, printErr: () => { } }),
     arguments: [
       "--boot",
       "-x1",

packages/pglite/src/pglite.ts

@@ -1,7 +1,7 @@
 import { Mutex } from "async-mutex";
 import EmPostgresFactory, { type EmPostgres } from "../release/postgres.js";
 import { type Filesystem, parseDataDir, loadFs } from "./fs/index.js";
-import { nodeValues } from "./utils.js";
+import { makeLocateFile } from "./utils.js";
 import { PGEvent } from "./event.js";
 import { parseResults } from "./parse.js";
 import { serializeType } from "./types.js";
@@ -24,9 +24,6 @@ import {
   NoticeMessage,
 } from "pg-protocol/dist/messages.js";
 
-const PGWASM_URL = new URL("../release/postgres.wasm", import.meta.url);
-const PGSHARE_URL = new URL("../release/share.data", import.meta.url);
-
 export class PGlite implements PGliteInterface {
   readonly dataDir?: string;
   readonly fsType: FilesystemType;
@@ -119,18 +116,7 @@ export class PGlite implements PGliteInterface {
           "/pgdata",
           "template1",
         ],
-        locateFile: (base: string, _path: any) => {
-          let path = "";
-          if (base === "share.data") {
-            path = PGSHARE_URL.toString();
-          } else if (base === "postgres.wasm") {
-            path = PGWASM_URL.toString();
-          }
-          if (path?.startsWith("file://")) {
-            path = path.slice(7);
-          }
-          return path;
-        },
+        locateFile: await makeLocateFile(),
         ...(this.debug > 0
           ? { print: console.info, printErr: console.error }
           : { print: () => {}, printErr: () => {} }),

packages/pglite/src/utils.ts

@@ -12,3 +12,30 @@ export async function nodeValues() {
   }
   return { dirname, require };
 }
+
+
+export async function makeLocateFile() {
+  const PGWASM_URL = new URL("../release/postgres.wasm", import.meta.url);
+  const PGSHARE_URL = new URL("../release/share.data", import.meta.url);
+  let fileURLToPath = (fileUrl: URL) => fileUrl.pathname
+  if (IN_NODE) {
+    fileURLToPath = (await import("url")).fileURLToPath
+  }
+  return (base: string) => {
+    let url: URL | null = null;
+    switch (base) {
+      case "share.data":
+        url = PGSHARE_URL;
+        break;
+      case "postgres.wasm":
+        url = PGWASM_URL;
+        break;
+      default:
+    }
+
+    if (url?.protocol === "file:") {
+      return fileURLToPath(url);
+    }
+    return url?.toString() ?? '';
+  }
+}

packages/pglite/tsup.config.ts

@@ -1,7 +1,8 @@
 import { defineConfig } from 'tsup'
 import path from 'path'
+import { fileURLToPath } from 'url'
 
-const thisFile = new URL(import.meta.url).pathname
+const thisFile = fileURLToPath(new URL(import.meta.url))
 const root = path.dirname(thisFile)
 
 let replaceAssertPlugin = {