Fix fetch-lnd-if-needed.js to work with local TurboLnd tarball

Author: hsjoberg

scripts/fetch-lnd-if-needed.js

@@ -3,6 +3,7 @@ const path = require("path");
 const { spawnSync } = require("child_process");
 
 const repoRoot = path.resolve(__dirname, "..");
+const packageJson = require(path.join(repoRoot, "package.json"));
 const turboLndRoot = path.join(repoRoot, "node_modules", "react-native-turbo-lnd");
 const turboLndPackagePath = path.join(turboLndRoot, "package.json");
 const turboLndFetchPath = path.join(turboLndRoot, "fetch-lnd.js");
@@ -16,6 +17,14 @@ try {
     process.exit(0);
   }
 
+  const declaredDependency = packageJson.dependencies?.["react-native-turbo-lnd"] ?? "";
+  if (declaredDependency.startsWith("file:")) {
+    console.log(
+      `[postinstall] react-native-turbo-lnd is using a local path (${declaredDependency}); skipping binary fetch.`,
+    );
+    process.exit(0);
+  }
+
   const { version: installedVersion } = JSON.parse(fs.readFileSync(turboLndPackagePath, "utf8"));
   if (!installedVersion) {
     console.warn(