chore: workaround for npm 10.7 throwing `ENOWORKSPACES` (#2122)

.yarn/plugins/npm-workaround.cjs

@@ -0,0 +1,67 @@
+// @ts-check
+/**
+ * @typedef {{ values: Map<string, unknown>; }} Configuration
+ * @typedef {{ cwd: string; }} Workspace
+ * @typedef {{ configuration: Configuration; cwd: string; workspaces: Workspace[]; }} Project
+ * @typedef {{ mode?: "skip-build" | "update-lockfile"; }} InstallOptions
+ *
+ * @type {{ name: string; factory: (require: NodeRequire) => unknown; }}
+ */
+module.exports = {
+  name: "plugin-npm-workaround",
+  factory: (_require) => ({
+    hooks: {
+      /** @type {(project: Project, options: InstallOptions) => void} */
+      afterAllInstalled(project, options) {
+        // This mode is typically used by tools like Renovate or Dependabot to
+        // keep a lockfile up-to-date without incurring the full install cost.
+        if (options.mode === "update-lockfile") {
+          return;
+        }
+
+        // npm >=10.7.0 throws `ENOWORKSPACES` in monorepos:
+        // https://github.com/react-native-community/cli/pull/2457
+        if (project.configuration.values.get("nodeLinker") !== "node-modules") {
+          return;
+        }
+
+        const fs = require("node:fs");
+        const path = require("node:path");
+
+        const filesToPatch = [
+          "node_modules/@react-native-community/cli/build/tools/npm.js",
+        ];
+
+        /**
+         * @param {string} p
+         * @returns {string}
+         */
+        function normalize(p) {
+          // On Windows, paths are prefixed with `/`
+          return p.replace(/^[/\\]([^/\\]+:[/\\])/, "$1");
+        }
+
+        for (const ws of project.workspaces) {
+          for (const file of filesToPatch) {
+            const jsPath = path.join(normalize(ws.cwd), file);
+            if (!fs.existsSync(jsPath)) {
+              continue;
+            }
+
+            const js = fs.readFileSync(jsPath, { encoding: "utf-8" });
+
+            // https://github.com/npm/cli/issues/6099#issuecomment-1961995288
+            const patched = js.replaceAll(
+              "'npm config get registry'",
+              "'npm config get registry --workspaces=false --include-workspace-root'"
+            );
+
+            if (patched !== js) {
+              fs.writeFileSync(jsPath, patched);
+            }
+          }
+        }
+      },
+    },
+  }),
+};

.yarnrc.yml

@@ -43,5 +43,6 @@ plugins:
   - path: .yarn/plugins/clean.cjs
   - path: .yarn/plugins/link-project.cjs
   - path: .yarn/plugins/boost-workaround.cjs
+  - path: .yarn/plugins/npm-workaround.cjs
 tsEnableAutoTypes: false
 yarnPath: .yarn/releases/yarn-4.1.0.cjs