Add support for Rush monorepos (#65)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "isolate-package",
-  "version": "1.12.2",
+  "version": "1.13.0-1",
   "description": "Isolate a monorepo package with its shared dependencies to form a self-contained directory, compatible with Firebase deploy",
   "author": "Thijs Koerselman",
   "license": "MIT",

src/isolate.ts

@@ -1,6 +1,7 @@
 import fs from "fs-extra";
 import assert from "node:assert";
 import path from "node:path";
+import { unique } from "remeda";
 import type { IsolateConfig } from "./lib/config";
 import { resolveConfig, setUserConfig } from "./lib/config";
 import { processLockfile } from "./lib/lockfile";
@@ -22,7 +23,13 @@ import { detectPackageManager } from "./lib/package-manager";
 import { getVersion } from "./lib/package-manager/helpers/infer-from-files";
 import { createPackagesRegistry, listInternalPackages } from "./lib/registry";
 import type { PackageManifest } from "./lib/types";
-import { getDirname, getRootRelativePath, readTypedJson } from "./lib/utils";
+import {
+  getDirname,
+  getRootRelativePath,
+  isRushWorkspace,
+  readTypedJson,
+  writeTypedYamlSync,
+} from "./lib/utils";
 
 const __dirname = getDirname(import.meta.url);
 
@@ -58,10 +65,6 @@ export async function isolate(
     ? path.join(process.cwd(), config.targetPackagePath)
     : process.cwd();
 
-  /**
-   * We want a trailing slash here. Functionally it doesn't matter, but it makes
-   * the relative paths more correct in the debug output.
-   */
   const workspaceRootDir = config.targetPackagePath
     ? process.cwd()
     : path.join(targetPackageDir, config.workspaceRoot);
@@ -193,11 +196,30 @@ export async function isolate(
      * PNPM doesn't install dependencies of packages that are linked via link:
      * or file: specifiers. It requires the directory to be configured as a
      * workspace, so we copy the workspace config file to the isolate output.
+     *
+     * Rush doesn't have a pnpm-workspace.yaml file, so we generate one.
      */
-    fs.copyFileSync(
-      path.join(workspaceRootDir, "pnpm-workspace.yaml"),
-      path.join(isolateDir, "pnpm-workspace.yaml")
-    );
+    if (isRushWorkspace(workspaceRootDir)) {
+      const packagesFolderNames = unique(
+        internalPackageNames.map(
+          (name) => path.parse(packagesRegistry[name].rootRelativeDir).dir
+        )
+      );
+
+      log.debug("Generating pnpm-workspace.yaml for Rush workspace");
+      log.debug("Packages folder names:", packagesFolderNames);
+
+      const packages = packagesFolderNames.map((x) => x + "/*");
+
+      await writeTypedYamlSync(path.join(isolateDir, "pnpm-workspace.yaml"), {
+        packages,
+      });
+    } else {
+      fs.copyFileSync(
+        path.join(workspaceRootDir, "pnpm-workspace.yaml"),
+        path.join(isolateDir, "pnpm-workspace.yaml")
+      );
+    }
   }
   /**
    * If there is an .npmrc file in the workspace root, copy it to the isolate

src/lib/lockfile/helpers/generate-pnpm-lockfile.ts

@@ -10,7 +10,7 @@ import { pick } from "remeda";
 import { useConfig } from "~/lib/config";
 import { useLogger } from "~/lib/logger";
 import type { PackageManifest, PackagesRegistry } from "~/lib/types";
-import { getErrorMessage } from "~/lib/utils";
+import { getErrorMessage, isRushWorkspace } from "~/lib/utils";
 import { pnpmMapImporter } from "./pnpm-map-importer";
 
 export async function generatePnpmLockfile({
@@ -34,9 +34,16 @@ export async function generatePnpmLockfile({
   log.info("Generating PNPM lockfile...");
 
   try {
-    const lockfile = await readWantedLockfile(workspaceRootDir, {
-      ignoreIncompatible: false,
-    });
+    const isRush = isRushWorkspace(workspaceRootDir);
+
+    const lockfile = await readWantedLockfile(
+      isRush
+        ? path.join(workspaceRootDir, "common/config/rush")
+        : workspaceRootDir,
+      {
+        ignoreIncompatible: false,
+      }
+    );
 
     assert(lockfile, `No input lockfile found at ${workspaceRootDir}`);
 
@@ -49,6 +56,8 @@ export async function generatePnpmLockfile({
       internalDepPackageNames.map((name) => {
         const pkg = packagesRegistry[name];
         assert(pkg, `Package ${name} not found in packages registry`);
+
+        console.log("pkg.rootRelativeDir", pkg.rootRelativeDir);
         return [name, pkg.rootRelativeDir];
       })
     );
@@ -64,34 +73,48 @@ export async function generatePnpmLockfile({
 
     log.debug("Relevant importer ids:", relevantImporterIds);
 
+    /**
+     * In a Rush workspace the original lockfile is not in the root, so the
+     * importerIds have to be prefixed with `../../`, but that's not how they
+     * should be stored in the isolated lockfile, so we use the prefixed ids
+     * only for parsing.
+     */
+    const relevantImporterIdsWithPrefix = relevantImporterIds.map((x) =>
+      isRush ? `../../${x}` : x
+    );
+
     lockfile.importers = Object.fromEntries(
-      Object.entries(pick(lockfile.importers, relevantImporterIds)).map(
-        ([importerId, importer]) => {
-          if (importerId === targetImporterId) {
-            log.debug("Setting target package importer on root");
-
-            return [
-              ".",
-              pnpmMapImporter(importer, {
-                includeDevDependencies,
-                includePatchedDependencies,
-                directoryByPackageName,
-              }),
-            ];
-          }
-
-          log.debug("Setting internal package importer:", importerId);
+      Object.entries(
+        pick(lockfile.importers, relevantImporterIdsWithPrefix)
+      ).map(([prefixedImporterId, importer]) => {
+        const importerId = isRush
+          ? prefixedImporterId.replace("../../", "")
+          : prefixedImporterId;
+
+        if (importerId === targetImporterId) {
+          log.debug("Setting target package importer on root");
 
           return [
-            importerId,
+            ".",
             pnpmMapImporter(importer, {
               includeDevDependencies,
               includePatchedDependencies,
               directoryByPackageName,
             }),
           ];
         }
-      )
+
+        log.debug("Setting internal package importer:", importerId);
+
+        return [
+          importerId,
+          pnpmMapImporter(importer, {
+            includeDevDependencies,
+            includePatchedDependencies,
+            directoryByPackageName,
+          }),
+        ];
+      })
     );
 
     log.debug("Pruning the lockfile");

src/lib/lockfile/helpers/generate-yarn-lockfile.ts

@@ -2,7 +2,7 @@ import fs from "fs-extra";
 import { execSync } from "node:child_process";
 import path from "node:path";
 import { useLogger } from "~/lib/logger";
-import { getErrorMessage } from "~/lib/utils";
+import { getErrorMessage, isRushWorkspace } from "~/lib/utils";
 
 /**
  * Generate an isolated / pruned lockfile, based on the existing lockfile from
@@ -20,7 +20,10 @@ export async function generateYarnLockfile({
 
   log.info("Generating Yarn lockfile...");
 
-  const origLockfilePath = path.join(workspaceRootDir, "yarn.lock");
+  const origLockfilePath = isRushWorkspace(workspaceRootDir)
+    ? path.join(workspaceRootDir, "common/config/rush", "yarn.lock")
+    : path.join(workspaceRootDir, "yarn.lock");
+
   const newLockfilePath = path.join(isolateDir, "yarn.lock");
 
   if (!fs.existsSync(origLockfilePath)) {

src/lib/manifest/helpers/adopt-pnpm-fields-from-root.ts

@@ -1,7 +1,7 @@
 import type { ProjectManifest } from "@pnpm/types";
 import path from "path";
 import type { PackageManifest } from "~/lib/types";
-import { readTypedJson } from "~/lib/utils";
+import { isRushWorkspace, readTypedJson } from "~/lib/utils";
 
 /**
  * Adopts the `pnpm` fields from the root package manifest. Currently it only
@@ -12,6 +12,10 @@ export async function adoptPnpmFieldsFromRoot(
   targetPackageManifest: PackageManifest,
   workspaceRootDir: string
 ) {
+  if (isRushWorkspace(workspaceRootDir)) {
+    return targetPackageManifest;
+  }
+
   const rootPackageManifest = await readTypedJson<ProjectManifest>(
     path.join(workspaceRootDir, "package.json")
   );

src/lib/package-manager/index.ts

@@ -1,9 +1,11 @@
+import path from "node:path";
+import { isRushWorkspace } from "../utils/is-rush-workspace";
 import { inferFromFiles, inferFromManifest } from "./helpers";
 import type { PackageManager } from "./names";
 
 export * from "./names";
 
-export let packageManager: PackageManager | undefined;
+let packageManager: PackageManager | undefined;
 
 export function usePackageManager() {
   if (!packageManager) {
@@ -20,13 +22,19 @@ export function usePackageManager() {
  * we get the name and version from there. Otherwise we'll search for the
  * different lockfiles and ask the OS to report the installed version.
  */
-export function detectPackageManager(workspaceRoot: string): PackageManager {
-  /**
-   * Disable infer from manifest for now. I doubt it is useful after all but
-   * I'll keep the code as a reminder.
-   */
-  packageManager =
-    inferFromManifest(workspaceRoot) ?? inferFromFiles(workspaceRoot);
+export function detectPackageManager(workspaceRootDir: string): PackageManager {
+  if (isRushWorkspace(workspaceRootDir)) {
+    packageManager = inferFromFiles(
+      path.join(workspaceRootDir, "common/config/rush")
+    );
+  } else {
+    /**
+     * Disable infer from manifest for now. I doubt it is useful after all but
+     * I'll keep the code as a reminder.
+     */
+    packageManager =
+      inferFromManifest(workspaceRootDir) ?? inferFromFiles(workspaceRootDir);
+  }
 
   return packageManager;
 }

src/lib/registry/create-packages-registry.ts

@@ -3,7 +3,7 @@ import { globSync } from "glob";
 import path from "node:path";
 import { useLogger } from "../logger";
 import type { PackageManifest, PackagesRegistry } from "../types";
-import { readTypedJson } from "../utils";
+import { isRushWorkspace, readTypedJson, readTypedJsonSync } from "../utils";
 import { findPackagesGlobs } from "./helpers";
 
 /**
@@ -23,17 +23,14 @@ export async function createPackagesRegistry(
     );
   }
 
-  const packagesGlobs =
-    workspacePackagesOverride ?? findPackagesGlobs(workspaceRootDir);
+  const allPackages = listWorkspacePackages(
+    workspacePackagesOverride,
+    workspaceRootDir
+  );
 
   const cwd = process.cwd();
   process.chdir(workspaceRootDir);
 
-  const allPackages = packagesGlobs
-    .flatMap((glob) => globSync(glob))
-    /** Make sure to filter any loose files that might hang around. */
-    .filter((dir) => fs.lstatSync(dir).isDirectory());
-
   const registry: PackagesRegistry = (
     await Promise.all(
       allPackages.map(async (rootRelativeDir) => {
@@ -70,3 +67,30 @@ export async function createPackagesRegistry(
 
   return registry;
 }
+
+type RushConfig = {
+  projects: { packageName: string; projectFolder: string }[];
+};
+
+function listWorkspacePackages(
+  workspacePackagesOverride: string[] | undefined,
+  workspaceRootDir: string
+) {
+  if (isRushWorkspace(workspaceRootDir)) {
+    const rushConfig = readTypedJsonSync<RushConfig>(
+      path.join(workspaceRootDir, "rush.json")
+    );
+
+    return rushConfig.projects.map(({ projectFolder }) => projectFolder);
+  } else {
+    const packagesGlobs =
+      workspacePackagesOverride ?? findPackagesGlobs(workspaceRootDir);
+
+    const allPackages = packagesGlobs
+      .flatMap((glob) => globSync(glob))
+      /** Make sure to filter any loose files that might hang around. */
+      .filter((dir) => fs.lstatSync(dir).isDirectory());
+
+    return allPackages;
+  }
+}

src/lib/utils/index.ts

@@ -4,6 +4,7 @@ export * from "./get-error-message";
 export * from "./get-relative-path";
 export * from "./inspect-value";
 export * from "./is-present";
+export * from "./is-rush-workspace";
 export * from "./json";
 export * from "./pack";
 export * from "./unpack";

src/lib/utils/is-rush-workspace.ts

@@ -0,0 +1,10 @@
+import fs from "node:fs";
+import path from "node:path";
+
+/**
+ * Detect if this is a Rush monorepo. They use a very different structure so
+ * there are multiple places where we need to make exceptions based on this.
+ */
+export function isRushWorkspace(workspaceRootDir: string) {
+  return fs.existsSync(path.join(workspaceRootDir, "rush.json"));
+}