Add "rush" workspace

packages/fs-detectors/src/workspaces/get-workspace-package-paths.ts

@@ -33,6 +33,12 @@ export async function getWorkspacePackagePaths({
     case 'pnpm':
       results = await getPnpmWorkspacePackagePaths({ fs: workspaceFs });
       break;
+    case 'rush':
+      // /common/temp is the location that Rush defaults adding the pnpm workspace file
+      results = await getPnpmWorkspacePackagePaths({
+        fs: fs.chdir('/common/temp'),
+      });
+      break;
     default:
       throw new Error(`Unknown workspace implementation: ${type}`);
   }

packages/fs-detectors/src/workspaces/get-workspaces.ts

@@ -12,7 +12,7 @@ export interface GetWorkspaceOptions {
   cwd?: string;
 }
 
-export type WorkspaceType = 'yarn' | 'pnpm' | 'npm';
+export type WorkspaceType = 'yarn' | 'pnpm' | 'npm' | 'rush';
 
 export type Workspace = {
   type: WorkspaceType;

packages/fs-detectors/src/workspaces/workspace-managers.ts

@@ -59,6 +59,18 @@ export const workspaceManagers: Array<
       ],
     },
   },
+  {
+    name: 'rush',
+    slug: 'rush',
+    detectors: {
+      every: [
+        {
+          path: 'rush.json',
+          matchContent: '"useWorkspaces":\\strue',
+        },
+      ],
+    },
+  },
   {
     name: 'default',
     slug: 'yarn',