From 16e315521dbd90de3040abc71c28826fba44af8e Mon Sep 17 00:00:00 2001
From: Jonathan Cammisuli <jon@cammisuli.ca>
Date: Tue, 21 Dec 2021 21:01:48 -0500
Subject: [PATCH] fix: support workspaces lower than nx 13 (#1204)

---
 .../src/lib/nx-project-tree-provider.ts       | 14 ++++++-
 .../src/lib/get-nx-workspace-config.ts        | 38 ++++++++++++++++++-
 .../vscode/nx-workspace/src/lib/nx-version.ts | 32 ++++++++++++++++
 3 files changed, 80 insertions(+), 4 deletions(-)
 create mode 100644 libs/vscode/nx-workspace/src/lib/nx-version.ts

diff --git a/libs/vscode/nx-project-view/src/lib/nx-project-tree-provider.ts b/libs/vscode/nx-project-view/src/lib/nx-project-tree-provider.ts
index 9dd3f68212..fceae2dede 100644
--- a/libs/vscode/nx-project-view/src/lib/nx-project-tree-provider.ts
+++ b/libs/vscode/nx-project-view/src/lib/nx-project-tree-provider.ts
@@ -1,4 +1,8 @@
-import { AbstractTreeProvider, clearJsonCache } from '@nx-console/server';
+import {
+  AbstractTreeProvider,
+  clearJsonCache,
+  getOutputChannel,
+} from '@nx-console/server';
 import { WorkspaceConfigurationStore } from '@nx-console/vscode/configuration';
 import { revealNxProject } from '@nx-console/vscode/nx-workspace';
 import { CliTaskProvider } from '@nx-console/vscode/tasks';
@@ -71,8 +75,14 @@ export class NxProjectTreeProvider extends AbstractTreeProvider<NxProjectTreeIte
         nxProject.project
       ];
       if (projectDef) {
+        if (projectDef.root === undefined) {
+          getOutputChannel().appendLine(
+            `Project ${nxProject.project} has no root. This could be because of an error loading the workspace configuration.`
+          );
+        }
+
         item.resourceUri = Uri.file(
-          join(this.cliTaskProvider.getWorkspacePath(), projectDef.root)
+          join(this.cliTaskProvider.getWorkspacePath(), projectDef.root ?? '')
         );
       }
       item.contextValue = 'project';
diff --git a/libs/vscode/nx-workspace/src/lib/get-nx-workspace-config.ts b/libs/vscode/nx-workspace/src/lib/get-nx-workspace-config.ts
index 71d6b69737..0208184822 100644
--- a/libs/vscode/nx-workspace/src/lib/get-nx-workspace-config.ts
+++ b/libs/vscode/nx-workspace/src/lib/get-nx-workspace-config.ts
@@ -1,9 +1,11 @@
-import { getNxWorkspacePackageFileUtils } from './get-nx-workspace-package';
 import type {
-  WorkspaceJsonConfiguration,
   NxJsonConfiguration,
+  WorkspaceJsonConfiguration,
 } from '@nrwl/devkit';
+import { readAndCacheJsonFile } from '@nx-console/server';
 import { join } from 'path';
+import { getNxWorkspacePackageFileUtils } from './get-nx-workspace-package';
+import { nxVersion } from './nx-version';
 
 export async function getNxWorkspaceConfig(
   basedir: string,
@@ -12,6 +14,38 @@ export async function getNxWorkspaceConfig(
   workspaceConfiguration: WorkspaceJsonConfiguration & NxJsonConfiguration;
   configPath: string;
 }> {
+  const versionNumber = nxVersion();
+  if (versionNumber && versionNumber < 13) {
+    // Versions lower than 13 throw an error when trying to read configurations of workspaces that have nx.json properties in workspace.json
+    let workspaceJson: WorkspaceJsonConfiguration;
+    if (format === 'nx') {
+      workspaceJson = (await readAndCacheJsonFile('workspace.json', basedir))
+        .json;
+    } else {
+      workspaceJson = (await readAndCacheJsonFile('angular.json', basedir))
+        .json;
+    }
+
+    const nxJson: NxJsonConfiguration = (
+      await readAndCacheJsonFile('nx.json', basedir)
+    ).json;
+    return {
+      workspaceConfiguration: {
+        ...workspaceJson,
+        ...nxJson,
+        projects: {
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
+          ...((nxJson as any).projects ?? {}),
+          ...workspaceJson.projects,
+        },
+      },
+      configPath:
+        format === 'nx'
+          ? join(basedir, 'workspace.json')
+          : join(basedir, 'angular.json'),
+    };
+  }
+
   const nxWorkspacePackage = await getNxWorkspacePackageFileUtils();
 
   const configFile = nxWorkspacePackage.workspaceFileName();
diff --git a/libs/vscode/nx-workspace/src/lib/nx-version.ts b/libs/vscode/nx-workspace/src/lib/nx-version.ts
new file mode 100644
index 0000000000..6aebe36598
--- /dev/null
+++ b/libs/vscode/nx-workspace/src/lib/nx-version.ts
@@ -0,0 +1,32 @@
+import { WorkspaceConfigurationStore } from '@nx-console/vscode/configuration';
+
+declare function __non_webpack_require__(importPath: string): any;
+
+let nxWorkspacePackageJson: { version: string };
+let loadedNxWorkspacePackage = false;
+export function nxVersion(): number | null {
+  if (!loadedNxWorkspacePackage) {
+    const workspacePath = WorkspaceConfigurationStore.instance.get(
+      'nxWorkspacePath',
+      ''
+    );
+    try {
+      nxWorkspacePackageJson = __non_webpack_require__(
+        `${workspacePath}/node_modules/@nrwl/workspace/package.json`
+      );
+      loadedNxWorkspacePackage = true;
+    } catch (e) {
+      return null;
+    }
+  }
+
+  if (!nxWorkspacePackageJson) {
+    return 0;
+  }
+  const nxPackageVersion = nxWorkspacePackageJson.version;
+  const majorVersion = nxPackageVersion.split('.')[0];
+  if (!majorVersion) {
+    return 0;
+  }
+  return +majorVersion;
+}