feat(core): change the signature of createNodes to return a project root map instead of project name map (#20102)

docs/generated/devkit/CreateNodesFunction.md

@@ -1,6 +1,6 @@
 # Type alias: CreateNodesFunction<T\>
 
-Ƭ **CreateNodesFunction**<`T`\>: (`projectConfigurationFile`: `string`, `options`: `T` \| `undefined`, `context`: [`CreateNodesContext`](../../devkit/documents/CreateNodesContext)) => { `externalNodes?`: `Record`<`string`, [`ProjectGraphExternalNode`](../../devkit/documents/ProjectGraphExternalNode)\> ; `projects?`: `Record`<`string`, [`ProjectConfiguration`](../../devkit/documents/ProjectConfiguration)\> }
+Ƭ **CreateNodesFunction**<`T`\>: (`projectConfigurationFile`: `string`, `options`: `T` \| `undefined`, `context`: [`CreateNodesContext`](../../devkit/documents/CreateNodesContext)) => { `externalNodes?`: `Record`<`string`, [`ProjectGraphExternalNode`](../../devkit/documents/ProjectGraphExternalNode)\> ; `projects?`: `Record`<`string`, `Optional`<[`ProjectConfiguration`](../../devkit/documents/ProjectConfiguration), `"root"`\>\> }
 
 #### Type parameters
 
@@ -27,7 +27,7 @@ Used for creating nodes for the [ProjectGraph](../../devkit/documents/ProjectGra
 
 `Object`
 
-| Name             | Type                                                                                               |
+| Name             | Type                                                                                                              | Description                                                                                                |
-| :--------------- | :------------------------------------------------------------------------------------------------- |
+| :--------------- | :---------------------------------------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------------------------------- |
-| `externalNodes?` | `Record`<`string`, [`ProjectGraphExternalNode`](../../devkit/documents/ProjectGraphExternalNode)\> |
+| `externalNodes?` | `Record`<`string`, [`ProjectGraphExternalNode`](../../devkit/documents/ProjectGraphExternalNode)\>                | A map of external node name -> external node. External nodes do not have a root, so the key is their name. |
-| `projects?`      | `Record`<`string`, [`ProjectConfiguration`](../../devkit/documents/ProjectConfiguration)\>         |
+| `projects?`      | `Record`<`string`, `Optional`<[`ProjectConfiguration`](../../devkit/documents/ProjectConfiguration), `"root"`\>\> | A map of project root -> project configuration                                                             |

docs/shared/recipes/plugins/project-graph-plugins.md

@@ -60,15 +60,11 @@ export const createNodes: CreateNodes = [
   '**/project.json',
   (projectConfigurationFile: string, opts, context: CreateNodesContext) => {
     const projectConfiguration = readJson(projectConfigurationFile);
-    const projectRoot = dirname(projectConfigurationFile);
+    const root = dirname(projectConfigurationFile);
-    const projectName = projectConfiguration.name;
 
     return {
       projects: {
-        [projectName]: {
+        [root]: projectConfiguration,
-          ...projectConfiguration,
-          root: projectRoot,
-        },
       },
     };
   },
@@ -244,12 +240,10 @@ export const createNodes: CreateNodes<MyPluginOptions> = [
   '**/project.json',
   (fileName, opts, ctx) => {
     const root = dirname(fileName);
-    const name = basename(fileName);
 
     return {
       projects: {
-        [name]: {
+        [root]: {
-          root,
           tags: opts.tagName ? [opts.tagName] : [],
         },
       },

e2e/plugin/src/nx-plugin.fixtures.ts

@@ -37,8 +37,9 @@ export const createNodes: CreateNodes<PluginOptions> = [
 
         return {
             projects: {
-                [name]: {
+                [root]: {
                     root,
+                    name,
                     targets: {
                         build: {
                             executor: "nx:run-commands",

packages/nx/plugins/package-json-workspaces.spec.ts

@@ -40,7 +40,7 @@ describe('nx package.json workspaces plugin', () => {
       .toMatchInlineSnapshot(`
       {
         "projects": {
-          "root": {
+          ".": {
             "name": "root",
             "projectType": "library",
             "root": ".",
@@ -68,7 +68,7 @@ describe('nx package.json workspaces plugin', () => {
       .toMatchInlineSnapshot(`
       {
         "projects": {
-          "lib-a": {
+          "packages/lib-a": {
             "name": "lib-a",
             "projectType": "library",
             "root": "packages/lib-a",
@@ -96,7 +96,7 @@ describe('nx package.json workspaces plugin', () => {
       .toMatchInlineSnapshot(`
       {
         "projects": {
-          "lib-b": {
+          "packages/lib-b": {
             "implicitDependencies": [
               "lib-a",
             ],

packages/nx/plugins/package-json-workspaces.ts

@@ -30,13 +30,14 @@ export function getNxPackageJsonWorkspacesPlugin(root: string): NxPluginV2 {
 
 export function createNodeFromPackageJson(pkgJsonPath: string, root: string) {
   const json: PackageJson = readJsonFile(join(root, pkgJsonPath));
-  return {
+  const project = buildProjectConfigurationFromPackageJson(
-    projects: {
-      [json.name]: buildProjectConfigurationFromPackageJson(
     json,
     pkgJsonPath,
     readNxJson(root)
-      ),
+  );
+  return {
+    projects: {
+      [project.root]: project,
     },
   };
 }

packages/nx/src/adapter/angular-json.ts

@@ -56,30 +56,42 @@ function readAngularJson(angularCliWorkspaceRoot: string) {
 }
 
 export function toNewFormat(w: any): ProjectsConfigurations {
-  Object.values(w.projects || {}).forEach((projectConfig: any) => {
+  if (!w.projects) {
+    return w;
+  }
+  for (const name in w.projects ?? {}) {
+    const projectConfig = w.projects[name];
     if (projectConfig.architect) {
       renamePropertyWithStableKeys(projectConfig, 'architect', 'targets');
     }
     if (projectConfig.schematics) {
       renamePropertyWithStableKeys(projectConfig, 'schematics', 'generators');
     }
+    if (!projectConfig.name) {
+      projectConfig.name = name;
+    }
+
     Object.values(projectConfig.targets || {}).forEach((target: any) => {
       if (target.builder !== undefined) {
         renamePropertyWithStableKeys(target, 'builder', 'executor');
       }
     });
-  });
+  }
+
   if (w.schematics) {
     renamePropertyWithStableKeys(w, 'schematics', 'generators');
   }
   if (w.version !== 2) {
     w.version = 2;
   }
+
   return w;
 }
 
 export function toOldFormat(w: any) {
-  Object.values(w.projects || {}).forEach((projectConfig: any) => {
+  if (w.projects) {
+    for (const name in w.projects) {
+      const projectConfig = w.projects[name];
       if (typeof projectConfig === 'string') {
         throw new Error(
           "'project.json' files are incompatible with version 1 workspace schemas."
@@ -97,7 +109,8 @@ export function toOldFormat(w: any) {
           renamePropertyWithStableKeys(target, 'executor', 'builder');
         }
       });
-  });
+    }
+  }
 
   if (w.generators) {
     renamePropertyWithStableKeys(w, 'generators', 'schematics');

packages/nx/src/plugins/project-json/build-nodes/project-json.spec.ts

@@ -39,7 +39,7 @@ describe('nx project.json plugin', () => {
       .toMatchInlineSnapshot(`
       {
         "projects": {
-          "root": {
+          ".": {
             "name": "root",
             "root": ".",
             "targets": {
@@ -53,7 +53,7 @@ describe('nx project.json plugin', () => {
       .toMatchInlineSnapshot(`
       {
         "projects": {
-          "lib-a": {
+          "packages/lib-a": {
             "name": "lib-a",
             "root": "packages/lib-a",
             "targets": {

packages/nx/src/plugins/project-json/build-nodes/project-json.ts

@@ -9,13 +9,14 @@ export const CreateProjectJsonProjectsPlugin: NxPluginV2 = {
   name: 'nx-core-build-project-json-nodes',
   createNodes: [
     '{project.json,**/project.json}',
-    (file, _, context) => {
+    (file, _, { workspaceRoot }) => {
-      const root = context.workspaceRoot;
+      const json = readJsonFile<ProjectConfiguration>(
-      const json = readJsonFile<ProjectConfiguration>(join(root, file));
+        join(workspaceRoot, file)
+      );
       const project = buildProjectFromProjectJson(json, file);
       return {
         projects: {
-          [project.name]: project,
+          [project.root]: project,
         },
       };
     },

packages/nx/src/project-graph/utils/project-configuration-utils.ts

@@ -114,11 +114,19 @@ export function buildProjectsConfigurationsFromProjectPathsAndPlugins(
             workspaceRoot: root,
           });
         for (const node in projectNodes) {
-          projectNodes[node].name ??= node;
+          mergeProjectConfigurationIntoRootMap(projectRootMap, {
-          mergeProjectConfigurationIntoRootMap(
+            // If root is specified in config, that will overwrite this.
-            projectRootMap,
+            // Specifying it here though allows plugins to return something like
-            projectNodes[node]
+            // {
-          );
+            //   projects: {
+            //     [root]: { targets: buildTargetsFromFile(f) }
+            //   }
+            // }
+            // Otherwise, the root would have to be specified in the config as well
+            // which would be a bit redundant.
+            root: node,
+            ...projectNodes[node],
+          });
         }
         Object.assign(externalNodes, pluginExternalNodes);
       }

packages/nx/src/utils/nx-plugin.ts

@@ -40,7 +40,6 @@ import {
 } from '../adapter/angular-json';
 import { getNxPackageJsonWorkspacesPlugin } from '../../plugins/package-json-workspaces';
 import { CreateProjectJsonProjectsPlugin } from '../plugins/project-json/build-nodes/project-json';
-import { FileMapCache } from '../project-graph/nx-deps-cache';
 import { CreatePackageJsonProjectsNextToProjectJson } from '../plugins/project-json/build-nodes/package-json-next-to-project-json';
 
 /**
@@ -60,7 +59,14 @@ export type CreateNodesFunction<T = unknown> = (
   options: T | undefined,
   context: CreateNodesContext
 ) => {
-  projects?: Record<string, ProjectConfiguration>;
+  /**
+   * A map of project root -> project configuration
+   */
+  projects?: Record<string, Optional<ProjectConfiguration, 'root'>>;
+
+  /**
+   * A map of external node name -> external node. External nodes do not have a root, so the key is their name.
+   */
   externalNodes?: Record<string, ProjectGraphExternalNode>;
 };
 
@@ -311,12 +317,12 @@ function ensurePluginIsV2(plugin: NxPlugin): NxPluginV2 {
       createNodes: [
         `*/**/${combineGlobPatterns(plugin.projectFilePatterns)}`,
         (configFilePath) => {
-          const name = toProjectName(configFilePath);
+          const root = dirname(configFilePath);
           return {
             projects: {
-              [name]: {
+              [root]: {
-                name,
+                name: toProjectName(configFilePath),
-                root: dirname(configFilePath),
+                root,
                 targets: plugin.registerProjectTargets?.(configFilePath),
               },
             },
@@ -535,3 +541,5 @@ function getDefaultPluginsSync(root: string): LoadedNxPlugin[] {
     plugin: p,
   }));
 }
+
+type Optional<T, K extends keyof T> = Omit<T, K> & Partial<Pick<T, K>>;

tools/workspace-plugin/src/generators/create-nodes-plugin/__snapshots__/generator.spec.ts.snap

@@ -88,11 +88,10 @@ export const createNodes: CreateNodes<EslintPluginOptions> = [
     }
 
     options = normalizeOptions(options);
-    const projectName = basename(projectRoot);
 
     return {
       projects: {
-        [projectName]: {
+        [projectRoot]: {
           root: projectRoot,
           projectType: 'library',
           targets: buildEslintTargets(

tools/workspace-plugin/src/generators/create-nodes-plugin/files/src/plugins/plugin.ts.template

@@ -31,11 +31,10 @@ export const createNodes: CreateNodes<<%= className %>PluginOptions> = [
     }
 
     options = normalizeOptions(options);
-    const projectName = basename(projectRoot);
 
     return {
       projects: {
-        [projectName]: {
+        [projectRoot]: {
           root: projectRoot,
           projectType: 'library',
           targets: build<%= className %>Targets(