feat(node): added rootDir flag when generating node/lib (#3659)

docs/angular/api-node/schematics/library.md

@@ -80,6 +80,14 @@ Type: `boolean`
 
 Create a publishable library.
 
+### rootDir
+
+Alias(es): srcRootForCompilationRoot
+
+Type: `string`
+
+Sets the rootDir for TypeScript compilation. When not defined, it uses the project's root property, or srcRootForCompilationRoot if it is defined.
+
 ### skipFormat
 
 Default: `false`

docs/node/api-node/schematics/library.md

@@ -80,6 +80,14 @@ Type: `boolean`
 
 Create a publishable library.
 
+### rootDir
+
+Alias(es): srcRootForCompilationRoot
+
+Type: `string`
+
+Sets the rootDir for TypeScript compilation. When not defined, it uses the project's root property, or srcRootForCompilationRoot if it is defined.
+
 ### skipFormat
 
 Default: `false`

docs/react/api-node/schematics/library.md

@@ -80,6 +80,14 @@ Type: `boolean`
 
 Create a publishable library.
 
+### rootDir
+
+Alias(es): srcRootForCompilationRoot
+
+Type: `string`
+
+Sets the rootDir for TypeScript compilation. When not defined, it uses the project's root property, or srcRootForCompilationRoot if it is defined.
+
 ### skipFormat
 
 Default: `false`

packages/node/src/builders/package/package.impl.ts

@@ -19,6 +19,7 @@ export function runNodePackageBuilder(
 ) {
   const projGraph = createProjectGraph();
   const libRoot = projGraph.nodes[context.target.project].data.root;
+
   const normalizedOptions = normalizeOptions(options, context, libRoot);
   const { target, dependencies } = calculateProjectDependencies(
     projGraph,

packages/node/src/builders/package/utils/compile-typescript-files.ts

@@ -70,6 +70,7 @@ export default function compileTypeScriptFiles(
 
   const tsconfig = readTsConfig(tsConfigPath);
   tsconfig.options.outDir = options.normalizedOutputPath;
+
   if (options.srcRootForCompilationRoot) {
     tsconfig.options.rootDir = options.srcRootForCompilationRoot;
   } else {

packages/node/src/schematics/library/library.spec.ts

@@ -37,6 +37,19 @@ describe('lib', () => {
       });
     });
 
+    it('adds srcRootForCompilationRoot in workspace.json', async () => {
+      const tree = await runSchematic(
+        'lib',
+        { name: 'myLib', rootDir: './src', buildable: true },
+        appTree
+      );
+      const workspaceJson = readJsonInTree(tree, '/workspace.json');
+      expect(
+        workspaceJson.projects['my-lib'].architect.build.options
+          .srcRootForCompilationRoot
+      ).toEqual('./src');
+    });
+
     it('should update nx.json', async () => {
       const tree = await runSchematic(
         'lib',

packages/node/src/schematics/library/library.ts

@@ -126,6 +126,10 @@ function addProject(options: NormalizedSchema): Rule {
           assets: [`${options.projectRoot}/*.md`],
         },
       };
+
+      if (options.rootDir) {
+        architect.build.options.srcRootForCompilationRoot = options.rootDir;
+      }
     }
     return json;
   });

packages/node/src/schematics/library/schema.d.ts

@@ -12,4 +12,5 @@ export interface Schema {
   publishable?: boolean;
   importPath?: string;
   testEnvironment: 'jsdom' | 'node';
+  rootDir?: string;
 }

packages/node/src/schematics/library/schema.json

@@ -64,6 +64,11 @@
       "type": "string",
       "description": "The library name used to import it, like @myorg/my-awesome-lib. Must be a valid npm name."
     },
+    "rootDir": {
+      "type": "string",
+      "alias": "srcRootForCompilationRoot",
+      "description": "Sets the rootDir for TypeScript compilation. When not defined, it uses the project's root property, or srcRootForCompilationRoot if it is defined."
+    },
     "testEnvironment": {
       "type": "string",
       "enum": ["jsdom", "node"],