fix(gradle): build nx graph for gradle projects regardless of build gradle file location (#29783) (#29802)

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## Current Behavior
<!-- This is the behavior we have today -->
With a project structure where build.gradle.kts is defined in a separate
buildSrc directory, and not in the root project directory where
`gradlew` is defined, the gradle project is not included in nx project
graph. This is a valid gradle project configuration, with project-report
tasks configured. Running ./gradlew projectReport works and builds the
projectReport.

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

With the fix, as long as expected tasks - projectReport or
projectReportAll - is defined, nx should be able to build the nx graph
regardless of the location of the `build.gradle` or `build.gradle.kts`
file.

## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->

Fixes #29783

Author: romanbalayan

e2e/gradle/src/gradle-import.test.ts

@@ -184,6 +184,12 @@ describe('Nx Import Gradle', () => {
       `${directory}/gradlew`,
       `${directory}/gradlew.bat`
     );
+    const nxJson = readJson('nx.json');
+    const gradlePlugin = nxJson.plugins.find(
+      (plugin) => plugin.plugin === '@nx/gradle'
+    );
+    gradlePlugin.exclude = [];
+    updateJson('nx.json', () => nxJson);
     expect(() => {
       runCLI(`show projects`);
       runCLI('build groovy-app');

packages/gradle/src/utils/get-project-report-lines.ts

@@ -22,17 +22,7 @@ export async function getProjectReportLines(
 ): Promise<string[]> {
   let projectReportBuffer: Buffer;
 
-  // if there is no build.gradle or build.gradle.kts file, we cannot run the projectReport nor projectReportAll task
-  if (
-    !existsSync(join(dirname(gradlewFile), 'build.gradle')) &&
-    !existsSync(join(dirname(gradlewFile), 'build.gradle.kts'))
-  ) {
-    logger.warn(
-      `Could not find build file near ${gradlewFile}. Please run 'nx generate @nx/gradle:init' to generate the necessary tasks.`
-    );
-    return [];
-  }
-
+  // Attempt to run projectReport or projectReportAll task, regardless of build.gradle or build.gradle.kts location
   try {
     projectReportBuffer = await execGradleAsync(gradlewFile, [
       'projectReportAll',

packages/nx/src/command-line/init/implementation/check-compatible-with-plugins.ts

@@ -1,5 +1,5 @@
 import { existsSync } from 'node:fs';
-import { join } from 'node:path';
+import { join, relative } from 'node:path';
 import { bold } from 'chalk';
 
 import { NxJsonConfiguration } from '../../../config/nx-json';
@@ -83,7 +83,13 @@ function findPluginAndFilesWithError(
       },
     ];
   }
-  excludeFiles = excludeFiles.filter(Boolean);
+  excludeFiles = excludeFiles.filter(Boolean).map((excludeFile) => {
+    const file = excludeFile.file;
+    excludeFile.file = file.startsWith(workspaceRoot)
+      ? relative(workspaceRoot, file)
+      : file;
+    return excludeFile;
+  });
   return {
     pluginIndex,
     excludeFiles,

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

@@ -409,7 +409,7 @@ export async function createProjectConfigurationsWithPlugins(
             e
           : // This represents a single plugin erroring out with a hard error.
             new AggregateCreateNodesError([[null, e]], []);
-        if (pluginIndex) {
+        if (pluginIndex !== undefined) {
           error.pluginIndex = pluginIndex;
         }
         formatAggregateCreateNodesError(error, pluginName);