feat(core): add gradle plugin (#21055)

.circleci/config.yml

@@ -69,6 +69,50 @@ commands:
             - ~/.pnpm-store
             - ~/.cache/Cypress
             - node_modules
+  install-sdkman:
+    description: Install SDKMAN
+    steps:
+      - restore_cache:
+          name: Restore SDKMAN executable and binaries from cache
+          keys:
+            - sdkman-cli-{{ arch }}-v2
+      - run:
+          name: Installing SDKMAN
+          command: |
+            if [ ! -d ~/.sdkman ]
+            then
+              curl -s "https://get.sdkman.io?rcupdate=false" | bash
+              sed -i -e 's/sdkman_auto_answer=false/sdkman_auto_answer=true/g' ~/.sdkman/etc/config
+            fi
+            echo -e '\nsource "/home/circleci/.sdkman/bin/sdkman-init.sh"' >> $BASH_ENV
+            source $BASH_ENV
+            sdk version
+      - save_cache:
+          name: Save SDKMAN executable and binaries to cache
+          key: sdkman-cli-{{ arch }}-v2
+          paths:
+            - ~/.sdkman
+  install-gradle:
+    description: Install gradle
+    parameters:
+      gradle-version:
+        type: string
+        default: ''
+    steps:
+      - restore_cache:
+          name: Restore Gradle binary from cache
+          keys:
+            - gradle-cli-{{ arch }}-v1
+      - run:
+          name: Installing Gradle
+          command: |
+            sdk install gradle << parameters.gradle-version >>
+            gradle --version
+      - save_cache:
+          name: Save Gradle binary to cache
+          key: gradle-cli-{{ arch }}-v1
+          paths:
+            - ~/.sdkman/candidates/gradle/
 # -------------------------
 #          JOBS
 # -------------------------
@@ -96,6 +140,9 @@ jobs:
             sudo apt-get install -y ca-certificates lsof
       - browser-tools/install-chrome
       - browser-tools/install-chromedriver
+      - install-sdkman
+      - install-gradle:
+          gradle-version: '8.5'
       - run-pnpm-install:
           os: linux
       - run:

.github/workflows/e2e-matrix.yml

@@ -165,6 +165,8 @@ jobs:
             codeowners: 'S04SJ6HHP0X'
           - project: e2e-expo
             codeowners: 'S04TNCNJG5N'
+          - project: e2e-gradle
+            codeowners: 'S04TNCNJG5N'
           - project: e2e-jest
             codeowners: 'S04T16BTJJY'
           - project: e2e-js
@@ -242,6 +244,8 @@ jobs:
             project: e2e-esbuild
           - node_version: 18
             project: e2e-expo
+          - node_version: 18
+            project: e2e-gradle
           - node_version: 18
             project: e2e-jest
           - node_version: 18

.nx/workflows/agents.yaml

@@ -20,6 +20,8 @@ launch-templates:
             node_modules
             ~/.cache/Cypress
             ~/.pnpm-store
+            ~/.sdkman
+            ~/.sdkman/candidates/gradle
           BASE_BRANCH: 'master'
       - name: Install e2e deps
         script: |
@@ -49,3 +51,21 @@ launch-templates:
 
       - name: Load Cargo Env
         script: echo "PATH=$HOME/.cargo/bin:$PATH" >> $NX_CLOUD_ENV
+
+      - name: Install zip and unzip
+        script: sudo apt-get -yqq install zip unzip
+
+      - name: Install SDKMAN and gradle
+        script: |
+          if [ ! -d $HOME/.sdkman ]
+          then
+            curl -s "https://get.sdkman.io" | bash
+            source "$HOME/.sdkman/bin/sdkman-init.sh"
+          fi
+          sdk version
+          if [ ! -d $HOME/.sdkman/candidates/gradle/8.5 ]
+          then
+            sdk install gradle 8.5
+          fi
+          gradle --version
+          echo "PATH=$HOME/.sdkman/candidates/gradle/8.5/bin:$PATH" >> $NX_CLOUD_ENV

CODEOWNERS

@@ -144,6 +144,10 @@ rust-toolchain @nrwl/nx-native-reviewers
 /packages/devkit/public-api.ts @FrozenPandaz @vsavkin
 /packages/devkit/nx.ts @FrozenPandaz @vsavkin
 
+# Gradle
+/packages/gradle/** @FrozenPandaz @xiongemi
+/e2e/gradle/** @FrozenPandaz @xiongemi
+
 # Nx-Plugin
 /docs/generated/packages/plugin/** @nrwl/nx-devkit-reviewers @nrwl/nx-docs-reviewers
 /docs/shared/packages/plugin/** @nrwl/nx-devkit-reviewers @nrwl/nx-docs-reviewers

e2e/gradle/jest.config.ts

@@ -0,0 +1,14 @@
+/* eslint-disable */
+export default {
+  transform: {
+    '^.+\\.[tj]sx?$': ['ts-jest', { tsconfig: '<rootDir>/tsconfig.spec.json' }],
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'html'],
+  maxWorkers: 1,
+  globals: {},
+  globalSetup: '../utils/global-setup.ts',
+  globalTeardown: '../utils/global-teardown.ts',
+  displayName: 'e2e-gradle',
+  testTimeout: 600000,
+  preset: '../../jest.preset.js',
+};

e2e/gradle/project.json

@@ -0,0 +1,10 @@
+{
+  "name": "e2e-gradle",
+  "$schema": "../../node_modules/nx/schemas/project-schema.json",
+  "sourceRoot": "e2e/gradle",
+  "projectType": "application",
+  "targets": {
+    "e2e": {}
+  },
+  "implicitDependencies": ["eslint"]
+}

e2e/gradle/src/gradle.test.ts

@@ -0,0 +1,87 @@
+import {
+  checkFilesExist,
+  cleanupProject,
+  createFile,
+  e2eConsoleLogger,
+  newProject,
+  runCLI,
+  runCommand,
+  uniq,
+  updateFile,
+  updateJson,
+} from '@nx/e2e/utils';
+import { execSync } from 'child_process';
+
+describe('Gradle', () => {
+  let gradleProjectName = uniq('my-gradle-project');
+
+  beforeAll(() => {
+    newProject();
+    createGradleProject(gradleProjectName);
+  });
+  afterAll(() => cleanupProject());
+
+  it('should build', () => {
+    const projects = runCLI(`show projects`);
+    expect(projects).toContain('app');
+    expect(projects).toContain('list');
+    expect(projects).toContain('utilities');
+    expect(projects).toContain(gradleProjectName);
+
+    const buildOutput = runCLI('build app', { verbose: true });
+    // app depends on list and utilities
+    expect(buildOutput).toContain('nx run list:build');
+    expect(buildOutput).toContain('nx run utilities:build');
+
+    checkFilesExist(
+      `app/build/libs/app.jar`,
+      `list/build/libs/list.jar`,
+      `utilities/build/libs/utilities.jar`
+    );
+  });
+
+  it('should track dependencies for new app', () => {
+    createFile(
+      'app2/build.gradle.kts',
+      `
+    plugins {
+        id("gradleProject.kotlin-application-conventions")
+    }
+    
+    dependencies {
+        implementation(project(":app"))
+    }
+      `
+    );
+    updateFile(`settings.gradle.kts`, (content) => {
+      content += `\r\ninclude("app2")`;
+      return content;
+    });
+    const buildOutput = runCLI('build app2', { verbose: true });
+    // app2 depends on app
+    expect(buildOutput).toContain('nx run app:build');
+  });
+});
+
+function createGradleProject(projectName: string) {
+  e2eConsoleLogger(`Using java version: ${execSync('java --version')}`);
+  e2eConsoleLogger(`Using gradle version: ${execSync('gradle --version')}`);
+  e2eConsoleLogger(execSync(`gradle help --task :init`).toString());
+  e2eConsoleLogger(
+    runCommand(
+      `gradle init --type kotlin-application --dsl kotlin --project-name ${projectName} --package gradleProject --no-incubating --split-project`
+    )
+  );
+  updateJson('nx.json', (nxJson) => {
+    nxJson.plugins = ['@nx/gradle'];
+    return nxJson;
+  });
+  createFile(
+    'build.gradle.kts',
+    `allprojects {
+      apply {
+          plugin("project-report")
+      }
+    }`
+  );
+}

e2e/gradle/tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "types": ["node", "jest"]
+  },
+  "include": [],
+  "files": [],
+  "references": [
+    {
+      "path": "./tsconfig.spec.json"
+    }
+  ]
+}

e2e/gradle/tsconfig.spec.json

@@ -0,0 +1,20 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "module": "commonjs",
+    "types": ["jest", "node"]
+  },
+  "include": [
+    "**/*.test.ts",
+    "**/*.spec.ts",
+    "**/*.spec.tsx",
+    "**/*.test.tsx",
+    "**/*.spec.js",
+    "**/*.test.js",
+    "**/*.spec.jsx",
+    "**/*.test.jsx",
+    "**/*.d.ts",
+    "jest.config.ts"
+  ]
+}

e2e/utils/create-project-utils.ts

@@ -43,6 +43,7 @@ const nxPackages = [
   `@nx/eslint-plugin`,
   `@nx/express`,
   `@nx/esbuild`,
+  `@nx/gradle`,
   `@nx/jest`,
   `@nx/js`,
   `@nx/eslint`,

nx-dev/nx-dev/public/images/icons/gradle.svg

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"
+aria-label="Gradle" role="img"
+viewBox="0 0 512 512">
+<rect
+width="512" height="512"
+rx="15%"
+fill="#ffffff"/>
+<path d="M427 132.7a61 61 0 00-85-1a6 6 0 000 9l7 8a6 6 0 008 1a35 35 0 0146 53c-48 48-113 -87 -259 -17a20 20 0 00-9 28l25 43a20 20 0 0027 7l1 0l0 0l11-6a257 257 0 0035-26a6 6 0 018 0v0a6 6 0 010 9a263 263 0 01-37 28h0l-11 6a31 31 0 01-15 4a32 32 0 01-28-16L126 219C81 259 53 314 68.13 392.26a6 6 0 006 4.74H100.6a6 6 0 005.93-5.3a40 40 0 0178.62 0a6 6 0 005.72 5.08h26.2a6 6 0 005.7-5.1a40 40 0 0178.6 0a6 6 0 005.7 5h26a6 6 0 005.8-5.72c1-37 10 -79 38.7 -100c98-73 72 -136 49.4 -158.3zm-100 110l-19-9v0a12 12 0 1119 9z" fill="#02303a"/></svg>

nx-dev/ui-references/src/lib/icons-map.ts

@@ -8,6 +8,7 @@ export const iconsMap: Record<string, string> = {
   'eslint-plugin': '/images/icons/eslint.svg',
   expo: '/images/icons/expo.svg',
   express: '/images/icons/express.svg',
+  gradle: '/images/icons/gradle.svg',
   jest: '/images/icons/jest.svg',
   js: '/images/icons/javascript.svg',
   eslint: '/images/icons/eslint.svg',

packages/gradle/.eslintrc.json

@@ -0,0 +1,37 @@
+{
+  "extends": ["../../.eslintrc.json"],
+  "ignorePatterns": ["!**/*"],
+  "overrides": [
+    {
+      "files": ["*.ts", "*.tsx", "*.js", "*.jsx"],
+      "rules": {}
+    },
+    {
+      "files": ["*.ts", "*.tsx"],
+      "rules": {}
+    },
+    {
+      "files": ["*.js", "*.jsx"],
+      "rules": {}
+    },
+    {
+      "files": ["*.json"],
+      "parser": "jsonc-eslint-parser",
+      "rules": {
+        "@nx/dependency-checks": [
+          "error",
+          {
+            "ignoredDependencies": ["nx"]
+          }
+        ]
+      }
+    },
+    {
+      "files": ["./package.json"],
+      "parser": "jsonc-eslint-parser",
+      "rules": {
+        "@nx/nx-plugin-checks": "error"
+      }
+    }
+  ]
+}

packages/gradle/README.md

@@ -0,0 +1,18 @@
+<p style="text-align: center;">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/nrwl/nx/master/images/nx-dark.svg">
+    <img alt="Nx - Smart Monorepos · Fast CI" src="https://raw.githubusercontent.com/nrwl/nx/master/images/nx-light.svg" width="100%">
+  </picture>
+</p>
+
+{{links}}
+
+<hr>
+
+# Nx: Smart Monorepos · Fast CI
+
+Nx is a build system with built-in tooling and advanced CI capabilities. It helps you maintain and scale monorepos, both locally and on CI.
+
+This package is a [Gradle plugin for Nx](https://nx.dev/gradle/overview).
+
+{{content}}

packages/gradle/index.ts

@@ -0,0 +1 @@
+export * from './plugin';

packages/gradle/jest.config.ts

@@ -0,0 +1,10 @@
+/* eslint-disable */
+export default {
+  transform: {
+    '^.+\\.[tj]sx?$': ['ts-jest', { tsconfig: '<rootDir>/tsconfig.spec.json' }],
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'html', 'json'],
+  globals: {},
+  displayName: 'gradle',
+  preset: '../../jest.preset.js',
+};

packages/gradle/migrations.json

@@ -0,0 +1,4 @@
+{
+  "generators": {},
+  "packageJsonUpdates": {}
+}

packages/gradle/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "@nx/gradle",
+  "version": "0.0.1",
+  "private": true,
+  "description": "The Nx Plugin for gradle",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/nrwl/nx.git",
+    "directory": "packages/gradle"
+  },
+  "keywords": [
+    "Monorepo",
+    "Java",
+    "Gradle",
+    "CLI"
+  ],
+  "main": "./index",
+  "typings": "./index.d.ts",
+  "author": "Victor Savkin",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/nrwl/nx/issues"
+  },
+  "homepage": "https://nx.dev",
+  "nx-migrate": {
+    "migrations": "./migrations.json"
+  },
+  "dependencies": {
+    "@nx/devkit": "file:../devkit"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/gradle/plugin.ts

@@ -0,0 +1,2 @@
+export { createDependencies } from './src/plugin/dependencies';
+export { createNodes } from './src/plugin/nodes';

packages/gradle/project.json

@@ -0,0 +1,73 @@
+{
+  "name": "gradle",
+  "$schema": "../../node_modules/nx/schemas/project-schema.json",
+  "sourceRoot": "packages/gradle/src",
+  "projectType": "library",
+  "targets": {
+    "nx-release-publish": {
+      "dependsOn": ["^nx-release-publish"],
+      "executor": "@nx/js:release-publish",
+      "options": {
+        "packageRoot": "build/packages/gradle"
+      }
+    },
+    "build-base": {
+      "executor": "@nx/js:tsc",
+      "options": {
+        "assets": [
+          {
+            "input": "packages/gradle",
+            "glob": "**/@(files|files-angular)/**",
+            "output": "/"
+          },
+          {
+            "input": "packages/gradle",
+            "glob": "**/files/**/.gitkeep",
+            "output": "/"
+          },
+          {
+            "input": "packages/gradle",
+            "glob": "**/*.json",
+            "ignore": ["**/tsconfig*.json", "project.json", ".eslintrc.json"],
+            "output": "/"
+          },
+          {
+            "input": "packages/gradle",
+            "glob": "**/*.js",
+            "ignore": ["**/jest.config.js"],
+            "output": "/"
+          },
+          {
+            "input": "packages/gradle",
+            "glob": "**/*.d.ts",
+            "output": "/"
+          },
+          {
+            "input": "",
+            "glob": "LICENSE",
+            "output": "/"
+          }
+        ]
+      }
+    },
+    "build": {
+      "executor": "nx:run-commands",
+      "outputs": ["{workspaceRoot}/build/packages/gradle"],
+      "options": {
+        "command": "node ./scripts/copy-readme.js gradle"
+      }
+    },
+    "lint": {
+      "executor": "@nx/eslint:lint",
+      "outputs": ["{options.outputFile}"]
+    },
+    "test": {
+      "executor": "@nx/jest:jest",
+      "outputs": ["{workspaceRoot}/coverage/{projectRoot}"],
+      "options": {
+        "jestConfig": "packages/gradle/jest.config.ts"
+      }
+    }
+  },
+  "tags": []
+}

packages/gradle/src/plugin/dependencies.ts

@@ -0,0 +1,124 @@
+import {
+  CreateDependencies,
+  CreateDependenciesContext,
+  DependencyType,
+  FileMap,
+  RawProjectGraphDependency,
+  validateDependency,
+} from '@nx/devkit';
+import { readFileSync } from 'node:fs';
+import { basename } from 'node:path';
+
+import {
+  getGradleReport,
+  invalidateGradleReportCache,
+} from '../utils/get-gradle-report';
+import { calculatedTargets, writeTargetsToCache } from './nodes';
+
+export const createDependencies: CreateDependencies = async (
+  _,
+  context: CreateDependenciesContext
+) => {
+  const gradleFiles: string[] = findGradleFiles(context.filesToProcess);
+  if (gradleFiles.length === 0) {
+    return [];
+  }
+
+  let dependencies: RawProjectGraphDependency[] = [];
+  const gradleDependenciesStart = performance.mark('gradleDependencies:start');
+  const {
+    gradleFileToGradleProjectMap,
+    gradleProjectToProjectName,
+    buildFileToDepsMap,
+  } = getGradleReport();
+
+  for (const gradleFile of gradleFiles) {
+    const gradleProject = gradleFileToGradleProjectMap.get(gradleFile);
+    const projectName = gradleProjectToProjectName.get(gradleProject);
+    const depsFile = buildFileToDepsMap.get(gradleFile);
+
+    if (projectName && depsFile) {
+      dependencies = dependencies.concat(
+        processGradleDependencies(
+          depsFile,
+          gradleProjectToProjectName,
+          projectName,
+          gradleFile,
+          context
+        )
+      );
+    }
+  }
+  const gradleDependenciesEnd = performance.mark('gradleDependencies:end');
+  performance.measure(
+    'gradleDependencies',
+    gradleDependenciesStart.name,
+    gradleDependenciesEnd.name
+  );
+
+  writeTargetsToCache(calculatedTargets);
+  if (dependencies.length) {
+    invalidateGradleReportCache();
+  }
+  return dependencies;
+};
+
+const gradleConfigFileNames = new Set(['build.gradle', 'build.gradle.kts']);
+
+function findGradleFiles(fileMap: FileMap): string[] {
+  const gradleFiles: string[] = [];
+
+  for (const [_, files] of Object.entries(fileMap.projectFileMap)) {
+    for (const file of files) {
+      if (gradleConfigFileNames.has(basename(file.file))) {
+        gradleFiles.push(file.file);
+      }
+    }
+  }
+
+  return gradleFiles;
+}
+
+function processGradleDependencies(
+  depsFile: string,
+  gradleProjectToProjectName: Map<string, string>,
+  sourceProjectName: string,
+  gradleFile: string,
+  context: CreateDependenciesContext
+) {
+  const dependencies: RawProjectGraphDependency[] = [];
+  const lines = readFileSync(depsFile).toString().split('\n');
+  let inDeps = false;
+  for (const line of lines) {
+    if (line.startsWith('implementationDependenciesMetadata')) {
+      inDeps = true;
+      continue;
+    }
+
+    if (inDeps) {
+      if (line === '') {
+        inDeps = false;
+        continue;
+      }
+      const [indents, dep] = line.split('--- ');
+      if ((indents === '\\' || indents === '+') && dep.startsWith('project ')) {
+        const gradleProjectName = dep
+          .substring('project '.length)
+          .replace(/ \(n\)$/, '')
+          .trim();
+        const target = gradleProjectToProjectName.get(
+          gradleProjectName
+        ) as string;
+        const dependency: RawProjectGraphDependency = {
+          source: sourceProjectName,
+          target,
+          type: DependencyType.static,
+          sourceFile: gradleFile,
+        };
+        validateDependency(dependency, context);
+        dependencies.push(dependency);
+      }
+    }
+  }
+  return dependencies;
+}

packages/gradle/src/plugin/nodes.ts

@@ -0,0 +1,182 @@
+import {
+  CreateNodes,
+  CreateNodesContext,
+  TargetConfiguration,
+  readJsonFile,
+  writeJsonFile,
+} from '@nx/devkit';
+import { calculateHashForCreateNodes } from '@nx/devkit/src/utils/calculate-hash-for-create-nodes';
+import { existsSync } from 'node:fs';
+import { dirname, join } from 'node:path';
+import { projectGraphCacheDirectory } from 'nx/src/utils/cache-directory';
+
+import { getGradleBinaryPath } from '../utils/exec-gradle';
+import { getGradleReport } from '../utils/get-gradle-report';
+
+const nonCacheableGradleTaskTypes = new Set(['Application']);
+const dependsOnMap = {
+  build: ['^build', 'classes'],
+  test: ['classes'],
+  classes: ['^classes'],
+};
+
+interface GradleTask {
+  type: string;
+  name: string;
+}
+
+export interface GradlePluginOptions {
+  testTargetName?: string;
+  classesTargetName?: string;
+  buildTargetName?: string;
+  [taskTargetName: string]: string | undefined;
+}
+
+const cachePath = join(projectGraphCacheDirectory, 'gradle.hash');
+const targetsCache = existsSync(cachePath) ? readTargetsCache() : {};
+
+export const calculatedTargets: Record<
+  string,
+  { name: string; targets: Record<string, TargetConfiguration> }
+> = {};
+
+function readTargetsCache(): Record<
+  string,
+  { name: string; targets: Record<string, TargetConfiguration> }
+> {
+  return readJsonFile(cachePath);
+}
+
+export function writeTargetsToCache(
+  targets: Record<
+    string,
+    { name: string; targets: Record<string, TargetConfiguration> }
+  >
+) {
+  writeJsonFile(cachePath, targets);
+}
+
+export const createNodes: CreateNodes<GradlePluginOptions> = [
+  '**/build.{gradle.kts,gradle}',
+  (
+    gradleFilePath,
+    options: GradlePluginOptions | undefined,
+    context: CreateNodesContext
+  ) => {
+    const projectRoot = dirname(gradleFilePath);
+
+    const hash = calculateHashForCreateNodes(
+      projectRoot,
+      options ?? {},
+      context
+    );
+    if (targetsCache[hash]) {
+      calculatedTargets[hash] = targetsCache[hash];
+      return {
+        projects: {
+          [projectRoot]: targetsCache[hash],
+        },
+      };
+    }
+
+    try {
+      const {
+        tasksMap,
+        gradleProjectToTasksTypeMap,
+        gradleFileToOutputDirsMap,
+        gradleFileToGradleProjectMap,
+        gradleProjectToProjectName,
+      } = getGradleReport();
+
+      const gradleProject = gradleFileToGradleProjectMap.get(
+        gradleFilePath
+      ) as string;
+      const projectName = gradleProjectToProjectName.get(gradleProject);
+      if (!projectName) {
+        return;
+      }
+
+      const availableTaskNames = tasksMap.get(gradleFilePath) as string[];
+      const tasksTypeMap = gradleProjectToTasksTypeMap.get(
+        gradleProject
+      ) as Map<string, string>;
+      const tasks: GradleTask[] = availableTaskNames.map((taskName) => {
+        return {
+          type: tasksTypeMap.get(taskName) ?? 'Unknown',
+          name: taskName,
+        };
+      });
+
+      const outputDirs = gradleFileToOutputDirsMap.get(gradleFilePath) as Map<
+        string,
+        string
+      >;
+
+      const targets = createGradleTargets(
+        tasks,
+        projectRoot,
+        options,
+        context,
+        outputDirs
+      );
+      calculatedTargets[hash] = {
+        name: projectName,
+        targets,
+      };
+
+      return {
+        projects: {
+          [projectRoot]: {
+            root: projectRoot,
+            name: projectName,
+            targets,
+          },
+        },
+      };
+    } catch (e) {
+      console.error(e);
+      return {};
+    }
+  },
+];
+
+function createGradleTargets(
+  tasks: GradleTask[],
+  projectRoot: string,
+  options: GradlePluginOptions | undefined,
+  context: CreateNodesContext,
+  outputDirs: Map<string, string>
+): Record<string, TargetConfiguration> {
+  const inputsMap = createInputsMap(context);
+
+  const targets: Record<string, TargetConfiguration> = {};
+  for (const task of tasks) {
+    const targetName = options?.[`${task.name}TargetName`] ?? task.name;
+
+    const outputs = outputDirs.get(task.name);
+    targets[targetName] = {
+      command: `${getGradleBinaryPath()} ${task.name}`,
+      options: {
+        cwd: projectRoot,
+      },
+      cache: !nonCacheableGradleTaskTypes.has(task.type),
+      inputs: inputsMap[task.name],
+      outputs: outputs ? [outputs] : undefined,
+      dependsOn: dependsOnMap[task.name],
+    };
+  }
+  return targets;
+}
+
+function createInputsMap(
+  context: CreateNodesContext
+): Record<string, TargetConfiguration['inputs']> {
+  const namedInputs = context.nxJsonConfiguration.namedInputs;
+  return {
+    build: namedInputs?.production
+      ? ['production', '^production']
+      : ['default', '^default'],
+    test: ['default', namedInputs?.production ? '^production' : '^default'],
+    classes: ['default', '^default'],
+  };
+}

packages/gradle/src/utils/exec-gradle.ts

@@ -0,0 +1,63 @@
+import { workspaceRoot } from '@nx/devkit';
+import { ExecFileOptions } from 'child_process';
+import {
+  ExecFileSyncOptionsWithBufferEncoding,
+  execFile,
+  execFileSync,
+} from 'node:child_process';
+import { existsSync } from 'node:fs';
+import { join } from 'node:path';
+
+export function execGradle(
+  args: string[],
+  execOptions: ExecFileSyncOptionsWithBufferEncoding
+) {
+  const gradleBinaryPath = getGradleBinaryPath();
+
+  return execFileSync(gradleBinaryPath, args, execOptions);
+}
+
+export function getGradleBinaryPath() {
+  const gradleFile = process.platform.startsWith('win')
+    ? 'gradlew.bat'
+    : 'gradlew';
+  const gradleBinaryPath = join(workspaceRoot, gradleFile);
+  if (!existsSync(gradleBinaryPath)) {
+    throw new Error('Gradle is not setup. Run "gradle init"');
+  }
+
+  return gradleBinaryPath;
+}
+
+export function execGradleAsync(
+  args: ReadonlyArray<string>,
+  execOptions: ExecFileOptions
+) {
+  const gradleBinaryPath = getGradleBinaryPath();
+  if (!existsSync(gradleBinaryPath)) {
+    throw new Error('Gradle is not setup. Run "gradle init"');
+  }
+
+  return new Promise<Buffer>((res, rej) => {
+    const cp = execFile(gradleBinaryPath, args, execOptions);
+
+    let stdout = Buffer.from('');
+    cp.stdout?.on('data', (data) => {
+      stdout += data;
+    });
+
+    cp.on('exit', (code) => {
+      if (code === 0) {
+        res(stdout);
+      } else {
+        rej(
+          new Error(
+            `Executing Gradle with ${args.join(
+              ' '
+            )} failed with code: ${code}. \nLogs: ${stdout}`
+          )
+        );
+      }
+    });
+  });
+}

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

@@ -0,0 +1,185 @@
+import { readFileSync } from 'node:fs';
+import { dirname, join, relative } from 'node:path';
+
+import { workspaceRoot } from '@nx/devkit';
+import { hashWithWorkspaceContext } from 'nx/src/utils/workspace-context';
+
+import { execGradle } from './exec-gradle';
+
+interface GradleReport {
+  gradleFileToGradleProjectMap: Map<string, string>;
+  buildFileToDepsMap: Map<string, string>;
+  gradleFileToOutputDirsMap: Map<string, Map<string, string>>;
+  gradleProjectToTasksTypeMap: Map<string, Map<string, string>>;
+  tasksMap: Map<string, string[]>;
+  gradleProjectToProjectName: Map<string, string>;
+}
+
+let gradleReportCache: GradleReport;
+
+export function invalidateGradleReportCache() {
+  gradleReportCache = undefined;
+}
+
+export function getGradleReport(): GradleReport {
+  if (gradleReportCache) {
+    return gradleReportCache;
+  }
+
+  const gradleProjectReportStart = performance.mark(
+    'gradleProjectReport:start'
+  );
+  const projectReportLines = execGradle(['projectReport'], {
+    cwd: workspaceRoot,
+  })
+    .toString()
+    .split('\n');
+  const gradleProjectReportEnd = performance.mark('gradleProjectReport:end');
+  performance.measure(
+    'gradleProjectReport',
+    gradleProjectReportStart.name,
+    gradleProjectReportEnd.name
+  );
+  gradleReportCache = processProjectReports(projectReportLines);
+  return gradleReportCache;
+}
+
+function processProjectReports(projectReportLines: string[]): GradleReport {
+  /**
+   * Map of Gradle File path to Gradle Project Name
+   */
+  const gradleFileToGradleProjectMap = new Map<string, string>();
+  /**
+   * Map of Gradle Project Name to Gradle File
+   */
+  const gradleProjectToGradleFileMap = new Map<string, string>();
+  const dependenciesMap = new Map<string, string>();
+  /**
+   * Map of Gradle Build File to available tasks
+   */
+  const tasksMap = new Map<string, string[]>();
+  /**
+   * Map of Gradle Build File to tasks type map
+   */
+  const gradleProjectToTasksTypeMap = new Map<string, Map<string, string>>();
+  const gradleProjectToProjectName = new Map<string, string>();
+  /**
+   * Map of buildFile to dependencies report path
+   */
+  const buildFileToDepsMap = new Map<string, string>();
+  /**
+   * Map fo possible output files of each gradle file
+   * e.g. {build.gradle.kts: { projectReportDir: '' testReportDir: '' }}
+   */
+  const gradleFileToOutputDirsMap = new Map<string, Map<string, string>>();
+
+  projectReportLines.forEach((line, index) => {
+    if (line.startsWith('> Task ')) {
+      const nextLine = projectReportLines[index + 1];
+      if (line.endsWith(':dependencyReport')) {
+        const gradleProject = line.substring(
+          '> Task '.length,
+          line.length - ':dependencyReport'.length
+        );
+        const [_, file] = nextLine.split('file://');
+        dependenciesMap.set(gradleProject, file);
+      }
+      if (line.endsWith('propertyReport')) {
+        const gradleProject = line.substring(
+          '> Task '.length,
+          line.length - ':propertyReport'.length
+        );
+        const [_, file] = nextLine.split('file://');
+        const propertyReportLines = readFileSync(file).toString().split('\n');
+
+        let projectName: string,
+          absBuildFilePath: string,
+          absBuildDirPath: string;
+        const tasks: string[] = [];
+        const outputDirMap = new Map<string, string>();
+        for (const line of propertyReportLines) {
+          if (line.startsWith('name: ')) {
+            projectName = line.substring('name: '.length);
+          }
+          if (line.startsWith('buildFile: ')) {
+            absBuildFilePath = line.substring('buildFile: '.length);
+          }
+          if (line.startsWith('buildDir: ')) {
+            absBuildDirPath = line.substring('buildDir: '.length);
+          }
+          if (line.includes(': task ')) {
+            const taskSegments = line.split(': task ');
+            tasks.push(taskSegments[0]);
+          }
+          if (line.includes('Dir: ')) {
+            const [dirName, dirPath] = line.split(': ');
+            const taskName = dirName.replace('Dir', '');
+            outputDirMap.set(
+              taskName,
+              `{workspaceRoot}/${relative(workspaceRoot, dirPath)}`
+            );
+          }
+        }
+
+        if (!projectName || !absBuildFilePath || !absBuildDirPath) {
+          return;
+        }
+        const buildFile = relative(workspaceRoot, absBuildFilePath);
+        const buildDir = relative(workspaceRoot, absBuildDirPath);
+        buildFileToDepsMap.set(
+          buildFile,
+          dependenciesMap.get(gradleProject) as string
+        );
+
+        outputDirMap.set('build', `{workspaceRoot}/${buildDir}`);
+        outputDirMap.set(
+          'classes',
+          `{workspaceRoot}/${join(buildDir, 'classes')}`
+        );
+
+        gradleFileToOutputDirsMap.set(buildFile, outputDirMap);
+        gradleFileToGradleProjectMap.set(buildFile, gradleProject);
+        gradleProjectToGradleFileMap.set(gradleProject, buildFile);
+        gradleProjectToProjectName.set(gradleProject, projectName);
+        tasksMap.set(buildFile, tasks);
+      }
+      if (line.endsWith('taskReport')) {
+        const gradleProject = line.substring(
+          '> Task '.length,
+          line.length - ':taskReport'.length
+        );
+        const [_, file] = nextLine.split('file://');
+        const taskTypeMap = new Map<string, string>();
+        const tasksFileLines = readFileSync(file).toString().split('\n');
+
+        let i = 0;
+        while (i < tasksFileLines.length) {
+          const line = tasksFileLines[i];
+
+          if (line.endsWith('tasks')) {
+            const dashes = new Array(line.length + 1).join('-');
+            if (tasksFileLines[i + 1] === dashes) {
+              const type = line.substring(0, line.length - ' tasks'.length);
+              i++;
+              while (tasksFileLines[++i] !== '') {
+                const [taskName] = tasksFileLines[i].split(' - ');
+                taskTypeMap.set(taskName, type);
+              }
+            }
+          }
+          i++;
+        }
+        gradleProjectToTasksTypeMap.set(gradleProject, taskTypeMap);
+      }
+    }
+  });
+
+  return {
+    gradleFileToGradleProjectMap,
+    buildFileToDepsMap,
+    gradleFileToOutputDirsMap,
+    gradleProjectToTasksTypeMap,
+    tasksMap,
+    gradleProjectToProjectName,
+  };
+}

packages/gradle/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {},
+  "files": [],
+  "include": [],
+  "references": [
+    {
+      "path": "./tsconfig.lib.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    }
+  ]
+}

packages/gradle/tsconfig.lib.json

@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "declaration": true,
+    "types": ["node"]
+  },
+  "include": ["**/*.ts"],
+  "exclude": ["jest.config.ts", "**/*.spec.ts", "**/*.test.ts"]
+}

packages/gradle/tsconfig.spec.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "module": "commonjs",
+    "types": ["jest", "node"]
+  },
+  "include": ["jest.config.ts", "**/*.test.ts", "**/*.spec.ts", "**/*.d.ts"]
+}

tsconfig.base.json

@@ -35,6 +35,8 @@
       "@nx/expo": ["packages/expo"],
       "@nx/expo/*": ["packages/expo/*"],
       "@nx/express": ["packages/express"],
+      "@nx/gradle": ["packages/gradle/src/index.ts"],
+      "@nx/gradle/*": ["packages/gradle/*"],
       "@nx/graph/project-details": ["graph/project-details/src/index.ts"],
       "@nx/graph/shared": ["graph/shared/src/index.ts"],
       "@nx/graph/ui-code-block": ["graph/ui-code-block/src/index.ts"],