feat: adds support for detecting NX monorepos

Author: Cephyric-gh

.gitignore

@@ -143,3 +143,5 @@ Temporary Items
 
 .netlify
 .angular
+.nx
+.idea

package.json

@@ -47,6 +47,8 @@
     "pretest:fixtures:angular-19-common-engine": "cd tests/fixtures/angular-19-common-engine && npm ci",
     "pretest:fixtures:angular-19-app-engine": "cd tests/fixtures/angular-19-app-engine && npm ci",
     "pretest:fixtures:angular-19-prerender-false": "cd tests/fixtures/angular-19-prerender-false && npm ci",
+    "pretest:fixtures:nx-angular-19-common-engine": "cd tests/fixtures/nx-angular-19-common-engine && npm ci",
+    "pretest:fixtures:nx-angular-19-app-engine": "cd tests/fixtures/nx-angular-19-app-engine && npm ci",
     "pretest": "run-s pretest:*",
     "test": "node --test"
   },

src/helpers/fixOutputDir.js

@@ -3,13 +3,24 @@ const { join } = require('path')
 const getAngularJson = require('./getAngularJson')
 const { getProject } = require('./setUpEdgeFunction')
 
-const fixOutputDir = async function ({ failBuild, failPlugin, siteRoot, PUBLISH_DIR, IS_LOCAL, netlifyConfig }) {
-  const angularJson = getAngularJson({ failPlugin, siteRoot })
-  const project = getProject(angularJson, failBuild)
+const fixOutputDir = async function ({
+  failBuild,
+  failPlugin,
+  siteRoot,
+  PUBLISH_DIR,
+  IS_LOCAL,
+  netlifyConfig,
+  workspaceType,
+}) {
+  const angularJson = getAngularJson({ failPlugin, siteRoot, workspaceType })
+  const project = getProject(angularJson, failBuild, workspaceType === 'nx')
 
-  const { outputPath } = project.architect.build.options
+  const { outputPath } = workspaceType === 'nx' ? project.targets.build.options : project.architect.build.options
 
-  const isApplicationBuilder = project.architect.build.builder.endsWith(':application')
+  const isApplicationBuilder =
+    workspaceType === 'nx'
+      ? project.targets.build.executor.endsWith(':application')
+      : project.architect.build.builder.endsWith(':application')
   const correctPublishDir = isApplicationBuilder ? join(outputPath, 'browser') : outputPath
   if (correctPublishDir === PUBLISH_DIR) {
     return

src/helpers/getAngularJson.js

@@ -1,4 +1,5 @@
 const { join } = require('node:path')
+const process = require('process')
 
 const { existsSync, readJsonSync } = require('fs-extra')
 
@@ -7,10 +8,31 @@ const { existsSync, readJsonSync } = require('fs-extra')
  * @param {Object} obj
  * @param {string} obj.siteRoot Root directory of an app
  * @param {(msg: string) => never} obj.failPlugin Function to fail the plugin
+ * @param {'nx' | 'default'} obj.workspaceType Type of monorepo, dictates what json file to open
  *
  * @returns {any}
  */
-const getAngularJson = function ({ failPlugin, siteRoot }) {
+const getAngularJson = function ({ failPlugin, siteRoot, workspaceType }) {
+  if (workspaceType === 'nx') {
+    const selectedProject = process.env.ANGULAR_PROJECT
+
+    if (!selectedProject) {
+      return failPlugin(
+        `The ANGULAR_PROJECT environment variable is not set. This is needed to determine the project.json to load in an NX workspace`,
+      )
+    }
+
+    if (!existsSync(join(siteRoot, 'apps', selectedProject, 'project.json'))) {
+      return failPlugin(`No project.json found in apps/${selectedProject}`)
+    }
+
+    try {
+      return readJsonSync(join(siteRoot, 'apps', selectedProject, 'project.json'))
+    } catch {
+      return failPlugin(`Could not parse the contents of project.json`)
+    }
+  }
+
   if (!existsSync(join(siteRoot, 'angular.json'))) {
     return failPlugin(`No angular.json found at project root`)
   }

src/helpers/getAngularRoot.js

@@ -5,23 +5,33 @@ const process = require('process')
 /**
  * If we're in a monorepo then the site root may not be the same as the base directory
  * If there's no angular.json in the root, we instead look for it 2 levels up from the publish dir
+ *
+ * @returns {{siteRoot: string, workspaceType: 'nx' | 'default'}}
  */
 const getAngularRoot = ({ failBuild, netlifyConfig }) => {
   let angularRoot = process.cwd()
+
+  // This could be an NX repo, so check for the existence of nx.json too
+  let angularJsonExists = existsSync(path.join(angularRoot, 'angular.json'))
+  let nxJsonExists = existsSync(path.join(angularRoot, 'nx.json'))
+
   if (
-    !existsSync(path.join(angularRoot, 'angular.json')) &&
+    !angularJsonExists &&
+    !nxJsonExists &&
     netlifyConfig.build.publish &&
     netlifyConfig.build.publish !== angularRoot
   ) {
     angularRoot = path.dirname(path.resolve(path.join(netlifyConfig.build.publish, '..', '..')))
+    angularJsonExists = existsSync(path.join(angularRoot, 'angular.json'))
+    nxJsonExists = existsSync(path.join(angularRoot, 'nx.json'))
 
-    if (!existsSync(path.join(angularRoot, 'angular.json'))) {
+    if (!angularJsonExists && !nxJsonExists) {
       return failBuild(
-        `Could not locate your angular.json at your project root or two levels above your publish directory. Make sure your publish directory is set to "{PATH_TO_YOUR_SITE}/dist/{YOUR_PROJECT_NAME}/browser", where {YOUR_PROJECT_NAME} is 'defaultProject' in your angular.json.`,
+        `Could not locate your angular.json/nx.json at your project root or two levels above your publish directory. Make sure your publish directory is set to "{PATH_TO_YOUR_SITE}/dist/{YOUR_PROJECT_NAME}/browser", where {YOUR_PROJECT_NAME} is 'defaultProject' in your angular.json.`,
       )
     }
   }
-  return angularRoot
+  return { siteRoot: angularRoot, workspaceType: nxJsonExists ? 'nx' : 'default' }
 }
 
 module.exports = getAngularRoot

src/helpers/knownServerTsSignatures.json

@@ -4,5 +4,7 @@
   "0e451aa946aca10c9d6782ac008748fcd39236d3ad1cc9868100a2981105e010": "CommonEngine",
   "577f7bc87c16bd10bac499e228ef24d23dc4dd516e469b5db3eefae4edcf6345": "CommonEngine",
   "5678601ed12556305074503967b44ae42c45c268579db057c25cbf4b21a7212e": "CommonEngine",
-  "76419eb94b4b8672ba3bd79d34c5a66c7c30ff173995ecc6e0adc5808b86822d": "AppEngine"
+  "33d360cdf4819d90afeecd49952241191ee490900fa919a46f990186be3e8b5f": "CommonEngine",
+  "76419eb94b4b8672ba3bd79d34c5a66c7c30ff173995ecc6e0adc5808b86822d": "AppEngine",
+  "a5aad843a116e34ce61264117cba981cff5eea3e6672815a4db08e7b4e5599d6": "AppEngine"
 }

src/helpers/serverModuleHelpers.js

@@ -95,22 +95,21 @@ const guessUsedEngine = function (serverModuleContents) {
  * @param {string} obj.angularVersion Angular version
  * @param {string} obj.siteRoot Root directory of an app
  * @param {(msg: string) => never} obj.failPlugin Function to fail the plugin
+ * @param {'nx' | 'default'} obj.workspaceType The workspace type being parsed
  * * @param {(msg: string) => never} obj.failBuild Function to fail the build
  *
  * @returns {'AppEngine' | 'CommonEngine' | undefined}
  */
-const fixServerTs = async function ({ angularVersion, siteRoot, failPlugin, failBuild }) {
+const fixServerTs = async function ({ angularVersion, siteRoot, failPlugin, failBuild, workspaceType }) {
   if (!satisfies(angularVersion, '>=19.0.0-rc', { includePrerelease: true })) {
     // for pre-19 versions, we don't need to do anything
     return
   }
 
-  const angularJson = getAngularJson({ failPlugin, siteRoot })
+  const angularJson = getAngularJson({ failPlugin, siteRoot, workspaceType })
 
-  const project = getProject(angularJson, failBuild)
-  const {
-    architect: { build },
-  } = project
+  const project = getProject(angularJson, failBuild, workspaceType === 'nx')
+  const build = workspaceType === 'nx' ? project.targets.build : project.architect.build
 
   serverModuleLocation = build?.options?.ssr?.entry
   if (!serverModuleLocation || !existsSync(serverModuleLocation)) {
@@ -131,7 +130,7 @@ const fixServerTs = async function ({ angularVersion, siteRoot, failPlugin, fail
     )
   }
 
-  // check wether project is using stable CommonEngine or Developer Preview AppEngine
+  // check whether project is using stable CommonEngine or Developer Preview AppEngine
   const serverModuleContents = await readFile(serverModuleLocation, 'utf8')
 
   const usedEngineBasedOnKnownSignatures = getEngineBasedOnKnownSignatures(serverModuleContents)

src/helpers/setUpEdgeFunction.js

@@ -22,8 +22,17 @@ const getAllFilesIn = (dir) =>
 
 const toPosix = (path) => path.split(sep).join(posix.sep)
 
-const getProject = (angularJson, failBuild) => {
+const getProject = (angularJson, failBuild, isNxWorkspace = false) => {
   const selectedProject = process.env.ANGULAR_PROJECT
+
+  if (isNxWorkspace) {
+    if (!selectedProject) {
+      return failBuild(``)
+    }
+
+    return angularJson
+  }
+
   if (selectedProject) {
     const project = angularJson.projects[selectedProject]
     if (!project) {
@@ -98,7 +107,7 @@ const setUpEdgeFunction = async ({ outputDir, constants, failBuild, usedEngine }
     const document = Buffer.from(${JSON.stringify(
       Buffer.from(html, 'utf-8').toString('base64'),
     )}, 'base64').toString("utf-8");
-    
+
     export default async (request, context) => {
       const html = await renderApplication(bootstrap, {
         url: request.url,
@@ -155,7 +164,7 @@ const setUpEdgeFunction = async ({ outputDir, constants, failBuild, usedEngine }
             // reading file is needed for inlining CSS, but failing to do so is
             // not causing fatal error so we just ignore it here
           }
-          
+
           return originalReadFile.apply(globalThis.Deno, args)
         }
       } catch {
@@ -194,7 +203,7 @@ const setUpEdgeFunction = async ({ outputDir, constants, failBuild, usedEngine }
     ssrFunctionContent = /* javascript */ `
     import { netlifyAppEngineHandler } from "${toPosix(relative(edgeFunctionDir, serverDistRoot))}/server.mjs";
     import "./fixup-event.mjs";
-    
+
     export default netlifyAppEngineHandler;
     `
   }

src/index.js

@@ -16,7 +16,7 @@ let usedEngine
 module.exports = {
   async onPreBuild({ netlifyConfig, utils, constants }) {
     const { failBuild, failPlugin } = utils.build
-    const siteRoot = getAngularRoot({ failBuild, netlifyConfig })
+    const { siteRoot, workspaceType } = getAngularRoot({ failBuild, netlifyConfig })
     const angularVersion = await getAngularVersion(siteRoot)
     isValidAngularProject = validateAngularVersion(angularVersion)
 
@@ -36,9 +36,10 @@ module.exports = {
       PUBLISH_DIR: constants.PUBLISH_DIR,
       IS_LOCAL: constants.IS_LOCAL,
       netlifyConfig,
+      workspaceType,
     })
 
-    usedEngine = await fixServerTs({ angularVersion, siteRoot, failPlugin, failBuild })
+    usedEngine = await fixServerTs({ angularVersion, siteRoot, failPlugin, failBuild, workspaceType })
   },
   async onBuild({ utils, netlifyConfig, constants }) {
     await revertServerTsFix()
@@ -48,13 +49,11 @@ module.exports = {
 
     const { failBuild, failPlugin } = utils.build
 
-    const siteRoot = getAngularRoot({ failBuild, netlifyConfig })
-    const angularJson = getAngularJson({ failPlugin, siteRoot })
+    const { siteRoot, workspaceType } = getAngularRoot({ failBuild, netlifyConfig, onBuild: true })
+    const angularJson = getAngularJson({ failPlugin, siteRoot, workspaceType })
 
-    const project = getProject(angularJson, failBuild)
-    const {
-      architect: { build },
-    } = project
+    const project = getProject(angularJson, failBuild, workspaceType === 'nx')
+    const build = workspaceType === 'nx' ? project.targets.build : project.architect.build
     const outputDir = build?.options?.outputPath
     if (!outputDir || !existsSync(outputDir)) {
       return failBuild('Could not find build output directory')

tests/fixtures/nx-angular-19-app-engine/.editorconfig

@@ -0,0 +1,17 @@
+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+ij_typescript_use_double_quotes = false
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

tests/fixtures/nx-angular-19-app-engine/.gitignore

@@ -0,0 +1,47 @@
+# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+
+# System files
+.DS_Store
+Thumbs.db
+
+
+
+.nx/cache
+.nx/workspace-data

tests/fixtures/nx-angular-19-app-engine/.prettierignore

@@ -0,0 +1,5 @@
+# Add files here to ignore them from prettier formatting
+/dist
+/coverage
+/.nx/cache
+/.nx/workspace-data

tests/fixtures/nx-angular-19-app-engine/.prettierrc

@@ -0,0 +1,3 @@
+{
+  "singleQuote": true
+}

tests/fixtures/nx-angular-19-app-engine/.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+  "recommendations": [
+    "angular.ng-template",
+    "nrwl.angular-console",
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode"
+  ]
+}

tests/fixtures/nx-angular-19-app-engine/.vscode/launch.json

@@ -0,0 +1,20 @@
+{
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "ng serve",
+      "type": "chrome",
+      "request": "launch",
+      "preLaunchTask": "npm: start",
+      "url": "http://localhost:4200/"
+    },
+    {
+      "name": "ng test",
+      "type": "chrome",
+      "request": "launch",
+      "preLaunchTask": "npm: test",
+      "url": "http://localhost:9876/debug.html"
+    }
+  ]
+}