feat(@angular/cli): allow using Deno as package manager

Author: csvn

packages/angular/cli/lib/config/workspace-schema.json

@@ -47,7 +47,7 @@
         "packageManager": {
           "description": "Specify which package manager tool to use.",
           "type": "string",
-          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun"]
+          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun", "deno"]
         },
         "warnings": {
           "description": "Control CLI specific console warnings",
@@ -101,7 +101,7 @@
         "packageManager": {
           "description": "Specify which package manager tool to use.",
           "type": "string",
-          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun"]
+          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun", "deno"]
         },
         "warnings": {
           "description": "Control CLI specific console warnings",

packages/angular/cli/src/commands/update/schematic/schema.json

@@ -57,7 +57,7 @@
       "description": "The preferred package manager configuration files to use for registry settings.",
       "type": "string",
       "default": "npm",
-      "enum": ["npm", "yarn", "cnpm", "pnpm", "bun"]
+      "enum": ["npm", "yarn", "cnpm", "pnpm", "bun", "deno"]
     }
   },
   "required": []

packages/angular/cli/src/utilities/package-manager.ts

@@ -148,6 +148,14 @@ export class PackageManagerUtils {
           prefix: '--cwd',
           noLockfile: '',
         };
+      case PackageManager.Deno:
+        return {
+          saveDev: '--dev',
+          install: 'add',
+          installAll: 'install',
+          prefix: '--root',
+          noLockfile: '--no-lock',
+        };
       default:
         return {
           saveDev: '--save-dev',
@@ -194,7 +202,8 @@ export class PackageManagerUtils {
   @memoize
   private getVersion(name: PackageManager): string | undefined {
     try {
-      return execSync(`${name} --version`, {
+      const versionArg = name !== PackageManager.Deno ? '--version' : '-v';
+      const version = execSync(`${name} ${versionArg}`, {
         encoding: 'utf8',
         stdio: ['ignore', 'pipe', 'ignore'],
         env: {
@@ -204,6 +213,13 @@ export class PackageManagerUtils {
           NPM_CONFIG_UPDATE_NOTIFIER: 'false',
         },
       }).trim();
+
+      if (name === PackageManager.Deno) {
+        // Deno CLI outputs "deno 2.4.4"
+        return version.replace('deno ', '');
+      }
+
+      return version;
     } catch {
       return undefined;
     }
@@ -220,14 +236,21 @@ export class PackageManagerUtils {
     const hasYarnLock = this.hasLockfile(PackageManager.Yarn);
     const hasPnpmLock = this.hasLockfile(PackageManager.Pnpm);
     const hasBunLock = this.hasLockfile(PackageManager.Bun);
+    const hasDenoLock = this.hasLockfile(PackageManager.Deno);
 
     // PERF NOTE: `this.getVersion` spawns the package a the child_process which can take around ~300ms at times.
     // Therefore, we should only call this method when needed. IE: don't call `this.getVersion(PackageManager.Pnpm)` unless truly needed.
     // The result of this method is not stored in a variable because it's memoized.
 
     if (hasNpmLock) {
       // Has NPM lock file.
-      if (!hasYarnLock && !hasPnpmLock && !hasBunLock && this.getVersion(PackageManager.Npm)) {
+      if (
+        !hasYarnLock &&
+        !hasPnpmLock &&
+        !hasBunLock &&
+        !hasDenoLock &&
+        this.getVersion(PackageManager.Npm)
+      ) {
         // Only NPM lock file and NPM binary is available.
         return PackageManager.Npm;
       }
@@ -242,6 +265,9 @@ export class PackageManagerUtils {
       } else if (hasBunLock && this.getVersion(PackageManager.Bun)) {
         // Bun lock file and Bun binary is available.
         return PackageManager.Bun;
+      } else if (hasDenoLock && this.getVersion(PackageManager.Deno)) {
+        // Deno lock file and Deno binary is available.
+        return PackageManager.Deno;
       }
     }
 
@@ -250,13 +276,16 @@ export class PackageManagerUtils {
       const hasYarn = !!this.getVersion(PackageManager.Yarn);
       const hasPnpm = !!this.getVersion(PackageManager.Pnpm);
       const hasBun = !!this.getVersion(PackageManager.Bun);
+      const hasDeno = !!this.getVersion(PackageManager.Deno);
 
-      if (hasYarn && !hasPnpm && !hasBun) {
+      if (hasYarn && !hasPnpm && !hasBun && !hasDeno) {
         return PackageManager.Yarn;
-      } else if (hasPnpm && !hasYarn && !hasBun) {
+      } else if (hasPnpm && !hasYarn && !hasBun && !hasDeno) {
         return PackageManager.Pnpm;
-      } else if (hasBun && !hasYarn && !hasPnpm) {
+      } else if (hasBun && !hasYarn && !hasPnpm && !hasDeno) {
         return PackageManager.Bun;
+      } else if (hasDeno && !hasYarn && !hasPnpm && !hasBun) {
+        return PackageManager.Deno;
       }
     }
 
@@ -277,6 +306,9 @@ export class PackageManagerUtils {
       case PackageManager.Bun:
         lockfileName = 'bun.lockb';
         break;
+      case PackageManager.Deno:
+        lockfileName = 'deno.lock';
+        break;
       case PackageManager.Npm:
       default:
         lockfileName = 'package-lock.json';

packages/angular/create/README.md

@@ -29,3 +29,9 @@ pnpm create @angular [project-name] [...options]
 ```
 bun create @angular [project-name] [...options]
 ```
+
+### deno
+
+```
+deno init --npm @angular [project-name] [...options]
+```

packages/angular/create/src/index.ts

@@ -17,7 +17,7 @@ const hasPackageManagerArg = args.some((a) => a.startsWith('--package-manager'))
 if (!hasPackageManagerArg) {
   // Ex: yarn/1.22.18 npm/? node/v16.15.1 linux x64
   const packageManager = process.env['npm_config_user_agent']?.split('/')[0];
-  if (packageManager && ['npm', 'pnpm', 'yarn', 'cnpm', 'bun'].includes(packageManager)) {
+  if (packageManager && ['npm', 'pnpm', 'yarn', 'cnpm', 'bun', 'deno'].includes(packageManager)) {
     args.push('--package-manager', packageManager);
   }
 }

packages/angular_devkit/schematics/tasks/package-manager/executor.ts

@@ -45,6 +45,12 @@ const packageManagers: { [name: string]: PackageManagerProfile } = {
       installPackage: 'add',
     },
   },
+  'deno': {
+    commands: {
+      installAll: 'install',
+      installPackage: 'add',
+    },
+  },
   'pnpm': {
     commands: {
       installAll: 'install',

packages/angular_devkit/schematics_cli/blank/schema.json

@@ -15,7 +15,7 @@
     "packageManager": {
       "description": "The package manager used to install dependencies.",
       "type": "string",
-      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun"],
+      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun", "deno"],
       "default": "npm"
     },
     "author": {

packages/angular_devkit/schematics_cli/schematic/schema.json

@@ -15,7 +15,7 @@
     "packageManager": {
       "description": "The package manager used to install dependencies.",
       "type": "string",
-      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun"],
+      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun", "deno"],
       "default": "npm"
     }
   },

packages/schematics/angular/ng-new/schema.json

@@ -126,7 +126,7 @@
     "packageManager": {
       "description": "The package manager used to install dependencies.",
       "type": "string",
-      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun"]
+      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun", "deno"]
     },
     "standalone": {
       "description": "Creates an application based upon the standalone API, without NgModules.",

packages/schematics/angular/workspace/schema.json

@@ -40,7 +40,7 @@
     "packageManager": {
       "description": "The package manager to use for installing dependencies.",
       "type": "string",
-      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun"]
+      "enum": ["npm", "yarn", "pnpm", "cnpm", "bun", "deno"]
     }
   },
   "required": ["name", "version"]