From b3e206741c5b59b8563b7c60a1f66c49802549e7 Mon Sep 17 00:00:00 2001
From: Alan Agius <alanagius@google.com>
Date: Thu, 25 Jan 2024 12:44:46 +0000
Subject: [PATCH] feat(@angular/cli): add support to `bun` package manager

This commit adds support to use `bun` as a package manager.

Closes #26837
---
 .../cli/lib/config/workspace-schema.json      |  4 ++--
 .../src/commands/update/schematic/schema.json |  2 +-
 .../cli/src/utilities/package-manager.ts      | 24 ++++++++++++++++---
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/packages/angular/cli/lib/config/workspace-schema.json b/packages/angular/cli/lib/config/workspace-schema.json
index 64d10f7b7225..2695b69e9215 100644
--- a/packages/angular/cli/lib/config/workspace-schema.json
+++ b/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"]
+          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun"]
         },
         "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"]
+          "enum": ["npm", "cnpm", "yarn", "pnpm", "bun"]
         },
         "warnings": {
           "description": "Control CLI specific console warnings",
diff --git a/packages/angular/cli/src/commands/update/schematic/schema.json b/packages/angular/cli/src/commands/update/schematic/schema.json
index 9811d1a3fe9a..649d2f5db01f 100644
--- a/packages/angular/cli/src/commands/update/schematic/schema.json
+++ b/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"]
+      "enum": ["npm", "yarn", "cnpm", "pnpm", "bun"]
     }
   },
   "required": []
diff --git a/packages/angular/cli/src/utilities/package-manager.ts b/packages/angular/cli/src/utilities/package-manager.ts
index 2290960d0fe5..74710a05df64 100644
--- a/packages/angular/cli/src/utilities/package-manager.ts
+++ b/packages/angular/cli/src/utilities/package-manager.ts
@@ -141,6 +141,14 @@ export class PackageManagerUtils {
           prefix: '--prefix',
           noLockfile: '--no-lockfile',
         };
+      case PackageManager.Bun:
+        return {
+          saveDev: '--development',
+          install: 'add',
+          installAll: 'install',
+          prefix: '--cwd',
+          noLockfile: '',
+        };
       default:
         return {
           saveDev: '--save-dev',
@@ -218,6 +226,7 @@ export class PackageManagerUtils {
     const hasNpmLock = this.hasLockfile(PackageManager.Npm);
     const hasYarnLock = this.hasLockfile(PackageManager.Yarn);
     const hasPnpmLock = this.hasLockfile(PackageManager.Pnpm);
+    const hasBunLock = this.hasLockfile(PackageManager.Bun);
 
     // 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.
@@ -225,7 +234,7 @@ export class PackageManagerUtils {
 
     if (hasNpmLock) {
       // Has NPM lock file.
-      if (!hasYarnLock && !hasPnpmLock && this.getVersion(PackageManager.Npm)) {
+      if (!hasYarnLock && !hasPnpmLock && !hasBunLock && this.getVersion(PackageManager.Npm)) {
         // Only NPM lock file and NPM binary is available.
         return PackageManager.Npm;
       }
@@ -237,6 +246,9 @@ export class PackageManagerUtils {
       } else if (hasPnpmLock && this.getVersion(PackageManager.Pnpm)) {
         // PNPM lock file and PNPM binary is available.
         return PackageManager.Pnpm;
+      } else if (hasBunLock && this.getVersion(PackageManager.Bun)) {
+        // Bun lock file and Bun binary is available.
+        return PackageManager.Bun;
       }
     }
 
@@ -244,11 +256,14 @@ export class PackageManagerUtils {
       // Doesn't have NPM installed.
       const hasYarn = !!this.getVersion(PackageManager.Yarn);
       const hasPnpm = !!this.getVersion(PackageManager.Pnpm);
+      const hasBun = !!this.getVersion(PackageManager.Bun);
 
-      if (hasYarn && !hasPnpm) {
+      if (hasYarn && !hasPnpm && !hasBun) {
         return PackageManager.Yarn;
-      } else if (!hasYarn && hasPnpm) {
+      } else if (hasPnpm && !hasYarn && !hasBun) {
         return PackageManager.Pnpm;
+      } else if (hasBun && !hasYarn && !hasPnpm) {
+        return PackageManager.Bun;
       }
     }
 
@@ -266,6 +281,9 @@ export class PackageManagerUtils {
       case PackageManager.Pnpm:
         lockfileName = 'pnpm-lock.yaml';
         break;
+      case PackageManager.Bun:
+        lockfileName = 'bun.lockb';
+        break;
       case PackageManager.Npm:
       default:
         lockfileName = 'package-lock.json';