From 8678f034511e97805ff77fdfee83c9b279c699f3 Mon Sep 17 00:00:00 2001
From: Sarangan Rajamanickam <sarajama@microsoft.com>
Date: Fri, 28 Jun 2024 19:02:03 +0000
Subject: [PATCH] Move @typespec/compiler from dependencies to peerDependencies

---
 packages/compiler/src/init/scaffold.ts            | 4 +++-
 packages/compiler/test/init/init-template.test.ts | 5 ++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/compiler/src/init/scaffold.ts b/packages/compiler/src/init/scaffold.ts
index f89e43e5ca..6ed899aea7 100644
--- a/packages/compiler/src/init/scaffold.ts
+++ b/packages/compiler/src/init/scaffold.ts
@@ -105,9 +105,10 @@ async function writePackageJson(host: CompilerHost, config: ScaffoldingConfig) {
     return;
   }
   const dependencies: Record<string, string> = {};
+  const peerDependencies: Record<string, string> = {};
 
   if (!config.template.skipCompilerPackage) {
-    dependencies["@typespec/compiler"] = "latest";
+    peerDependencies["@typespec/compiler"] = "latest";
   }
 
   for (const library of config.libraries) {
@@ -119,6 +120,7 @@ async function writePackageJson(host: CompilerHost, config: ScaffoldingConfig) {
     version: "0.1.0",
     type: "module",
     dependencies,
+    peerDependencies,
     private: true,
   };
 
diff --git a/packages/compiler/test/init/init-template.test.ts b/packages/compiler/test/init/init-template.test.ts
index d76f430223..d619ae8c20 100644
--- a/packages/compiler/test/init/init-template.test.ts
+++ b/packages/compiler/test/init/init-template.test.ts
@@ -45,11 +45,14 @@ describe("compiler: init: templates", () => {
       });
 
       deepStrictEqual(JSON.parse(getOutputFile("package.json")!).dependencies, {
-        "@typespec/compiler": "latest",
         foo: "~1.2.3",
         bar: "latest",
       });
 
+      deepStrictEqual(JSON.parse(getOutputFile("package.json")!).peerDependencies, {
+        "@typespec/compiler": "latest",
+      });
+
       strictEqual(getOutputFile("main.tsp")!, 'import "foo";\nimport "bar";\n');
     });
   });