From d5f254f8e462c403cdf4a556bf7317a04b4fb1e8 Mon Sep 17 00:00:00 2001
From: blam <ben@blam.sh>
Date: Tue, 8 Oct 2024 11:27:54 +0200
Subject: [PATCH 1/2] chore: check that it's not already a bound version

Signed-off-by: blam <ben@blam.sh>
---
 packages/yarn-plugin/src/resolver/BackstageResolver.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/yarn-plugin/src/resolver/BackstageResolver.ts b/packages/yarn-plugin/src/resolver/BackstageResolver.ts
index 82e6c013a3..01ff66f439 100644
--- a/packages/yarn-plugin/src/resolver/BackstageResolver.ts
+++ b/packages/yarn-plugin/src/resolver/BackstageResolver.ts
@@ -44,7 +44,10 @@ export class BackstageResolver implements Resolver {
    * the version in backstage.json changes.
    */
   bindDescriptor(descriptor: Descriptor): Descriptor {
-    if (descriptor.range !== 'backstage:^') {
+    if (
+      descriptor.range !== 'backstage:^' &&
+      !descriptor.range.startsWith('backstage:')
+    ) {
       throw new Error(
         `Unsupported version range "${
           descriptor.range

From aba538db72473621bbdd216089bf43a37112a817 Mon Sep 17 00:00:00 2001
From: blam <ben@blam.sh>
Date: Tue, 8 Oct 2024 11:57:32 +0200
Subject: [PATCH 2/2] chore: support fixed versions of backstage version in
 resolver

Signed-off-by: blam <ben@blam.sh>
---
 .../src/resolver/BackstageResolver.test.ts    | 11 ++++++++---
 .../src/resolver/BackstageResolver.ts         | 19 +++++--------------
 2 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/packages/yarn-plugin/src/resolver/BackstageResolver.test.ts b/packages/yarn-plugin/src/resolver/BackstageResolver.test.ts
index 9ac3401041..d7d9126923 100644
--- a/packages/yarn-plugin/src/resolver/BackstageResolver.test.ts
+++ b/packages/yarn-plugin/src/resolver/BackstageResolver.test.ts
@@ -114,15 +114,20 @@ describe('BackstageResolver', () => {
     });
 
     describe('with range "backstage:1.23.45"', () => {
-      it('throws an error', () => {
-        expect(() =>
+      it('returns the correct descriptor', () => {
+        expect(
           backstageResolver.bindDescriptor(
             structUtils.makeDescriptor(
               structUtils.makeIdent('backstage', 'core'),
               'backstage:1.23.45',
             ),
           ),
-        ).toThrow(/unsupported version range/i);
+        ).toEqual(
+          structUtils.makeDescriptor(
+            structUtils.makeIdent('backstage', 'core'),
+            'backstage:1.23.45',
+          ),
+        );
       });
     });
   });
diff --git a/packages/yarn-plugin/src/resolver/BackstageResolver.ts b/packages/yarn-plugin/src/resolver/BackstageResolver.ts
index 01ff66f439..7e794f5693 100644
--- a/packages/yarn-plugin/src/resolver/BackstageResolver.ts
+++ b/packages/yarn-plugin/src/resolver/BackstageResolver.ts
@@ -44,23 +44,14 @@ export class BackstageResolver implements Resolver {
    * the version in backstage.json changes.
    */
   bindDescriptor(descriptor: Descriptor): Descriptor {
-    if (
-      descriptor.range !== 'backstage:^' &&
-      !descriptor.range.startsWith('backstage:')
-    ) {
-      throw new Error(
-        `Unsupported version range "${
-          descriptor.range
-        }" for package ${structUtils.stringifyIdent(
-          descriptor,
-        )}. The backstage protocol only supports the range "backstage:^".`,
+    if (descriptor.range === 'backstage:^') {
+      return structUtils.makeDescriptor(
+        descriptor,
+        `${PROTOCOL}${getCurrentBackstageVersion()}`,
       );
     }
 
-    return structUtils.makeDescriptor(
-      descriptor,
-      `${PROTOCOL}${getCurrentBackstageVersion()}`,
-    );
+    return descriptor;
   }
 
   /**