From 28d3f1631f0eb8bc3e6866f1739ba67e78fe4c11 Mon Sep 17 00:00:00 2001
From: Momo Kornher <kornherm@amazon.co.uk>
Date: Sun, 28 Apr 2024 20:37:06 +0100
Subject: [PATCH] run less builds

---
 .github/workflows/build.yml |  4 +++-
 projenrc/rosetta.ts         | 16 ++++++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5a747e67..c2c0dd38 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -106,6 +106,9 @@ jobs:
         run: test $(npx jsii-rosetta --version) = "${{ matrix.rosetta }}"
     strategy:
       matrix:
+        include:
+          - rosetta: 5.4.0
+            os: windows-latest
         rosetta:
           - 1.85.0
           - 5.0.14
@@ -115,4 +118,3 @@ jobs:
           - 5.4.0
         os:
           - ubuntu-latest
-          - windows-latest
diff --git a/projenrc/rosetta.ts b/projenrc/rosetta.ts
index 9d3e88cb..12fbfbcf 100644
--- a/projenrc/rosetta.ts
+++ b/projenrc/rosetta.ts
@@ -25,6 +25,9 @@ export class RosettaPeerDependency extends Component {
     super(project);
 
     const constraint = this.calculateVersionConstraint(options.supportedVersions);
+    const minVersions = this.calculateMinimalVersions(options.supportedVersions);
+    const latestVersion = this.calculateLatestVersion(options.supportedVersions);
+
     project.addDevDeps(constraint);
     project.addPeerDeps(constraint);
 
@@ -38,9 +41,13 @@ export class RosettaPeerDependency extends Component {
       strategy: {
         matrix: {
           domain: {
-            rosetta: this.calculateMinimalVersions(options.supportedVersions),
-            os: ['ubuntu-latest', 'windows-latest'],
+            rosetta: minVersions,
+            os: ['ubuntu-latest'],
           },
+          include: [{
+            rosetta: latestVersion,
+            os: 'windows-latest',
+          }],
         },
       },
       steps: [{
@@ -96,4 +103,9 @@ export class RosettaPeerDependency extends Component {
 
     return discoveredVersions;
   }
+
+  private calculateLatestVersion(versions: RosettaPeerDependencyOptions['supportedVersions']): string {
+    const discoveredVersions = this.calculateMinimalVersions(versions);
+    return discoveredVersions.sort().pop() ?? 'latest';
+  }
 }