Run the OS build matrix only for publish and release

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-# Builds and runs tests in all three supported OSes
+# Builds and runs tests on Ubuntu. The full OS matrix runs in publish and release.
 # Pushes CI feed if secrets.SLEET_CONNECTION is provided
 
 name: build
@@ -38,12 +38,9 @@ jobs:
           dotnet format style --verify-no-changes -v:diag --exclude ~/.nuget
 
   build:
-    name: build-${{ matrix.os }}
+    name: build-ubuntu-latest
     needs: dotnet-format
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest, macOS-latest]
+    runs-on: ubuntu-latest
     steps:
       - name: 🤘 checkout
         uses: actions/checkout@v4
@@ -58,22 +55,22 @@ jobs:
         run: dotnet build -m:1 -bl:build.binlog -p:VersionLabel="$GITHUB_REF.$GITHUB_RUN_NUMBER" -p:RepositoryBranch=${GITHUB_REF#refs/*/}
 
       - name: 🧪 test
-        run: dotnet test --no-build -m:1 --blame-hang --blame-hang-timeout 5m -d $GITHUB_WORKSPACE/logs/${{ matrix.os }}.txt --results-directory $GITHUB_WORKSPACE/logs
+        run: dotnet test --no-build -m:1 --blame-hang --blame-hang-timeout 5m -d $GITHUB_WORKSPACE/logs/ubuntu-latest.txt --results-directory $GITHUB_WORKSPACE/logs
 
       - name: 📦 pack
         run: dotnet pack -m:1 -bl:pack.binlog -p:VersionLabel="$GITHUB_REF.$GITHUB_RUN_NUMBER" -p:RepositoryBranch=${GITHUB_REF#refs/*/}
 
       - name: 🔼 packages
         uses: actions/upload-artifact@v4
         with:
-          name: bin-${{ matrix.os }}
+          name: bin-ubuntu-latest
           path: bin/*.nupkg
 
-      # Only push CI package to sleet feed if building on ubuntu (fastest)
+      # Push the CI package to the sleet feed when a connection is configured
       - name: 🚀 sleet
         env:
           SLEET_CONNECTION: ${{ secrets.SLEET_CONNECTION }}
-        if: matrix.os == 'ubuntu-latest' && env.SLEET_CONNECTION != ''
+        if: env.SLEET_CONNECTION != ''
         run: |
           dotnet tool update sleet -g --allow-downgrade --version $(curl -s --compressed ${{ vars.SLEET_FEED_URL }} | jq '.["sleet:version"]' -r) 
           sleet push bin --config none -f --verbose -p "SLEET_FEED_CONTAINER=nuget" -p "SLEET_FEED_CONNECTIONSTRING=${{ secrets.SLEET_CONNECTION }}" -p "SLEET_FEED_TYPE=azure" || echo "No packages found"

.github/workflows/publish.yml

@@ -1,5 +1,5 @@
-# Builds a final release version and pushes to nuget.org 
-# whenever a release is published.
+# Builds a final release version on every supported OS and pushes to nuget.org
+# whenever a release is published. Packages are pushed only after the whole matrix passes.
 # Requires: secrets.NUGET_API_KEY
 
 name: publish
@@ -11,9 +11,17 @@ env:
   DOTNET_NOLOGO: true
   Configuration: Release
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
-  publish:
-    runs-on: ubuntu-latest
+  build:
+    name: build-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
       - name: 🤘 checkout
         uses: actions/checkout@v4
@@ -37,7 +45,7 @@ jobs:
         if: ${{ always() }}
         uses: actions/upload-artifact@v4
         with:
-          name: logs
+          name: logs-${{ matrix.os }}
           path: '*.binlog'
 
       - name: ✅ validate
@@ -50,6 +58,23 @@ jobs:
             exit 1
           }
 
+      - name: 🔼 packages
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: bin-ubuntu-latest
+          path: bin/*.nupkg
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🔽 packages
+        uses: actions/download-artifact@v4
+        with:
+          name: bin-ubuntu-latest
+          path: bin
+
       - name: 🚀 nuget
         env:
           NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}

.github/workflows/release-artifacts.yml

@@ -1,14 +1,22 @@
-# Builds a release version of the project and uploads 
-# as artifacts of the release for verification/history
+# Builds a release version on every supported OS and uploads the packages
+# as artifacts of the release for verification/history. Upload waits for the whole matrix.
 
 name: release-artifacts
 on:
   release:
     types: [published]
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
-  release-artifacts:
-    runs-on: ubuntu-latest
+  build:
+    name: build-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
       - name: 🤘 checkout
         uses: actions/checkout@v4
@@ -19,9 +27,6 @@ jobs:
       - name: ⚙ dotnet
         uses: devlooped/actions-dotnet-env@v1
 
-      - name: 🏷 current
-        run: echo "CURRENT_TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-
       - name: 🙏 build
         run: dotnet build -m:1 -bl:build.binlog -p:version=${GITHUB_REF#refs/*/v} -p:RepositoryBranch=${GITHUB_REF#refs/*/}
 
@@ -35,9 +40,29 @@ jobs:
         if: ${{ always() }}
         uses: actions/upload-artifact@v4
         with:
-          name: logs
+          name: logs-${{ matrix.os }}
           path: '**/*.binlog'
 
+      - name: 🔼 packages
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: bin-ubuntu-latest
+          path: bin/*.nupkg
+
+  release-artifacts:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🏷 current
+        run: echo "CURRENT_TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+
+      - name: 🔽 packages
+        uses: actions/download-artifact@v4
+        with:
+          name: bin-ubuntu-latest
+          path: bin
+
       - name: 🔽 gh 
         run: |
           sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key C99B11DEB97541F0