.github: Run release style builds on all PRs

Adjust the release workflow to move the conditional check on the tag
creation into the steps that create the release/upload the assets.

This allows us to ensure we're always in a releaseable state.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

.github/workflows/release.yaml

@@ -1,52 +1,51 @@
 name: Cloud Hypervisor Release
-on: [create]
+on: [pull_request, create]
 
 jobs:
   release:
-    if: github.event_name == 'create' && github.event.ref_type == 'tag'
     name: Release
     runs-on: ubuntu-latest
     steps:
       - name: Code checkout
         uses: actions/checkout@v2
       - name: Install musl-gcc
-        run: sudo apt install -y musl-tools      
+        run: sudo apt install -y musl-tools
       - name: Create release directory
         run: rsync -rv --exclude=.git . ../cloud-hypervisor-${{ github.event.ref }}
       - name: Install Rust toolchain (x86_64-unknown-linux-gnu)
         uses: actions-rs/toolchain@v1
         with:
-            toolchain: "1.62"
-            target: x86_64-unknown-linux-gnu
+          toolchain: "1.62"
+          target: x86_64-unknown-linux-gnu
       - name: Install Rust toolchain (x86_64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-            toolchain: "1.62"
-            target: x86_64-unknown-linux-musl
+          toolchain: "1.62"
+          target: x86_64-unknown-linux-musl
       - name: Build
         uses: actions-rs/cargo@v1
         with:
-            toolchain: "1.62"
-            command: build
-            args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-gnu
+          toolchain: "1.62"
+          command: build
+          args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-gnu
       - name: Static Build
         uses: actions-rs/cargo@v1
         with:
-            toolchain: "1.62"
-            command: build
-            args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-musl
+          toolchain: "1.62"
+          command: build
+          args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-musl
       - name: Install Rust toolchain (aarch64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-            toolchain: "1.62"
-            target: aarch64-unknown-linux-musl
-            override: true
+          toolchain: "1.62"
+          target: aarch64-unknown-linux-musl
+          override: true
       - name: Static Build (AArch64)
         uses: actions-rs/cargo@v1
         with:
-            use-cross: true
-            command: build
-            args: --all --release --target=aarch64-unknown-linux-musl
+          use-cross: true
+          command: build
+          args: --all --release --target=aarch64-unknown-linux-musl
       - name: Vendor
         working-directory: ../cloud-hypervisor-${{ github.event.ref }}
         run: |
@@ -55,6 +54,7 @@ jobs:
           mkdir .cargo
           cargo vendor > .cargo/config.toml
       - name: Create Release
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: create_release
         uses: actions/create-release@v1
         env:
@@ -66,8 +66,9 @@ jobs:
           prerelease: true
       - name: Create vendored source archive
         working-directory: ../
-        run:  tar cJf cloud-hypervisor-${{ github.event.ref }}.tar.xz cloud-hypervisor-${{ github.event.ref }}
+        run: tar cJf cloud-hypervisor-${{ github.event.ref }}.tar.xz cloud-hypervisor-${{ github.event.ref }}
       - name: Upload cloud-hypervisor vendored source archive
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-cloud-hypervisor-vendored-sources
         uses: actions/upload-release-asset@v1
         env:
@@ -78,6 +79,7 @@ jobs:
           asset_name: cloud-hypervisor-${{ github.event.ref }}.tar.xz
           asset_content_type: application/x-xz
       - name: Upload cloud-hypervisor
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-cloud-hypervisor
         uses: actions/upload-release-asset@v1
         env:
@@ -88,6 +90,7 @@ jobs:
           asset_name: cloud-hypervisor
           asset_content_type: application/octet-stream
       - name: Upload static cloud-hypervisor
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-static-cloud-hypervisor
         uses: actions/upload-release-asset@v1
         env:
@@ -98,6 +101,7 @@ jobs:
           asset_name: cloud-hypervisor-static
           asset_content_type: application/octet-stream
       - name: Upload ch-remote
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-ch-remote
         uses: actions/upload-release-asset@v1
         env:
@@ -108,6 +112,7 @@ jobs:
           asset_name: ch-remote
           asset_content_type: application/octet-stream
       - name: Upload static-ch-remote
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-static-ch-remote
         uses: actions/upload-release-asset@v1
         env:
@@ -118,6 +123,7 @@ jobs:
           asset_name: ch-remote-static
           asset_content_type: application/octet-stream
       - name: Upload static AArch64 cloud-hypervisor
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-static-aarch64-cloud-hypervisor
         uses: actions/upload-release-asset@v1
         env:
@@ -128,6 +134,7 @@ jobs:
           asset_name: cloud-hypervisor-static-aarch64
           asset_content_type: application/octet-stream
       - name: Upload static AArch64 ch-remote
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
         id: upload-release-static-aarch64-ch-remote
         uses: actions/upload-release-asset@v1
         env: