ci: add release workflow + updates

Author: vba-excel

.github/workflows/release.yml

@@ -4,7 +4,7 @@ on:
   push:
     tags:
       - "v*"            # dispara quando fizer push de uma tag vX.Y.Z
-  workflow_dispatch:     # permite correr manualmente (build artefactos mas não publica release)
+  workflow_dispatch:     # permite correr manualmente
 
 concurrency:
   group: release-${{ github.ref }}
@@ -32,7 +32,7 @@ jobs:
       CGO_ENABLED: 0
       APP_NAME: sharepoint-client
       MAIN_PKG: ./cmd/sharepoint-client
-      VERSION: ${{ github.ref_name }}   # ex.: v0.3.0
+      VERSION: ${{ github.ref_name }}   # ex.: v1.0.3
 
     steps:
       - name: Checkout
@@ -84,17 +84,22 @@ jobs:
       - name: Generate checksums
         shell: bash
         run: |
+          shopt -s nullglob
           cd dist
-          ls -1 *.tar.gz *.zip 2>/dev/null | xargs -r sha256sum | tee "checksums_${VERSION}.txt"
+          files=( *.tar.gz *.zip )
+          if [ ${#files[@]} -gt 0 ]; then
+            sha256sum "${files[@]}" | tee "checksums_${VERSION}_${{ matrix.goos }}_${{ matrix.goarch }}.txt"
+          else
+            echo "no artifacts to checksum" | tee "checksums_${VERSION}_${{ matrix.goos }}_${{ matrix.goarch }}.txt"
+          fi
 
       - name: Upload build artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: dist
+          name: dist-${{ matrix.goos }}-${{ matrix.goarch }}
           path: dist/**
 
   release:
-    if: startsWith(github.ref, 'refs/tags/')
     name: Create GitHub Release
     runs-on: ubuntu-latest
     needs: build
@@ -105,8 +110,19 @@ jobs:
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
-          name: dist
+          pattern: dist-*
           path: dist
+          merge-multiple: true
+
+      - name: Combine checksums
+        shell: bash
+        run: |
+          shopt -s nullglob
+          cd dist
+          files=( *.tar.gz *.zip )
+          if [ ${#files[@]} -gt 0 ]; then
+            sha256sum "${files[@]}" | tee "checksums_${{ github.ref_name }}.txt"
+          fi
 
       - name: Publish GitHub Release
         uses: softprops/action-gh-release@v2