Upload the build output of pull requests (#122)

* Upload the build output of pull requests

* Fix incorrect commit sha

.github/workflows/tests.yml

@@ -25,10 +25,32 @@ jobs:
         run: |
           for /f "usebackq delims=" %%i in (`vswhere.exe -latest -property installationPath`) do echo %%i\VC\Auxiliary\Build>>%GITHUB_PATH%
 
+      - name: Add commit hash to version number
+        shell: powershell
+        if: github.event_name == 'pull_request'
+        env:
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          $versionFile = ".\pkg\version\version.go"
+          $rev = [UInt16]("0x" + $env:HEAD_SHA.Substring(0, 4))
+          $version = (findstr /r "Number.*=.*[0-9.]*" $versionFile | Select-Object -First 1 | ConvertFrom-StringData).Get_Item("Number")
+          $newVersion = $version.Substring(0, $version.Length - 1) + ".$rev" + '"'
+          (Get-Content $versionFile).Replace($version, $newVersion) | Set-Content $versionFile
+
       - name: Build
         shell: cmd
         run: build.bat
 
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        if: github.event_name == 'pull_request'
+        with:
+          name: build
+          path: |
+            bin/*.exe
+            bin/*.zip
+          retention-days: 5
+
   test:
     name: Go
     runs-on: windows-latest