Add files. disable artifact / test results publications to avoid warnings on CI

- artifacts/log is often empty when binary logs are disabled
- no tests create *.trx files
  - don't have Java test results either
- only test jobs need test results published

Author: dougbu

.azure/pipelines/jobs/default-build.yml

@@ -80,7 +80,7 @@ jobs:
       enableMicrobuild: true
       enablePublishBuildAssets: true
       enablePublishUsingPipelines: ${{ variables._PublishUsingPipelines }}
-    enablePublishTestResults: true # publish test results to AzDO (populates AzDO Tests tab)
+    enablePublishTestResults: ${{ eq(parameters.isTestingJob, 'true') }} # publish test results to AzDO (populates AzDO Tests tab)
     enableTelemetry: true
     helixRepo: dotnet/aspnetcore
     helixType: build.product/
@@ -247,18 +247,7 @@ jobs:
           artifactType: Container
           parallel: true
 
-    - ${{ if eq(parameters.isTestingJob, true) }}:
-      - task: PublishTestResults@2
-        displayName: Publish VSTest test results
-        condition: always()
-        continueOnError: true
-        inputs:
-          testRunTitle: $(AgentOsName)-$(BuildConfiguration)
-          testRunner: vstest
-          testResultsFiles: '**/artifacts/**/*.trx'
-          mergeTestResults: true
-          buildConfiguration: $(BuildConfiguration)
-          buildPlatform: $(AgentOsName)
+    - ${{ if and(eq(parameters.isTestingJob, true), ne(parameters.jobName, 'Windows_Templates_Test')) }}:
       - task: PublishTestResults@2
         displayName: Publish js test results
         condition: always()
@@ -267,12 +256,3 @@ jobs:
           testResultsFiles: '**/artifacts/log/**/*.junit.xml'
           buildConfiguration: $(BuildConfiguration)
           buildPlatform: $(AgentOsName)
-      - task: PublishTestResults@2
-        displayName: Publish Java test results
-        condition: always()
-        inputs:
-          testRunner: junit
-          testResultsFiles: '**/TEST-junit-jupiter.xml'
-          buildConfiguration: $(BuildConfiguration)
-          buildPlatform: $(AgentOsName)
-          mergeTestResults: true

build.ps1

@@ -369,6 +369,9 @@ if ($BinaryLog) {
     if (-not $bl) {
         $MSBuildArguments += "/bl:" + (Join-Path $LogDir "Build.binlog")
     }
+} elseif ($CI) {
+    # Ensure the artifacts/log directory isn't empty to avoid warnings.
+    New-Item (Join-Path $LogDir "empty.log") -ItemType File -ErrorAction SilentlyContinue >$null
 }
 
 # Capture MSBuild crash logs

build.sh

@@ -338,6 +338,9 @@ if [[ "$binary_log" == true ]]; then
     if [[ "$found" == false ]]; then
         msbuild_args[${#msbuild_args[*]}]="/bl:$log_dir/Build.binlog"
     fi
+elif [[ "$ci" == true ]]; then
+    # Ensure the artifacts/log directory isn't empty to avoid warnings.
+    touch "$log_dir/empty.log"
 fi
 
 # Capture MSBuild crash logs