Azure · m-redding · Nov 7, 2025 · Nov 7, 2025 · Nov 7, 2025 · Nov 7, 2025
@@ -110,7 +110,8 @@
     <GenerateAPIListing Condition="'$(GenerateAPIListing)' == '' AND '$(IsShippingClientLibrary)' == 'true'">true</GenerateAPIListing>
     <EnableSourceLink Condition="'$(EnableSourceLink)' == ''">true</EnableSourceLink>
     <DefineConstants Condition="'$(BuildSnippets)' == 'true'">$(DefineConstants);SNIPPET</DefineConstants>
-    <AotCompatOptOut>false</AotCompatOptOut>
+    <AotCompatOptOut Condition="'$(IsShippingLibrary)' == 'true'">false</AotCompatOptOut>
+    <AotAnalyzersOptOut Condition="'$(IsShippingLibrary)' == 'true'">false</AotAnalyzersOptOut>
     <ApiCompatBaselineTargetFramework Condition="'$(TargetFramework)' == '$(LtsTargetFramework)'">netstandard2.0</ApiCompatBaselineTargetFramework>
   </PropertyGroup>
 

@@ -22,7 +22,7 @@
     <PackageRootDirectory>$([MSBuild]::NormalizeDirectory($(MSBuildProjectDirectory)/../).TrimEnd("/").TrimEnd("\\"))</PackageRootDirectory>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(IsShippingLibrary)' == 'true' and '$(AotCompatOptOut)' == 'false'">
+  <PropertyGroup Condition="'$(IsShippingLibrary)' == 'true' and '$(AotCompatOptOut)' == 'false' and '$(AotAnalyzersOptOut)' == 'false'">
     <IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>
   </PropertyGroup>
 
@@ -387,7 +387,7 @@
       <ServiceDirectory><![CDATA[$([System.Text.RegularExpressions.Regex]::Replace($(PackageRootDirectory), '^.*[\\/]+sdk[\\/]+([^\\/]+).*$', '$1'))]]></ServiceDirectory>
 
       <!-- Format package info line for output -->
-      <PackageInfoText Condition="'$(IsShippingLibrary)' == 'true'">'$(PackageRootDirectory)' '$(ServiceDirectory)' '$(PackageId)' '$(VersionForProperties)' '$(PackageSdkType)' '$(PackageIsNewSdk)' '$(BaseOutputPath)' '$(AotCompatOptOut)'</PackageInfoText>
+      <PackageInfoText Condition="'$(IsShippingLibrary)' == 'true'">'$(PackageRootDirectory)' '$(ServiceDirectory)' '$(PackageId)' '$(VersionForProperties)' '$(PackageSdkType)' '$(PackageIsNewSdk)' '$(BaseOutputPath)' </PackageInfoText>
     </PropertyGroup>
 
     <ItemGroup Condition="'$(IsShippingLibrary)' == 'true'">

@@ -35,7 +35,6 @@ extends:
       ServiceDirectory: template
     ${{ else }}:
       ServiceDirectory: ${{ parameters.Service }}
-    CheckAOTCompat: true
     BuildSnippets: true
     ExcludePaths:
       - eng/packages/http-client-csharp/
@@ -11,12 +11,6 @@ parameters:
   - name: SDKType
     type: string
     default: all
-  - name: CheckAOTCompat
-    type: boolean
-    default: false
-  - name: AOTTestInputs
-    type: object
-    default: []
   - name: BuildSnippets
     type: boolean
     default: true
@@ -66,8 +60,6 @@ jobs:
           TestPipeline: ${{ parameters.TestPipeline }}
           ServiceDirectory: ${{ parameters.ServiceDirectory }}
           SDKType: ${{ parameters.SDKType }}
-          CheckAOTCompat: ${{ parameters.CheckAOTCompat }}
-          AOTTestInputs: ${{ parameters.AOTTestInputs }}
 
   - job:
     displayName: "Analyze"

@@ -17,12 +17,6 @@ parameters:
   - name: BuildSnippets
     type: boolean
     default: true
-  - name: CheckAOTCompat
-    type: boolean
-    default: false
-  - name: AOTTestInputs
-    type: object
-    default: []
   - name: TestSetupSteps
     type: stepList
     default: []
@@ -75,8 +69,6 @@ jobs:
           TestPipeline: ${{ parameters.TestPipeline }}
           ServiceDirectory: ${{ parameters.ServiceDirectory }}
           SDKType: ${{ parameters.SDKType }}
-          CheckAOTCompat: ${{ parameters.CheckAOTCompat }}
-          AOTTestInputs: ${{ parameters.AOTTestInputs }}
           BuildSnippets: ${{ parameters.BuildSnippets }}
         PreGenerationSteps:
           - template: /eng/pipelines/templates/steps/pr-matrix-presteps.yml
@@ -116,8 +108,6 @@ jobs:
             TestPipeline: ${{ parameters.TestPipeline }}
             ServiceDirectory: ${{ parameters.ServiceDirectory }}
             SDKType: ${{ parameters.SDKType }}
-            CheckAOTCompat: ${{ parameters.CheckAOTCompat }}
-            AOTTestInputs: ${{ parameters.AOTTestInputs }}
 
     - job: "Analyze"
       timeoutInMinutes: ${{ parameters.TestTimeoutInMinutes }}

@@ -17,12 +17,6 @@ parameters:
   - name: BuildSnippets
     type: boolean
     default: true
-  - name: CheckAOTCompat
-    type: boolean
-    default: false
-  - name: AOTTestInputs
-    type: object
-    default: []
   - name: TestSetupSteps
     type: stepList
     default: []
@@ -84,8 +78,6 @@ extends:
               ArtifactName: packages
               LimitForPullRequest: ${{ parameters.LimitForPullRequest }}
               BuildSnippets: ${{ parameters.BuildSnippets }}
-              CheckAOTCompat: ${{ parameters.CheckAOTCompat }}
-              AOTTestInputs: ${{ parameters.AOTTestInputs }}
               TestSetupSteps: ${{ parameters.TestSetupSteps }}
               TestTimeoutInMinutes: ${{ parameters.TestTimeoutInMinutes }}
               MatrixConfigs:

@@ -1,7 +1,7 @@
 parameters:
   ServiceDirectory: ''
+  Artifacts: ''
   PackageInfoFolder: ''
-  AOTTestInputs: []
 
 steps:
 
@@ -16,14 +16,14 @@ steps:
         -ProjectNames "$(ProjectNames)"
       workingDirectory: $(Build.SourcesDirectory)/eng/scripts/compatibility
 - ${{ else }}:
-  - ${{ each aotTestInput in parameters.AOTTestInputs }}:
+  - ${{ each artifact in parameters.Artifacts }}:
     - task: Powershell@2
-      displayName: Check for AOT compatibility regressions in ${{ aotTestInput.ArtifactName }}
+      displayName: Check for AOT compatibility regressions in ${{ artifact.name }}
       inputs:
         targetType: filepath
         filePath: $(Build.SourcesDirectory)/eng/scripts/compatibility/Check-AOT-Compatibility.ps1
         arguments: >-
           -ServiceDirectory ${{ parameters.ServiceDirectory }}
-          -PackageName ${{ aotTestInput.ArtifactName }}
-          -ExpectedWarningsFilePath ${{ aotTestInput.ExpectedWarningsFilePath }}
+          -PackageName ${{ artifact.name }}
+          -DirectoryName ${{ artifact.directoryName }}
         workingDirectory: $(Build.SourcesDirectory)/eng/scripts/compatibility
@@ -11,12 +11,6 @@ parameters:
   - name: SDKType
     type: string
     default: all
-  - name: CheckAOTCompat
-    type: boolean
-    default: false
-  - name: AOTTestInputs
-    type: object
-    default: []
   - name: BuildSnippets
     type: boolean
     default: true
@@ -153,12 +147,11 @@ steps:
       LibType: 'client'
       PackageInfoFolder: '$(Build.ArtifactStagingDirectory)/PackageInfo'
 
-  - ${{ if eq(parameters.CheckAOTCompat, 'true') }}:
-    - template: /eng/pipelines/templates/steps/aot-compatibility.yml
-      parameters:
-        ServiceDirectory: ${{ parameters.ServiceDirectory }}
-        AOTTestInputs: ${{ parameters.AOTTestInputs }}
-        PackageInfoFolder: '$(Build.ArtifactStagingDirectory)/PackageInfo'
+  - template: /eng/pipelines/templates/steps/aot-compatibility.yml
+    parameters:
+      ServiceDirectory: ${{ parameters.ServiceDirectory }}
+      Artifacts: ${{ parameters.Artifacts }}
+      PackageInfoFolder: '$(Build.ArtifactStagingDirectory)/PackageInfo'
 
   - task: ms.vss-governance-buildtask.governance-build-task-component-detection.ComponentGovernanceComponentDetection@0
     displayName: "Component Detection"

@@ -51,7 +51,7 @@ function Get-AllPackageInfoFromRepo($serviceDirectory)
       continue
     }
 
-    $pkgPath, $serviceDirectory, $pkgName, $pkgVersion, $sdkType, $isNewSdk, $dllFolder, $AotCompatOptOut = $projectOutput.Split("' '", [System.StringSplitOptions]::RemoveEmptyEntries).Trim("' ")
+    $pkgPath, $serviceDirectory, $pkgName, $pkgVersion, $sdkType, $isNewSdk, $dllFolder = $projectOutput.Split("' '", [System.StringSplitOptions]::RemoveEmptyEntries).Trim("' ")
     if(!(Test-Path $pkgPath)) {
       Write-Host "Parsed package path `$pkgPath` does not exist so skipping the package line '$projectOutput'."
       continue
@@ -67,49 +67,6 @@ function Get-AllPackageInfoFromRepo($serviceDirectory)
     $ciProps = $pkgProp.GetCIYmlForArtifact()
 
     if ($ciProps) {
-      # First, check if this artifact has baselined warnings in AOTTestInputs
-      $aotArtifacts = GetValueSafelyFrom-Yaml $ciProps.ParsedYml @("extends", "parameters", "AOTTestInputs")
-      $hasBaselinedWarnings = $false
-      if ($aotArtifacts) {
-        $matchingAotArtifact = $aotArtifacts | Where-Object { $_.ArtifactName -eq $pkgProp.ArtifactName }
-        if ($matchingAotArtifact -and $matchingAotArtifact.ExpectedWarningsFilepath) {
-          $hasBaselinedWarnings = $true
-        }
-      }
-
-      # CheckAOTCompat logic: if set in CI.yml, respect that value;
-      # if artifact has baselined warnings, run AOT checks;
-      # otherwise use AotCompatOptOut from project settings
-      $shouldAot = GetValueSafelyFrom-Yaml $ciProps.ParsedYml @("extends", "parameters", "CheckAOTCompat")
-      if ($null -ne $shouldAot) {
-        $parsedBool = $null
-        if ([bool]::TryParse($shouldAot, [ref]$parsedBool)) {
-          $pkgProp.CIParameters["CheckAOTCompat"] = $parsedBool
-        }
-      }
-      elseif ($hasBaselinedWarnings) {
-        # If artifact has baselined warnings, enable AOT checks
-        $pkgProp.CIParameters["CheckAOTCompat"] = $true
-      }
-      else {
-        # If not explicitly opted out of AOT compat, run the check
-        $pkgProp.CIParameters["CheckAOTCompat"] = $AotCompatOptOut -ne 'true'
-      }
-
-      # If CheckAOTCompat is true, look for additional AOTTestInputs parameter
-      if ($pkgProp.CIParameters["CheckAOTCompat"]) {
-        if ($aotArtifacts) {
-          $aotArtifacts = $aotArtifacts | Where-Object { $_.ArtifactName -eq $pkgProp.ArtifactName }
-          $pkgProp.CIParameters["AOTTestInputs"] = $aotArtifacts
-        }
-        else {
-          $pkgProp.CIParameters["AOTTestInputs"] = @()
-        }
-      }
-      else {
-        $pkgProp.CIParameters["AOTTestInputs"] = @()
-      }
-
       # BuildSnippets is opt _out_, so we should default to true if not specified
       $shouldSnippet = GetValueSafelyFrom-Yaml $ciProps.ParsedYml @("extends", "parameters", "BuildSnippets")
       if ($null -ne $shouldSnippet) {
@@ -123,11 +80,8 @@ function Get-AllPackageInfoFromRepo($serviceDirectory)
       }
     }
     # if the package isn't associated with a CI.yml, we still want to set the defaults values for these parameters
-    # so that when we are checking the package set for which need to "Build Snippets" or "Check AOT" we won't crash due to the property being null
+    # so that when we are checking the package set for which need to "Build Snippets"
     else {
-      # No CI.yml found, use IsAotCompatible from csproj for CheckAOTCompat
-      $pkgProp.CIParameters["CheckAOTCompat"] = $AotCompatOptOut -eq 'false'
-      $pkgProp.CIParameters["AOTTestInputs"] = @()
       $pkgProp.CIParameters["BuildSnippets"] = $true
     }
 

@@ -35,23 +35,17 @@ $filteredPackages = Get-ChildItem -Path $PackageInfoFolder -Filter "*.json" -Fil
 
 $failedAotChecks = $false
 foreach ($package in $filteredPackages) {
-    if ($package.CIParameters.CheckAOTCompat) {
-        Write-Host "Running Check-AOT-Compatibility.ps1 for Package: $($package.ArtifactName) Service $($package.ServiceDirectory)"
-
-        # Check if AOTTestInputs exists and has ExpectedWarningsFilePath, otherwise use "None"
-        $expectedWarningsFilePath = "None"
-        if ($package.CIParameters.AOTTestInputs -and $package.CIParameters.AOTTestInputs.ExpectedWarningsFilePath) {
-            $expectedWarningsFilePath = $package.CIParameters.AOTTestInputs.ExpectedWarningsFilePath
-        }
-
-        & $PSScriptRoot/Check-AOT-Compatibility.ps1 `
-            -PackageName $package.ArtifactName `
-            -ServiceDirectory $package.ServiceDirectory `
-            -ExpectedWarningsFilePath $expectedWarningsFilePath
-
-        if ($LASTEXITCODE -ne 0) {
-            $failedAotChecks = $true
-        }
+    Write-Host "Running Check-AOT-Compatibility.ps1 for Package: $($package.ArtifactName) Service $($package.ServiceDirectory)"
+
+    $scriptPath = Join-Path $PSScriptRoot "Check-AOT-Compatibility.ps1"
+    Write-Host "Calling: $scriptPath -ServiceDirectory $($package.ServiceDirectory) -PackageName $($package.ArtifactName)"
+
+    & $scriptPath `
+        -ServiceDirectory $package.ServiceDirectory `
+        -PackageName $package.ArtifactName
+
+    if ($LASTEXITCODE -ne 0) {
+        $failedAotChecks = $true
     }
 }
 

@@ -1,20 +1,32 @@
 param(
-  [string]$ServiceDirectory,
-  [string]$PackageName,
-  [string]$ExpectedWarningsFilePath,
-  [string]$DirectoryName = "")
+  # Path to the csproj file for the package relative to the repository root
+  [string]$PackagePath)
+
+### Check if AOT compatibility is opted out ###
+
+$RepoRoot = Resolve-Path (Join-Path $PSScriptRoot .. .. ..)
+$ProjectPath = Join-Path $RepoRoot $PackagePath
+$PackageName = [System.IO.Path]::GetFileNameWithoutExtension($PackagePath)
+
+# Get the property directly from the project file - replicating what the target does
+$output = dotnet msbuild -getProperty:AotCompatOptOut "$ProjectPath"
+
+$aotOptOut = $output.Trim() -eq "true"
+
+if ($aotOptOut) {
+    Write-Host "AOT compatibility is opted out for $PackageName. Skipping AOT compatibility check."
+        exit 0
+}
 
 ### Creating a test app ###
 
 Write-Host "Creating a test app to publish."
 
-$expectedWarningsFullPath = Join-Path -Path "..\..\..\..\sdk\$ServiceDirectory\" -ChildPath $ExpectedWarningsFilePath
-
 # Set the project reference path based on whether DirectoryName was provided
 if ([string]::IsNullOrEmpty($DirectoryName)) {
-    $projectRefFullPath = "..\..\..\..\sdk\$ServiceDirectory\$PackageName\src\$PackageName.csproj"
+    $projectRefFullPath = "..\..\..\..\$PackagePath"
 } else {
-    $projectRefFullPath = "..\..\..\..\sdk\$ServiceDirectory\$DirectoryName\src\$PackageName.csproj"
+    $projectRefFullPath = "..\..\..\..\$PackagePath"
 }
 
 $folderPath = "\TempAotCompatFiles"
@@ -97,25 +109,24 @@ foreach ($line in $($publishOutput -split "`r`n"))
     }
 }
 
-Write-Host "There were $actualWarningCount warnings reported."
+### Compare to baselined warnings ###
 
-### Reading the contents of the text file path ###
+# Baselining warnings is only allowed for two of the Azure.Core.* packages, hard code the file path to the expected
+# warnings as a backdoor for those packages.
 
-Write-Host "Reading the list of patterns that represent the list of expected warnings."
+$expectedWarningsPath = "..\..\..\..\sdk\core\$PackageName\tests\compatibility\ExpectedAotWarnings.txt"
 
-if (Test-Path $expectedWarningsFullPath -PathType Leaf) {
+if (Test-Path $expectedWarningsPath -PathType Leaf) {
     # Read the contents of the file and store each line in an array
-    $expectedWarnings = Get-Content -Path $expectedWarningsFullPath
+    $expectedWarnings = Get-Content -Path $expectedWarningsPath
 } else {
     # If no correct expected warnings were provided, check that there are no warnings reported.
 
-    Write-Host "The specified file does not exist. Assuming no warnings are expected."
-
     $warnings = $publishOutput -split "`n" | select-string -pattern 'IL\d+' | select-string -pattern '##' -notmatch
     $numWarnings = $warnings.Count
 
     if ($numWarnings -gt 0) {
-      Write-Host "Found $numWarnings additional warnings that were not expected:" -ForegroundColor Red
+      Write-Host "Found $numWarnings AOT warnings:" -ForegroundColor Red
       foreach ($warning in $warnings) {
         Write-Host $warning -ForegroundColor Yellow
       }
@@ -127,15 +138,16 @@ if (Test-Path $expectedWarningsFullPath -PathType Leaf) {
     Remove-Item -Path "./$folderPath" -Recurse -Force
 
     Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotCompatibility.md"
+    Write-Host "To see this output locally, run 'eng/scripts/compatibility/Check-AOT-Compatibility.ps1 $PackagePath'"
 
     exit $warnings.Count
 }
 
-### Comparing expected warnings to the publish output ###
+Write-Host "There were $actualWarningCount warnings reported from the publish."
 
 $numExpectedWarnings = $expectedWarnings.Count
 
-Write-Host "Checking against the list of expected warnings. There are $numExpectedWarnings warnings expected."
+Write-Host "There are $numExpectedWarnings warnings expected."
 
 $warnings = $publishOutput -split "`n" | select-string -pattern 'IL\d+' | select-string -pattern '##' -notmatch | select-string -pattern $expectedWarnings -notmatch
 $numWarnings = $warnings.Count
@@ -156,8 +168,10 @@ Remove-Item -Path "./$folderPath" -Recurse -Force
 if ($numExpectedWarnings -ne $actualWarningCount) {
   Write-Host "The number of expected warnings ($numExpectedWarnings) was different than the actual warning count ($actualWarningCount)."
   Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotCompatibility.md"
+  Write-Host "To run locally, run eng/scripts/compatibility/Check-AOT-Compatibility.ps1 $PackagePath"
   exit 2
 }
-
+  
 Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotCompatibility.md"
+Write-Host "To see this output locally, run 'eng/scripts/compatibility/Check-AOT-Compatibility.ps1 $PackagePath'"
 exit $warnings.Count
@@ -11,7 +11,7 @@
     <TargetFrameworks>$(RequiredTargetFrameworks)</TargetFrameworks>
     <EnableClientSdkAnalyzers>true</EnableClientSdkAnalyzers>
     <EnableBannedApiAnalyzers>false</EnableBannedApiAnalyzers>
-    <AotCompatOptOut>true</AotCompatOptOut>
+    <AotAnalyzersOptOut>true</AotAnalyzersOptOut>
   </PropertyGroup>
 
   <ItemGroup>