Add pipeline-owners-extraction pipeline (#3784)

* Add pipeline-owners-extraction pipeline

eng/pipelines/pipeline-owners-extraction.yml

@@ -0,0 +1,42 @@
+# Configure notifications in Azure DevOps
+trigger: none
+
+pr: none
+
+stages:
+- stage: Run
+
+  variables:
+  - template: ./templates/variables/globals.yml
+
+  jobs:
+  - job: Run
+    timeoutInMinutes: 120
+    pool:
+      name: azsdk-pool-mms-ubuntu-2004-general
+      vmImage: MMSUbuntu20.04
+
+    variables:
+      Organization: azure-sdk
+      Project: internal
+      DotNetDevOpsFeed: "https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-net/nuget/v3/index.json"
+      OutputPath: '$(Agent.BuildDirectory)/pipelineOwners.json'
+    steps:
+      - task: DotNetCoreCLI@2
+        displayName: 'Install Pipeline Owners Extractor'
+        inputs:
+          command: custom
+          custom: 'tool'
+          arguments: 'install --global --add-source "$(DotNetDevOpsFeed)" --version "$(PipelineOwnersExtractorVersion)" "Azure.Sdk.Tools.PipelineOwnersExtractor"'
+          workingDirectory: '$(Agent.BuildDirectory)'
+      - task: AzureCLI@2
+        displayName: Run Pipeline Owners Extractor
+        inputs:
+          azureSubscription: 'Azure SDK Engineering System'
+          scriptType: pscore
+          scriptLocation: inlineScript
+          inlineScript: pipeline-owners-extractor --output "$(OutputPath)"
+      - publish: $(OutputPath)
+        displayName: Publish pipelineOwners artifact
+        artifact: pipelineOwners
+        condition: succeededOrFailed()

eng/pipelines/templates/variables/globals.yml

@@ -4,3 +4,4 @@ variables:
   DotNetCoreVersion: '3.1.405'
   NotificationsCreatorVersion: '1.0.0-dev.20220511.1'
   CodeOwnersSubscriberVersion: '1.0.0-dev.20220302.2'
+  PipelineOwnersExtractorVersion: '1.0.0-dev.20220728.6'

tools/pipeline-owners-extractor/Azure.Sdk.Tools.PipelineOwnersExtractor/Program.cs

@@ -1,4 +1,6 @@
 using System;
+using System.IO;
+using System.Reflection;
 using System.Threading.Tasks;
 using Azure.Core;
 using Azure.Identity;
@@ -6,7 +8,6 @@ using Azure.Sdk.Tools.NotificationConfiguration;
 using Azure.Sdk.Tools.NotificationConfiguration.Helpers;
 using Azure.Sdk.Tools.NotificationConfiguration.Services;
 using Azure.Sdk.Tools.PipelineOwnersExtractor.Configuration;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
@@ -23,6 +24,8 @@ namespace Azure.Sdk.Tools.PipelineOwnersExtractor
             Console.WriteLine("Initializing PipelineOwnersExtractor");
 
             using var host = Host.CreateDefaultBuilder(args)
+                // This affects config file loading and defaults to Directory.GetCurrentDirectory()
+                .UseContentRoot(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location))
                 .ConfigureServices((context, services) =>
                 {
                     services.AddSingleton<TokenCredential, DefaultAzureCredential>();