Fix handling of missing ConfigurationGroup property (#24077)

* Account for missing ConfigurationGroup

Our logic for setting the CoreCLR and Mono runtime configurations didn't
properly account for cases where only `$(Configuration)` was passed down
as a build property. It expects that both `$(Configuration)` and
`$(ConfigurationGroup)` are passed down as a pair.

This change guards against us accidentially setting the runtime
configuration to the current library definition of configuration which
is more like a target framework than Debug or Release.

Related to #23800

* Test for missing ConfigurationGroup

eng/Configurations.props

@@ -2,7 +2,8 @@
   <!-- Honor the generic RuntimeConfiguration property. -->
   <PropertyGroup>
     <RuntimeConfiguration Condition="'$(RuntimeConfiguration)' == ''">$(ConfigurationGroup)</RuntimeConfiguration>
-    <RuntimeConfiguration Condition="'$(RuntimeConfiguration)' == ''">$(Configuration)</RuntimeConfiguration>
+    <RuntimeConfiguration Condition="'$(RuntimeConfiguration)' == '' AND ('$(Configuration)' == 'Debug' OR '$(Configuration)' == 'Release')">$(Configuration)</RuntimeConfiguration>
+    <RuntimeConfiguration Condition="'$(RuntimeConfiguration)' == ''">Debug</RuntimeConfiguration>
     <CoreCLRConfiguration Condition="'$(CoreCLRConfiguration)' == ''">$(RuntimeConfiguration)</CoreCLRConfiguration>
     <MonoConfiguration Condition="'$(MonoConfiguration)' == '' and '$(RuntimeConfiguration.ToLower())' != 'checked'">$(RuntimeConfiguration)</MonoConfiguration>
     <!-- There's no checked configuration on Mono. -->

eng/pipelines/common/global-build-job.yml

@@ -1,6 +1,7 @@
 parameters:
   buildConfig: ''
-  runtimeConfig: ''
+  nameSuffix: ''
+  buildArgs: ''
   archType: ''
   osGroup: ''
   osSubgroup: ''
@@ -12,8 +13,8 @@ parameters:
 jobs:
 - template: /eng/common/templates/job/job.yml
   parameters:
-    name: ${{ format('build_{0}{1}_{2}_{3}_runtime{4}', parameters.osGroup, parameters.osSubgroup, parameters.archType, parameters.buildConfig, parameters.runtimeConfig) }}
-    displayName: ${{ format('Build {0}{1} {2} {3} Runtime {4}', parameters.osGroup, parameters.osSubgroup, parameters.archType, parameters.buildConfig, parameters.runtimeConfig) }}
+    name: ${{ format('build_{0}{1}_{2}_{3}_{4}', parameters.osGroup, parameters.osSubgroup, parameters.archType, parameters.buildConfig, parameters.nameSuffix) }}
+    displayName: ${{ format('Build {0}{1} {2} {3} {4}', parameters.osGroup, parameters.osSubgroup, parameters.archType, parameters.buildConfig, parameters.nameSuffix) }}
     dependsOn: checkout
     pool: ${{ parameters.pool }}
     container: ${{ parameters.container }}
@@ -36,7 +37,7 @@ jobs:
     - template: /eng/pipelines/common/clone-checkout-bundle-step.yml
 
     # Build
-    - script: $(Build.SourcesDirectory)$(dir)build$(scriptExt) -c ${{ parameters.buildConfig }} -runtimeConfiguration ${{ parameters.runtimeConfig }} -arch ${{ parameters.archType }} -ci
+    - script: $(Build.SourcesDirectory)$(dir)build$(scriptExt) -ci -arch ${{ parameters.archType }} ${{ parameters.buildArgs }} 
       displayName: Build product
 
     - task: PublishBuildArtifacts@1

eng/pipelines/global-build.yml

@@ -35,7 +35,7 @@ jobs:
 - template: /eng/pipelines/common/checkout-job.yml
 
 #
-# Build the combined runtime repo
+# Build with Release config and Debug runtimeConfiguration
 #
 - template: /eng/pipelines/common/platform-matrix.yml
   parameters:
@@ -46,10 +46,11 @@ jobs:
     - OSX_x64
     jobParameters:
       testGroup: innerloop
-      runtimeConfig: debug
+      nameSuffix: Runtime_Debug
+      buildArgs: -c release -runtimeConfiguration debug
 
 #
-# Build the combined runtime repo
+# Build with Debug config and Release runtimeConfiguration
 #
 - template: /eng/pipelines/common/platform-matrix.yml
   parameters:
@@ -59,4 +60,20 @@ jobs:
     - Linux_x64
     jobParameters:
       testGroup: innerloop
-      runtimeConfig: release
+      nameSuffix: Runtime_Release
+      buildArgs: -c debug -runtimeConfiguration release
+
+#
+# Build with RuntimeFlavor only. This excercise code paths where only Configuration is
+# specified. Catches cases where we depend on ConfigurationGroup also being specified
+#
+- template: /eng/pipelines/common/platform-matrix.yml
+  parameters:
+    jobTemplate: /eng/pipelines/common/global-build-job.yml
+    buildConfig: debug
+    platforms:
+    - Linux_x64
+    jobParameters:
+      testGroup: innerloop
+      nameSuffix: RuntimeFlavor_Mono
+      buildArgs: /p:RuntimeFlavor=Mono