Don't try to sign installers for ARM (since they aren't built)

eng/build.yml

@@ -35,13 +35,14 @@ phases:
       displayName: Show TestParameter
     - script: 'echo RunTests: $(RunTests)'
       displayName: Show RunTests
+    - script: 'echo AdditionalBuildParameters: $(AdditionalBuildParameters)'
+      displayName: Show AdditionalBuildParameters
     - ${{ if eq(parameters.agentOs, 'Windows_NT') }}:
       - script: build.cmd
                   $(TestParameter)
                   -pack -publish
                   -Configuration $(BuildConfig)
                   -Architecture $(BuildArchitecture)
-                  -sign /p:SignCoreSdk=true /p:DotNetSignType=$(SignType)
                   $(AdditionalBuildParameters)
         displayName: Build
         env:

eng/setbuildinfo.bat

@@ -5,24 +5,6 @@ setlocal
 set Architecture=%1
 set Config=%2
 
-IF /I "%Architecture:~0,3%"=="ARM" (
-    ECHO ARM
-    ECHO ##vso[task.setvariable variable=TestParameter]
-    ECHO ##vso[task.setvariable variable=RunTests]false
-) ELSE (
-    ECHO NOT ARM
-    ECHO ##vso[task.setvariable variable=TestParameter]-test
-    ECHO ##vso[task.setvariable variable=RunTests]true
-)
-
-if /I "%SYSTEM_TEAMPROJECT%" == "Public" (
-    ECHO Public CI
-    ECHO ##vso[task.setvariable variable=SignType]test
-) ELSE (
-    ECHO Not public CI
-    ECHO ##vso[task.setvariable variable=SignType]real
-)
-
 if "%AdditionalBuildParameters%" == "$(_AdditionalBuildParameters)" (
     REM Prevent the literal "$(_AdditionalBuildParameters)" to be passed to the build script
     ECHO Setting AdditionalBuildParameters to empty
@@ -31,3 +13,26 @@ if "%AdditionalBuildParameters%" == "$(_AdditionalBuildParameters)" (
     ECHO AdditionalBuildParameters is already set to: %AdditionalBuildParameters%
 )
 
+if /I "%SYSTEM_TEAMPROJECT%" == "Public" (
+    ECHO Public CI
+    SET SignType=test
+) ELSE (
+    ECHO Not public CI
+    SET SignType=real
+)
+ECHO ##vso[task.setvariable variable=SignType]%SignType%
+
+IF /I "%Architecture:~0,3%"=="ARM" (
+    ECHO ARM
+    ECHO ##vso[task.setvariable variable=TestParameter]
+    ECHO ##vso[task.setvariable variable=RunTests]false
+
+    ECHO ##vso[task.setvariable variable=AdditionalBuildParameters]/p:SignCoreSdk=true /p:DotNetSignType=%SignType%
+
+) ELSE (
+    ECHO NOT ARM
+    ECHO ##vso[task.setvariable variable=TestParameter]-test
+    ECHO ##vso[task.setvariable variable=RunTests]true
+
+    ECHO ##vso[task.setvariable variable=AdditionalBuildParameters]-sign /p:SignCoreSdk=true /p:DotNetSignType=%SignType%
+)