[cpack/stabilization/2106-jenkins] updated installer job temp dir to use WORKSPACE_TMP and added log file dump on error

scripts/build/Platform/Windows/installer_windows.cmd

@@ -21,7 +21,7 @@ IF NOT EXIST %OUTPUT_DIRECTORY% (
 PUSHD %OUTPUT_DIRECTORY%
 
 REM Override the temporary directory used by wix to the workspace
-SET "WIX_TEMP=!WORKSPACE!/temp/wix"
+SET "WIX_TEMP=!WORKSPACE_TMP!/wix"
 IF NOT EXIST "%WIX_TEMP%" (
     MKDIR "%WIX_TEMP%"
 )
@@ -52,7 +52,13 @@ IF ERRORLEVEL 1 (
 
 ECHO [ci_build] "!CPACK_PATH!" -C %CONFIGURATION%
 "!CPACK_PATH!"  -C %CONFIGURATION%
-IF NOT %ERRORLEVEL%==0 GOTO :popd_error
+IF NOT %ERRORLEVEL%==0 (
+    rem dump the log file generated by cpack specifically for WIX
+    ECHO ****************************************************************
+    TYPE "_CPack_Packages\\win64\\WIX\\wix.log"
+    ECHO ****************************************************************
+    GOTO :popd_error
+)
 
 POPD
 EXIT /b 0