How do you configure nlog to change the file target path based on the computers architecture (32/64 bit).

Question

Example on 32 bit OS the file target path would be c:\temp\32\ and on a 64bit c:\temp\64

Answer 1

You can use a layout renderer in the filenname.

You can use:

• The Environment layout renderer with PROCESSOR_ARCHITECTURE variable which is AMD64 or X86 (or IA64, see superuser):

  Usage: ${environment:PROCESSOR_ARCHITECTURE}

  Example:

  <target 
     xsi:type="File"
     name="file1" 
     fileName="c:\temp\${when:when='${environment:PROCESSOR_ARCHITECTURE}'='X86':inner=32:else=64}\file.log" /> 
  

• Or, use the When layout renderer for you conditions.

  Example, two targets:

  <target 
     xsi:type="File"
     name="file_32" 
     fileName="c:\temp\32\file.log" /> 
  <target 
     xsi:type="File"
     name="file_64" 
     fileName="c:\temp\64\file.log" /> 
  

  and two rules:

  <rules>
      <logger name="*" writeTo="file_32">
          <filters>
              <when condition="'${environment:PROCESSOR_ARCHITECTURE}'!='X86'" action="Ignore" />
          </filters>
      </logger>
      <logger name="*" writeTo="file_64">
          <filters>
              <when condition="'${environment:PROCESSOR_ARCHITECTURE}'='X86'" action="Ignore" />
          </filters>
      </logger>
  </rules>