update exit code error message

Author: tgauth

dsc/tests/dsc.exit_code.tests.ps1

@@ -4,7 +4,7 @@
 Describe 'exit code tests' {
     It 'non-zero exit code in manifest has corresponding message' {
         $result = dsc resource get -r Test/ExitCode --input "{ exitCode: 8 }" 2>&1
-        $result | Should -Match 'ERROR.*?[Exit code 8].*?Placeholder from manifest for exit code 8'
+        $result | Should -Match 'ERROR.*?[Exit code 8].*?manifest description: Placeholder from manifest for exit code 8'
     }
     It 'non-zero exit code not in manifest has generic message' {
         $result = dsc resource get -r Test/ExitCode --input "{ exitCode: 1 }" 2>&1

dsc_lib/src/dscerror.rs

@@ -20,6 +20,9 @@ pub enum DscError {
     #[error("Command: Executable '{0}' [Exit code {1}] {2}")]
     CommandExit(String, i32, String),
 
+    #[error("Command: Resource '{0}' [Exit code {1}] manifest description: {2}")]
+    CommandExitFromManifest(String, i32, String),
+
     #[error("CommandOperation: {0} for executable '{1}'")]
     CommandOperation(String, String),
 

dsc_lib/src/dscresources/command_resource.rs

@@ -616,7 +616,7 @@ pub fn invoke_command(executable: &str, args: Option<Vec<String>>, input: Option
     if exit_code != 0 {
         if let Some(exit_codes) = exit_codes {
             if let Some(error_message) = exit_codes.get(&exit_code) {
-                return Err(DscError::Command(executable.to_string(), exit_code, error_message.to_string()));
+                return Err(DscError::CommandExitFromManifest(executable.to_string(), exit_code, error_message.to_string()));
             }
         }
         return Err(DscError::Command(executable.to_string(), exit_code, cleaned_stderr));