Remove Append as an Action for TDML in the launch wizard + VS Code settings and remove relevant scala code

Closes apache#1031

Author: JeremyYao

debugger/src/main/scala/org.apache.daffodil.debugger.dap/Parse.scala

@@ -339,7 +339,7 @@ object Parse {
     // }
     //
     // The action field is parsed first.
-    // If it is a valid action ('generate' | 'append' | 'execute' | 'none'), create a LaunchArgs object of the appropriate type
+    // If it is a valid action ('generate' | 'execute' | 'none'), create a LaunchArgs object of the appropriate type
     // If it is 'none' or missing, create a LaunchArgs.Manual object. This will ignore any other fields in the tdmlConfig object.
     //
     // arguments:  Launch config
@@ -375,21 +375,6 @@ object Parse {
                 parseVariables(arguments),
                 parseTunables(arguments)
               ).parMapN(LaunchArgs.TDMLConfig.Generate.apply)
-            case "append" =>
-              (
-                parseSchema(arguments),
-                parseData(arguments),
-                parseStopOnEntry(arguments),
-                parseInfosetFormat(arguments),
-                parseInfosetOutput(arguments, true),
-                parseTDMLName(tdmlConfig),
-                parseTDMLDescription(tdmlConfig),
-                parseTDMLPath(tdmlConfig),
-                parseRootName(arguments),
-                parseRootNamespace(arguments),
-                parseVariables(arguments),
-                parseTunables(arguments)
-              ).parMapN(LaunchArgs.TDMLConfig.Append.apply)
             case "execute" =>
               (
                 parseStopOnEntry(arguments),
@@ -417,7 +402,7 @@ object Parse {
               ).parMapN(LaunchArgs.Manual.apply)
             case invalidType =>
               Left(
-                s"invalid 'tdmlConfig.action': '$invalidType', must be 'generate', 'append', 'none', or 'execute'"
+                s"invalid 'tdmlConfig.action': '$invalidType', must be 'generate', 'none', or 'execute'"
               ).toEitherNel
           }
       }

debugger/src/test/scala/org.apache.daffodil.debugger/ParseSuite.scala

@@ -138,7 +138,7 @@ class ParseSuite extends FunSuite {
     assertEquals(parseResult.isLeft, true)
     assertEquals(
       parseResult.left.get.head,
-      "invalid 'tdmlConfig.action': 'InvalidAction', must be 'generate', 'append', 'none', or 'execute'"
+      "invalid 'tdmlConfig.action': 'InvalidAction', must be 'generate', 'none', or 'execute'"
     )
   }
 

package.json

@@ -572,11 +572,10 @@
                     "enum": [
                       "none",
                       "generate",
-                      "append",
                       "execute"
                     ],
                     "default": "generate",
-                    "description": "TDML Case Action (none | generate | append | exectute)"
+                    "description": "TDML Case Action (none | generate | exectute)"
                   },
                   "name": {
                     "type": "string",

src/launchWizard/launchWizard.ts

@@ -496,7 +496,7 @@ class LaunchWizard {
     })
 
     let tdmlActionSelect = 'none'
-    let tdmlActions = ['none', 'generate', 'append', 'execute']
+    let tdmlActions = ['none', 'generate', 'execute']
     let tdmlAction =
       'tdmlConfig' in defaultValues ? defaultValues.tdmlConfig['action'] : null
     let tdmlName =
@@ -733,7 +733,7 @@ class LaunchWizard {
 
       <div id="tdmlActionDiv" class="setting-div">
         <p>TDML Action:</p>
-        <p class="setting-description">TDML Action (none | generate | append | execute)</p>
+        <p class="setting-description">TDML Action (none | generate | execute)</p>
         <select onChange="updateTDMLAction()" class="file-input" style="width: 200px;" id="tdmlAction">
           ${tdmlActionSelect}
         </select>

src/launchWizard/script.js

@@ -326,7 +326,6 @@ function save() {
       break
     case 'generate':
       obj.configurations[0].tdmlConfig.path = configValues.tdmlPath
-    case 'append':
     case 'execute':
       obj.configurations[0].tdmlConfig.name = configValues.tdmlName
       obj.configurations[0].tdmlConfig.description =