Add wrapper directive migration framework

src/Compliance/Compliance.md

@@ -17,10 +17,20 @@ require:
 
 ``` yaml
 directive:
+# Wrapper migration: PATCH and DELETE for the nested /dataSource navigation are
+# suppressed in src/Compliance/wrapper/Compliance_cmdletConfigurations.cs and
+# mapped in the adjacent Compliance_directiveMigrationMap.json. NamingTests pins
+# the behavior. Keep this AutoRest directive active until the service-module
+# pipeline is retired.
   - where:
       subject: (^ComplianceEdiscoveryCaseNoncustodialDataSource$)
       variant: ^Update1$|^UpdateExpanded1$|^UpdateViaIdentity1$|^UpdateViaIdentityExpanded1$|^Delete1$|^DeleteViaIdentity1$
     remove: true
+# Wrapper migration: the wrapper's structural path naming already emits the
+# appended DataSource noun for GET .../noncustodialDataSources/{id}/dataSource;
+# the adjacent Compliance_directiveMigrationMap.json records the profile evidence
+# and NamingTests pins the behavior. Keep this AutoRest rename active until the
+# service-module pipeline is retired.
   - where:
       subject: (^ComplianceEdiscoveryCaseNoncustodialDataSource$)
       variant: ^Get1$|^GetViaIdentity1$

src/Compliance/wrapper/Compliance_cmdletConfigurations.cs

@@ -1,3 +1,26 @@
 using System.Collections.Generic;
+using System.Net.Http;
+
 namespace WrapperGenerator;
-public static partial class CmdletConfigurator { private static readonly List<Entry> ComplianceCmdletConfigurations = []; }
+
+public static partial class CmdletConfigurator
+{
+    private static readonly List<Entry> ComplianceCmdletConfigurations =
+    [
+        // Compliance.md removes the Update1/Delete1 variants for
+        // ComplianceEdiscoveryCaseNoncustodialDataSource. Those variants are the nested
+        // /dataSource navigation operations; the parent noncustodialDataSource item remains.
+        new(OverrideKind.SuppressOperation, HttpMethod.Patch,
+            "/compliance/ediscovery/cases/{}/noncustodialdatasources/{}/datasource",
+            Match: PathMatch.Exact, Value: null,
+            Reason: "Compliance.md removes Update1 for ComplianceEdiscoveryCaseNoncustodialDataSource"),
+        new(OverrideKind.SuppressOperation, HttpMethod.Delete,
+            "/compliance/ediscovery/cases/{}/noncustodialdatasources/{}/datasource",
+            Match: PathMatch.Exact, Value: null,
+            Reason: "Compliance.md removes Delete1 for ComplianceEdiscoveryCaseNoncustodialDataSource"),
+
+        // Compliance.md renames the corresponding Get1 variant by appending DataSource.
+        // The wrapper's path-based naming already emits that published noun, so no override
+        // entry is needed; NamingTests pins it beside the suppressions above.
+    ];
+}

src/Compliance/wrapper/Compliance_directiveMigrationMap.json

@@ -0,0 +1,57 @@
+{
+  "mappings": [
+    {
+      "module": "Compliance",
+      "directiveIndex": 1,
+      "classification": "CmdletSuppression",
+      "sourceContains": "variant: ^Update1$|^UpdateExpanded1$|^UpdateViaIdentity1$|^UpdateViaIdentityExpanded1$|^Delete1$|^DeleteViaIdentity1$",
+      "implementation": "CmdletConfigurator",
+      "notes": "Suppress nested dataSource PATCH and DELETE; keep the parent noncustodialDataSource item operations.",
+      "profiles": {
+        "v1.0": {
+          "absenceExpected": true,
+          "operations": []
+        },
+        "beta": {
+          "absenceExpected": false,
+          "operations": [
+            {
+              "method": "PATCH",
+              "path": "/compliance/ediscovery/cases/{case-id}/noncustodialDataSources/{noncustodialDataSource-id}/dataSource",
+              "operationId": "compliance.ediscovery.cases.noncustodialDataSources.UpdateDataSource"
+            },
+            {
+              "method": "DELETE",
+              "path": "/compliance/ediscovery/cases/{case-id}/noncustodialDataSources/{noncustodialDataSource-id}/dataSource",
+              "operationId": "compliance.ediscovery.cases.noncustodialDataSources.DeleteDataSource"
+            }
+          ]
+        }
+      }
+    },
+    {
+      "module": "Compliance",
+      "directiveIndex": 2,
+      "classification": "SubjectRename",
+      "sourceContains": "variant: ^Get1$|^GetViaIdentity1$",
+      "implementation": "StructuralNaming",
+      "notes": "The wrapper derives the appended DataSource noun directly from the nested navigation path; NamingTests pins the result.",
+      "profiles": {
+        "v1.0": {
+          "absenceExpected": true,
+          "operations": []
+        },
+        "beta": {
+          "absenceExpected": false,
+          "operations": [
+            {
+              "method": "GET",
+              "path": "/compliance/ediscovery/cases/{case-id}/noncustodialDataSources/{noncustodialDataSource-id}/dataSource",
+              "operationId": "compliance.ediscovery.cases.noncustodialDataSources.GetDataSource"
+            }
+          ]
+        }
+      }
+    }
+  ]
+}