Add support for images in custom rendered fields

src/WorkItemMigrator/WorkItemImport/Agent.cs

@@ -128,6 +128,34 @@ public bool ImportRevision(WiRevision rev, WorkItem wi, Settings settings)
                     {
                         Logger.Log(ex, $"Failed to correct description for '{wi.Id}', rev '{rev}'.");
                     }
+
+                    // Correct other HTMl fields than description
+                    foreach (var field in settings.FieldMap.Fields)
+                    {
+                        if (
+                            field.Mapper == "MapRendered"
+                            && (field.For == "All" || field.For.Split(',').Contains(wi.Fields[WiFieldReference.WorkItemType]))
+                            && (field.NotFor == null || !field.NotFor.Split(',').Contains(wi.Fields[WiFieldReference.WorkItemType]))
+                            && wi.Fields.ContainsKey(field.Target)
+                            && field.Target != WiFieldReference.Description
+                        )
+                        {
+                            try
+                            {
+                                _witClientUtils.CorrectRenderedField(
+                                    wi,
+                                    _context.GetItem(rev.ParentOriginId),
+                                    rev,
+                                    field.Target,
+                                    _context.Journal.IsAttachmentMigrated
+                                );
+                            }
+                            catch (Exception ex)
+                            {
+                                Logger.Log(ex, $"Failed to correct description for '{wi.Id}', rev '{rev}'.");
+                            }
+                        }
+                    }
                 }
 
                 // rev with a commit won't have meaningful information, skip saving fields

src/WorkItemMigrator/WorkItemImport/ImportCommandLine.cs

@@ -90,7 +90,8 @@ private bool ExecuteMigration(CommandOption token, CommandOption url, CommandOpt
                     IgnoreFailedLinks = config.IgnoreFailedLinks,
                     ProcessTemplate = config.ProcessTemplate,
                     IncludeLinkComments = config.IncludeLinkComments,
-                    IncludeCommits = config.IncludeCommits
+                    IncludeCommits = config.IncludeCommits,
+                    FieldMap = config.FieldMap
                 };
 
                 // initialize Azure DevOps/TFS connection. Creates/fetches project, fills area and iteration caches.

src/WorkItemMigrator/WorkItemImport/Settings.cs

@@ -1,4 +1,6 @@
-namespace WorkItemImport
+using Migration.Common.Config;
+
+namespace WorkItemImport
 {
     public class Settings
     {
@@ -18,5 +20,6 @@ public Settings(string account, string project, string pat)
         public string ProcessTemplate { get; internal set; }
         public bool IncludeLinkComments { get; internal set; }
         public bool IncludeCommits { get; internal set; }
+        public FieldMap FieldMap { get; internal set; }
     }
 }

src/WorkItemMigrator/WorkItemImport/WitClient/WitClientUtils.cs

@@ -463,6 +463,39 @@ public bool CorrectDescription(WorkItem wi, WiItem wiItem, WiRevision rev, IsAtt
             return descUpdated;
         }
 
+        public bool CorrectRenderedField(WorkItem wi, WiItem wiItem, WiRevision rev, string fieldRef, IsAttachmentMigratedDelegate<string, string, bool> isAttachmentMigratedDelegate)
+        {
+            if (wi == null)
+            {
+                throw new ArgumentException(nameof(wi));
+            }
+
+            if (wiItem == null)
+            {
+                throw new ArgumentException(nameof(wiItem));
+            }
+
+            if (rev == null)
+            {
+                throw new ArgumentException(nameof(rev));
+            }
+
+            string fieldValue = wi.Fields[fieldRef].ToString();
+            if (string.IsNullOrWhiteSpace(fieldValue))
+                return false;
+
+            bool updated = false;
+
+            CorrectImagePath(wi, wiItem, rev, ref fieldValue, ref updated, isAttachmentMigratedDelegate);
+
+            if (updated)
+            {
+                wi.Fields[fieldRef] = fieldValue;
+            }
+
+            return updated;
+        }
+
         public bool CorrectAcceptanceCriteria(WorkItem wi, WiItem wiItem, WiRevision rev, IsAttachmentMigratedDelegate<string, string, bool> isAttachmentMigratedDelegate)
         {
             if (wi == null)