fix: make -revert scan the PathInput tree like the no-parameter run

-revert was DB-driven, searching each blog's Blogs.TTFolderPath
non-recursively for *.bak. That tree differs from the no-parameter run,
which recursively walks PathInput. Rewrite RevertMode to recursively walk
PathInput (filesystem-only, no DB), with the optional [blogname] argument
now filtering by path substring. Restore mechanics unchanged.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

URLNotesGrabberCORE/Program.cs

@@ -185,7 +185,7 @@ namespace URLNotesGrabberCORE
 
                         Console.WriteLine("-output\t Export posts from TL.db back to .txt files in each blog's TTFolderPath");
 
-                        Console.WriteLine("-revert [blogname]\t Inverse of -output: restore *.bak back to *.txt (current .txt saved as next-free .bkN)");
+                        Console.WriteLine("-revert [blogname]\t Recursively scan the PathInput tree and restore *.bak back to *.txt (current .txt saved as next-free .bkN); optional blogname filters by path substring");
 
                         Console.WriteLine("-correct [bakPath]\t Dry-run: report multi-line field updates available from a BAK directory");
 

URLNotesGrabberCORE/RevertMode.cs

@@ -2,38 +2,36 @@ using Microsoft.Extensions.Configuration;
 
 namespace URLNotesGrabberCORE
 {
-    // Inverse of OutputMode. For each Blog with a TTFolderPath, restores every *.bak back
+    // Inverse of OutputMode. Recursively walks the PathInput tree (the same directory tree the
-    // to its *.txt, first preserving the current *.txt as the next-free *.bkN. Consumes
+    // no-parameter run uses) and restores every *.bak back to its *.txt, first preserving the
-    // the *.bak (File.Move). Filesystem-only; reads the DB only to enumerate folders.
+    // current *.txt as the next-free *.bkN. Consumes the *.bak (File.Move). Filesystem-only;
+    // does not read the DB. An optional blogname argument filters by path substring.
     public static class RevertMode
     {
         public static int Run(IConfiguration config, string? blogFilter = null)
         {
-            DataAccess.EnsureTTFileHelperColumnsExist();
+            string? root = config["appSettings:PathInput"];
-
+            if (string.IsNullOrWhiteSpace(root) || !Directory.Exists(root))
-            var blogs = DataAccess.GetAllBlogsWithTTFolderPath();
-            if (!string.IsNullOrWhiteSpace(blogFilter))
-                blogs = blogs.Where(b => string.Equals(b.BlogName, blogFilter, StringComparison.OrdinalIgnoreCase)).ToList();
-
-            Console.WriteLine($"Found {blogs.Count} blog(s) to process.");
-
-            // Count total *.bak files up front so the confirmation prompt is meaningful.
-            int totalBakFiles = 0;
-            foreach (var (_, ttFolderPath) in blogs)
             {
-                if (string.IsNullOrWhiteSpace(ttFolderPath) || !Directory.Exists(ttFolderPath))
+                Console.WriteLine($"PathInput is not set or does not exist: '{root}'. Nothing to revert.");
-                    continue;
-                try { totalBakFiles += Directory.GetFiles(ttFolderPath, "*.bak").Length; }
-                catch { }
-            }
-
-            if (totalBakFiles == 0)
-            {
-                Console.WriteLine("No .bak files found in any blog folder. Nothing to revert.");
                 return 0;
             }
 
-            Console.Write($"WARNING: This will restore {totalBakFiles} .bak file(s) over their .txt files across {blogs.Count} blog folder(s). " +
+            Console.WriteLine($"Searching for .bak files under: {root}");
+
+            // Recursively collect every *.bak, optionally filtered by path substring (blogname).
+            var bakFiles = EnumerateBakFiles(root)
+                .Where(f => string.IsNullOrWhiteSpace(blogFilter)
+                            || f.IndexOf(blogFilter, StringComparison.OrdinalIgnoreCase) >= 0)
+                .ToList();
+
+            if (bakFiles.Count == 0)
+            {
+                Console.WriteLine("No .bak files found. Nothing to revert.");
+                return 0;
+            }
+
+            Console.Write($"WARNING: This will restore {bakFiles.Count} .bak file(s) over their .txt files. " +
                           $"Current .txt files are preserved as the next-free .bkN. Continue? (yes/no): ");
             string? response = Console.ReadLine();
             if (string.IsNullOrWhiteSpace(response) || !response.Equals("yes", StringComparison.OrdinalIgnoreCase))
@@ -42,38 +40,7 @@ namespace URLNotesGrabberCORE
                 return 0;
             }
 
-            foreach (var (blogName, ttFolderPath) in blogs)
-            {
-                Console.WriteLine($"\nProcessing blog: {blogName}");
-
-                if (string.IsNullOrWhiteSpace(ttFolderPath) || !Directory.Exists(ttFolderPath))
-                {
-                    Console.WriteLine($"  TTFolderPath does not exist or is not set. Skipping.");
-                    continue;
-                }
-
-                Console.WriteLine($"  TTFolderPath: {ttFolderPath}");
-
-                var (restored, backedUp) = RevertFolder(ttFolderPath);
-                Console.WriteLine($"  Restored {restored} file(s); backed up {backedUp} current .txt file(s).");
-            }
-
-            Console.WriteLine("\nRevert mode complete.");
-            return 0;
-        }
-
-        // For each *.bak: back up the current *.txt to the next-free *.bkN, then File.Move(bak -> txt).
-        private static (int restored, int backedUp) RevertFolder(string folderPath)
-        {
             int restored = 0, backedUp = 0;
-
-            var bakFiles = Directory.GetFiles(folderPath, "*.bak");
-            if (bakFiles.Length == 0)
-            {
-                Console.WriteLine("    Nothing to revert (no .bak files).");
-                return (restored, backedUp);
-            }
-
             foreach (var bakFile in bakFiles)
             {
                 try
@@ -90,15 +57,44 @@ namespace URLNotesGrabberCORE
 
                     File.Move(bakFile, txtPath);
                     restored++;
-                    Console.WriteLine($"    Restored {Path.GetFileName(bakFile)} -> {Path.GetFileName(txtPath)}");
+                    Console.WriteLine($"  Restored {bakFile} -> {Path.GetFileName(txtPath)}");
                 }
                 catch (Exception ex)
                 {
-                    Console.WriteLine($"    Error reverting {Path.GetFileName(bakFile)}: {ex.Message}");
+                    Console.WriteLine($"  Error reverting {bakFile}: {ex.Message}");
                 }
             }
 
-            return (restored, backedUp);
+            Console.WriteLine($"\nRevert mode complete. Restored {restored} file(s); backed up {backedUp} current .txt file(s).");
+            return 0;
+        }
+
+        // Recursively yields every *.bak path under root. Per-directory try/catch so an
+        // inaccessible folder doesn't abort the whole walk (mirrors TraverseDirectory).
+        private static IEnumerable<string> EnumerateBakFiles(string path)
+        {
+            string[] subDirs;
+            try { subDirs = Directory.GetDirectories(path); }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"  Skipping '{path}': {ex.Message}");
+                yield break;
+            }
+
+            foreach (var dir in subDirs)
+                foreach (var bak in EnumerateBakFiles(dir))
+                    yield return bak;
+
+            string[] bakFiles;
+            try { bakFiles = Directory.GetFiles(path, "*.bak"); }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"  Skipping files in '{path}': {ex.Message}");
+                yield break;
+            }
+
+            foreach (var bak in bakFiles)
+                yield return bak;
         }
 
         // Returns the lowest unused .bkN path for a given .txt file (.bk1, .bk2, ...).