Add file purging to tray (#515)

docs/mdsource/tray.source.md

@@ -54,6 +54,11 @@ Clicking "file1" or "file2" will delete file1 or file2 respectively. The drop do
 Discard will clear all currently tracked items.
 
 
+### Purge verified files
+
+Prompts for a directory, and then recursively deletes all `*.verified.*` in that directory.
+
+
 ### Options
 
 <img src="..\src\DiffEngineTray.Tests\OptionsFormTests.Default.verified.png">

docs/tray.md

@@ -61,6 +61,11 @@ Clicking "file1" or "file2" will delete file1 or file2 respectively. The drop do
 Discard will clear all currently tracked items.
 
 
+### Purge verified files
+
+Prompts for a directory, and then recursively deletes all `*.verified.*` in that directory.
+
+
 ### Options
 
 <img src="..\src\DiffEngineTray.Tests\OptionsFormTests.Default.verified.png">

src/DiffEngineTray/FilePurger.cs

@@ -0,0 +1,91 @@
+static class FilePurger
+{
+    public static void Launch()
+    {
+        var thread = new Thread(Inner);
+        thread.SetApartmentState(ApartmentState.STA);
+        thread.Start();
+    }
+
+    static void Inner()
+    {
+        using var dialog = new FolderBrowserDialog();
+        var directoryResult = dialog.ShowDialog();
+
+        var path = dialog.SelectedPath;
+        if (directoryResult != DialogResult.OK ||
+            string.IsNullOrWhiteSpace(path))
+        {
+            return;
+        }
+
+        var files = Directory.GetFiles(path, "*.verified.*", SearchOption.AllDirectories);
+
+        if (files.Length == 0)
+        {
+            MessageBox.Show($"No *.verified.* files found in {path}");
+            return;
+        }
+
+        if (Confirm(files))
+        {
+            DeleteFiles(files);
+        }
+    }
+
+    static bool Confirm(string[] files)
+    {
+        var result = AskQuestion(
+            $"""
+             Files found: {files.Length}.
+             Delete files?
+             """,
+            "Confirm",
+            MessageBoxButtons.OKCancel);
+        return result == DialogResult.OK;
+    }
+
+    static void DeleteFiles(string[] files)
+    {
+        for (var index = 0; index < files.Length; index++)
+        {
+            var file = files[index];
+            try
+            {
+                if (File.Exists(file))
+                {
+                    File.Delete(file);
+                }
+            }
+            catch (Exception exception)
+            {
+                var failedResult = AskQuestion(
+                    $"""
+                     Could not delete file: {file}
+                     Exception: {exception.Message}
+                     """,
+                    "Delete failed",
+                    MessageBoxButtons.AbortRetryIgnore);
+
+                if (failedResult == DialogResult.Abort)
+                {
+                    return;
+                }
+
+                if (failedResult == DialogResult.Retry)
+                {
+                    index--;
+                }
+            }
+        }
+    }
+
+    static DialogResult AskQuestion(string text, string caption, MessageBoxButtons buttons) =>
+        MessageBox.Show(
+            text,
+            caption,
+            buttons,
+            MessageBoxIcon.Question,
+            MessageBoxDefaultButton.Button1,
+            MessageBoxOptions.DefaultDesktopOnly);
+}

src/DiffEngineTray/MenuBuilder.cs

@@ -23,28 +23,25 @@ public static ContextMenuStrip Build(Action exit, Action launchOptions, Tracker
         items.Add(new MenuButton("Exit", exit, Images.Exit));
         items.Add(new MenuButton("Options", launchOptions, Images.Options));
         items.Add(new MenuButton("Open logs", Logging.OpenDirectory, Images.Folder));
+        items.Add(new MenuButton("Purge verified files", FilePurger.Launch, Images.Folder));
         items.Add(new MenuButton("Raise issue", IssueLauncher.Launch, Images.Link));
         return menu;
     }
 
-    static IEnumerable<ToolStripItem> NonDefaultMenus(ToolStripItemCollection items)
-    {
-        foreach (ToolStripItem item in items)
-        {
-            if (item.Text != "Exit" &&
-                item.Text != "Options" &&
-                item.Text != "Open logs" &&
-                item.Text != "Raise issue")
-            {
-                yield return item;
-            }
-        }
-    }
+    static IEnumerable<ToolStripItem> NonDefaultMenus(ToolStripItemCollection items) =>
+        items
+            .Cast<ToolStripItem>()
+            .Where(_ => _.Text != "Exit" &&
+                        _.Text != "Options" &&
+                        _.Text != "Open logs" &&
+                        _.Text != "Raise issue" &&
+                        _.Text != "Purge verified files")
+            .ToList();
 
     static void RemovePreviousItems(ToolStripItemCollection items)
     {
         // Use ToList to avoid deferred execution of NonDefaultMenus
-        foreach (var item in NonDefaultMenus(items).ToList())
+        foreach (var item in NonDefaultMenus(items))
         {
             items.Remove(item);
         }
@@ -53,7 +50,7 @@ static void RemovePreviousItems(ToolStripItemCollection items)
     static void DisposePreviousItems(ToolStripItemCollection items)
     {
         // Use ToList to avoid deferred execution of NonDefaultMenus
-        foreach (var item in NonDefaultMenus(items).ToList())
+        foreach (var item in NonDefaultMenus(items))
         {
             item.Dispose();
         }
@@ -66,11 +63,13 @@ static IEnumerable<ToolStripItem> BuildTrackingMenuItems(Tracker tracker)
             yield break;
         }
 
-        var deletes = tracker.Deletes
+        var deletes = tracker
+            .Deletes
             .OrderBy(_ => _.File)
             .ToList();
 
-        var moves = tracker.Moves
+        var moves = tracker
+            .Moves
             .OrderBy(_ => _.Temp)
             .ToList();
 
@@ -104,8 +103,12 @@ static IEnumerable<ToolStripItem> BuildGroupedMenuItems(
             foreach (var toolStripItem in BuildMovesAndDeletes(
                          group,
                          tracker,
-                         deletes.Where(_ => _.Group == group).ToList(),
-                         moves.Where(_ => _.Group == group).ToList()))
+                         deletes
+                             .Where(_ => _.Group == group)
+                             .ToList(),
+                         moves
+                             .Where(_ => _.Group == group)
+                             .ToList()))
             {
                 yield return toolStripItem;
                 addedCount++;

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591;CS0649</NoWarn>
-    <Version>15.4.6</Version>
+    <Version>15.5.0</Version>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>Testing, Snapshot, Diff, Compare</PackageTags>
     <Description>Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.</Description>