Drop the migration from the older folder

Nothing has shipped, so there is nothing to migrate: the program makes
Documents/N1MM Logger+ and starts there.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RoGtneMQaz4M9w7Kk49AVD

README.md

@@ -425,12 +425,6 @@ and neither has anything to do with a log.
 On a system that does not say where Documents is — most Linux systems, until
 someone sets `XDG_DOCUMENTS_DIR` — it is `~/Documents/N1MM Logger+`.
 
-A version before this one kept everything in `Documents\Nonemm` or
-`~/.config/nonemm`. Those files are copied into N1MM's folders the first time
-this version runs, and the log and call history paths in the settings are moved
-with them, so the copy that opens is the copy that came over. The older folder
-is left as it was.
-
 ### Operators
 
 **Ctrl+O**, or **Config → Change Operator…**, asks who is at the radio. The

src/Nonemm.App/App.axaml.cs

@@ -18,7 +18,6 @@ public partial class App : Application
         {
             UserPaths paths = UserPaths.Default();
             paths.CreateFolders();
-            paths.AdoptOlderFiles();
             Settings settings = Settings.Load(paths.SettingsFile);
             Themes.Use(settings.Theme);
             Themes.Changed += (_, _) => ApplyTheme();

src/Nonemm.App/Configuration/UserPaths.cs

@@ -143,78 +143,4 @@ public sealed class UserPaths
                 Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
                 "Documents");
     }
-
-    /// Where versions before this one kept everything. Their files are copied
-    /// into N1MM's folders the first time this one runs.
-    public static string LegacyRoot() =>
-        OperatingSystem.IsWindows()
-            ? Path.Combine(
-                Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
-                "Nonemm")
-            : Path.Combine(
-                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-                "nonemm");
-
-    /// Copies what an older version kept into these folders, once: it runs only
-    /// while there is no settings file here and there is one there. The older
-    /// folder is left as it was, so nothing is lost if the operator goes back
-    /// to the older version.
-    ///
-    /// Paths inside the settings that pointed into the older folder — the log
-    /// database and the call history file — are moved with it, so the copy that
-    /// is opened is the copy that was brought over.
-    public bool AdoptOlderFiles(string? legacyRoot = null)
-    {
-        string older = legacyRoot ?? LegacyRoot();
-        string olderSettings = Path.Combine(older, "settings.json");
-        if (File.Exists(SettingsFile) || !File.Exists(olderSettings) || SameFolder(older, Root))
-        {
-            return false;
-        }
-        Copy(older, Root);
-        Settings settings = Settings.Load(olderSettings);
-        settings = settings with
-        {
-            DatabasePath = Brought(settings.DatabasePath, older),
-            CallHistoryFile = Brought(settings.CallHistoryFile, older),
-        };
-        settings.Save(SettingsFile);
-        return true;
-    }
-
-    /// A file that was inside the older folder is now inside this one, in the
-    /// same place under it. A file kept anywhere else is left where it is.
-    private string Brought(string path, string older)
-    {
-        if (path.Trim().Length == 0
-            || !path.StartsWith(older + Path.DirectorySeparatorChar, StringComparison.Ordinal))
-        {
-            return path;
-        }
-        return Path.Combine(Root, path[(older.Length + 1)..]);
-    }
-
-    private static void Copy(string from, string to)
-    {
-        Directory.CreateDirectory(to);
-        foreach (string file in Directory.GetFiles(from))
-        {
-            // the settings file is written again afterwards, with the paths
-            // inside it moved
-            if (!Path.GetFileName(file).Equals("settings.json", StringComparison.OrdinalIgnoreCase))
-            {
-                File.Copy(file, Path.Combine(to, Path.GetFileName(file)), overwrite: false);
-            }
-        }
-        foreach (string folder in Directory.GetDirectories(from))
-        {
-            Copy(folder, Path.Combine(to, Path.GetFileName(folder)));
-        }
-    }
-
-    private static bool SameFolder(string one, string other) =>
-        string.Equals(
-            Path.TrimEndingDirectorySeparator(Path.GetFullPath(one)),
-            Path.TrimEndingDirectorySeparator(Path.GetFullPath(other)),
-            StringComparison.Ordinal);
 }

tests/Nonemm.App.Tests/UserPathsTests.cs

@@ -62,36 +62,4 @@ public class UserPathsTests : IDisposable
 
         Assert.Equal(Path.Combine(root, "Nonemm", "settings.json"), paths.SettingsFile);
     }
-
-    [Fact]
-    public void AnOlderVersionsFilesAreCopiedInOnce()
-    {
-        string older = Path.Combine(root, "older");
-        Directory.CreateDirectory(Path.Combine(older, "Databases"));
-        File.WriteAllText(Path.Combine(older, "Databases", "om5m.s3db"), "log");
-        string database = Path.Combine(older, "Databases", "om5m.s3db");
-        new Settings { DatabasePath = database }.Save(Path.Combine(older, "settings.json"));
-        UserPaths paths = new(Path.Combine(root, "new"));
-        paths.CreateFolders();
-
-        Assert.True(paths.AdoptOlderFiles(older));
-
-        Assert.Equal("log", File.ReadAllText(Path.Combine(paths.Databases, "om5m.s3db")));
-        // the log that was opened is the log that was brought over
-        Assert.Equal(
-            Path.Combine(paths.Databases, "om5m.s3db"),
-            Settings.Load(paths.SettingsFile).DatabasePath);
-        Assert.False(paths.AdoptOlderFiles(older));
-        // the older folder is left as it was
-        Assert.True(File.Exists(database));
-    }
-
-    [Fact]
-    public void NothingIsCopiedWhenThereIsNoOlderFolder()
-    {
-        UserPaths paths = new(root);
-        paths.CreateFolders();
-
-        Assert.False(paths.AdoptOlderFiles(Path.Combine(root, "nowhere")));
-    }
 }