feat(core): improved files migration code

src/main.rs

@@ -15,7 +15,7 @@ use anime_launcher_sdk::anime_game_core::genshin::prelude::*;
 use tracing_subscriber::prelude::*;
 use tracing_subscriber::filter::*;
 
-pub mod move_folder;
+pub mod move_files;
 pub mod i18n;
 pub mod background;
 pub mod ui;

src/move_files.rs

@@ -0,0 +1,31 @@
+use std::path::Path;
+use std::io::Result;
+
+/// Move files from one folder to another
+pub fn move_files(from: impl AsRef<Path>, to: impl AsRef<Path>) -> Result<()> {
+    for entry in from.as_ref().read_dir()?.flatten() {
+        let source = entry.path();
+        let target = to.as_ref().join(entry.file_name());
+
+        if std::fs::rename(&source, &target).is_err() {
+            if source.is_dir() {
+                std::fs::create_dir_all(&target)
+                    .and_then(|_| move_files(&source, &target))
+                    .and_then(|_| std::fs::remove_dir_all(&source))?;
+            }
+
+            else if source.is_symlink() {
+                std::fs::read_link(&source)
+                    .and_then(|link_target| std::os::unix::fs::symlink(link_target, &target))
+                    .and_then(|_| std::fs::remove_file(&source))?;
+            }
+
+            else {
+                std::fs::copy(&source, &target)
+                    .and_then(|_| std::fs::remove_file(&source))?;
+            } 
+        }
+    }
+
+    Ok(())
+}

src/move_folder.rs

@@ -1,26 +0,0 @@
-use std::path::Path;
-
-pub fn move_folder(from: &Path, to: &Path) -> std::io::Result<()> {
-    if !to.exists() {
-        std::fs::create_dir_all(to)?;
-    }
-
-    for entry in from.read_dir()?.flatten() {
-        let to_path = to.join(entry.file_name());
-
-        if entry.metadata()?.is_dir() {
-            move_folder(&entry.path(), &to_path)?;
-        }
-
-        else if entry.metadata()?.is_file() {
-            std::fs::copy(entry.path(), to_path)?;
-            std::fs::remove_file(entry.path())?;
-        }
-
-        // TODO: symlinks?
-    }
-
-    std::fs::remove_dir_all(from)?;
-
-    Ok(())
-}

src/ui/first_run/default_paths.rs

@@ -369,7 +369,7 @@ impl SimpleAsyncComponent for DefaultPathsApp {
                                 )));
 
                                 if &from != to && from.exists() {
-                                    move_folder::move_folder(from, to).expect(&format!("Failed to move folder: {:?} -> {:?}", from, to));
+                                    move_files::move_files(from, to).expect(&format!("Failed to move folder: {:?} -> {:?}", from, to));
                                 }
 
                                 self.progress_bar.sender().send(ProgressBarMsg::UpdateProgress(i as u64 + 1, folders.len() as u64));

src/ui/main/migrate_folder.rs

@@ -10,7 +10,7 @@ pub fn migrate_folder(sender: ComponentSender<App>, from: PathBuf, to: PathBuf,
     sender.input(AppMsg::DisableButtons(true));
 
     std::thread::spawn(move || {
-        move_folder::move_folder(&from, &to).expect("Failed to perform migration");
+        move_files::move_files(&from, &to).expect("Failed to perform migration");
 
         if let Some(cleanup_folder) = cleanup_folder {
             std::fs::remove_dir_all(cleanup_folder).expect("Failed to remove cleanup folder");