feat: add support for --dry-run

justfile

@@ -1,2 +1,5 @@
-default:
+dry-run:
+  cargo run -- --dry-run ~/Nextcloud/Audible-Inbox/
+
+run:
   cargo run -- ~/Nextcloud/Audible-Inbox/

src/main.rs

@@ -17,30 +17,39 @@ struct Arguments {
 
     /// Path
     path: Option<String>,
+
+    /// Dry-Run
+    #[clap(long)]
+    dry_run: bool,
+}
+impl Arguments {
+    fn not_dry_run(&self) -> bool {
+        !self.dry_run
+    }
 }
 
 fn main() {
     let args = Arguments::parse();
     if args.version {
         println!("Version {}", crate_version!());
-    } else if let Some(path) = args.directory {
-        rename_files_in_directory(path);
-    } else if let Some(path) = args.path {
-        rename_files_in_directory(path);
+    } else if let Some(path) = &args.directory {
+        rename_files_in_directory(path.to_string(), &args);
+    } else if let Some(path) = &args.path {
+        rename_files_in_directory(path.to_string(), &args);
     } else {
         eprintln!("Please provide a directory");
     }
 }
 
-fn rename_files_in_directory(directory: String) {
+fn rename_files_in_directory(directory: String, args: &Arguments) {
     println!("Renaming files in {}", directory);
-    match rename_files(&directory, &directory) {
+    match rename_files(&directory, &directory, args) {
         Ok(count) => println!("Renamed {} files", count),
         Err(e) => eprintln!("Error: {}", e),
     }
 }
 
-fn rename_files(directory: &str, base: &str) -> Result<i32> {
+fn rename_files(directory: &str, base: &str, args: &Arguments) -> Result<i32> {
     let entries = read_dir(directory).context("Failed to read directory")?;
     let mut count = 0;
     for entry in entries {
@@ -48,7 +57,7 @@ fn rename_files(directory: &str, base: &str) -> Result<i32> {
         let path = entry.path();
         if path.is_dir() {
             if let Some(sub_dir) = path.to_str() {
-                count += rename_files(sub_dir, base).context("Failed to rename files")?;
+                count += rename_files(sub_dir, base, args).context("Failed to rename files")?;
             }
         }
         if path.is_file() {
@@ -68,10 +77,13 @@ fn rename_files(directory: &str, base: &str) -> Result<i32> {
                                 let dir = target_path.parent().with_context(|| {
                                     format!("Failed to get parent: {:#?}", target_path)
                                 })?;
+                                if args.not_dry_run() {
                                     create_dir_all(dir).with_context(|| {
                                         format!("Failed to create directory: {:#?}", dir)
                                     })?;
                                 }
+                            }
+                            if args.not_dry_run() {
                                 rename(&path, &target_path).with_context(|| {
                                     format!("Failed to rename file: {:#?}", target_path)
                                 })?;
@@ -81,6 +93,7 @@ fn rename_files(directory: &str, base: &str) -> Result<i32> {
                 }
             }
         }
+    }
     Ok(count)
 }