feat: add warning for protected dirs '.' and '..'

Cargo.toml

@@ -2,7 +2,7 @@
 authors = ["Mustafa <mustafa.moiz125@gmail.com>"]
 edition = "2018"
 name = "renom"
-version = "1.2.0"
+version = "1.3.0"
 description = "A simple program to rename Unreal Engine projects."
 keywords = ["gamedev", "ue4", "ue5", "unreal_engine", "rename"]
 categories = [

src/workflows/rename_project/interactive.rs

@@ -16,13 +16,24 @@ pub fn get_params_from_user() -> Result<Params, String> {
 
 fn get_project_root_from_user() -> Result<PathBuf, String> {
     Text::new("Project root directory path:")
+        .with_validator(validate_project_root_is_not_special)
         .with_validator(validate_project_root_is_dir)
         .with_validator(validate_project_root_contains_project_descriptor)
         .prompt()
         .map(|project_root| PathBuf::from(project_root))
         .map_err(|err| err.to_string())
 }
 
+fn validate_project_root_is_not_special(project_root: &str) -> Result<Validation, CustomUserError> {
+    match project_root {
+        "." => Ok(Validation::Invalid("Provided path '.' is protected".into())),
+        ".." => Ok(Validation::Invalid(
+            "Provided path '..' is protected".into(),
+        )),
+        _ => Ok(Validation::Valid),
+    }
+}
+
 fn validate_project_root_is_dir(project_root: &str) -> Result<Validation, CustomUserError> {
     match PathBuf::from(project_root).is_dir() {
         true => Ok(Validation::Valid),

src/workflows/rename_project/mod.rs

@@ -57,6 +57,7 @@ pub fn rename_project(params: Params) -> Result<(), String> {
 }
 
 fn validate_params(params: &Params) -> Result<(), String> {
+    validate_project_root_is_not_special(&params.project_root)?;
     validate_project_root_is_dir(&params.project_root)?;
     validate_project_root_contains_project_descriptor(&params.project_root)?;
     let project_name = detect_project_name(&params.project_root)?;
@@ -67,6 +68,14 @@ fn validate_params(params: &Params) -> Result<(), String> {
     Ok(())
 }
 
+fn validate_project_root_is_not_special(project_root: &Path) -> Result<(), String> {
+    match project_root {
+        path if path == Path::new(".") => Err("project root cannot be '.'".into()),
+        path if path == Path::new("..") => Err("project root cannot be '..'".into()),
+        _ => Ok(()),
+    }
+}
+
 fn validate_project_root_is_dir(project_root: &Path) -> Result<(), String> {
     match project_root.is_dir() {
         true => Ok(()),