fix(utils): fix resources map becomes directory (#10293)

* fix(utils): fix resources map becomes directory

closes #10187

Fixes the behavior of mapped resources generating extra directory, for example:
`"../resources/user.json": "resources/user.json"` generates this resource `resources/user.json/user.json`
where it should generate `resources/user.json`

This PR includes a refactor of the Iterator implementation which splits it into more scoped functions and relis on recursing instead of a loop which makes the code a lot more readable and easier to maintain.

* clippy

* cover more cases

* clippy

* fix glob into directory, not resolving target correctly

* return error when resource origin path doesn't exist

* fix resources example build

* Update .changes/resources-map-becoming-dirs.md

---------

Co-authored-by: Lucas Nogueira <lucas@tauri.app>

Author: amrbashir

.changes/resources-map-becoming-dirs.md

@@ -0,0 +1,5 @@
+---
+"tauri-utils": "patch:bug"
+---
+
+Fix `ResourcePaths` iterator returning an unexpected result for mapped resources, for example `"../resources/user.json": "resources/user.json"` generates this resource `resources/user.json/user.json` where it should generate just `resources/user.json`.

Cargo.lock

@@ -47,6 +47,10 @@ serde-untagged = "0.1"
 [target."cfg(target_os = \"macos\")".dependencies]
 swift-rs = { version = "1.0.6", optional = true, features = [ "build" ] }
 
+[dev-dependencies]
+getrandom = { version = "0.2", features = [ "std" ] }
+serial_test = "3.1"
+
 [features]
 build = [
   "proc-macro2",

core/tauri-utils/Cargo.toml

@@ -372,6 +372,10 @@ pub enum Error {
   #[cfg(feature = "resources")]
   #[error("could not walk directory `{0}`, try changing `allow_walk` to true on the `ResourcePaths` constructor.")]
   NotAllowedToWalkDir(std::path::PathBuf),
+  /// Resourece path doesn't exist
+  #[cfg(feature = "resources")]
+  #[error("resource path `{0}` doesn't exist")]
+  ResourcePathNotFound(std::path::PathBuf),
 }
 
 /// Reconstructs a path from its components using the platform separator then converts it to String and removes UNC prefixes on Windows if it exists.