Add project path check (#380)

Co-authored-by: Boppy <no-reply@boppygames.gg>

crates/cli/src/tasks/csharp.rs

@@ -1,33 +1,43 @@
-use duct::cmd;
-use std::path::{Path, PathBuf};
-
-pub(crate) fn build_csharp(project_path: &Path, _build_debug: bool) -> anyhow::Result<PathBuf> {
-    // NOTE: wasi.sdk does not currently optimize release
-
-    let output_path = project_path.join("bin/Release/net7.0/StdbModule.wasm");
-
-    // delete existing wasm file if exists
-    if output_path.exists() {
-        std::fs::remove_file(&output_path)?;
-    }
-
-    // run dotnet publish using cmd macro
-    let result = cmd!("dotnet", "publish", "-c", "Release").dir(project_path).run();
-    match result {
-        Ok(_) => {}
-        Err(error) => {
-            if error.kind() == std::io::ErrorKind::NotFound {
-                anyhow::bail!("Failed to build project. dotnet not found in path. Please install the .NET Core SDK.");
-            } else {
-                anyhow::bail!("Failed to build project. {}", error);
-            }
-        }
-    }
-
-    // check if file exists
-    if !output_path.exists() {
-        anyhow::bail!("Failed to build project");
-    }
-
-    Ok(output_path)
-}
+use anyhow::Context;
+use duct::cmd;
+use std::fs;
+use std::path::{Path, PathBuf};
+
+pub(crate) fn build_csharp(project_path: &Path, _build_debug: bool) -> anyhow::Result<PathBuf> {
+    // NOTE: wasi.sdk does not currently optimize release
+
+    let output_path = project_path.join("bin/Release/net7.0/StdbModule.wasm");
+
+    // delete existing wasm file if exists
+    if output_path.exists() {
+        std::fs::remove_file(&output_path)?;
+    }
+
+    // Ensure the project path exists.
+    fs::metadata(project_path).with_context(|| {
+        format!(
+            "The provided project path '{}' does not exist.",
+            project_path.to_str().unwrap()
+        )
+    })?;
+
+    // run dotnet publish using cmd macro
+    let result = cmd!("dotnet", "publish", "-c", "Release").dir(project_path).run();
+    match result {
+        Ok(_) => {}
+        Err(error) => {
+            if error.kind() == std::io::ErrorKind::NotFound {
+                anyhow::bail!("Failed to build project. dotnet not found in path. Please install the .NET Core SDK.");
+            } else {
+                anyhow::bail!("Failed to build project. {}", error);
+            }
+        }
+    }
+
+    // check if file exists
+    if !output_path.exists() {
+        anyhow::bail!("Failed to build project");
+    }
+
+    Ok(output_path)
+}