feat(prune): check for an prune extraneous packages, and skip extract…

…ing valid ones (#200)

Fixes: #149
Fixes: #177

Cargo.toml

@@ -100,6 +100,7 @@ tracing-appender = "0.2.2"
 tracing-subscriber = "0.3.16"
 tsify = "0.4.3"
 url = "2.3.1"
+walkdir = "2.3.2"
 wasm-bindgen = "0.2.84"
 wasm-bindgen-futures = "0.4.34"
 wasm-streams = "0.2.3"

crates/node-maintainer/Cargo.toml

@@ -33,6 +33,7 @@ url = { workspace = true }
 reflink = { workspace = true }
 indicatif = { workspace = true }
 tempfile = { workspace = true }
+walkdir = { workspace = true }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 console_error_panic_hook = { workspace = true }

crates/node-maintainer/src/error.rs

@@ -120,6 +120,11 @@ pub enum NodeMaintainerError {
     #[error("{0}")]
     #[diagnostic(code(node_maintainer::graph_error))]
     GraphValidationError(String),
+
+    #[cfg(not(target_arch = "wasm32"))]
+    #[error(transparent)]
+    #[diagnostic(code(node_maintainer::walkdir_error))]
+    WalkDirError(#[from] walkdir::Error),
 }
 
 impl<T> From<mpsc::TrySendError<T>> for NodeMaintainerError {

crates/node-maintainer/src/graph.rs

@@ -151,10 +151,7 @@ impl Graph {
         }
     }
 
-    pub(crate) fn package_at_path(
-        &self,
-        path: &Path,
-    ) -> Result<Option<Package>, NodeMaintainerError> {
+    pub(crate) fn node_at_path(&self, path: &Path) -> Option<&Node> {
         let mut current = Some(self.root);
         let mut in_nm = true;
         let slash = OsStr::new("/");
@@ -179,9 +176,14 @@ impl Graph {
             }
         }
         if current == Some(self.root) {
-            return Ok(None);
+            None
+        } else {
+            current.map(|idx| &self.inner[idx])
         }
-        Ok(current.map(|idx| self.inner[idx].package.clone()))
+    }
+
+    pub(crate) fn package_at_path(&self, path: &Path) -> Option<Package> {
+        Some(self.node_at_path(path)?.package.clone())
     }
 
     pub(crate) fn find_by_name(
@@ -264,7 +266,7 @@ impl Graph {
         Ok(())
     }
 
-    fn node_lockfile_node(
+    pub(crate) fn node_lockfile_node(
         &self,
         node: NodeIndex,
         is_root: bool,