fix search paths

crates/vestal/src/main.rs

@@ -6,12 +6,14 @@ mod link;
 mod bang;
 pub(crate) use self::util::*;
 
-#[derive(Debug)]
+#[derive(Debug, Default)]
 struct Rebuilder {
-    /// Paths visited
-    paths: BTreeSet<Arc<PathBuf>>,
+    /// Search paths
+    paths:   BTreeSet<Arc<PathBuf>>,
     /// All DLLs in scope
-    dlls:  BTreeMap<Arc<str>, Arc<Dll>>,
+    dlls:    BTreeMap<Arc<str>, Arc<Dll>>,
+    /// Paths visited
+    visited: BTreeSet<Arc<PathBuf>>,
 }
 
 #[derive(Debug)]
@@ -53,13 +55,40 @@ struct Call {
 }
 
 impl Rebuilder {
-    fn new (path: &impl AsRef<Path>) -> Usually<Self> {
-        let mut build = Self { paths: Default::default(), dlls: Default::default() };
+    fn new (paths: &[impl AsRef<Path>]) -> Self {
+        Self {
+            paths: paths.iter().map(|x|Arc::new(x.as_ref().into())).collect(),
+            ..Default::default()
+        }
+    }
+    fn load (&mut self, path: &impl AsRef<Path>, recurse: bool) -> Usually<()> {
         let path: Arc<PathBuf> = Arc::from(PathBuf::from(path.as_ref()));
-        build.paths.insert(path.clone());
-        let dll = Dll::new(&Arc::new(PathBuf::from(path.as_ref())), true)?;
-        build.dlls.insert(dll.name.clone(), dll);
-        Ok(build)
+        self.visited.insert(path.clone());
+        let dll = Arc::new(Dll::new(&Arc::new(PathBuf::from(path.as_ref())), true)?);
+        self.dlls.insert(dll.name.clone(), dll.clone());
+        if recurse {
+            for dep in dll.deps_by_library.keys() {
+                if let Some(dep) = self.find(dep, true)? {
+                    println!("{dep:?}");
+                } else {
+                    panic!("not found: {dep:?}");
+                }
+            }
+        }
+        Ok(())
+    }
+    fn find (&self, name: &str, verbose: bool) -> Usually<Option<PathBuf>> {
+        for base in self.paths.iter() {
+            let mut path = base.as_ref().clone();
+            path.push(name.to_lowercase());
+            if verbose {
+                println!("looking for {name} at {path:?}");
+            }
+            if std::fs::exists(&path)? {
+                return Ok(Some(canonicalize(&path)?))
+            }
+        }
+        Ok(None)
     }
 }
 
@@ -67,7 +96,7 @@ impl Dll {
     fn new (
         path: &Arc<PathBuf>,
         verbose: bool
-    ) -> Usually<Arc<Self>> {
+    ) -> Usually<Self> {
         println!("\n(load {BOLD}{path:?}{RESET})");
         let name = path.file_name().expect("no file name");
         let name: Arc<str> = name.to_str().map(Arc::from).expect("non-unicode filename");
@@ -97,7 +126,7 @@ impl Dll {
             &mut calls_by_target,
             true
         )?;
-        Ok(Arc::new(Self {
+        Ok(Self {
             name:  name.clone(),
             path:  path.clone(),
             bang,
@@ -107,7 +136,7 @@ impl Dll {
             deps_by_address: deps_by_address.clone(),
             calls_by_source,
             calls_by_target,
-        }))
+        })
     }
     fn deps (
         pe:              &VecPE,
@@ -315,18 +344,21 @@ fn main () -> Usually<()> {
     let matches = command!()
         .arg(arg!([path] "Path to VST DLL").value_parser(value_parser!(PathBuf)))
         .arg(arg!(-i --inspect "Show info, don't run").required(false))
-        //.arg(arg!(-s --stub <VALUE> "Provide stub import").required(false))
+        //.arg(arg!(-s --stub <VALUE> "Provide a stub import").required(false))
         .get_matches();
     if let Some(path) = matches.get_one::<PathBuf>("path") {
-        let mut vestal = Vestal::default();
-        vestal.search_paths.push(std::env::current_dir()?);
-        vestal.search_paths.push("/home/user/Lab/Cosmo/wineprefix/drive_c/windows/system32".into());
-        for path in vestal.search_paths.iter() {
+        let mut rebuilder = Rebuilder::new(&[
+            std::env::current_dir()?,
+            canonicalize(path.clone().parent().expect("invalid parent path"))?,
+            "/home/user/Lab/Cosmo/wineprefix/drive_c/windows/system32".into(),
+        ]);
+        println!();
+        for path in rebuilder.paths.iter() {
             println!("(search {path:?})")
         }
-        if let Some(path) = vestal.resolve(path.to_str().expect("path must be unicode"))? {
-            let rebuilder = Rebuilder::new(&path)?;
-            //vestal.enter(&path)?;
+        if let Some(path) = rebuilder.find(path.to_str().expect("path must be unicode"), false)? {
+            let mut rebuilder = Rebuilder::default();
+            rebuilder.load(&path, true)?;
         } else {
             panic!("Could not find: {path:?}")
         }