fix(nix): resolve linter paths under bazel run

src/nix-style-linter/lib.rs

@@ -66,7 +66,8 @@ pub fn run(
     let mut found_tool_errors = false;
 
     for path in paths {
-        match collect_nix_files(path) {
+        let path = resolve_workspace_path(path);
+        match collect_nix_files(&path) {
             Ok(files) => {
                 for file in files {
                     match lint_file(&file) {
@@ -103,6 +104,18 @@ pub fn run(
     }
 }
 
+fn resolve_workspace_path(path: &Path) -> PathBuf {
+    if path.is_absolute() {
+        return path.to_path_buf();
+    }
+
+    if let Some(workspace) = std::env::var_os("BUILD_WORKSPACE_DIRECTORY") {
+        return PathBuf::from(workspace).join(path);
+    }
+
+    path.to_path_buf()
+}
+
 pub fn lint_file(path: &Path) -> io::Result<Vec<Diagnostic>> {
     let source = fs::read_to_string(path)?;
     let parse = rnix::Root::parse(&source);