feat: improve rust snippets

packages/nvim/config/snippets/rust.snippets

@@ -4,11 +4,23 @@ snippet tests "tests module for unit tests"
 			use super::*;
 
 			#[test]
-			fn it_works() {
-					assert_eq!(1, 1, "Pretty sure 1==1")
+			fn ${1:it_works}() -> Result<()> {
+        ${0}
+        assert_eq!(1, 1, "Pretty sure 1==1")
+
+        Ok(())
 			}
 	}
 
+snippet test "a test"
+  #[test]
+    fn ${1:it_works}() -> Result<()> {
+      ${0}
+      assert_eq!(1, 1, "Pretty sure 1==1")
+
+      Ok(())
+    }
+
 snippet dd "derive macro"
 	#[derive($0)]
 
@@ -40,7 +52,7 @@ snippet do:init:log "init logger"
       .init();
 
 snippet use:anyhow "use anyhow (result.context('foo'))"
-  use anyhow::{Context, Result};
+  use anyhow::{anyhow, Context, Result};
 
 snippet use:default "default use preamble"
   use clap::Parser;
@@ -119,5 +131,36 @@ snippet do:sys "spawn a comamnd (sync)"
       ${0:Ok(())}
   }
 
+snippet do:walk "walk a tree"
+  // Cargo.toml
+  // ignore = "0.4"
+  //
+  use ignore::{overrides::OverrideBuilder, WalkBuilder};
+
+  let mut walker = WalkBuilder::new(&path);
+  walker.standard_filters(true);
+
+  let globs = vec!["*.acl"];
+  if !globs.is_empty() {
+    let mut overrides = OverrideBuilder::new(&path);
+    for glob in globs {
+        overrides.add(glob)?;
+    }
+
+    walker.overrides(overrides.build()?);
+  }
+
+  for entry in walker.build() {
+    match entry {
+      Ok(entry) => {
+        let path = entry.path();
+        if path.is_file() {
+          ${0:todo!()}
+        }
+      },
+      Err(err) => return Err(err).context(format!("Error walking: {}", ${1:&path}.to_string_lossy()))
+    }
+  }
+
 snippet do:anyhow:err "create an anyhow error"
   Err(anyhow!(format!("${0}")));