tidy: run typos check in src root, not current dir

Author: lolbinarycat

src/tools/tidy/src/extra_checks/mod.rs

@@ -298,7 +298,7 @@ fn check_impl(
         } else {
             eprintln!("spellcheck files");
         }
-        spellcheck_runner(&outdir, &cargo, &args)?;
+        spellcheck_runner(root_path, &outdir, &cargo, &args)?;
     }
 
     if js_lint || js_typecheck {
@@ -581,11 +581,16 @@ fn shellcheck_runner(args: &[&OsStr]) -> Result<(), Error> {
     if status.success() { Ok(()) } else { Err(Error::FailedCheck("shellcheck")) }
 }
 
-/// Check that spellchecker is installed then run it at the given path
-fn spellcheck_runner(outdir: &Path, cargo: &Path, args: &[&str]) -> Result<(), Error> {
+/// Ensure that spellchecker is installed then run it at the given path
+fn spellcheck_runner(
+    src_root: &Path,
+    outdir: &Path,
+    cargo: &Path,
+    args: &[&str],
+) -> Result<(), Error> {
     let bin_path = ensure_version_or_cargo_install(outdir, cargo, "typos-cli", "typos", "1.34.0")?;
 
-    match Command::new(bin_path).args(args).status() {
+    match Command::new(bin_path).current_dir(src_root).args(args).status() {
         Ok(status) => {
             if status.success() {
                 Ok(())