allow run spellchecker via test tidy --extra-checks=spellcheck

Author: klensy

src/tools/tidy/src/ext_tool_checks.rs

@@ -72,6 +72,8 @@ fn check_impl(
     let shell_lint = lint_args.contains(&"shell:lint") || shell_all;
     let cpp_all = lint_args.contains(&"cpp");
     let cpp_fmt = lint_args.contains(&"cpp:fmt") || cpp_all;
+    let spellcheck_all = lint_args.contains(&"spellcheck");
+    let spellcheck_fix = lint_args.contains(&"spellcheck:fix");
 
     let mut py_path = None;
 
@@ -244,6 +246,22 @@ fn check_impl(
         shellcheck_runner(&merge_args(&cfg_args, &file_args_shc))?;
     }
 
+    if spellcheck_all || spellcheck_fix {
+        let config_path = root_path.join("typos.toml");
+        let mut args =
+        // sync target files with .github/workflows/ci.yml
+            vec!["-c", config_path.as_os_str().to_str().unwrap(), "./compiler", "./library"];
+
+        if spellcheck_all {
+            eprintln!("spellcheck files");
+            spellcheck_runner(&args)?;
+        } else if spellcheck_fix {
+            eprintln!("spellcheck files and fix");
+            args.push("--write-changes");
+            spellcheck_runner(&args)?;
+        }
+    }
+
     Ok(())
 }
 
@@ -453,6 +471,25 @@ 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(args: &[&str]) -> Result<(), Error> {
+    match Command::new("typos").arg("--version").status() {
+        Ok(_) => (),
+        Err(e) if e.kind() == io::ErrorKind::NotFound => {
+            return Err(Error::MissingReq(
+                "typos",
+                "spellcheck file checks",
+                // sync version with .github/workflows/ci.yml
+                Some("install tool via `cargo install [email protected]`".to_owned()),
+            ));
+        }
+        Err(e) => return Err(e.into()),
+    }
+
+    let status = Command::new("typos").args(args).status()?;
+    if status.success() { Ok(()) } else { Err(Error::FailedCheck("typos")) }
+}
+
 /// Check git for tracked files matching an extension
 fn find_with_extension(
     root_path: &Path,