fix(cli): Improve error when args aren't present

crates/typos-cli/src/bin/typos-cli/main.rs

@@ -139,7 +139,12 @@ fn run_type_list(args: &args::Args) -> proc_exit::ExitResult {
 }
 
 fn run_checks(args: &args::Args) -> proc_exit::ExitResult {
-    let global_cwd = std::env::current_dir().to_sysexits()?;
+    let global_cwd = std::env::current_dir()
+        .map_err(|err| {
+            let kind = err.kind();
+            std::io::Error::new(kind, "no current working directory".to_owned())
+        })
+        .to_sysexits()?;
 
     let storage = typos_cli::policy::ConfigStorage::new();
     let mut engine = typos_cli::policy::ConfigEngine::new(&storage);
@@ -162,11 +167,19 @@ fn run_checks(args: &args::Args) -> proc_exit::ExitResult {
         } else if path.is_file() {
             let mut cwd = path
                 .canonicalize()
+                .map_err(|err| {
+                    let kind = err.kind();
+                    std::io::Error::new(kind, format!("argument `{}` is not found", path.display()))
+                })
                 .with_code(proc_exit::sysexits::USAGE_ERR)?;
             cwd.pop();
             cwd
         } else {
             path.canonicalize()
+                .map_err(|err| {
+                    let kind = err.kind();
+                    std::io::Error::new(kind, format!("argument `{}` is not found", path.display()))
+                })
                 .with_code(proc_exit::sysexits::USAGE_ERR)?
         };
 

crates/typos-cli/tests/cmd/missing-arg.toml

@@ -4,5 +4,5 @@ status.code = 64
 stdin = ""
 # stdout doesn't have stable order
 stderr = """
-No such file or directory (os error 2)
+argument `foo` is not found
 """