refactor: allow passing OsStr as-is to exec_cmd (#2997)

src/context.rs

@@ -9,7 +9,8 @@ use git2::{ErrorCode::UnbornBranch, Repository, RepositoryState};
 use once_cell::sync::OnceCell;
 use std::collections::{HashMap, HashSet};
 use std::env;
-use std::ffi::OsString;
+use std::ffi::{OsStr, OsString};
+use std::fmt::Debug;
 use std::fs;
 use std::path::{Path, PathBuf};
 use std::string::String;
@@ -266,18 +267,19 @@ impl<'a> Context<'a> {
 
     /// Execute a command and return the output on stdout and stderr if successful
     #[inline]
-    pub fn exec_cmd(&self, cmd: &str, args: &[&str]) -> Option<CommandOutput> {
+    pub fn exec_cmd<T: AsRef<OsStr> + Debug, U: AsRef<OsStr> + Debug>(
+        &self,
+        cmd: T,
+        args: &[U],
+    ) -> Option<CommandOutput> {
         #[cfg(test)]
         {
-            let command = match args.len() {
-                0 => cmd.to_owned(),
-                _ => format!("{} {}", cmd, args.join(" ")),
-            };
+            let command = crate::utils::display_command(&cmd, args);
             if let Some(output) = self.cmd.get(command.as_str()) {
                 return output.clone();
             }
         }
-        exec_cmd(cmd, args, self.cmd_timeout)
+        exec_cmd(&cmd, args, self.cmd_timeout)
     }
 }