fix(smartlog) smartlog does not panic when run in a non-git directory

git-branchless-smartlog/src/lib.rs

@@ -758,7 +758,13 @@ pub fn smartlog(
         reverse,
     } = options;
 
-    let repo = Repo::from_dir(&git_run_info.working_directory)?;
+    let repo = match Repo::from_dir(&git_run_info.working_directory) {
+        Ok(repo) => repo,
+        Err(err) => {
+            writeln!(effects.get_error_stream(), "{err}",)?;
+            return Ok(Err(ExitCode(1)));
+        }
+    };
     let head_info = repo.get_head_info()?;
     let conn = repo.get_db_conn()?;
     let event_log_db = EventLogDb::new(&conn)?;

git-branchless-smartlog/tests/test_smartlog.rs

@@ -650,6 +650,26 @@ fn test_smartlog_sparse_main_false_head() -> eyre::Result<()> {
     Ok(())
 }
 
+#[cfg(unix)]
+#[test]
+fn test_error_without_panic_on_missing_repo() -> eyre::Result<()> {
+    let git = make_git()?;
+
+    {
+        let (_stdout, stderr) = git.branchless_with_options(
+            "smartlog",
+            &[],
+            &GitRunOptions {
+                expected_exit_code: 1,
+                ..Default::default()
+            },
+        )?;
+        insta::assert_snapshot!(stderr, @"could not open repository: could not find repository from '<repo-path>'; class=Repository (6); code=NotFound (-3)");
+    }
+
+    Ok(())
+}
+
 #[test]
 fn test_smartlog_hidden() -> eyre::Result<()> {
     let git = make_git()?;