fix crash running outside of git repo

README.md

@@ -58,7 +58,6 @@ GITUI_LOGGING=true gitui
 
 # todo for 0.1 (first release)
 
-* [ ] fix: run in non-git folder -> crash
 * [ ] (un)staging selected hunks
 * [ ] publish as homebrew-tap
 

asyncgit/src/lib.rs

@@ -14,6 +14,7 @@ pub use crate::{
     sync::{
         diff::{Diff, DiffLine, DiffLineType},
         status::{StatusItem, StatusItemType},
+        utils::is_repo,
     },
 };
 use std::{

asyncgit/src/sync/utils.rs

@@ -4,6 +4,16 @@ use git2::{IndexAddOption, Repository, RepositoryOpenFlags};
 use scopetime::scope_time;
 use std::path::Path;
 
+///
+pub fn is_repo(repo_path: &str) -> bool {
+    Repository::open_ext(
+        repo_path,
+        RepositoryOpenFlags::empty(),
+        Vec::<&Path>::new(),
+    )
+    .is_ok()
+}
+
 ///
 pub fn repo(repo_path: &str) -> Repository {
     let repo = Repository::open_ext(

src/main.rs

@@ -40,6 +40,11 @@ static TICK_INTERVAL: Duration = Duration::from_secs(5);
 fn main() -> Result<()> {
     setup_logging();
 
+    if invalid_path() {
+        eprintln!("invalid git path");
+        return Ok(());
+    }
+
     enable_raw_mode()?;
     io::stdout().execute(EnterAlternateScreen)?;
     defer! {
@@ -87,6 +92,10 @@ fn main() -> Result<()> {
     Ok(())
 }
 
+fn invalid_path() -> bool {
+    !asyncgit::is_repo(asyncgit::CWD)
+}
+
 fn select_event(
     rx_input: &Receiver<Vec<QueueEvent>>,
     rx_git: &Receiver<AsyncNotification>,