perf(git_status): avoid running in bare repos (starship#5581)

* fix: git_status bare repo handling

* perform the git_status bare repo check earlier

* Adjusted test

Author: wjhoward

src/context.rs

@@ -8,6 +8,7 @@ use crate::modules;
 use crate::utils;
 use clap::Parser;
 use gix::{
+    repository::Kind,
     sec::{self as git_sec, trust::DefaultForLevel},
     state as git_state, Repository, ThreadSafeRepository,
 };
@@ -351,6 +352,7 @@ impl<'a> Context<'a> {
                     state: repository.state(),
                     remote,
                     fs_monitor_value_is_true,
+                    kind: repository.kind(),
                 })
             })
     }
@@ -641,6 +643,9 @@ pub struct Repo {
     /// Contains `true` if the value of `core.fsmonitor` is set to `true`.
     /// If not `true`, `fsmonitor` is explicitly disabled in git commands.
     fs_monitor_value_is_true: bool,
+
+    // Kind of repository, work tree or bare
+    pub kind: Kind,
 }
 
 impl Repo {

src/modules/git_status.rs

@@ -34,6 +34,11 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
     // Return None if not in git repository
     let repo = context.get_repo().ok()?;
 
+    if repo.kind.is_bare() {
+        log::debug!("This is a bare repository, git_status is not applicable");
+        return None;
+    }
+
     if let Some(git_status) = git_status_wsl(context, &config) {
         if git_status.is_empty() {
             return None;
@@ -1166,6 +1171,21 @@ mod tests {
         repo_dir.close()
     }
 
+    #[test]
+    fn doesnt_generate_git_status_for_bare_repo() -> io::Result<()> {
+        let repo_dir = fixture_repo(FixtureProvider::GitBare)?;
+
+        create_added(repo_dir.path())?;
+
+        let actual = ModuleRenderer::new("git_status")
+            .path(repo_dir.path())
+            .collect();
+
+        assert_eq!(None, actual);
+
+        repo_dir.close()
+    }
+
     fn ahead(repo_dir: &Path) -> io::Result<()> {
         File::create(repo_dir.join("readme.md"))?.sync_all()?;
 

src/test/mod.rs

@@ -166,6 +166,7 @@ impl<'a> ModuleRenderer<'a> {
 pub enum FixtureProvider {
     Fossil,
     Git,
+    GitBare,
     Hg,
     Pijul,
 }
@@ -229,6 +230,16 @@ pub fn fixture_repo(provider: FixtureProvider) -> io::Result<TempDir> {
 
             Ok(path)
         }
+        FixtureProvider::GitBare => {
+            let path = tempfile::tempdir()?;
+            gix::ThreadSafeRepository::init(
+                &path,
+                gix::create::Kind::Bare,
+                gix::create::Options::default(),
+            )
+            .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?;
+            Ok(path)
+        }
         FixtureProvider::Hg => {
             let path = tempfile::tempdir()?;