Struct FooterDataProvider 

pub struct FooterDataProvider { /* private fields */ }

Matches pi’s FooterDataProvider — provides git branch, extension statuses, and provider count to the Footer on a pull basis.

Owned by the App behind Rc<RefCell<>>. The Footer holds a shared Rc clone and reads data each render cycle instead of receiving push updates from the App.

Git branch resolution:

1. Walk up from cwd looking for .git
2. If .git is a file → worktree: parse gitdir: path, find HEAD
3. If .git is a directory → regular repo: find HEAD
4. Read HEAD file; if ref: refs/heads/.invalid → fall back to git
5. Otherwise treat as detached HEAD

Implementations

impl FooterDataProvider

pub fn new(cwd: PathBuf) -> Self

pub fn get_git_branch(&self) -> Option<&str>

pub fn refresh_git_branch(&mut self)

Re-resolve git branch from disk (e.g. after a known branch switch).

pub fn set_cwd(&mut self, cwd: PathBuf)

pub fn get_extension_statuses(&self) -> &BTreeMap<String, String>

pub fn set_extension_status(&mut self, key: &str, text: Option<&str>)

pub fn clear_extension_statuses(&mut self)

pub fn get_available_provider_count(&self) -> usize

pub fn set_available_provider_count(&mut self, count: usize)