Function change_hash_candidates

atomic-cli/src/commands/complete.rs:51–72

Change-hash completion candidates drawn from the change store. Commands that address a change by hash can reference *any* change that exists in the repo, so the candidate source is the change store rather than a single view's log. Returns `(base32_hash, optional_message)` pairs filtered by `prefix` and capped at [`MAX_CHANGE_CANDIDATES`]. Pure over the repository for unit testing.

(
    repo: &Repository,
    prefix: &str,
)

/// filtered by `prefix` and capped at [`MAX_CHANGE_CANDIDATES`]. Pure over the
/// repository for unit testing.
pub(crate) fn change_hash_candidates(
    repo: &Repository,
    prefix: &str,
) -> Vec<(String, Option<String>)> {
    let mut out = Vec::new();
    for result in repo.iter_changes() {
        let Ok(hash) = result else { continue };
        let b32 = hash.to_base32();
        if !prefix.is_empty() && !b32.starts_with(prefix) {
            continue;
        }
        let message = repo
            .load_change(&hash)
            .ok()
            .map(|c| c.hashed.header.message.clone());
        out.push((b32, message));
        if out.len() >= MAX_CHANGE_CANDIDATES {
            break;
        }
    }
    out
}

/// Dynamic completer for view-name arguments.
///