Function forecast_commit_kind

atomic-cli/src/commands/git/parallel.rs:3862–3885

Classify an incoming git commit for the `--dry-run` forecast (SPEC §4.4). `records_present(hash)` reports whether a named original change hash exists locally; callers wire it to `Repository::has_change`.

(
    message: &str,
    is_merge: bool,
    records_present: impl Fn(&str) -> bool,
)

/// `records_present(hash)` reports whether a named original change hash exists
/// locally; callers wire it to `Repository::has_change`.
pub(crate) fn forecast_commit_kind(
    message: &str,
    is_merge: bool,
    records_present: impl Fn(&str) -> bool,
) -> ForecastKind {
    if is_merge {
        return ForecastKind::Merge;
    }
    match parse_atomic_changes_trailer(message) {
        Some(hashes) => {
            if hashes.iter().all(|h| records_present(h)) {
                ForecastKind::SquashInsertable {
                    count: hashes.len(),
                    pr: parse_pr_number(message),
                }
            } else {
                ForecastKind::SquashRecordsMissing {
                    count: hashes.len(),
                }
            }
        }
        None => ForecastKind::Normal,
    }
}

/// Remove change refs a failed squash-insert added to `view`, newest first, so
/// a divergent or partial insert leaves the shared view exactly as it was