Function post_update_binary

src/update_cmd.rs:219–224

The binary to re-exec for `post-update`: the freshly installed one when the upgrade reported where it landed, otherwise the usual resolution. Never `which_tracedecay()` alone — its current-exe-first order can point at the OLD binary (e.g. a stale Homebrew keg) right after an upgrade.

(installed: Option<&Path>)

/// Never `which_tracedecay()` alone — its current-exe-first order can point
/// at the OLD binary (e.g. a stale Homebrew keg) right after an upgrade.
fn post_update_binary(installed: Option<&Path>) -> tracedecay::errors::Result<String> {
    match installed.filter(|path| path.exists()) {
        Some(path) => Ok(path.to_string_lossy().into_owned()),
        None => tracedecay_bin_on_path(),
    }
}

fn run_post_update_subcommand(
    no_heal: bool,