Flock::Cli::Commands::Pack
flock pack [dir] [-o out.flkpack] — bundles a directory of assets (default assets/)
into a single .flkpack archive (deflate-compressed, keyed by relative path). Runs
Flock::PackWriter from the project's Flock checkout (found via the project config's
flock_path), so the CLI needs no compiled Flock itself.
Instance methods
Builds the throwaway Crystal program that crystal eval runs to write the pack.
dest/sz/n are ordinary locals here — notably NOT out, which is a reserved
Crystal keyword and would fail to compile. User-supplied strings (dir, out_path) are
emitted with #inspect so a quote/backslash in them can't break out of the code.