The "tarball" command:

Usage: fossil tarball VERSION OUTPUTFILE [OPTIONS]

Generate a compressed tarball for a specified version.  If the --name
option is used, its argument becomes the name of the top-level directory
in the resulting tarball.  If --name is omitted, the top-level directory
name is derived from the project name, the check-in date and time, and
the artifact ID of the check-in.

The GLOBLIST argument to --exclude and --include can be a comma-separated
list of glob patterns, where each glob pattern may optionally be enclosed
in "..." or '...' so that it may contain commas.  If a file matches both
--include and --exclude then it is excluded.

Options:
  -X|--exclude GLOBLIST   Comma-separated list of GLOBs of files to exclude
  --include GLOBLIST      Comma-separated list of GLOBs of files to include
  --name DIRECTORYNAME    The name of the top-level directory in the archive
  -R REPOSITORY           Specify a Fossil repository