Click subcommand recursive help output example

click_help_all.py

@click.group(invoke_without_command=True, no_args_is_help=True)
@click.version_option()
@click.help_option()
@click.option('--help-all', is_flag=True, help='Show help for all subcommands.')
@click.pass_context
def yourcommand(ctx, help_all):
    """This group will print all help pages for subcommands."""
    if help_all:
        print(yourcommand.get_help(ctx))

        def help_recurse(group, ctx):
            for scmd in group.list_commands(ctx):
                cmd = group.get_command(ctx, scmd)
                nctx = click.Context(cmd, ctx, scmd)
                if isinstance(cmd, click.Group):
                    help_recurse(cmd, nctx)
                else:
                    print()
                    print(cmd.get_help(nctx))

        help_recurse(yourcommand, ctx)