The "test-th-hook" command:

Usage: fossil test-th-hook TYPE NAME FLAGS

Evaluates the TH1 script configured for the pre-operation (i.e. a command
or web page) "hook" or post-operation "notification".  The results of the
script evaluation, if any, will be printed to the standard output channel.
The NAME argument must be the name of a command or web page; however, it
does not necessarily have to be a command or web page that is normally
recognized by Fossil.  The FLAGS argument will be used to set the value
of the "cmd_flags" and/or "web_flags" TH1 variables, if applicable.  The
TYPE argument must be one of the following:

    cmdhook              Executes the TH1 procedure [command_hook], after
                         setting the TH1 variables "cmd_name", "cmd_args",
                         and "cmd_flags" to appropriate values.

    cmdnotify            Executes the TH1 procedure [command_notify], after
                         setting the TH1 variables "cmd_name", "cmd_args",
                         and "cmd_flags" to appropriate values.

    webhook              Executes the TH1 procedure [webpage_hook], after
                         setting the TH1 variables "web_name", "web_args",
                         and "web_flags" to appropriate values.

    webnotify            Executes the TH1 procedure [webpage_notify], after
                         setting the TH1 variables "web_name", "web_args",
                         and "web_flags" to appropriate values.

Options:

    --cgi                Include a CGI response header in the output
    --http               Include an HTTP response header in the output
    --th-trace           Trace TH1 execution (for debugging purposes)