dbg-main.sh

# -*- shell-script -*-
#   Copyright (C) 2008, 2009, 2010, 2011, 2023-2024
#   Rocky Bernstein <rocky@gnu.org>
#
#   This program is free software; you can redistribute it and/or
#   modify it under the terms of the GNU General Public License as
#   published by the Free Software Foundation; either version 2, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#   General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; see the file COPYING.  If not, write to
#   the Free Software Foundation, 59 Temple Place, Suite 330, Boston,
#   MA 02111 USA.

# Stuff common to zshdb and dbg-trace. Include the rest of options
# processing. Also includes things which have to come before other includes
. "${_Dbg_libdir}"/dbg-pre.sh

# All debugger lib code has to come before debugger command code.
typeset _Dbg_file
for _Dbg_file in "${_Dbg_libdir}"/lib/*.sh "${_Dbg_libdir}"/command/*.sh ; do
    source "$_Dbg_file"
done

unsetopt localtraps
set -o DEBUG_BEFORE_CMD

# Have we already specified where to read debugger input from?
if [[ -n "$DBG_INPUT" ]] ; then
    _Dbg_do_source "$DBG_INPUT"
    _Dbg_no_nx=1
fi

if [[ -z "$_Dbg_tty" ]]; then
    _Dbg_tty=$(tty)
    [[ $_Dbg_tty == 'not a tty' ]] && unset _Dbg_tty
fi
[[ -n "$_Dbg_tty" ]] && _Dbg_do_set inferior-tty "$_Dbg_tty"

# Run the user's debugger startup file. This has to come
# *after* setting up the tty since _Dbg_do_set inferior-tty
# smashes the current tty.
typeset _Dbg_startup_cmdfile=${HOME:-~}/.${_Dbg_debugger_name}rc
if (( 0 == _Dbg_o_nx)) && [[ -r "$_Dbg_startup_cmdfile" ]] ; then
    _Dbg_do_source "$_Dbg_startup_cmdfile"
fi

# _Dbg_DEBUGGER_LEVEL is the number of times we are nested inside a debugger
# by virtue of running "debug" for example.
if [[ -z "${_Dbg_DEBUGGER_LEVEL}" ]] ; then
    typeset -xi _Dbg_DEBUGGER_LEVEL=1
fi

if ((_Dbg_history_save)) ; then
    history -ap "$_Dbg_histfile" "$_Dbg_history_size"
fi

for source_file in "${_Dbg_o_init_files[@]}" "$DBG_RESTART_FILE";  do
    if [[ -n "$source_file" ]] ; then
        if [[ -r "$source_file" ]] && [[ -f "$source_file" ]] ; then
            source "$source_file"
        else
            _Dbg_errmsg "Unable to read shell script: ${source_file}"
        fi
    fi
done