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# -*- shell-script -*-
# save-restore.sh - Bourne Again Shell Debugger Utility Functions
#
# Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009 Rocky Bernstein
# rocky@gnu.org
#
# bashdb 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.
#
# bashdb 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 bashdb; see the file COPYING. If not, write to the Free Software
# Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
# Does things to after on entry of after an eval to set some debugger
# internal settings
function _Dbg_set_debugger_internal {
IFS="$_Dbg_space_IFS";
PS4='+ dbg (${BASH_SOURCE}:${LINENO}[$BASH_SUBSHELL]): ${FUNCNAME[0]}\n'
}
function _Dbg_restore_user_vars {
IFS="$_Dbg_space_IFS";
set -$_Dbg_old_set_opts
IFS="$_Dbg_old_IFS";
PS4="$_Dbg_old_PS4"
}
# Do things for debugger entry. Set some global debugger variables
# Remove trapping ourselves.
# We assume that we are nested two calls deep from the point of debug
# or signal fault. If this isn't the constant 2, then consider adding
# a parameter to this routine.
function _Dbg_set_debugger_entry {
# Nuke DEBUG trap
trap '' DEBUG
_cur_fn=${FUNCNAME[2]}
let _curline=${BASH_LINENO[1]}
((_curline < 1)) && let _curline=1
_Dbg_old_IFS="$IFS"
_Dbg_old_PS4="$PS4"
_Dbg_frame_last_filename=${BASH_SOURCE[2]:-$_Dbg_bogus_file}
_Dbg_stack_pos=$_Dbg_STACK_TOP
_Dbg_listline=_curline
_Dbg_set_debugger_internal
_Dbg_frame_last_filename=$(_Dbg_resolve_expand_filename "$_Dbg_frame_last_filename")
_cur_filevar="`_Dbg_file2var $_Dbg_frame_last_filename`"
# Read in the journal to pick up variable settings that might have
# been left from a subshell.
_Dbg_source_journal
if (( $_Dbg_QUIT_LEVELS > 0 )) ; then
_Dbg_do_quit $_Dbg_debugged_exit_code
fi
}
function _Dbg_set_to_return_from_debugger {
_Dbg_rc=$?
_Dbg_stop_reason=''
if (( $1 != 0 )) ; then
_Dbg_last_bash_command="$_Dbg_bash_command"
_Dbg_last_lineno="$_curline"
_Dbg_last_source_file="$_Dbg_frame_last_filename"
else
_Dbg_last_lineno=${BASH_LINENO[1]}
_Dbg_last_source_file=${BASH_SOURCE[2]:-$_Dbg_bogus_file}
_Dbg_last_bash_command="**unsaved _bashdb command**"
fi
if (( _Dbg_restore_debug_trap )) ; then
trap '_Dbg_debug_trap_handler 0 "$BASH_COMMAND" "$@"' DEBUG
else
trap - DEBUG
fi
_Dbg_restore_user_vars
}
_Dbg_save_state() {
_Dbg_statefile=$(_Dbg_tempname statefile)
echo "" > $_Dbg_statefile
_Dbg_save_breakpoints
_Dbg_save_actions
_Dbg_save_watchpoints
_Dbg_save_display
_Dbg_save_Dbg_set
echo "unset DBG_RESTART_FILE" >> $_Dbg_statefile
echo "rm $_Dbg_statefile" >> $_Dbg_statefile
export DBG_RESTART_FILE="$_Dbg_statefile"
_Dbg_write_journal "export DBG_RESTART_FILE=\"$_Dbg_statefile\""
}
_Dbg_save_Dbg_set() {
declare -p _Dbg_basename_only >> $_Dbg_statefile
declare -p _Dbg_debug_debugger >> $_Dbg_statefile
declare -p _Dbg_edit >> $_Dbg_statefile
declare -p _Dbg_listsize >> $_Dbg_statefile
declare -p _Dbg_prompt_str >> $_Dbg_statefile
declare -p _Dbg_show_command >> $_Dbg_statefile
}
_Dbg_restore_state() {
local statefile=$1
. $1
}
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