429 lines
12 KiB
Bash
Executable File
429 lines
12 KiB
Bash
Executable File
#!/bin/sh
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#-
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# Copyright (c) 2012 Ron McDowell
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# Copyright (c) 2012-2014 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ INCLUDES
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# When common.subr is included, it automatically scans "$@" for `-d' and/or
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# `-D file' arguments to conditionally enable debugging. Similarly, when
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# dialog.subr is included, it automatically scans "$@" for `-X' and/or `-S'.
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# To prevent this scanning from becoming confused by extra options, define
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# any/all extra arguments to use in the optstring to getopts when scanning
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# for dedicated options such as those described.
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#
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# NOTE: This needs to be declared before including `common.subr'.
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# NOTE: You really only need to list flags that require an argument as unknown
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# flags are silently accepted unless they take an argument (in which case
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# the following argument will terminate option processing unless it looks
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# like a flag).
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#
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GETOPTS_EXTRA="f:"
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BSDCFG_SHARE="/usr/share/bsdconfig"
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. $BSDCFG_SHARE/common.subr || exit 1
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f_dprintf "%s: loading includes..." "$0"
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f_include $BSDCFG_SHARE/dialog.subr
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f_include $BSDCFG_SHARE/mustberoot.subr
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f_include $BSDCFG_SHARE/strings.subr
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BSDCFG_LIBE="/usr/libexec/bsdconfig"
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f_include_lang $BSDCFG_LIBE/include/messages.subr
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BSDCONFIG_HELPFILE=$BSDCFG_LIBE/include/bsdconfig.hlp
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USAGE_HELPFILE=$BSDCFG_LIBE/include/usage.hlp
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############################################################ CONFIGURATION
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#
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# Alternate `local' libexec directory for add-on modules (e.g., from ports)
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#
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BSDCFG_LOCAL_LIBE="/usr/local/libexec/bsdconfig"
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############################################################ FUNCTIONS
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# usage
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#
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# display usage and exit
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#
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usage()
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{
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local index="INDEX"
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local cmd_list # Calculated below
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cd $BSDCFG_LIBE
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# No need to preserve CWD (headed toward exit)
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# Test for language-specific indices
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f_quietly ls */"$index.${LANG:-$LC_ALL}" &&
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index="$index.${LANG:-$LC_ALL}"
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cmd_list=$(
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awk '/^menu_selection="/ {
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sub(/\|.*/, "")
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sub(/^menu_selection="/, "")
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print
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}' */$index | sort
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)
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local alt_cmd_list # Calculated below (if $BSDCFG_LOCAL_LIBE exists)
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if f_quietly cd $BSDCFG_LOCAL_LIBE; then
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# No need to preserve CWD (headed toward exit)
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# Test for language-specific indices
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f_quietly ls */"$index.${LANG:-$LC_ALL}" &&
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index="$index.${LANG:-$LC_ALL}"
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alt_cmd_list=$(
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awk '/^menu_selection="/ {
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sub(/\|.*/, "")
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sub(/^menu_selection="/, "")
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print
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}' */$index 2> /dev/null | sort
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)
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# Conflate lists, removing duplicates
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cmd_list=$( printf "%s\n%s\n" \
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"$cmd_list" "$alt_cmd_list" | sort -u )
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fi
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#
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# Determine the longest command-length (in characters)
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#
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local longest_cmd
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longest_cmd=$( echo "$cmd_list" | f_longest_line_length )
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f_dprintf "longest_cmd=[%s]" "$longest_cmd"
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#
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# Determine the maximum width of terminal/console
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#
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local max_size="$( stty size 2> /dev/null )"
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: ${max_size:="24 80"}
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local max_width="${max_size#*[$IFS]}"
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f_dprintf "max_width=[%s]" "$max_width"
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#
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# Using the longest command-length as the width of a single column,
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# determine if we can use more than one column to display commands.
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#
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local x=$longest_cmd ncols=1
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x=$(( $x + 8 )) # Accommodate leading tab character
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x=$(( $x + 3 + $longest_cmd )) # Preload end of next column
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while [ $x -lt $max_width ]; do
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ncols=$(( $ncols + 1 ))
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x=$(( $x + 3 + $longest_cmd ))
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done
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f_dprintf "ncols=[%u] x=[%u]" $ncols $x
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#
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# Re-format the command-list into multiple columns
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#
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cmd_list=$( eval "$( echo "$cmd_list" |
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awk -v ncols=$ncols -v size=$longest_cmd '
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BEGIN {
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n = 0
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row_item[1] = ""
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}
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function print_row()
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{
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fmt = "printf \"\\t%-" size "s"
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for (i = 1; i < cur_col; i++)
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fmt = fmt " %-" size "s"
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fmt = fmt "\\n\""
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printf "%s", fmt
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for (i = 1; i <= cur_col; i++)
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printf " \"%s\"", row_item[i]
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print ""
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}
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{
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n++
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cur_col = (( n - 1 ) % ncols ) + 1
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printf "f_dprintf \"row_item[%u]=[%%s]\" \"%s\"\n",
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cur_col, $0
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row_item[cur_col] = $0
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if ( cur_col == ncols ) print_row()
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}
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END {
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if ( cur_col < ncols ) print_row()
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}' )"
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)
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f_usage $BSDCFG_LIBE/USAGE \
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"PROGRAM_NAME" "$pgm" \
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"COMMAND_LIST" "$cmd_list"
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# Never reached
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}
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# dialog_menu_main
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#
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# Display the dialog(1)-based application main menu.
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#
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dialog_menu_main()
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{
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local title="$DIALOG_TITLE"
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local btitle="$DIALOG_BACKTITLE"
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local prompt="$msg_menu_text"
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local menu_list="
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'X' '$msg_exit' '$msg_exit_bsdconfig'
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'1' '$msg_usage' '$msg_quick_start_how_to_use_this_menu_system'
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" # END-QUOTE
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local defaultitem= # Calculated below
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local hline=
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#
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# Pick up the base modules (directories named `[0-9][0-9][0-9].*')
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#
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local menuitem menu_title menu_help menu_selection index=2
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for menuitem in $( cd $BSDCFG_LIBE && ls -d [0-9][0-9][0-9].* ); do
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[ -f "$BSDCFG_LIBE/$menuitem/INDEX" ] || continue
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[ $index -lt ${#DIALOG_MENU_TAGS} ] || break
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menu_program= menu_title= menu_help=
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f_include_lang $BSDCFG_LIBE/$menuitem/INDEX
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[ "$menu_program" ] || continue
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case "$menu_program" in
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/*) : already fully qualified ;;
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*) menu_program="$menuitem/$menu_program"
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esac
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f_substr -v tag "$DIALOG_MENU_TAGS" $index 1
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setvar "menu_program$tag" "$menu_program"
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f_shell_escape "$menu_title" menu_title
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f_shell_escape "$menu_help" menu_help
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menu_list="$menu_list '$tag' '$menu_title' '$menu_help'"
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index=$(( $index + 1 ))
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done
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#
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# Process the `local' libexec sources.
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#
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# Whereas modules in $BSDCFG_LIBE must be named [0-9][0-9][0-9].*
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# modules in $BSDCFG_LOCAL_LIBE should NOT be named this way (making it
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# more practical for port-maintainers).
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#
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# This also has the fortunate side-effect of making the de-duplication
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# effort rather simple (because so-called `base' modules must be named
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# differently than add-on modules).
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#
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local separator_added=
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for menuitem in $( cd "$BSDCFG_LOCAL_LIBE" 2> /dev/null && ls -d * )
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do
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# Skip the module if it looks like a `base' module
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case "$menuitem" in [0-9][0-9][0-9].*) continue;; esac
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[ -f "$BSDCFG_LOCAL_LIBE/$menuitem/INDEX" ] || continue
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[ $index -lt ${#DIALOG_MENU_TAGS} ] || break
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menu_program= menu_title= menu_help=
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f_include_lang $BSDCFG_LOCAL_LIBE/$menuitem/INDEX || continue
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[ "$menu_program" ] || continue
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if [ ! "$separator_added" ]; then
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menu_list="$menu_list '-' '-' ''"
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separator_added=1
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fi
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case "$menu_program" in
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/*) : already fully qualified ;;
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*) menu_program="$BSDCFG_LOCAL_LIBE/$menuitem/$menu_program"
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esac
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f_substr -v tag "$DIALOG_MENU_TAGS" $index 1
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setvar "menu_program$tag" "$menu_program"
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f_shell_escape "$menu_title" menu_title
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f_shell_escape "$menu_help" menu_help
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menu_list="$menu_list '$tag' '$menu_title' '$menu_help'"
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index=$(( $index + 1 ))
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done
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local height width rows
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eval f_dialog_menu_with_help_size height width rows \
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\"\$title\" \
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\"\$btitle\" \
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\"\$prompt\" \
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\"\$hline\" \
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$menu_list
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# Obtain default-item from previously stored selection
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f_dialog_default_fetch defaultitem
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local menu_choice
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menu_choice=$( eval $DIALOG \
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--clear \
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--title \"\$title\" \
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--backtitle \"\$btitle\" \
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--hline \"\$hline\" \
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--item-help \
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--ok-label \"\$msg_ok\" \
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--cancel-label \"\$msg_exit_bsdconfig\" \
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--help-button \
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--help-label \"\$msg_help\" \
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${USE_XDIALOG:+--help \"\"} \
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--default-item \"\$defaultitem\" \
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--menu \"\$prompt\" \
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$height $width $rows \
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$menu_list \
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2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
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)
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local retval=$?
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f_dialog_data_sanitize menu_choice
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f_dialog_menutag_store "$menu_choice"
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# Only update default-item on success
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[ $retval -eq $DIALOG_OK ] && f_dialog_default_store "$menu_choice"
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return $retval
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}
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############################################################ MAIN
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#
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# If $0 is not "bsdconfig", interpret it either as a keyword to a menuitem or
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# as a valid resword (see script.subr for additional details about reswords).
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#
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if [ "$pgm" != "bsdconfig" ]; then
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if indexfile=$( f_index_file "$pgm" ) &&
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cmd=$( f_index_menusel_command "$indexfile" "$pgm" )
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then
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f_dprintf "pgm=[%s] cmd=[%s] *=[%s]" "$pgm" "$cmd" "$*"
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exec "$cmd" "$@" || exit 1
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else
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f_include $BSDCFG_SHARE/script.subr
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for resword in $RESWORDS; do
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[ "$pgm" = "$resword" ] || continue
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# Found a match
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f_dprintf "pgm=[%s] A valid resWord!" "$pgm"
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f_dispatch $resword $resword "$@"
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exit $?
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done
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fi
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fi
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#
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# Process command-line arguments
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#
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scripts_loaded=0
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while getopts f:h$GETOPTS_STDARGS flag; do
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case "$flag" in
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f) [ $scripts_loaded -eq 0 ] && f_include $BSDCFG_SHARE/script.subr
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f_script_load "$OPTARG"
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scripts_loaded=$(( $scripts_loaded + 1 )) ;;
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h|\?) usage ;;
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esac
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done
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shift $(( $OPTIND - 1 ))
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# If we've loaded any scripts, do not continue any further
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[ $scripts_loaded -gt 0 ] && exit
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#
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# Initialize
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#
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f_dialog_title "$msg_main_menu"
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[ "$SECURE" ] && f_mustberoot_init
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# Incorporate rc-file if it exists
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[ -f "$HOME/.bsdconfigrc" ] && f_include "$HOME/.bsdconfigrc"
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#
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# If a non-option argument was passed, process it as a menuitem selection...
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#
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if [ "$1" ]; then
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#
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# ...unless it's a long-option for usage.
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#
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case "$1" in -help|--help|-\?)
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usage
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# Not reached
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esac
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#
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# Find the INDEX (possibly i18n) claiming this keyword and get the
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# command to execute from the menu_selection line.
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#
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if ! { indexfile=$( f_index_file "$1" ) &&
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cmd=$( f_index_menusel_command "$indexfile" "$1" )
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}; then
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# no matches, display usage (which shows valid keywords)
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f_err "%s: %s: $msg_not_found\n" "$pgm" "$1"
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usage
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# Not reached
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fi
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f_dprintf "cmd=[%s] *=[%s]" "$cmd" "$*"
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shift
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exec $cmd ${USE_XDIALOG:+-X} "$@" || exit 1
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# Not reached
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fi
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#
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# Launch application main menu
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#
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while :; do
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dialog_menu_main
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retval=$?
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f_dialog_menutag_fetch mtag
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f_dprintf "retval=%u mtag=[%s]" $retval "$mtag"
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if [ $retval -eq $DIALOG_HELP ]; then
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f_show_help "$BSDCONFIG_HELPFILE"
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continue
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elif [ $retval -ne $DIALOG_OK ]; then
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f_die
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fi
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case "$mtag" in
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X) break ;;
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1) # Usage
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f_show_help "$USAGE_HELPFILE"
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continue
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esac
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# Anything else is a dynamically loaded menuitem
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f_getvar menu_program$mtag menu_program
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case "$menu_program" in
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/*) cmd="$menu_program" ;;
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*) cmd="$BSDCFG_LIBE/$menu_program"
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esac
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f_dprintf "cmd=[%s]" "$cmd"
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$cmd ${USE_XDIALOG:+-X}
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done
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exit $SUCCESS
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################################################################################
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# END
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################################################################################
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