script.subr revision 249780
1if [ ! "$_SCRIPT_SUBR" ]; then _SCRIPT_SUBR=1 2# 3# Copyright (c) 2012-2013 Devin Teske 4# All Rights Reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD: head/usr.sbin/bsdconfig/share/script.subr 249780 2013-04-22 21:11:27Z dteske $ 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." script.subr 34f_include $BSDCFG_SHARE/device.subr 35f_include $BSDCFG_SHARE/variable.subr 36f_include $BSDCFG_SHARE/media/any.subr 37f_include $BSDCFG_SHARE/media/tcpip.subr 38 39############################################################ GLOBALS 40 41RESWORDS= 42 43############################################################ FUNCTIONS 44 45# f_resword_new $resword $function 46# 47# Create a new `reserved' word for scripting purposes. Reswords call pre- 48# defined functions but differ from those functions in the following ways: 49# 50# + Reswords do not take arguments but instead get all their data from 51# the environment variable namespace. 52# + Unless noError is set (must be non-NULL), if calling the resword 53# results in failure, the application will terminate prematurely. 54# + noError is unset after each/every resword is called. 55# 56# Reswords should not be used in bsdconfig itself (hence the name `reserved 57# word') but instead only in scripts loaded through f_script_load()). 58# 59f_resword_new() 60{ 61 local resword="$1" func="$2" 62 [ "$resword" ] || return $FAILURE 63 f_dprintf "script.subr: New resWord %s -> %s" "$resword" "$func" 64 eval $resword\(\){ f_dispatch $func $resword\; } 65 RESWORDS="$RESWORDS${RESWORDS:+ }$resword" 66} 67 68# f_dispatch $func [$resword] 69# 70# Wrapper function used by `reserved words' (reswords) to call other functions. 71# If $noError is set and non-NULL, a failure result from $func is ignored, 72# otherwise the application is prematurely terminated using f_die(). 73# 74# NOTE: $noError is unset after every call. 75# 76f_dispatch() 77{ 78 local func="$1" resword="${2:-$1}" 79 f_dprintf "f_dispatch: calling resword \`%s'" "$resword" 80 eval $func 81 local retval=$? 82 if [ $retval -ne $SUCCESS ]; then 83 local _ignore_this_error 84 f_getvar $VAR_NO_ERROR _ignore_this_error 85 [ "$_ignore_this_error" ] || f_die $retval \ 86 "$msg_command_failed_rest_of_script_aborted" "$resword" 87 fi 88 unset $VAR_NO_ERROR 89} 90 91# f_script_load [$file] 92# 93# Load a script (usually filled with reswords). If $file is missing or NULL, 94# use one of the following instead (in order): 95# 96# $configFile 97# install.cfg 98# /stand/install.fg 99# /tmp/install.cfg 100# 101# Unknown/unregistered reswords will generate sh(1) syntax errors but not cause 102# premature termination. 103# 104# Returns success if a script was loaded and itself returned success. 105# 106f_script_load() 107{ 108 local script="$1" config_file retval=$SUCCESS 109 110 f_dprintf "f_script_load: script=[%s]" "$script" 111 if [ ! "$script" ]; then 112 f_getvar $VAR_CONFIG_FILE config_file 113 for script in \ 114 $config_file \ 115 install.cfg \ 116 /stand/install.cfg \ 117 /tmp/install.cfg \ 118 ; do 119 [ -e "$script" ] && break 120 done 121 fi 122 123 local old_interactive= 124 f_getvar $VAR_NONINTERACTIVE old_interactive # save a copy 125 126 # Hint to others that we're running from a script, should they care 127 setvar $VAR_NONINTERACTIVE yes 128 129 if [ "$script" = "-" ]; then 130 f_dprintf "f_script_load: Loading script from stdin" 131 eval "$( cat )" 132 retval=$? 133 else 134 f_dprintf "f_script_load: Loading script \`%s'" "$script" 135 if [ ! -e "$script" ]; then 136 f_show_msg "$msg_unable_to_open" "$script" 137 return $FAILURE 138 fi 139 . "$script" 140 retval=$? 141 fi 142 143 [ "$old_interactive" ] && 144 setvar $VAR_NONINTERACTIVE "$old_interactive" 145 146 return $retval 147} 148 149############################################################ MAIN 150 151# 152# Reserved words meant for scripting 153# 154f_resword_new deviceRescan f_device_rescan 155f_resword_new dumpVariables f_dump_variables 156f_resword_new loadConfig f_script_load 157f_resword_new mediaClose f_media_close 158f_resword_new mediaGetType f_media_get_type 159f_resword_new mediaOpen f_media_open 160f_resword_new mediaSetCDROM f_media_set_cdrom 161f_resword_new mediaSetDOS f_media_set_dos 162f_resword_new mediaSetFTP f_media_set_ftp 163f_resword_new mediaSetFTPActive f_media_set_ftp_active 164f_resword_new mediaSetFTPPassive f_media_set_ftp_passive 165f_resword_new mediaSetFTPUserPass f_media_set_ftp_userpass 166f_resword_new mediaSetFloppy f_media_set_floppy 167f_resword_new mediaSetHTTP f_media_set_http_proxy 168f_resword_new mediaSetHTTPProxy f_media_set_http_proxy 169f_resword_new mediaSetNFS f_media_set_nfs 170f_resword_new mediaSetUFS f_media_set_ufs 171f_resword_new mediaSetUSB f_media_set_usb 172f_resword_new optionsEditor f_media_options_menu 173f_resword_new tcpMenuSelect f_dialog_menu_select_tcp 174 175f_dprintf "%s: Successfully loaded." script.subr 176 177fi # ! $_SCRIPT_SUBR 178