sh/uci.sh

   1 #!/bin/sh
   2 # Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
   3 # Copyright (C) 2006-2008 OpenWrt.org
   4
   5 # newline
   6 N="
   7 "
   8
   9 _C=0
  10 NO_EXPORT=1
  11 LOAD_STATE=1
  12 LIST_SEP=" "
  13
  14 hotplug_dev() {
  15         env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net
  16 }
  17
  18 append() {
  19         local var="$1"
  20         local value="$2"
  21         local sep="${3:- }"
  22
  23         eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
  24 }
  25
  26 list_contains() {
  27         local var="$1"
  28         local str="$2"
  29         local val
  30
  31         eval "val=\" \${$var} \""
  32         [ "${val%% $str *}" != "$val" ]
  33 }
  34
  35 list_remove() {
  36         local var="$1"
  37         local remove="$2"
  38         local val
  39
  40         eval "val=\" \${$var} \""
  41         val1="${val%% $remove *}"
  42         [ "$val1" = "$val" ] && return
  43         val2="${val##* $remove }"
  44         [ "$val2" = "$val" ] && return
  45         val="${val1## } ${val2%% }"
  46         val="${val%% }"
  47         eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\""
  48 }
  49
  50 config_load() {
  51         [ -n "$IPKG_INSTROOT" ] && return 0
  52         uci_load "$@"
  53 }
  54
  55 reset_cb() {
  56         config_cb() { return 0; }
  57         option_cb() { return 0; }
  58         list_cb() { return 0; }
  59 }
  60 reset_cb
  61
  62 package() {
  63         return 0
  64 }
  65
  66 config () {
  67         local cfgtype="$1"
  68         local name="$2"
  69
  70         export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
  71         name="${name:-cfg$CONFIG_NUM_SECTIONS}"
  72         append CONFIG_SECTIONS "$name"
  73         [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
  74         export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
  75         export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
  76 }
  77
  78 option () {
  79         local varname="$1"; shift
  80         local value="$*"
  81
  82         export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
  83         [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
  84 }
  85
  86 list() {
  87         local varname="$1"; shift
  88         local value="$*"
  89         local len
  90
  91         config_get len "$CONFIG_SECTION" "${varname}_LENGTH"
  92         len="$((${len:-0} + 1))"
  93         config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value"
  94         config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len"
  95         append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP"
  96         list_cb "$varname" "$*"
  97 }
  98
  99 config_unset() {
 100         config_set "$1" "$2" ""
 101 }
 102
 103 config_clear() {
 104         local SECTION="$1"
 105         local oldvar
 106
 107         list_remove CONFIG_SECTIONS "$SECTION"
 108         export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
 109
 110         for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
 111                 sed -e 's/\(.*\)=.*$/\1/'` ; do
 112                 unset $oldvar
 113         done
 114 }
 115
 116 config_get() {
 117         case "$3" in
 118                 "") eval "echo \"\${CONFIG_${1}_${2}}\"";;
 119                 *)  eval "export ${NO_EXPORT:+-n} -- \"$1=\${CONFIG_${2}_${3}}\"";;
 120         esac
 121 }
 122
 123 # config_get_bool <variable> <section> <option> [<default>]
 124 config_get_bool() {
 125         local _tmp
 126         config_get "_tmp" "$2" "$3"
 127         case "$_tmp" in
 128                 1|on|true|enabled) export ${NO_EXPORT:+-n} "$1=1";;
 129                 0|off|false|disabled) export ${NO_EXPORT:+-n} "$1=0";;
 130                 *) eval "$1=$4";;
 131         esac
 132 }
 133
 134 config_set() {
 135         local section="$1"
 136         local option="$2"
 137         local value="$3"
 138         local old_section="$CONFIG_SECTION"
 139
 140         CONFIG_SECTION="$section"
 141         option "$option" "$value"
 142         CONFIG_SECTION="$old_section"
 143 }
 144
 145 config_foreach() {
 146         local function="$1"
 147         [ "$#" -ge 1 ] && shift
 148         local type="$1"
 149         [ "$#" -ge 1 ] && shift
 150         local section cfgtype
 151
 152         [ -z "$CONFIG_SECTIONS" ] && return 0
 153         for section in ${CONFIG_SECTIONS}; do
 154                 config_get cfgtype "$section" TYPE
 155                 [ -n "$type" -a "x$cfgtype" != "x$type" ] && continue
 156                 eval "$function \"\$section\" \"\$@\""
 157         done
 158 }
 159
 160 config_list_foreach() {
 161         [ "$#" -ge 3 ] || return 0
 162         local section="$1"; shift
 163         local option="$1"; shift
 164         local function="$1"; shift
 165         local val
 166         local len
 167         local c=1
 168
 169         config_get len "${section}" "${option}_LENGTH"
 170         [ -z "$len" ] && return 0
 171         while [ $c -le "$len" ]; do
 172                 config_get val "${section}" "${option}_ITEM$c"
 173                 eval "$function \"\$val\" \"$@\""
 174                 c="$(($c + 1))"
 175         done
 176 }
 177
 178