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Diffstat (limited to 'package/uci/files/uci-sh/lib/config/uci.sh')
| -rw-r--r-- | package/uci/files/uci-sh/lib/config/uci.sh | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/package/uci/files/uci-sh/lib/config/uci.sh b/package/uci/files/uci-sh/lib/config/uci.sh new file mode 100644 index 0000000000..f584832826 --- /dev/null +++ b/package/uci/files/uci-sh/lib/config/uci.sh @@ -0,0 +1,214 @@ +#!/bin/sh +# Shell script defining macros for manipulating config files +# +# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> +# Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.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 of the License, 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; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +uci_set_default() { + local PACKAGE="$1" + [ -e "/etc/config/$1" ] && return 0 + cat > "/etc/config/$1" +} + +uci_load() { + local cfg + local uci + + _C=0 + export ${NO_EXPORT:+-n} CONFIG_SECTIONS= + export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=0 + export ${NO_EXPORT:+-n} CONFIG_SECTION= + + case "$PACKAGE" in + /*) cfg="$PACKAGE";; + *) + cfg="$UCI_ROOT/etc/config/$PACKAGE" + uci="$UCI_ROOT/tmp/.uci/$PACKAGE" + state="$UCI_ROOT/var/state/$PACKAGE" + ;; + esac + + # no config? + [ -z "$cfg" -o \! -f "$cfg" ] && return 1 + . "$cfg" + + ${CONFIG_SECTION:+config_cb} + + [ -z "$uci" -o \! -f "$uci" ] || . "$uci" + [ -z "$LOAD_STATE" -z "$state" -o \! -f "$state" ] || . "$state" + + return 0 +} + +uci_call_awk() { + local CMD="$*" + awk -f $UCI_ROOT/lib/config/uci.awk -f - <<EOF +BEGIN { + $CMD +} +EOF +} + +uci_do_update() { + local FILENAME="$1" + local UPDATE="$2" + uci_call_awk " + config = read_file(\"$FILENAME\") + $UPDATE + print config +" +} + +uci_add_update() { + local PACKAGE="$1" + local UPDATE="$2" + local PACKAGE_BASE="$(basename "$PACKAGE")" + local UCIFILE + + case "$PACKAGE" in + /*) UCIFILE="$PACKAGE";; + *) + UCIFILE="/tmp/.uci/$PACKAGE_BASE" + mkdir -p "/tmp/.uci" + ;; + esac + + # FIXME: add locking? + echo "$UPDATE" >> "$UCIFILE" +} + +uci_revert_state() { + local PACKAGE="$1" + local CONFIG="$2" + FILE="/var/state/$PACKAGE.$$" + grep -v "^config_set '$CONFIG' " "/var/state/$PAKAGE" > "$FILE" + mv "$FILE" "/var/state/$PACKAGE" +} + +uci_set_state() { + local PACKAGE="$1" + local CONFIG="$2" + local OPTION="$3" + local VALUE="$4" + + [ -z "$VALUE" ] && return 1 + uci_set "/var/state/$PACKAGE" "$CONFIG" "$OPTION" "$VALUE" +} + + +uci_set() { + local PACKAGE="$1" + local CONFIG="$2" + local OPTION="$3" + local VALUE="$4" + + case "$PACKAGE" in + /*) + uci_add_update "$PACKAGE" "config_set '$CONFIG' '$OPTION' '$VALUE'" + ;; + *) + ( # spawn a subshell so you don't mess up the current environment + uci_load "$PACKAGE" + config_get OLDVAL "$CONFIG" "$OPTION" + if [ "x$OLDVAL" != "x$VALUE" ]; then + config_get type "$CONFIG" TYPE + [ -z "$type" ] + fi + ) || uci_add_update "$PACKAGE" "config_set '$CONFIG' '$OPTION' '$VALUE'" + ;; + esac +} + +uci_add() { + local PACKAGE="$1" + local TYPE="$2" + local CONFIG="$3" + + uci_add_update "$PACKAGE" "config '$TYPE' '$CONFIG'" +} + +uci_rename() { + local PACKAGE="$1" + local CONFIG="$2" + local VALUE="$3" + + uci_add_update "$PACKAGE" "config_rename '$CONFIG' '$VALUE'" +} + +uci_remove() { + local PACKAGE="$1" + local CONFIG="$2" + local OPTION="$3" + + if [ -z "$OPTION" ]; then + uci_add_update "$PACKAGE" "config_clear '$CONFIG'" + else + uci_add_update "$PACKAGE" "config_unset '$CONFIG' '$OPTION'" + fi +} + +uci_commit() { + local PACKAGE="$1" + local PACKAGE_BASE="$(basename "$PACKAGE")" + + case "$PACKAGE" in + /*) return 0;; + esac + mkdir -p /tmp/.uci + LOCK=`which lock` || LOCK=: + $LOCK "/tmp/.uci/$PACKAGE_BASE.lock" + [ -f "/tmp/.uci/$PACKAGE_BASE" ] && ( + updatestr="" + + # replace handlers + config() { + append updatestr "config = uci_update_config(config, \"@$2=$1\")" "$N" + } + option() { + append updatestr "config = uci_update_config(config, \"$CONFIG_SECTION.$1=$2\")" "$N" + } + config_rename() { + append updatestr "config = uci_update_config(config, \"&$1=$2\")" "$N" + } + config_unset() { + append updatestr "config = uci_update_config(config, \"-$1.$2\")" "$N" + } + config_clear() { + append updatestr "config = uci_update_config(config, \"-$1\")" "$N" + } + + . "/tmp/.uci/$PACKAGE_BASE" + + # completely disable handlers so that they don't get in the way + config() { + return 0 + } + option() { + return 0 + } + + config_load "$PACKAGE" + CONFIG_FILENAME="${CONFIG_FILENAME:-$UCI_ROOT/etc/config/$PACKAGE_BASE}" + uci_do_update "$CONFIG_FILENAME" "$updatestr" > "/tmp/.uci/$PACKAGE_BASE.new" && { + mv -f "/tmp/.uci/$PACKAGE_BASE.new" "$CONFIG_FILENAME" && \ + rm -f "/tmp/.uci/$PACKAGE_BASE" + } + ) + $LOCK -u "/tmp/.uci/$PACKAGE_BASE.lock" +} + + |