diff options
Diffstat (limited to 'package/uci/files/uci-sh/lib')
| -rw-r--r-- | package/uci/files/uci-sh/lib/config/uci.awk | 186 | ||||
| -rw-r--r-- | package/uci/files/uci-sh/lib/config/uci.sh | 214 |
2 files changed, 400 insertions, 0 deletions
diff --git a/package/uci/files/uci-sh/lib/config/uci.awk b/package/uci/files/uci-sh/lib/config/uci.awk new file mode 100644 index 0000000000..c560907f2d --- /dev/null +++ b/package/uci/files/uci-sh/lib/config/uci.awk @@ -0,0 +1,186 @@ +# Configuration update functions - AWK API +# +# Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> +# Copyright (C) 2006 by 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 + +# parameters: 1 +function config_load(package, var) { + while (("/bin/ash -c '. /etc/functions.sh; unset NO_EXPORT; config_load \""package"\"; env | grep \"^CONFIG_\"'" | getline) == 1) { + sub("^CONFIG_", "") + if (match($0, "=") == 0) { + if (var != "") CONFIG[var] = CONFIG[var] "\n" $0 + next + } + var=substr($0, 1, RSTART-1) + CONFIG[var] = substr($0, RSTART+1, length($0) - RSTART) + } +} + +# parameters: 2 +function config_get(package, option) { + return CONFIG[package "_" option] +} + +# parameters: 3 +function config_get_bool(package, option, default, var) { + var = config_get(package, option); + if ((var == "enabled") || (var == "true") || (var == "1") || (var == "on")) return 1 + if ((var == "disabled") || (var == "false") || (var == "0") || (var == "off")) return 1 + return (var && var != "0" ? 1 : 0) +} + + +function read_file(filename, result) { + while ((getline <filename) == 1) { + result = result $0 "\n" + } + gsub(/\n*$/, "", result) + return result +} + +function uci_cmd2option(str, tmp) { + if (match(str,"=")!=0) { + res = "\toption " substr(str,1,RSTART-1) "\t'" substr(str,RSTART+1) "'" + } else { + res= "" + } + return res +} + +function uci_cmd2config(atype, aname) { + return "config \"" atype "\" \"" aname "\"" +} + +function uci_update_config(cfg, update, \ + lines, line, l, n, i, i2, section, scnt, remove, tmp, aidx, rest) { + scnt = 1 + linecnt=split(cfg "\n", lines, "\n") + + cfg = "" + for (n = 1; n < linecnt; n++) { + # stupid parser for quoted arguments (e.g. for the type string). + # not to be used to gather variable values (backslash escaping doesn't work) + line = lines[n] + gsub(/^[ \t]*/, "", line) + gsub(/#.*$/, "", line) + i2 = 1 + delete l + rest = line + while (length(rest)) { + if (match(rest, /[ \t\"]+/)) { + if (RSTART>1) { + l[i2] = substr(rest,1,RSTART-1) + i2++ + } + aidx=index(rest,"\"") + if (aidx>=RSTART && aidx<=RSTART+RLENGTH) { + rest=substr(rest,aidx+1) + # find the end of the string + match(rest,/\"/) + l[i2]=substr(rest,1,RSTART-1) + i2++ + } + rest=substr(rest,RSTART+RLENGTH) + } else { + l[i2] = rest + i2++ + rest = "" + } + } + line = lines[n] + + # when a command wants to set a config value for the current + # section and a blank line is encountered before an option with + # the same name, insert it here to maintain some coherency between + # manually and automatically created option lines + # if an option with the same name appears after this point, simply + # ignore it, because it is already set. + if ((section != "") && (l[1] != "option")) { + if (line ~ /^[ \t]*$/) { + if (update ~ "^" section "\\.") { + gsub("^" section ".", "", update) + cfg = cfg uci_cmd2option(update) "\n" + gsub(/=.*$/, "", update) + update = "-" section "." update + } + } + } + + if (l[1] == "config") { + # look for all unset values + if (section != "") { + flag=0 + if (update ~ "^" section "\\.") { + flag=1 + gsub("^" section ".", "", update) + cfg = cfg uci_cmd2option(update) "\n" + + update = "-" section "." update + } + if (flag!=0) cfg = cfg "\n" + } + + remove = "" + section = l[3] + if (!length(section)) { + section = "cfg" scnt + } + scnt++ + if (update == "-" section) { + remove = "section" + update = "" + } else if (update ~ "^@" section "=") { + update = "" + } else if (update ~ "^&" section "=") { + gsub("^&" section "=", "", update) + line = uci_cmd2config(l[2],update) + update = "" + } + } + if (remove == "option") remove = "" + if (l[1] == "option") { + if (update ~ "^-" section "\\." l[2] "$") remove = "option" + # if a supplied config value already exists, replace the whole line + if (match(update, "^" section "." l[2] "=")) { + gsub("^" section ".", "", update) + line = uci_cmd2option(update) + update = "" + } + } + if (remove == "") cfg = cfg line "\n" + } + + # any new options for the last section?? + if (section != "") { + if (update ~ "^" section "\\.") { + gsub("^" section ".", "", update) + cfg = cfg uci_cmd2option(update) "\n" + + update = "-" section "." update + } + } + + if (update ~ "^@") { + # new section + section = stype = substr(update,2) + gsub(/=.*$/,"",section) + gsub(/^.*=/,"",stype) + cfg = cfg "\nconfig \"" stype "\" \"" section "\"\n" + } + + return cfg +} 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" +} + + |