150 lines
2.6 KiB
Bash
Executable File
150 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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# Manipulate options in a .config file from the command line
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usage() {
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cat >&2 <<EOL
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Manipulate options in a .config file from the command line.
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Usage:
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config options command ...
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commands:
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--enable|-e option Enable option
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--disable|-d option Disable option
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--module|-m option Turn option into a module
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--set-str option value
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Set option to "value"
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--state|-s option Print state of option (n,y,m,undef)
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--enable-after|-E beforeopt option
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Enable option directly after other option
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--disable-after|-D beforeopt option
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Disable option directly after other option
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--module-after|-M beforeopt option
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Turn option into module directly after other option
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commands can be repeated multiple times
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options:
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--file .config file to change (default .config)
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config doesn't check the validity of the .config file. This is done at next
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make time.
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EOL
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exit 1
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}
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checkarg() {
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ARG="$1"
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if [ "$ARG" = "" ] ; then
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usage
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fi
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case "$ARG" in
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CONFIG_*)
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ARG="${ARG/CONFIG_/}"
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;;
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esac
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ARG="`echo $ARG | tr a-z A-Z`"
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}
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set_var() {
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local name=$1 new=$2 before=$3
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name_re="^($name=|# $name is not set)"
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before_re="^($before=|# $before is not set)"
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if test -n "$before" && grep -Eq "$before_re" "$FN"; then
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sed -ri "/$before_re/a $new" "$FN"
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elif grep -Eq "$name_re" "$FN"; then
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sed -ri "s:$name_re.*:$new:" "$FN"
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else
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echo "$new" >>"$FN"
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fi
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}
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if [ "$1" = "--file" ]; then
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FN="$2"
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if [ "$FN" = "" ] ; then
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usage
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fi
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shift 2
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else
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FN=.config
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fi
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if [ "$1" = "" ] ; then
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usage
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fi
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while [ "$1" != "" ] ; do
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CMD="$1"
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shift
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case "$CMD" in
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--refresh)
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;;
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--*-after)
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checkarg "$1"
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A=$ARG
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checkarg "$2"
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B=$ARG
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shift 2
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;;
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--*)
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checkarg "$1"
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shift
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;;
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esac
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case "$CMD" in
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--enable|-e)
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set_var "CONFIG_$ARG" "CONFIG_$ARG=y"
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;;
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--disable|-d)
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set_var "CONFIG_$ARG" "# CONFIG_$ARG is not set"
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;;
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--module|-m)
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set_var "CONFIG_$ARG" "CONFIG_$ARG=m"
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;;
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--set-str)
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set_var "CONFIG_$ARG" "CONFIG_$ARG=\"$1\""
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shift
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;;
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--state|-s)
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if grep -q "# CONFIG_$ARG is not set" $FN ; then
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echo n
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else
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V="$(grep "^CONFIG_$ARG=" $FN)"
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if [ $? != 0 ] ; then
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echo undef
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else
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V="${V/CONFIG_$ARG=/}"
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V="${V/\"/}"
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echo "$V"
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fi
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fi
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;;
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--enable-after|-E)
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set_var "CONFIG_$B" "CONFIG_$B=y" "CONFIG_$A"
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;;
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--disable-after|-D)
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set_var "CONFIG_$B" "# CONFIG_$B is not set" "CONFIG_$A"
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;;
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--module-after|-M)
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set_var "CONFIG_$B" "CONFIG_$B=m" "CONFIG_$A"
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;;
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# undocumented because it ignores --file (fixme)
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--refresh)
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yes "" | make oldconfig
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;;
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*)
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usage
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;;
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esac
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done
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