rocklinux/scripts/config.func

#!/bin/bash
# --- ROCK-COPYRIGHT-NOTE-BEGIN ---
# 
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# Please add additional copyright information _after_ the line containing
# the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
# the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
# 
# ROCK Linux: rock-src/scripts/config.func
# ROCK Linux is Copyright (C) 1998 - 2006 Clifford Wolf
# 
# 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. A copy of the GNU General Public
# License can be found at Documentation/COPYING.
# 
# Many people helped and are helping developing ROCK Linux. Please
# have a look at http://www.rocklinux.org/ and the Documentation/TEAM
# file for details.
# 
# --- ROCK-COPYRIGHT-NOTE-END ---

# This function appends or inserts values to a variable:
#
#       var_append PATH ":" "$HOME/bin"
#       var_insert PATH ":" "$HOME/bin"
#
var_append() {
        eval "[ \"\$$1\" ] && $1=\"\${$1}$2\""
        eval "$1=\"\${$1}$3\""
}
var_insert() {
        eval "[ \"\$$1\" ] && $1=\"$2\$$1\""
        eval "$1=\"$3\$$1\""
}

# Functions for working with config/$config.$swpid/packages
#
#	pkgenable	package-list
#	pkgdisable	package-list
#	pkgremove	package-list
#	pkgcheck	pattern X|O|.
#	pkgfilter	cmd arg1 ...
#

if [ -n "$nobashmod" ]
then
	pkgin() { :; }
	pkgout() { :; }
	__pkgfilter() {
		"$@" < config/$config.$swpid/packages > config/$config.$swpid/packages.new
		mv config/$config.$swpid/packages.new config/$config.$swpid/packages
	}
	pkgfilter() {
		bprof pkgfilter start
		__pkgfilter "$@"
		bprof pkgfilter stop
	}
	pkgenable() {
		bprof pkgenable start
		local pattern patterns
		for pattern; do
			patterns="$patterns /[ =]$pattern / s,^O,X, ;"
		done
		if [ "$patterns" ]; then
			__pkgfilter sed -e "$patterns"
		fi
		bprof pkgenable stop
	}
	pkgdisable() {
		bprof pkgdisable start
		local pattern patterns
		for pattern; do
			patterns="$patterns /[ =]$pattern / s,^X,O, ;"
		done
		if [ "$patterns" ]; then
			__pkgfilter sed -e "$patterns"
		fi
		bprof pkgdisable stop
	}
	pkgremove() {
		bprof pkgremove start
		local pattern patterns
		if [ "$1" ]; then
			patterns="/ $1 / d ;"; shift
			for pattern; do
				patterns="$patterns / $pattern / d ;"
			done
			__pkgfilter sed -e "$patterns"
		fi
		bprof pkgremove stop
	}
	pkgcheck() {
		bprof pkgcheck start
		local pattern="$1" stat="$2"

		sed -n -e "/^$stat.*[ =]$pattern / q0 ; $ q1 ;" \
			< config/$config.$swpid/packages
		local ret=$?
		bprof pkgcheck stop
		return $ret
	}
	#
	# pkgfork <origpkg> <newpkg> <name1> <value1> <name2> <value2> ..
	#
	# Names:
	#	status		X / O
	#	stages		012--5---9
	#	priority	115.000
	#	version		0.9.26
	#	prefix		/opt/foobar
	#	flag		CORE
	#	unflag		CORE
	#
	pkgfork() {
		local script="\$5==\"$1\" {print;\$5=\"$1=$2\";"
		shift; shift;
		while [ -n "$1" ]; do
			case "$1" in
				status)
					script="$script \$1=\"$2\";"
					;;
				stages)
					script="$script \$2=\"$2\";"
					;;
				priority)
					script="$script \$3=\"$2\";"
					;;
				version)
					script="$script \$6=\"$2\";"
					;;
				prefix)
					script="$script \$7=\"$2\";"
					;;
					flag)
					script="$script sub(\" 0\$\", \" $2 0\");"
					;;
				unflag)
					script="$script sub(\" $2 \", \" \");"
					;;
			esac
			shift; shift;
		done
		script="$script} {print;}"
		pkgfilter "awk" "--" "$script"
	}
else
	pkgin() { cfghlp pkg_in config/$config.$swpid/packages; }
	pkgout() { cfghlp pkg_out config/$config.$swpid/packages ; }
	pkgfilter() {
		bprof pkgfilter start
		cfghlp pkg_out config/$config.$swpid/packages.tmp
		"$@" < config/$config.$swpid/packages.tmp > config/$config.$swpid/packages
		cfghlp pkg_in config/$config.$swpid/packages
		bprof pkgfilter stop
	}
	pkgenable() {
		bprof pkgenable start
		cfghlp pkgenable "$@"
		bprof pkgenable stop
	}
	pkgdisable() {
		bprof pkgdisable start
		cfghlp pkgdisable "$@"
		bprof pkgdisable stop
	}
	pkgremove() {
		bprof pkgremove start
		cfghlp pkgremove "$@"
		bprof pkgremove stop
	}
	pkgcheck() {
		bprof pkgcheck start
		cfghlp pkgcheck "$1" "$2"; local ret=$?
		bprof pkgcheck stop
		return $ret
	}
	pkgfork() {
		bprof pkgfork start
		cfghlp pkgfork "$@"
		bprof pkgfork stop
	}
fi

comment() {
	bprof comment start
	if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ]
	then
		commentnr=$(( $commentnr + 1 ))
		echo "COMMENT_$commentnr '$spacer$1'" >> config.dialog.$menu_this.$swpid

		# Hi, esden here, very ill stuff here I save the help
		# strings here to a temporary file named config.help.$swpid
		# this sed tr sandwitch formats the string so that
		# \n are masked and the Help strings are not killed some way
		if [ "$2" != "" ] ; then
			set_help "COMMENT_$commentnr" "$2"
		fi
	fi
	bprof comment stop
}

comment_id() {
	bprof comment_id start
	if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ]
	then
		echo "$2 '$spacer$1'" >> config.dialog.$menu_this.$swpid

		# If you do not know what mighty esden
		# is doing here see comment()
		if [ "$3" != "" ] ; then
			set_help "$2" "$3"
		fi
	fi
	bprof comment_id stop
}

const() {
	bprof const start
	local q="'"
	local v="${2//$q/$q\\$q$q}"
	eval "$1=\"\$2\""
	echo "export $1='$v'" >> config/$config.$swpid/config
	bprof const stop
}

# Usage: set_data NAME DEFAULT
#
set_data() {
	bprof set_data start
	local q="'"

	set_name="ROCKCFGSET_${1#ROCKCFG_}"
	usr_name="ROCKCFGUSR_${1#ROCKCFG_}"
	usr_data="${!usr_name}"

	menumode=0
	data="$2"

	if [ "${!set_name}" ]; then
		data="${!set_name}"
	fi
	dfl_data="$data"

	if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ]; then
		menumode=2
		if [ $nousrconfig -eq 1 ] && [ -n "${!1}" -a "${!1}" != "$data" ] ; then
			eval "$usr_name=\"${!1}\""
			usr_data="${!1}"
		fi
		if [ -n "$usr_data" ]; then
			data="$usr_data"
			obegin="<" oend=">" menumode=1
		else
			unset $usr_name
		fi
	fi

	eval "$1=\"\$data\""
	item="$1"

	echo "export $1='${data//$q/$q\\$q$q}'" >> config/$config.$swpid/config
	bprof set_data stop
}

choice() {
	bprof choice start
	local obegin="(" oend=")"
	local q="'"

	set_data "$1" "$2"

	# if data is not in list, leave usr_data unmodified
	# but set the current value to the default
	local fallback_hack=0
	eval $(
		shift; shift
		while [ "$#" != 0 ] ; do
			[ "$data" = "$1" ] && exit
			shift; shift
		done
		echo "fallback_hack=1"
	)
	if [ "$fallback_hack" = 1 ]; then
		obegin="?"; oend="?"; data="$dfl_data"; eval "$1=\"\$data\""
		echo "export $1='${data//$q/$q\\$q$q}'" >> config/$config.$swpid/config
	fi

	if [ "$menumode" -gt 0 ]
	then
		{ echo -en "$item\tchoice_action '$usr_name' '$usr_data'" ; shift ; shift
		echo -n " '' 'Reset_this_switch_to_default_value'"
		for x ; do echo -n " '$x'" ; done ; echo ; } >> config.data.$menu_this.$swpid

		xdata="$obegin$data$oend"

		while [ "$1" -a "$1" != "$data" ] ; do shift ; shift ; done
		printf "'$item' '$spacer%-${tabspace}s ${2//_/ }'\n" "$xdata" \
			>> config.dialog.$menu_this.$swpid
	fi

	bprof choice stop
}

choice_action() {
	command="./src/rockdialog.bin --title 'Build Config' \
		--backtitle '$configtitle' \
		--radiolist 'Arrow keys navigate the menu.  Press <Enter> to activate menu items.  Highlighted letters are hotkeys.' \
		$(( $lines - 4 )) $(( $columns - 5 )) $(( $lines - 12 ))"
	default=$2 ; item=$1 ; shift ; shift
	while [ "$#" -gt 1 ] ; do
		if [ "$1" = "$default" ]
		then command="$command '$1' '${2//_/ }' ON"
		else command="$command '$1' '${2//_/ }' OFF" ; fi
		shift ; shift
	done
	eval "$command" 2> config.out.$swpid

	case "$?" in
		0|6)
			eval "$item='`cat config.out.$swpid`'"
			;;
		1|255) return 0 ;;
		2) echo "No help." ; sleep 1 ;;
		*) echo "unknown returncode: $?" ; exit 1 ;;
	esac
}

text() {
	bprof text start
	local q="'" obegin="(" oend=")"
	set_data "$2" "$3"

	if [ "$menumode" -gt 0 ]
	then
		echo -e "$2\ttext_action '$1' '$usr_name'" \
				"'${data//$q/$q\\$q$q}'" >> config.data.$menu_this.$swpid

		xdata="${obegin}$( printf "%-${tabspace}s" \
				"$(echo $data | cut -c1-20)")${oend}"

		printf "'$2' '$spacer%s $1'\n" \
			"${xdata//$q/$q\\$q$q}" >> config.dialog.$menu_this.$swpid

		# If you do not know what mighty esden
		# is doin here see comment()
		if [ "$4" != "" ] ; then
			set_help "$2" "$4"
		fi
	fi
	bprof text stop
}

text_action() {
	./src/rockdialog.bin --title 'Build Config' \
		--backtitle "$configtitle" \
		--inputbox "$1" 9 $(( $columns - 5 )) "$3" 2> config.out.$swpid
	[ "$?" -eq 0 -o "$?" -eq 1 ] && eval "$2=\"\$(cat config.out.$swpid)\""
}

bool() {
	bprof bool start
	local x obegin="[" oend="]"
	set_data "$2" "$3"

	if [ "$menumode" -gt 0 ]
	then
		if [ $data -eq 0 ] ; then x="${obegin} ${oend}" ; else x="${obegin}*${oend}" ; fi
		echo -e "$2\tbool_action '$usr_name' '$usr_data' '$3'" >> config.data.$menu_this.$swpid

		printf "$2 '$spacer%-${tabspace}s ${1//_/ }'\n" "$x" >> config.dialog.$menu_this.$swpid

		# If you do not know what mighty esden is doin here see comment()
		if [ "$4" != "" ] ; then
			set_help "$2" "$4"
		fi
	fi
	bprof bool stop
}

bool_action() {
	local usrvar=$1
	local origval=$3
	local usrval
	eval "usrval=\${$usrvar}"
	case "$usrval" in
		"")	[ "$origval" == "0" ] && eval "$usrvar=1"
			[ "$origval" == "1" ] && eval "$usrvar=0"
			;;
		1)	[ "$origval" == "0" ] && eval "$usrvar=0"
			[ "$origval" == "1" ] && eval "$usrvar="
			;;
		0)	[ "$origval" == "0" ] && eval "$usrvar="
			[ "$origval" == "1" ] && eval "$usrvar=1"
			;;
	esac
}

editfile() {
    bprof editfile start
    if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ] ; then
	local x="$spacer" q="'"
	comment ",----< $3 >----."
	block_begin 0 ; spacer="${spacer%??}| "

	touch "$2"
	line_nr=1
	while read line ; do
		line="${line//$q/$q\\$q$q}"
		printf "$1:${editfilenr} '$spacer%-${tabspace}s %s'\n" \
		    `printf "%03d:" $line_nr` "$line" >> config.dialog.$menu_this.$swpid

		echo -e "$1:${editfilenr}\teditfile_action $2" \
			"$line_nr '$3'" >> config.data.$menu_this.$swpid

		editfilenr=$(( $editfilenr + 1 ))
		line_nr=$(( $line_nr + 1 ))
	done < "$2"

	printf "$1:${editfilenr} '$spacer%-${tabspace}s %s'\n" \
	       `printf "%03d:" $line_nr` "<add new rule>" >> config.dialog.$menu_this.$swpid

	echo -e "$1:${editfilenr}\teditfile_action $2" \
		"$line_nr '$3'" >> config.data.$menu_this.$swpid

	editfilenr=$(( $editfilenr + 1 ))

	block_end
	comment "\`------${3//?/-}------'\''"
	spacer="$x"
    fi
    bprof editfile stop
}

editfile_action() {
	line="`tail -n +$2 $1 | head -n 1`"

	./src/rockdialog.bin --title 'Build Config' \
		--backtitle "$configtitle" \
		--inputbox "$3 - Line $3"  \
		9 $(( $columns - 5 )) "$line" 2> config.out.$swpid

	head -n $(( $2 - 1 )) $1 > $1.new
	[ -s config.out.$swpid ] && echo "`cat config.out.$swpid`" >> $1.new
	tail -n +$(( $2 + 1 )) $1 >> $1.new

	mv $1.new $1
}

startprog() {
	bprof startprog start
	if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ]
	then
		printf "$1 '$spacer%-${tabspace}s %s'\n" \
		       "-->" "$2" >> config.dialog.$menu_this.$swpid
		echo -e "$1\t$3" >> config.data.$menu_this.$swpid
	fi
	bprof startprog stop
}

block_begin() {
	bprof block_begin start
	[ "$tabspace_list" ] && spacer="$spacer  "
	tabspace_list="$tabspace $tabspace_list"
	tabspace="$(( $tabspace + $1 - 2 ))"
	bprof block_begin stop
}

block_end() {
	bprof block_end start
	spacer="${spacer%??}"
	tabspace="${tabspace_list%% *}"
	tabspace_list="${tabspace_list#* }"
	bprof block_end stop
}

expert_begin() {
	expert=$(( $expert + 1 ))
}

expert_end() {
	expert=$(( $expert - 1 ))
}

menu_begin() {
	bprof menu_begin start
	menu_counter=$(( $menu_counter + 1 ))

	if [ $ROCKCFG_EXPERT -eq 1 -o $expert -eq 0 ]
	then
		printf "$1 '$spacer%-${tabspace}s %s'\n" \
			"===>" "$2" >> config.dialog.$menu_this.$swpid
		echo -e "$1\tmenu_current=$menu_counter" >> config.data.$menu_this.$swpid

		echo "$1 '===> $2'" >> config.dialog.$menu_counter.$swpid
		echo -e "$1\tmenu_current=$menu_this current=$1" >> config.data.$menu_counter.$swpid
		echo -e "MENU_BACK\tmenu_current=$menu_this current=$1" >> config.data.$menu_counter.$swpid
	fi

	menu_stack="$menu_this $menu_stack"
	menu_this=$menu_counter

	block_begin 3
	bprof menu_begin stop
}

menu_end() {
	bprof menu_end start
	block_end
	menu_this="${menu_stack%% *}"
	menu_stack="${menu_stack#* }"
	bprof menu_end stop
}

set_help() {
	bprof set_help start
	(echo -ne "$1 '$1:\n\n$2'" | sed 's,$,\\n,' |
		tr -d '\n' | sed 's,\\n$,,'; echo ) >> config.help.$swpid
	bprof set_help stop
}

get_help() {
	bprof get_help start

	cat << EOT

This is the ROCK Linux $rockver Configuration Tool.

Config option types:
	[*] [ ]		Unmodified bool value (set and unset)
	<*> < >		User-modified bool value (set and unset)
	(foobar)	Unmodified selection or text field
	<foobar>	User-modified selection or text field

Note that e.g. bool value are in fact tristate options:
user set, user unset and and the unmodified default value

This is because one option might change the default value
of another option. You might need a while to get used to
the concept, but in the end it really makes sense.

-----
EOT

	# Create standard help output ...
	default_text="
There is no help on '$1' available.

Please read the build Documentation (Documentation/BUILD)
before building ROCK Linux.

More information can be found on the ROCK Linux Homepage:

	       http://www.rocklinux.org/

Information about the ROCK Linux mailing lists and the mailing
list archive can be found at:

               http://www.rocklinux.org/mail.html and
               http://www.rocklinux.net/lurker/splash"
	
	# Ok let us find a help for the current item ...

	# First of all mask all special chars in the item name
	# Comment: this is sick. You can't get any \n this way !!!
	item_name=$( echo "$1" | sed 's/[][\/.^$*]/\\&/g' )
	# Now search *.hlp files
	hlp_text=$( sed -n "/^$item_name[ 	]*\$/,\${
			/^$item_name[ 	]*\$/c\\
$item_name:\\

			/^#/d
			/^[^ 	]/q
			s/^  //
			p
			}" scripts/config*.hlp package/*/*/subconfig-*.hlp package/*/*/config*.hlp target/*/config*.hlp misc/*/config*.hlp misc/*/*/config*.hlp 2>/dev/null )
	
	# Get help strings out of the temporary file.
	tmp_text=$(grep "^$item_name" config.help.$swpid | cut -f2- -d' ' | sed -e "s,^',," -e "s,'$,," )

	# Let us see what we have ...
	if [ "$hlp_text" -a "$tmp_text" ] ; then
		echo "
There are two help text's... one in one of the config.in files and one
in one of the config.hlp files. Please remove one of them to get rid of
this message here.

Here the one out of config.in:

$tmp_text

Here the one out of config.hlp:

$hlp_text"
	elif [ "$hlp_text" ] ; then
		echo "$hlp_text"
	elif [ "$tmp_text" ] ; then
		echo "$tmp_text"
	else
		echo "$default_text"
	fi
	bprof get_help stop
}