#----------------------------------------------------------------------------
# /var/install/include/configlib - library for eisfair scripts
#
# Copyright (c) 2001-2006 the eisfair team, c/o Frank Meyer, frank(at)eisfair(dot)org
#
# Creation : 2005-05-24 max
# Last Update: $Id$
#
# 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.
#----------------------------------------------------------------------------
#----------------------------------------------------------------------------
# interface description
#----------------------------------------------------------------------------
# printgpl() : [-conf|-check|-check_exp|-check_ext|()]
# [-conf] : print the GPL Header for config
# [-check] : print the GPL Header for check
# [-check_exp] : print the GPL Header for check.exp
# [-check_ext] : print the GPL Header for check.ext
# [()] : print the GPL Header for config (for compatible to old Version of printgpl)
# printgroup() : print a configuration group header
# printcustomgroup() : print a configuration group header
# : with customized comment
# printvar() : print a config variable
# printcomment() : print a comment
# printend() : print the footer
# setlinespacing() : set linespaceing (on/off)
# if set, printvar will print
# "FOO_ARRAY_2_VARIABLE="myvalue"
# # an important option"
# instead of
# "FOO_ARRAY_2_VARIABLE="myvalue" # an important option"
#----------------------------------------------------------------------------
#============================================================================
# only include this file once
#============================================================================
if [ "$_CONFIGLIB" != "true" ]
then
_CONFIGLIB='true'
# default for linespacing
_CONFIGLIB_LINESPACING='off'
# printgpl
# ==================
# prints the GPL header for a configuration and check file
#
# parameters: $1 file-name in header
# e.g [-conf|-check|-check_exp|-check_ext|()]
# $2 package name
# e.g. "base"
# $3 creation date
# e.g. "2001-12-31"
# $4 creator
# e.g. "fm"
# $5 copyright notice, if not set default will be used [optional]
# e.g. "2001-2006 the eisfair team, c/o Frank Meyer, frank(at)eisfair(dot)org"
#
# output : GPL header for an eisfair config- and check-file
printgpl ()
case "${1}" in
-conf)
folder_line="/etc/config.d/${2} - configuration file for ${2}"
shift; shift
gpl "$1" "$2" "$3"
;;
-check)
folder_line="/etc/check.d/${2} - eischk file for ${2}"
shift; shift
gpl "$1" "$2" "$3"
;;
-check_exp)
folder_line="/etc/check.d/${2}.exp - eischk exp file for ${2}"
shift; shift
gpl "$1" "$2" "$3"
;;
-check_exp)
folder_line="/etc/check.d/${2}.ext - eischk ext file for ${2}"
shift; shift
gpl "$1" "$2" "$3"
;;
*)
folder_line="/etc/config.d/${1} - configuration file for ${1}"
shift
gpl "$1" "$2" "$3"
;;
esac
gpl ()
{
echo "#------------------------------------------------------------------------------"
echo "# ${folder_line}"
echo "#"
echo "# Creation : $1 $2"
echo "# Last Update: `date +%Y-%m-%d` $LOGNAME"
echo "#"
if [ "$3" != "" ]
then
echo "# Copyright (c) $3"
else
echo "# Copyright (c) 2001-`date +\"%Y\"` the eisfair team, c/o Frank Meyer, frank(at)eisfair(dot)org"
fi
echo "#"
echo "# This program is free software; you can redistribute it and/or modify"
echo "# it under the terms of the GNU General Public License as published by"
echo "# the Free Software Foundation; either version 2 of the License, or"
echo "# (at your option) any later version."
echo "#------------------------------------------------------------------------------"
echo
}
# printgroup
# ==========
# prints an eisfair configuration group header
#
# parameters: $1 group name
# e.g. "General settings"
# $2 group comment [optional]
# e.g. "general settings for eisfair configuration"
#
# output : group header for an eisfair config-file
printgroup()
{
echo
echo "#------------------------------------------------------------------------------"
echo "# $1"
if [ "$2" != "" ]
then
echo "# $2"
fi
echo "#------------------------------------------------------------------------------"
echo
}
# printcustomgroup
# ================
# prints an eisfair configuration group header with customized comment
#
# parameters: $1 group name
# e.g. "General settings"
#
# usage : printcustomgroup 'General settings' << !EOC
# comment line
# comment line
# comment line
# !EOC
#
# output : group header for an eisfair config-file
printcustomgroup()
{
echo
echo "#------------------------------------------------------------------------------"
echo "# $1"
echo "#"
while read line
do
echo "# $line"
done
echo "#------------------------------------------------------------------------------"
echo
}
# printvar
# ========
# prints config variables and comments with specific indenting
#
# parameters: $1 name of variable
# e.g. "FOO_ARRAY_2_VARIABLE"
# $2 comment
# e.g. "an important option"
#
# output : variable entry line for an eisfair config-file
# e.g. "FOO_ARRAY_2_VARIABLE="myvalue" # an important option"
# get_splitpos
# ============
# looking for space
#
# parameters: $1 maximum comment length
# e.g. 42
# $2 comment
# e.g. "this is an important option for the program."
#
# output : returns position of last space character in string before position $1
# e.g. '36'
#
# _pos=`get_splitpos ${_comment_length} "${_comment}"`
function get_splitpos ()
{
_gsp_maxcommentlen=`expr $1 + 1`
_gsp_comment=`echo "$2" | sed 's/ *$//g'`
_gsp_commentlen=${#_gsp_comment}
_gsp_comment=`echo "$2" | head -c$_gsp_maxcommentlen`
if [ $_gsp_commentlen -ge $_gsp_maxcommentlen ]
then
# string to long, find spaces
_gsp_return=0
idx=$_gsp_maxcommentlen
while [ $idx -ge $_printvar_mincommentlen ]
do
# search for space character from string end to begin
_gsp_tmp=`echo "$_gsp_comment" | cut -c${idx}`
if [ "$_gsp_tmp" = " " ]
then
# space character found
_gsp_return=${idx}
break
fi
idx=`expr $idx - 1`
done
else
# string ok.
_gsp_return=$_gsp_commentlen
fi
echo $_gsp_return
}
# fixed spaces string - 60 character long (fast method)
_configlib_spacestr=" "
_configlib_commentpos=37
_configlib_maxlinelen=79
printvar()
{
_printvar_varname=$1
if [ "$2" == "" ]
then
_printvar_comment=''
else
_printvar_comment=" # $2"
fi
if [ "$_printvar_varname" == "" ]
then
# no variable name given
echo "`echo "$_configlib_spacestr" | head -c$_configlib_commentpos`$_printvar_comment"
else
# variable name given
_printvar_varlen=${#_printvar_varname}
eval _printvar_value="\$${_printvar_varname}"
_printvar_vallen=${#_printvar_value}
# if _CONFIGLIB_LINESPACING is 'on': simulate a very long value
if [ "$_CONFIGLIB_LINESPACING" = 'on' ]
then
_printvar_vallen=`expr $_printvar_vallen + $_configlib_maxlinelen`
fi
_printvar_maxcommentlen=`expr $_configlib_maxlinelen - $_configlib_commentpos`
_printvar_mincommentlen=`expr $_printvar_maxcommentlen / 2`
# check string quotation
HK="'"
if echo $_printvar_value | grep -q "'"
then
HK='"'
fi
if [ "$_printvar_comment" != "" ]
then
# comment found, go on ...
_printvar_strlen=`expr $_configlib_commentpos - 3 - $_printvar_varlen - $_printvar_vallen`
_printvar_exitflag=0
_printvar_headerflag=0
while [ $_printvar_exitflag -eq 0 ]
do
_printvar_commentlen=${#_printvar_comment}
if [ $_printvar_commentlen -gt $_printvar_maxcommentlen ]
then
# multi-line output
_printvar_breakpos=`get_splitpos ${_printvar_maxcommentlen} "${_printvar_comment}"`
if [ $_printvar_breakpos -eq 0 ]
then
# no space found, force hard line break
_printvar_restcommentlen=`expr $_printvar_commentlen - $_printvar_maxcommentlen + 1`
_printvar_comment_rest="`echo "$_printvar_comment" | tail -c$_printvar_restcommentlen`"
_printvar_comment=`echo "$_printvar_comment" | head -c$_printvar_maxcommentlen | sed 's/ *$//g'`
else
# space found, force soft line break
_printvar_restcommentlen=`expr $_printvar_commentlen - $_printvar_breakpos + 1`
_printvar_comment_rest="`echo "$_printvar_comment" | tail -c$_printvar_restcommentlen`"
_printvar_comment=`echo "$_printvar_comment" | head -c$_printvar_breakpos | sed 's/ *$//g'`
fi
if [ $_printvar_strlen -ge 0 ]
then
# comment in same row
if [ $_printvar_headerflag -eq 0 ]
then
# print header and comment
echo "${_printvar_varname}=${HK}${_printvar_value}${HK}`echo "${_configlib_spacestr}" | head -c${_printvar_strlen}`${_printvar_comment}"
_printvar_headerflag=1
else
# print comment only
echo "`echo "${_configlib_spacestr}" | head -c${_configlib_commentpos}`${_printvar_comment}"
fi
_printvar_headerflag=1
else
# comment in separate row
if [ $_printvar_headerflag -eq 0 ]
then
# print header only
echo "${_printvar_varname}=${HK}${_printvar_value}${HK}"
_printvar_headerflag=1
fi
# print comment only
echo "`echo "${_configlib_spacestr}" | head -c${_configlib_commentpos}`${_printvar_comment}"
fi
_printvar_comment=" # ${_printvar_comment_rest}"
else
# single-line/dual-line output
if [ $_printvar_headerflag -eq 0 ]
then
if [ $_printvar_strlen -lt 0 ]
then
# dual-line output with parameter, value and comment
echo "${_printvar_varname}=${HK}${_printvar_value}${HK}"
if [ "$_printvar_comment" != "" ]
then
echo "`echo "${_configlib_spacestr}" | head -c${_configlib_commentpos}`${_printvar_comment}"
fi
else
# single-line output with parameter and value
echo "${_printvar_varname}=${HK}${_printvar_value}${HK}`echo "${_configlib_spacestr}" | head -c${_printvar_strlen}`${_printvar_comment}"
fi
_printvar_headerflag=1
else
# last line of multi-line output
echo "`echo "${_configlib_spacestr}" | head -c${_configlib_commentpos}`${_printvar_comment}"
fi
_printvar_exitflag=1
fi
done
else
# no comment found
echo "${_printvar_varname}=${HK}${_printvar_value}${HK}"
fi
fi
}
# printcomment
# ============
# print a comment
#
# output: comment for an eisfair config-file
printcomment()
{
printvar '' "$1"
}
# printend
# ========
# prints an eisfair configuration footer
#
# output: footer for an eisfair config-file
printend()
{
echo
echo "#------------------------------------------------------------------------------"
echo "# End"
echo "#------------------------------------------------------------------------------"
}
# setlinespacing
# ==============
#
# set linespacing on or off
#
# parameters: $1 on or off
#
# output : -none-
setlinespacing()
{
_CONFIGLIB_LINESPACING="$1"
}
fi