#!/bin/sh

cd `dirname "$0"`
. package/info

usage () {
cat <<EOF
Usage: $0 [OPTION]... [TARGET]

Defaults for the options are specified in brackets.

Installation directories:
  --prefix=PREFIX               main installation prefix [/]
  --exec-prefix=EPREFIX         installation prefix for executable files [PREFIX]

Fine tuning of the installation directories:
  --libdir=DIR                  service and source directories [PREFIX/lib/$package]
  --bindir=BINDIR               user executables [EPREFIX/bin]

Binaries
  --shebangdir=SHEBANGDIR       dir used to find interpreters for scripts [PREFIX/bin]

Logging
  --syslogdir=LOGDIR            system logdir [PREFIX/var/log/goetia]
  --usrlogdir=LOGDIR            user logdir appended to \${HOME} [.local/state/log]

  --logconfig=LOGCONFIG         directives for autogenerated s6-log scripts [n3 T]
  --loguser=LOGUSER             user running all system s6-log processes [logger]
  --logdep=LOGDEP               dependencies for autogenerated system s6-log processes [mount]

Other
  --sysconfdir=CONFIGDIR        systemtree configdir [PREFIX/etc/goetia/system]
  --usrconfdir=CONFIGDIR        usertree configdir appended to \${HOME} [.config/goetia]

  --tmpfsdir=TMPFSDIR           tmpfs dir used for supervision trees [/run]
  --sysrundir=SYSRUNDIR         systemtree runtime dir appended to TMPFSDIR [system]
  --usrrundir=USRRUNDIR         usertree runtime dir appended to TMPFSDIR [user]

  --timeout=TIMEOUT             Timeout in ms for s6-rc invocations in init and shutdown scripts [60000]

Optional features:
  --enable-slashpackage[=ROOT]  assume /package installation at ROOT [disabled]

EOF
exit 0
}

# Helper functions

# If your system does not have printf, you can comment this, but it is
# generally not a good idea to use echo.
# See http://www.etalabs.net/sh_tricks.html
echo () {
  printf %s\\n "$*"
}

quote () {
  tr '\n' ' ' <<EOF | grep '^[-[:alnum:]_=,./:]* $' >/dev/null 2>&1 && { echo "$1" ; return 0 ; }
$1
EOF
  echo "$1" | sed -e "s/'/'\\\\''/g" -e "1s/^/'/" -e "\$s/\$/'/" -e "s#^'\([-[:alnum:]_,./:]*\)=\(.*\)\$#\1='\2#" -e "s|\*/|* /|g"
}

fail () {
  echo "$*"
  exit 1
}

fnmatch () {
  eval "case \"\$2\" in $1) return 0 ;; *) return 1 ;; esac"
}

stripdir () {
  while eval "fnmatch '*/' \"\${$1}\"" ; do
    eval "$1=\${$1%/}"
  done
}

escapeslash () {
	echo "$1" | sed -e 's/\//\\\//g'
}

# Actual script

prefix=
exec_prefix='$prefix'
bindir='$exec_prefix/bin'
libdir='$prefix/lib/$package'

shebangdir='$prefix/bin'

syslogdir='$prefix/var/log/goetia'
usrlogdir='.local/state/log'

logconfig='n3 T'
loguser='logger'
logdep='mount'

sysconfdir='$prefix/etc/goetia/system'
usrconfdir='.config/goetia'

tmpfsdir='$prefix/run'
sysrundir='system'
usrrundir='user'

timeout=60000

slashpackage=false
sproot=
home=
exthome=
build=

for arg ; do
  case "$arg" in
    --help) usage ;;
    --prefix=*) prefix=${arg#*=} ;;
    --exec-prefix=*) exec_prefix=${arg#*=} ;;
    --bindir=*) bindir=${arg#*=} ;;
    --libdir=*) libdir=${arg#*=} ;;
    --shebangdir=*) shebangdir=${arg#*=} ;;
    --syslogdir=*) syslogdir=${arg#*=} ;;
    --usrlogdir=*) usrlogdir=${arg#*=} ;;
    --logconfig=*) logconfig=${arg#*=} ;;
    --loguser=*) loguser=${arg#*=} ;;
    --logdep=*) logdep=${arg#*=} ;;
    --sysconfdir=*) sysconfdir=${arg#*=} ;;
    --usrconfdir=*) usrconfdir=${arg#*=} ;;
    --tmpfsdir=*) tmpfsdir=${arg#*=} ;;
    --sysrundir=*) sysrundir=${arg#*=} ;;
    --usrrundir=*) usrrundir=${arg#*=} ;;
    --timeout=*) timeout=${arg#*=} ;;
	--enable-slashpackage=*) sproot=${arg#*=} ; slashpackage=true ; ;;
    --enable-slashpackage) sproot= ; slashpackage=true ;;
    --disable-slashpackage) sproot= ; installtype=fhs ;;
    --enable-*|--disable-*|--with-*|--without-*|--*dir=*) ;;
    -* ) echo "$0: unknown option $arg" ;;
    *=*) eval "${arg%%=*}=\${arg#*=}" ;;
    *) target=$arg ;;
  esac
done

# Expand installation directories
stripdir prefix
for i in exec_prefix bindir libdir shebangdir syslogdir usrlogdir sysconfdir usrconfdir tmpfsdir sysrundir usrrundir sproot ; do
  eval tmp=\${$i}
  eval $i=$tmp
  stripdir $i
done

# Set slashpackage values
if $slashpackage ; then
  home=${sproot}/package/${category}/${package}-${version}
  exthome=${sproot}/package/${category}/${package}
  extbinprefix=${exthome}/command
  bindir=${home}/command
  libdir=${home}
fi

echo "Creating config.mak..."
cmdline=$(quote "$0")
for i ; do cmdline="$cmdline $(quote "$i")" ; done
exec 3>&1 1>config.mak
cat << EOF
# This file was generated by:
# $cmdline
# Any changes made here will be lost if configure is re-run.

IT ::= all

package ::= $package
prefix ::= $prefix
exec_prefix ::= $exec_prefix
bindir ::= $bindir
libdir ::= $libdir
shebangdir ::= $(escapeslash "$shebangdir")
syslogdir ::= $(escapeslash "$syslogdir")
usrlogdir ::= $(escapeslash "$usrlogdir")
logconfig ::= $(escapeslash "$logconfig")
loguser ::= $(escapeslash "$loguser")
logdep ::= $(escapeslash "$logdep")
sysconfdir ::= $(escapeslash "$sysconfdir")
usrconfdir ::= $(escapeslash "$usrconfdir")
tmpfsdir ::= $(escapeslash "$tmpfsdir")
sysrundir ::= $(escapeslash "$sysrundir")
usrrundir ::= $(escapeslash "$usrrundir")
timeout ::= $timeout
slashpackage ::= $slashpackage
sproot ::= $sproot
version ::= $version
home ::= $home
exthome ::= $exthome
EOF

exec 1>&3 3>&-
echo "  ... done."