#!/bin/sh
set -x

PRGNAM=laptop-mode-tools
VERSION=1.55


BUILD=1
PACKAGER=cyco
ARCH=$(uname -m)

CWD=$(pwd)
TMP=/tmp
PKG=$TMP/$PACKAGER/pkg-$PRGNAM

PREFIX=/usr

# Cleaning
( cd $TMP
    rm -fr $PRGNAM-$VERSION
    rm -fr $PKG
)

# Fetching sources
( cd $TMP
    [ -e $CWD/${PRGNAM}_$VERSION.tar.?z* ] \
        && tar xvf $CWD/${PRGNAM}_$VERSION.tar.?z* \
        && mv ${PRGNAM}_$VERSION ${PRGNAM}-$VERSION
    [ ! -e $PRGNAM-$VERSION ] \
        && wget -c http://samwel.tk/laptop_mode/tools/downloads/${PRGNAM}_$VERSION.tar.gz \
        && tar xvf ${PRGNAM}_$VERSION.tar.?z* \
        && mv ${PRGNAM}_$VERSION ${PRGNAM}-$VERSION
)

# Preparation
( cd $TMP/$PRGNAM-$VERSION
    chown -R root:root .
    find . \
        \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
        -exec chmod 755 {} \; -o \
        \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
        -exec chmod 644 {} \;
)

# Installation
mkdir -p $PKG$PREFIX/{bin,lib$LIBSUFFIX/$PRGNAM,man/man1}
( cd $TMP/$PRGNAM-$VERSION
    make install DESTDIR=$PKG
    echo "$ARCH" | grep -q "64" && mv $PKG$PREFIX/lib $PKG$PREFIX/lib64

    mkdir -p $PKG/etc/rc.d/
    mv $PKG/etc/init.d/laptop-mode $PKG/etc/rc.d/rc.laptop-mode.new
    rm -fr $PKG/etc/init.d/
)

# Cleaning
( cd $PKG
    find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
    find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

    find $PKG$PREFIX/man -type f -name "*.?" -exec gzip -9 {} \;

    chown -R root:root .
    find . \
        \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
        -exec chmod 755 {} \; -o \
        \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
        -exec chmod 644 {} \;
)

# Packaging
( cd $PKG
    mkdir install

    cat <<EOF > install/doinst.sh
config() {
  NEW="\$1"
  OLD="\$(dirname \$NEW)/\$(basename \$NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r \$OLD ]; then
    mv \$NEW \$OLD
  elif [ "\$(cat \$OLD | md5sum)" = "\$(cat \$NEW | md5sum)" ]; then # toss the redundant copy
    rm \$NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}

config etc/rc.d/rc.laptop-mode.new

grep -q "rc\.laptop-mode" /etc/rc.d/rc.local || cat <<EORCLOCAL >> /etc/rc.d/rc.local

[ -x /etc/rc.d/rc.laptop-mode ] && /etc/rc.d/rc.laptop-mode start
EORCLOCAL
EOF

    cat <<EOF > install/slack-desc
$PRGNAM: $PRGNAM (all you need to use laptop mode)
$PRGNAM:
$PRGNAM: Laptop Mode Tools is a laptop power saving package for Linux systems. It allows
$PRGNAM: you to extend the battery life of your laptop, in several ways. It is the
$PRGNAM: primary way to enable the Laptop Mode feature of the Linux kernel, which lets
$PRGNAM: your hard drive spin down. In addition, it allows you to tweak a number of
$PRGNAM: other power-related settings using a simple configuration file.
$PRGNAM:
$PRGNAM:
$PRGNAM: http://samwel.tk/laptop_mode/
$PRGNAM:
EOF

    makepkg -l y -c n $TMP/$PRGNAM-$(echo $VERSION | tr -d '-')-$ARCH-$BUILD$PACKAGER.txz
)