#!/bin/sh

# Slackware build script for nagios:
# IT infrastructure monitoring system

# Written by Niels Horn <niels.horn@gmail.com>
# revision date 2010/10/06

PRGNAM=nagios
VERSION=${VERSION:-3.2.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

DOCROOT=${DOCROOT:-/var/www/htdocs}

# To create valid symlinks, we need a relative path from DOCROOT
RELPATH=""
for i in $(echo $DOCROOT | tr "/" " "); do
  RELPATH="${RELPATH}../"
done

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
  ARCHQUADLET=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  ARCHQUADLET=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  ARCHQUADLET=""
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
  LIBDIRSUFFIX=""
  ARCHQUADLET="-gnueabi"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
  ARCHQUADLET=""
fi

set -e

# Check if the 'nagios' user & group exist:
if [ "$(grep ^nagios /etc/passwd)" = "" -o "$(grep ^nagios /etc/group)" = "" ] ; then
        printf "\nYou must have a nagios user and group.\n\nExample:\n"
        printf "\t# groupadd -g 213 nagios\n"
        printf "\t# useradd -d /dev/null -s /bin/false -u 213 -g nagios nagios\n\n"
        exit 1
fi

rm -rf $TMP/$PRGNAM-$VERSION $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

CFLAGS="$SLKCFLAGS" \
  ./configure \
  --prefix=/usr \
  --sbindir=/usr/sbin/$PRGNAM \
  --datadir=$DOCROOT/$PRGNAM \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --libexecdir=/usr/libexec/$PRGNAM \
  --sysconfdir=/etc/$PRGNAM \
  --localstatedir=/var/$PRGNAM \
  --mandir=/usr/man \
  --build=$ARCH-slackware-linux$ARCHQUADLET \
  --with-httpd-conf=/etc/httpd/extra \
  --with-checkresult-dir=/var/spool/$PRGNAM \
  --with-init-dir=/etc/rc.d \
  --with-lockfile=/var/run/nagios/nagios.lock

make all

export DESTDIR=$PKG
make install
make install-init
make install-commandmode
make install-config
# Need to create the $PKG/etc/httpd/extra directory (this is a bug in Makefile.in)
mkdir -p $PKG/etc/httpd/extra
make install-webconf

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# Change configuration files to .new
find $PKG/etc/$PRGNAM/ -name *.cfg | while read cfg ; do mv $cfg $cfg.new ; done
mv $PKG/etc/httpd/extra/nagios.conf $PKG/etc/httpd/extra/nagios.conf.new
# cfg files may contain passwords, so we don't want 'others' to read them
chmod -R g-w,o-rx $PKG/etc/$PRGNAM

# Create directory for lock-file
mkdir -p $PKG/var/run/nagios

# Change init script and leave it -x
mv $PKG/etc/rc.d/$PRGNAM $PKG/etc/rc.d/rc.$PRGNAM.new
chmod -x $PKG/etc/rc.d/rc.$PRGNAM.new

# Move documentation to right location
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  Changelog INSTALLING LEGAL LICENSE README THANKS UPGRADING contrib \
    $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/$DOCROOT/$PRGNAM/docs $PKG/usr/doc/$PRGNAM-$VERSION/html
cd $PKG/$DOCROOT/$PRGNAM
  ln -sf ../$RELPATH/usr/doc/$PRGNAM-$VERSION/html docs
cd -
find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $CWD/README.SLACKWARE > $PKG/usr/doc/$PRGNAM-$VERSION/README.SLACKWARE

# Fixup some ownership and permission issues
chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION/html
chmod 0755 $PKG/usr/doc/$PRGNAM-$VERSION/html{,/images}
chown root:root $PKG/usr/sbin
chown -R root:nagios $PKG/usr/sbin/$PRGNAM
chmod -R 0754 $PKG/usr/sbin/$PRGNAM
chown root:root $PKG/usr/bin
chmod 0755 $PKG/usr/bin
chown root:nagios $PKG/usr/bin/*
chmod 0754 $PKG/usr/bin/*
chown nagios:nagios $PKG/var/run/$PRGNAM
chmod 0775 $PKG/var/run/$PRGNAM

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}