#!/bin/sh
# Heavily based on the Slackware 13.0 SlackBuild
#
# Slackware build script for postfix (http://www.postfix.org)
#
# Copyright 2006, Alan Hicks, Lizella, GA (by slackbuilds.org)
# Copyright 2008,2009 Corrado Franco (http://conraid.net)
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#
#  Must have a postfix user to run this script
#  Otherwise your permissions will be FUBAR
#
# groupadd -g 200 postfix
# useradd -u 200 -d /dev/null -s /bin/false -g postfix postfix
#          
#  Must have a postdrop group to run this script
#  Otherwise your permissions will be FUBAR
#          
# groupadd -g 201 postdrop
#

# Exit on most errors
set -e

# Set variables:
CWD=$(pwd)

PRGNAME=${PRGNAME:-postfix}
VERSION=${VERSION:-2.6.5}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}
TAG=${TAG:-cf}
TMP=${TMP:-/tmp/pkg}
JOBS=${JOBS:-3}
SOURCE=http://de.postfix.org/ftpmirror/official/${PRGNAME}-${VERSION}.tar.gz
PKG=$TMP/package-$PRGNAME
DOCS="$PKG/usr/doc/${PRGNAME}-${VERSION}"

 # access aliases canonical generic header_checks main.cf main.cf.default \
 # makedefs.out master.cf postfix-files relocated transport virtual"
NEWFILES="access aliases canonical generic header_checks main.cf \
  makedefs.out master.cf relocated transport virtual"

# Set variables for install
config_directory=/etc/postfix
daemon_directory=/usr/libexec/postfix
command_directory=/usr/sbin
queue_directory=/var/spool/postfix
sendmail_path=/usr/sbin/sendmail
newaliases_path=/usr/bin/newaliases
mailq_path=/usr/bin/mailq
html_directory=/usr/doc/$PRGNAME-$VERSION/html
readme_directory=/usr/doc/$PRGNAME-$VERSION/README_FILES
manpage_directory=/usr/man
mail_owner=postfix
setgid_group=postdrop

# Insert document files in this variable
DOCFILES="AAAREADME COMPATIBILITY COPYRIGHT HISTORY IPv6-ChangeLog LICENSE \
  PORTING RELEASE_NOTES* TLS_ACKNOWLEDGEMENTS TLS_CHANGES TLS_LICENSE \
  US_PATENT_6321267 implementation-notes examples README_FILES html"

# Set compiling FLAGS
case "$ARCH" in
    i486)
        SLKCFLAGS="-O2 -march=i486 -mtune=i686"; CHOST="i486"
        SLKLDFLAGS=""; LIBDIRSUFFIX=""
        ;;
    i686)
        SLKCFLAGS="-O2 -march=i686 -pipe -fomit-frame-pointer"; CHOST="i486"
        SLKLDFLAGS=""; LIBDIRSUFFIX=""
        ;;
    x86_64)
        SLKCFLAGS="-O2 -fPIC -pipe -fomit-frame-pointer"; CHOST="x86_64"
        SLKLDFLAGS=""; LIBDIRSUFFIX="64"
        ;;
esac

# Download source, if not exist
if ! [ -e $(basename $SOURCE) ]; then
    wget $SOURCE
fi

# Extract source and prepare:
rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $PRGNAME-$VERSION

tar xzf $CWD/$PRGNAME-$VERSION.tar.gz
cd $PRGNAME-$VERSION

# Make sure ownerships and permissions are sane:
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 {} \;

# Build and install:
make makefiles \
  OPT="$SLKCFLAGS" \
  CCARGS="-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS -DHAS_MYSQL -I/usr/include/mysql" \
  AUXLIBS="-L/lib${LIBDIRSUFFIX} -L/usr/lib${LIBDIRSUFFIX} -lsasl2 -lssl -lcrypto -L/usr/lib${LIBDIRSUFFIX}/mysql -lmysqlclient -lz -lm"
make -j $JOBS
make non-interactive-package \
  install_root=$PKG \
  tempdir=$TMP/$PRGNAME-temp \
  config_directory=$config_directory \
  daemon_directory=$daemon_directory \
  command_directory=$command_directory \
  queue_directory=$queue_directory \
  sendmail_path=$sendmail_path \
  newaliases_path=$newaliases \
  mailq_path=$mailq_path \
  mail_owner=$mail_owner \
  setgid_group=$setgid_group \
  html_directory=$html_directory \
  manpage_directory=$manpage_directory \
  readme_directory=$readme_directory

# Add auxiliary files
install -m 755 auxiliary/qshape/qshape.pl $PKG/usr/sbin/qshape
install -m 755 auxiliary/rmail/rmail $PKG/usr/sbin/rmail

# Strip binaries:
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs strip -g 2> /dev/null
)

# Add a documentation directory:
mkdir -p $DOCS
for i in ${DOCFILES}; do
    if [ -e ${i} ]; then
        if ! [ -L ${i} ]; then
	    cp -a ${i} ${DOCS}
	else
	    cp -LRp ${i} ${DOCS}
        fi
    fi;
done

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $( find . -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
)
fi

# Add rc.postfix
install -m 0755 -D $CWD/rc.postfix $PKG/etc/rc.d/rc.postfix.new

# Add a slackbuild script:
cat $CWD/$PRGNAME.SlackBuild > $DOCS/$PRGNAME.SlackBuild

# Add slack-desc
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

# Add a doinst.sh, if any
if [ -f $CWD/doinst.sh.gz ]; then
    zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
elif [ -f $CWD/doinst.sh ]; then
    cat $CWD/doinst.sh > $PKG/install/doinst.sh
fi


# Since we gzip the manpages, let's fix the postfix-files to reflect that
# so it won't throw errors during post-install
cd $PKG/usr/libexec/postfix
grep manpage postfix-files | while read line; 
do MANPAGE="$(echo "$line" | cut -d: -f1)" 
  sed -i s%"$MANPAGE"%"$MANPAGE.gz"% postfix-files 
done


# Create .new files
cd $PKG/etc/postfix
for i in $NEWFILES; do
    mv ${i} ${i}.new ;
done

# Create slack-required file:
if [ -x /usr/bin/requiredbuilder ]; then
    requiredbuilder -v -y -s $CWD $PKG
fi

# Create package:
cd $PKG
/sbin/makepkg -l y -c n $CWD/$PRGNAME-$VERSION-$ARCH-${BUILD}${TAG}.txz

# Clean file, if option is set: 
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/$PRGNAME-$VERSION
  rm -rf $PKG
fi