#!/bin/bash
#
# Copyright 2006, 2011 Alan Hicks, Lizella, GA
# 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
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Updates by mario@slackverse.org, 2010-2011

PRGNAM=postfix
VERSION=${VERSION:-2.8.3}
BUILD=${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

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

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

# Build with dovecot sasl by default, cyrus/dovecot are supported
SASL=${SASL:-dovecot}
case "$SASL" in
     dovecot) SASLARGS='-DDEF_SERVER_SASL_TYPE=\"dovecot\"' 
              SASLLIBS="" ;;
       cyrus) SASLARGS='-DUSE_CYRUS_SASL -I/usr/include/sasl'
              SASLLIBS="-L/usr/lib${LIBDIRSUFFIX}/sasl2 -lsasl2" ;;
           *) SASLARGS=''
              SASLLIBS="" ;;
esac

# Build with no database support by default
DATABASE=${DATABASE:-none}
case "$DATABASE" in
       mysql) DBARGS='-DHAS_MYSQL -I/usr/include/mysql'
              DBLIBS="-L/usr/lib${LIBDIRSUFFIX}/mysql -lmysqlclient -lz -lm" ;;
           *) DBARGS=''
              DBLIBS="" ;;
esac

# MySQL compile hack
if [ $DATABASE == "mysql" ] && [ -f /usr/include/mysql/events.h ]; then

cat << EOF

  Postfix will fail to compile with mysql support if a system-wide
  events.h file is not removed (postfix has its own events.h).
  Either disable mysql support or (re)move events.h, eg:

  # mv /usr/include/mysql/events.h /usr/include/mysql/events.h.bak

EOF
  exit
fi

set -e

CFLAGS=${CFLAGS:-$SLKCFLAGS}

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/$PRGNAM-$VERSION/html
manpage_directory=/usr/man
readme_directory=/usr/doc/$PRGNAM-$VERSION/README_FILES
mail_owner=postfix
setgid_group=postdrop

# Bail if user or group isn't valid on your system
if ! grep ^postfix: /etc/passwd 2>&1 > /dev/null; then

cat << EOF

  You must have a postfix user to run this script

  # groupadd -g 200 postfix
  # useradd -u 200 -d /dev/null -s /bin/false -g postfix postfix

EOF

  exit
elif ! grep ^postdrop: /etc/group 2>&1 > /dev/null; then

cat << EOF

  You must have a postdrop group to run this script

  # groupadd -g 201 postdrop

EOF

  exit
fi

rm -fr $PKG $TMP/$PRGNAM-$VERSION
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION

# TLS, and SASL support
# Postfix unfortunately does not use a handy ./configure script so you
# must generate the makefiles using (what else?) "make makefiles". The
# following includes support for TLS, SASL and MYSQL if you setup your
# variables properly (see the README file). It should
# automatically find PCRE and DB3 support. The docs have information
# for adding additional support such as LDAP.

make makefiles \
  CCARGS="-DUSE_SASL_AUTH -DUSE_TLS $SASLARGS $DBARGS" \
  AUXLIBS="-lssl -lcrypto $SASLLIBS $DBLIBS"

make

make non-interactive-package \
  install_root=$PKG \
  tempdir=$TMP/$PRGNAM-temp \
  config_directory=$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

mkdir -p $PKG/install $PKG/etc/rc.d $PKG/usr/doc/$PRGNAM-$VERSION

cp -r AAAREADME COMPATIBILITY COPYRIGHT HISTORY IPv6-ChangeLog LICENSE \
  PORTING RELEASE_NOTES TLS_ACKNOWLEDGEMENTS TLS_CHANGES TLS_LICENSE \
  US_PATENT_6321267 implementation-notes examples \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/postfix.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/postfix.SlackBuild

install -m 0755 $CWD/rc.postfix  $PKG/etc/rc.d/rc.postfix.new
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

find $PKG -type f | \
 ( while read LINE; do
  if file $LINE | egrep "ELF.*(executable|shared object).*not stripped" \
    &> /dev/null; then
  strip $LINE
  fi
 done )

gzip -9 $PKG/usr/man/*/*

cd $PKG/etc/postfix
# 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
for i in \
  access aliases canonical generic header_checks main.cf main.cf.default \
  makedefs.out master.cf relocated transport virtual ;
do \
  mv $i $i.new ;
done

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