#!/bin/bash
#  Copyright (C) 2010-2012  Matias A. Fonzo, <selk@dragora.org>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

unpack() {
  echo "Uncompressing the tarball..."
  tar -xvf "$1"
}

set_sane_permissions() {
  chown -R 0:0 .
  find . \
   \( -perm 2777 -o \
      -perm 777  -o \
      -perm 775  -o \
      -perm 711  -o \
      -perm 555  -o \
      -perm 511     \
   \) -exec chmod 755 {} + \
    -o \
   \( -perm 666 -o \
      -perm 664 -o \
      -perm 600 -o \
      -perm 444 -o \
      -perm 440 -o \
      -perm 400    \
   \) -exec chmod 644 {} +
}

strip_bin_and_libs() {
  ( cd "$1"
    find . -type f | xargs file | awk '/ELF/ && /executable/ || /shared object/' | \
     cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true;
  )
}

clean_perl_files() {
  local DIR
  DIR="$1"

  # Remove the temporary directory from the inventory file of Perl:
  perlVersion=$(eval $(perl -V:version); printf "$version")

  ( cd ${DIR}/usr || exit 1;
    find . -type f -name '.packlist' -exec sed -i "s#$DIR##g" '{}' +
    find . -type f -name 'perllocal.pod' -delete
  )
}

CWD=$(pwd)

TMP=${TMP:-/tmp/sources}
OUT=${OUT:-/tmp/packages}

V=4.0-20120123
PKG_VER=20120123
ARCH=${ARCH:-x86_64}
B=1

# Flags for the compiler:
DCFLAGS=${DCFLAGS:=-O2 -mtune=generic}

# Parallel jobs for the compiler:
JOBS=${JOBS:=-j4}

PKG1=${TMP}/package-foomatic-db
PKG2=${TMP}/package-foomatic-filters
PKG3=${TMP}/package-foomatic-db-engine

rm -rf $PKG{1,2,3}
mkdir -p $PKG{1,2,3} $OUT

export CFLAGS="$DCFLAGS" CXXFLAGS="$DCFLAGS"

cd $TMP

#
# Build & install foomatic-db.
#
rm -rf foomatic-db-${PKG_VER}
unpack ${CWD}/sources/foomatic-db-${V}.tar.lz

pushd foomatic-db-${PKG_VER}
  set_sane_permissions

  ./configure \
   --prefix=/usr \
   --libdir=/usr/lib64 \
   --build=${ARCH}-dragora-linux-gnu

  make $JOBS
  make install DESTDIR=$PKG1

  strip_bin_and_libs
  clean_perl_files $PKG1

  # Copy documentation:
  mkdir -p ${PKG1}/usr/doc/foomatic-db-${PKG_VER}
  cp -a \
   COPYING README USAGE \
   ${PKG1}/usr/doc/foomatic-db-${PKG_VER}

  # Copy description files:
  mkdir -p ${PKG1}/description
  cp ${CWD}/descriptions/foomatic-db/* ${PKG1}/description/

  ( cd $PKG1
    makepkg -l ${OUT}/foomatic-db-${PKG_VER}-${ARCH}-${B}.tlz

    # Upgrade the package ?:
    if [[ -n $UP ]]; then
      pkg upgrade -f ${OUT}/foomatic-db-${PKG_VER}-${ARCH}-${B}.tlz
    fi
  )
popd

#
# Build & install foomatic-filters.
#
rm -rf foomatic-filters-devel-${V}
unpack ${CWD}/sources/foomatic-filters-devel-${V}.tar.lz

pushd foomatic-filters-devel-${V}
  set_sane_permissions

  autoreconf -f -i

  ./configure \
   --prefix=/usr \
   --libdir=/usr/lib64 \
   --sysconfdir=/etc \
   --mandir=/usr/man \
   --build=${ARCH}-dragora-linux-gnu

  make $JOBS
  make install DESTDIR=$PKG2

  strip_bin_and_libs
  clean_perl_files $PKG2

  # Compress man page(s):
  gzip -9N ${PKG2}/usr/man/man?/*.?

  # Copy documentation:
  mkdir -p ${PKG2}/usr/doc/foomatic-filters-${PKG_VER}
  cp -a \
   AUTHORS COPYING NEWS README TODO USAGE VERSION* \
   ${PKG2}/usr/doc/foomatic-filters-${PKG_VER}

  # Copy description files:
  mkdir -p ${PKG2}/description
  cp ${CWD}/descriptions/foomatic-filters/* ${PKG2}/description/

  ( cd $PKG2
    makepkg -l ${OUT}/foomatic-filters-${PKG_VER}-${ARCH}-${B}.tlz

    # Upgrade the package ?:
    if [[ -n $UP ]]; then
      pkg upgrade -f ${OUT}/foomatic-filters-${PKG_VER}-${ARCH}-${B}.tlz
    fi
  )
popd

#
# Build & install foomatic-db-engine.
#
rm -rf foomatic-db-engine-devel-${V}
unpack ${CWD}/sources/foomatic-db-engine-devel-${V}.tar.lz

pushd foomatic-db-engine-devel-${V}
  set_sane_permissions

  ./configure \
   --prefix=/usr \
   --libdir=/usr/lib64 \
   --sysconfdir=/etc \
   --mandir=/usr/man \
   --build=${ARCH}-dragora-linux-gnu

  make $JOBS
  make install DESTDIR=$PKG3

  strip_bin_and_libs
  clean_perl_files $PKG3

  # Increments a little the security:
  find ${PKG3}/usr/sbin -type f -exec chmod -v 0750 '{}' +

  # Compress man page(s):
  gzip -9N ${PKG3}/usr/man/man?/*.?

  # Copy documentation:
  mkdir -p ${PKG3}/usr/doc/foomatic-db-engine-${PKG_VER}
  cp -a \
   COPYING ChangeLog README TODO USAGE \
   ${PKG3}/usr/doc/foomatic-db-engine-${PKG_VER}

  # Copy description files:
  mkdir -p ${PKG3}/description
  cp ${CWD}/descriptions/foomatic-db-engine/* ${PKG3}/description/

  ( cd $PKG3
    makepkg -l ${OUT}/foomatic-db-engine-${PKG_VER}-${ARCH}-${B}.tlz

    # Upgrade the package ?:
    if [[ -n $UP ]]; then
      pkg upgrade -f ${OUT}/foomatic-db-engine-${PKG_VER}-${ARCH}-${B}.tlz
    fi
  )
popd