#!/bin/sh

# This script builds and packages Tukaani pkgtools. There should be no
# special build time dependencies e.g. this does not use the system's
# makepkg command to build the package file.
#
# Executing this script requires root priviledges to set correct
# ownerships. This script does not modify any files on your system.


###################
# Initializations #
###################

# Very basic checks and settings:
if [ "$(id -u)" != "0" ]; then
  echo "You need to be root to build the pkgtools package."
  exit 1
fi
set -e
umask 0022

# Versions:
VERSION=tukaani_1.2.4
DIALOG=1.0-20060221
BUILD=1

# Architechture and appropriate configure triplet:
[ -z "$ARCH" ] && ARCH=$(uname -m)
case "$ARCH" in (i?86) ARCH=i486 ;; esac
CONFIGURE_TRIPLET=$ARCH-slackware-linux

# Installation prefixes:
PREFIX=/usr
BINDIR=/bin
DATADIR=/usr/share  # FIXME: pkgtools is hardcoded to use /usr/share/pkgtools.
MANDIR=/usr/man
DOCDIR=/usr/doc
SYSCONFDIR=/etc  # FIXME: pkgtools is hardcoded to usr /etc/pkgtools.

# Source location (current directory) and temporary directory:
CWD=$(pwd)
PKG=$CWD/tmp/package-pkgtools
TMP=$CWD/tmp
rm -rf "$TMP" "$PKG"
mkdir -p "$TMP" "$PKG"

# CFLAGS:
case "$ARCH" in
  i386)         CFLAGS="-O2 -march=i386 -mtune=i686 -fomit-frame-pointer" ;;
  i486)         CFLAGS="-O2 -march=i486 -mtune=i686 -fomit-frame-pointer" ;;
  s390)         CFLAGS="-O2" ;;
  powerpc)      CFLAGS="-O2" ;;
  x86_64)       CFLAGS="-O2 -fPIC" ;;
  *)            echo "ERROR: Unknown ARCH: $ARCH"; exit 1 ;;
esac
export CFLAGS
            

#############
# Framework #
#############
cd "$PKG"
gzip -dc "$CWD/_pkgtools.tar.gz" | tar xvpf -


############
# tar-1.13 #
############
cd "$TMP"
gzip -dc "$CWD/tar-1.13.tar.gz" | tar xvpf -
cd tar-1.13
zcat "$CWD/tar-1.13.compression-flags.diff.gz" | patch -p1 --verbose
zcat "$CWD/tar-1.13.no-overwrite-dir-flag.diff.gz" | patch -p1 --verbose
chown -R 0:0 .
./configure \
  --prefix=$PREFIX \
  --bindir=$BINDIR \
  --disable-nls \
  --with-ncursesw \
  --enable-widec \
  $CONFIGURE_TRIPLET
make
mkdir -p $PKG$BINDIR
cat src/tar > $PKG$BINDIR/tar-1.13-pkgtools
strip $PKG$BINDIR/tar-1.13-pkgtools
chmod 0755 $PKG$BINDIR/tar-1.13-pkgtools

# Take only a few documentation files, mostly for
# copyright and credit information. Everyone should
# use newer tar version for everything else than packages.
mkdir -p $PKG$DOCDIR/tar-1.13
cp -a AUTHORS ChangeLog COPYING THANKS $PKG$DOCDIR/tar-1.13


##########
# dialog #
##########
cd "$TMP"
tar xzvf $CWD/dialog-$DIALOG.tar.gz
cd dialog-$DIALOG
find . -perm 444 -exec chmod 644 {} \;
chown -R 0:0 .
# Fix --help-button return the current item name also when --item-help is in
# use. Without this patch --help-button is quite useless.
zcat "$CWD/dialog.checklist.help.diff.gz" | patch -p0
./configure \
  --prefix=$PREFIX \
  --bindir=$BINDIR \
  --mandir=$MANDIR \
  --enable-nls \
  $CONFIGURE_TRIPLET
make
make DESTDIR=$PKG install
strip $PKG$BINDIR/dialog
gzip -9 $PKG$MANDIR/man1/dialog.1
mkdir -p $PKG$SYSCONFDIR
cat samples/slackware.rc > $PKG$SYSCONFDIR/dialogrc
mkdir -p $PKG$DOCDIR/dialog-$DIALOG
cp -a CHANGES COPYING README VERSION dialog.lsm $PKG$DOCDIR/dialog-$DIALOG


######################
# Create the package #
######################
cd "$PKG"

# Create the package using our brand new but old tar-1.13:
.$BINDIR/tar-1.13-pkgtools cvf - --owner=root --group=root . \
  | gzip -9 \
  > "$TMP/pkgtools-$VERSION-$ARCH-$BUILD.tgz"

echo
echo Package created: "$TMP/pkgtools-$VERSION-$ARCH-$BUILD.tgz"
echo