#!/bin/bash
# src2pkg.setup
# Copyright 2008 Gilbert Ashley <amigo@ibiblio.org>
# This script builds the binaries and libraries needed by src2pkg to function properly. The src2pkg package
# contains no binaries when first installed, so this script  must be run to setup src2pkg for use on your system.
# This method is used to ensure that the binaries and libraries work properly on your system, no matter
# which architecture and OS version you are running. It also provides a check to be sure that your system
# has the basic tools needed to compile software. Otherwise src2pkg would not work anyway.

SRC2PKG_SRC_DIR=$(pwd)

# build in /tmp for sanity (if not peace of mind...)
TEMP_DIR=/tmp/src2pkg.setup

LIBSENTRY_VERSION="0.6.7.3"
TAR_VERSION=1.13
BB_VERSION=1.2.2
FAKEROOT_VERSION=1.5.10

# ANSI COLORS
CRE=""
NORMAL=""
# RED: Failure or error message
RED=""
# GREEN: Success message
GREEN=""
# YELLOW: Warnings
YELLOW=""
# BLUE: Summary messages
BLUE=""
# CYAN: Current Process
CYAN=""

echo $CYAN"NOTICE - "$NORMAL"Setting up src2pkg for the first time."
echo "         When first installed the src2pkg package contains"
echo "         no binaries or libraries which it needs to function."
echo "         We build them in-place to insure compatibility with"
echo "         your system, no matter which architecture or OS you"
echo "         are using. This also provides a check to be sure that"
echo "         you have the basic programs installed for compiling."
echo ""

if ! [[ -d $TEMP_DIR ]] ; then
 mkdir -p $TEMP_DIR
else
 echo -n $BLUE"Removing old sources - "$NORMAL
 ( cd $TEMP_DIR && rm -rf libsentry-$LIBSENTRY_VERSION )
 ( cd $TEMP_DIR && rm -rf tar-$TAR_VERSION )
 ( cd $TEMP_DIR && rm -rf busybox-$BB_VERSION )
 echo $GREEN"Done!"$NORMAL
fi

echo "   src2pkg uses statically-linked binaries for some operations."
echo "   Most are supplied by the busybox program, but we also install a"
echo "   separate static copy of the tar program which is used throughout."
echo "   We also compile libsentry -the essential library used by src2pkg,"
echo "   and the the fakeroot library so normal users can build packages."
echo ""

cd $TEMP_DIR ;

echo -n $BLUE"Unpacking busybox - "$NORMAL
tar xjf $SRC2PKG_SRC_DIR/busybox-$BB_VERSION.tar.bz2
rm -f busybox-$BB_VERSION/.config
cp -a $SRC2PKG_SRC_DIR/busybox-static.config busybox-$BB_VERSION/.config
chown -R root:root busybox-$BB_VERSION
echo  $GREEN"Done!"$NORMAL

cd busybox-$BB_VERSION ;
echo -n $BLUE"Configuring busybox - "$NORMAL
make oldconfig 1> /dev/null
echo $GREEN"Done!"$NORMAL

echo -n $BLUE"Compiling busybox - "$NORMAL
if [[ $ARCH = "x86_64" ]] ; then
 CFLAGS='-O2 -fPIC' make &> /dev/null
elif [[ $ARCH = "i486" ]] ; then
 CFLAGS='-O2' make &> /dev/null
else
  make &> /dev/null
fi
if [[ $? -eq 0 ]] ; then
 echo $GREEN"Done!"$NORMAL
else
 echo ""
 echo $RED"FAILED! "$NORMAL"Busybox failed to compile... exiting."
 exit 1
fi

echo -n $BLUE"Creating busybox links - "$NORMAL
make install &> /dev/null
echo $GREEN"Done!"$NORMAL

# build and use our own static copy of tar for consistent results and safety
#! [[ -d $TEMP_DIR/tar ]] && mkdir -p $TEMP_DIR/tar
cd $TEMP_DIR ;

echo -n $BLUE"Unpacking tar - "$NORMAL
tar xjf $SRC2PKG_SRC_DIR/tar-$TAR_VERSION.tar.bz2
chown -R root:root tar-$TAR_VERSION
echo $GREEN"Done!"$NORMAL

cd tar-$TAR_VERSION ;
patch -p1 < $SRC2PKG_SRC_DIR/tar-$TAR_VERSION-bzip2.diff &> /dev/null

echo -n $BLUE"Configuring tar - "$NORMAL
if [[ $ARCH = "x86_64" ]] ; then
 CFLAGS="-O2 -fPIC -static -s" ./configure --disable-nls --with-ncursesw --enable-widec &> /dev/null
elif [[ $ARCH = "i486" ]] ; then
 CFLAGS='-O2' ./configure --disable-nls --with-ncursesw --enable-widec &> /dev/null
else
  ./configure --disable-nls --with-ncursesw --enable-widec &> /dev/null
fi

if [[ $? -eq 0 ]] ; then
 echo $GREEN"Done!"$NORMAL
else
 echo ""
 echo $RED"FAILED! "$NORMAL"Tar failed to configure... exiting."
 exit 1
fi

echo -n $BLUE"Compiling tar - "$NORMAL
if [[ $ARCH = "x86_64" ]] ; then
 CFLAGS='-O2 -fPIC' LDFLAGS="-static -s" make &> /dev/null
elif [[ $ARCH = "i486" ]] ; then
 CFLAGS='-O2' LDFLAGS="-static -s" make &> /dev/null
else
  LDFLAGS="-static -s" make &> /dev/null
fi

if [[ $? -eq 0 ]] ; then
 echo $GREEN"Done!"$NORMAL
else
 echo ""
 echo $RED"FAILED! "$NORMAL"Tar failed to compile... exiting."
 exit 1
fi

# build the libsentry library
cd $TEMP_DIR ;
echo -n $BLUE"Unpacking libsentry sources - "$NORMAL
tar xjf $SRC2PKG_SRC_DIR/libsentry-$LIBSENTRY_VERSION.tar.bz2
echo $GREEN"Done!"$NORMAL
chown -R root:root libsentry-$LIBSENTRY_VERSION
echo -n $BLUE"Compiling libsentry - "$NORMAL
cd libsentry-$LIBSENTRY_VERSION ;
if [[ $ARCH = "x86_64" ]] ; then
 CFLAGS='-O2 -fPIC' make 1> /dev/null 2> /dev/null
elif [[ $ARCH = "i486" ]] ; then
 CFLAGS='-O2' make 1> /dev/null 2> /dev/null
else
  make 1> /dev/null 2> /dev/null
fi
if [[ -e $TEMP_DIR/libsentry-$LIBSENTRY_VERSION/libsentry.so ]] ; then
 echo $GREEN"Done!"
else
 echo ""
 echo $RED"FAILED! "$NORMAL"Building libsentry failed... exiting."
 exit 1
fi

# libfakeroot
cd $TEMP_DIR ;
echo -n $BLUE"Unpacking fakeroot sources - "$NORMAL
tar xjf $SRC2PKG_SRC_DIR/fakeroot-$FAKEROOT_VERSION.tar.bz2
echo $GREEN"Done!"$NORMAL
chown -R root:root fakeroot-$FAKEROOT_VERSION
echo -n $BLUE"Compiling fakeroot - "$NORMAL
cd fakeroot-$FAKEROOT_VERSION ;
mkdir install_local
if [[ $ARCH = "x86_64" ]] ; then
 CFLAGS='-O2 -fPIC' make 1> /dev/null 2> /dev/null
elif [[ $ARCH = "i486" ]] ; then
 CFLAGS='-O2' make 1> /dev/null 2> /dev/null
fi

export CFLAGS
./configure --prefix=/usr/libexec/src2pkg &> /dev/null
make &> /dev/null

if [[ -e $TEMP_DIR/fakeroot-$FAKEROOT_VERSION/libfakeroot.o ]] ; then
 echo $GREEN"Done!"
 echo $BLUE"Installing fakeroot - "$NORMAL
 rm -f /usr/libexec/src2pkg/lib/*
 rm -f /usr/libexec/src2pkg/bin/*
 make install &> /dev/null
 rm -f /usr/libexec/src2pkg/bin/fakeroot
 rm -rf /usr/libexec/src2pkg/share
 # make sure these didn't get changed
 chown root:root /usr/libexec/src2pkg
 chmod 755 /usr/libexec/src2pkg
 # change the perms for all the installed libs
 chown -R root:root /usr/libexec/src2pkg/bin
 chmod -R 755 /usr/libexec/src2pkg/bin
 # change the perms for all the installed libs
 chown -R root:root /usr/libexec/src2pkg/lib
 chmod -R 755 /usr/libexec/src2pkg/lib
 chmod 644 /usr/libexec/src2pkg/lib/libfakeroot.a
else
 echo ""
 echo $RED"FAILED! "$NORMAL"Building fakeroot failed... exiting."
 exit 1
fi

# install the stuff
echo -n $BLUE"Installing libs and programs - "$NORMAL
# remove any stale copies
rm -f /usr/libexec/src2pkg/lib/libsentry.so
cp -a $TEMP_DIR/libsentry-$LIBSENTRY_VERSION/libsentry.so /usr/libexec/src2pkg/lib
chown root:root /usr/libexec/src2pkg/lib/libsentry.so
chmod 755 /usr/libexec/src2pkg/lib/libsentry.so

# Install static tar
# remove stale copies
rm -f /usr/libexec/src2pkg/static/tar-1.13
cp -a $TEMP_DIR/tar-$TAR_VERSION/src/tar /usr/libexec/src2pkg/static/tar-1.13
chown root:root /usr/libexec/src2pkg/static/tar-1.13
chmod 755 /usr/libexec/src2pkg/static/tar-1.13
# busybox
cp -a $TEMP_DIR/busybox-$BB_VERSION/_install/bin/busybox /usr/libexec/src2pkg/static
# fix perms
chown root:root $PKG_DIR/usr/libexec/src2pkg/static/busybox
chmod 755 $PKG_DIR/usr/libexec/src2pkg/static/busybox

echo $GREEN"DONE! "$NORMAL"src2pkg is now ready to use."

cd $TEMP_DIR ;
rm -rf busybox-$BB_VERSION
rm -rf libsentry-$LIBSENTRY_VERSION
rm -rf tar-$TAR_VERSION
( cd /tmp && rm -rf $TEMP_DIR )