#!/bin/bash

## src2pkg-helpers-sources.build
## Gilbert Ashley <amigo@ibiblio.org>

## This script assembles the sources for the various
## libraries and binaries needed by src2pkg into one
## src2pkg-helpers-x.x.tar.bz2 archive.

## The combined archive contains the sources for
## libsentry, tar-1.13 and coreutils and unionfs-fuse
## Some extraneous material is removed from the original
## archives by this script, to save space in the archive.

# Everything is done locally for this build, as it is really
# only of use to me for preparing the archive which gets
# included in the src2pkg package.

SRC_PKG_HELPERS_VERSION=0.9
TAR_VERSION=1.13
LIBSENTRY_VERSION=0.6.8
COREUTILS_VERSION=5.2.1
UNIONFS_FUSE_VERSION=0.23

CWD=$(pwd)

# remove stale working directory if present
[[ -d src2pkg-helpers-$SRC_PKG_HELPERS_VERSION ]] && echo "Removing existing build directory" && rm -rf src2pkg-helpers-$SRC_PKG_HELPERS_VERSION
# create a fresh directory to work in
mkdir -p src2pkg-helpers-$SRC_PKG_HELPERS_VERSION
# remove stale archive if present
[[ -f src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2 ]] && echo "Removing existing archive" && rm -rf src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2
[[ -f ../src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2 ]] && echo "Removing existing archive" && rm -rf ../src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2

cd src2pkg-helpers-$SRC_PKG_HELPERS_VERSION ;
echo "Unpacking coreutils"
tar xjf $CWD/coreutils-$COREUTILS_VERSION.tar.bz2

echo "Unpacking libsentry"
tar xjf $CWD/libsentry-$LIBSENTRY_VERSION.tar.bz2
echo "Unpacking tar-1.13"
tar xjf $CWD/tar-$TAR_VERSION.tar.bz2

echo "Unpacking unionfs-fuse"
tar xjf $CWD/unionfs-fuse-$UNIONFS_FUSE_VERSION.tar.bz2

# remove a bunch of extra files we don't need from coreutils
echo "Removing 20MB of cruft files from coreutils"
( cd coreutils-$COREUTILS_VERSION ; rm -rf doc man old po tests )
# this patch only patches the toplevel config files so that the build
# doesn't try to build the directories moved above.
echo "Patching coreutils sources"
patch -p0 < $CWD/coreutils-mini-source.diff
# the configure script must be regenerated after the above patch
(
echo "Reconfiguring coreutils"
cd coreutils-$COREUTILS_VERSION
rm -f configure
#autoreconf -if
autoconf
rm -rf autom4te.cache
)
# note that when the src2pkg-helpers archive gets built,
# another patch is applied which disables compiling
# most the individual binaries in the coreutils sources
# That is kept in a separate pacth because the list
# of unused programs could change in the future
cd $CWD ;
#  copy all the patches except the coreutils-mini-source.diff used above
cp *.diff src2pkg-helpers-$SRC_PKG_HELPERS_VERSION
# remove this one
rm -f src2pkg-helpers-$SRC_PKG_HELPERS_VERSION/coreutils-mini-source.diff

cat README > src2pkg-helpers-$SRC_PKG_HELPERS_VERSION/README
cat ChangeLog > src2pkg-helpers-$SRC_PKG_HELPERS_VERSION/ChangeLog
# create our final source archive
echo "Creating tar archive of src2pkg-helpers-$SRC_PKG_HELPERS_VERSION"
tar -cf src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar src2pkg-helpers-$SRC_PKG_HELPERS_VERSION
echo "Creating src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2"
bzip2 src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar

# remove temporary working directory if present
[[ -d src2pkg-helpers-$SRC_PKG_HELPERS_VERSION ]] && echo "Removing existing build directory" && rm -rf src2pkg-helpers-$SRC_PKG_HELPERS_VERSION

# move the finished archive up one level
mv src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2 ../src2pkg-helpers-$SRC_PKG_HELPERS_VERSION.tar.bz2
echo "Done"