#!/bin/bash
#  Copyright (C) 2010-2011  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

CWD=$(pwd)

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

V=2.20
ARCH=${ARCH:-i486}
B=1

PKG=${TMP}/package-libcap

rm -rf $PKG
mkdir -p $PKG $OUT

echo "Uncompressing the tarball..."
rm -rf ${TMP}/libcap-${V}
tar xvf ${CWD}/libcap-${V}.tar.lz -C $TMP

cd ${TMP}/libcap-${V}

# Set sane ownerships and 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 {} +

# Change the location of the manpages:
sed -i -e s#'man_prefix=$(prefix)/share'#'man_prefix=$(prefix)'# Make.Rules

# Compiles without debug information:
sed -i 's/-g #-DDEBUG//' Make.Rules

make
make install FAKEROOT=$PKG

# Set properly for the /sbin directory:
for file in ${PKG}/sbin/* ; do
  if [[ ( -f $file && ! -L $file ) ]]; then
    chmod -v 750 $file
  fi
done

# Fix library permissions:
find ${PKG}/lib -type f -name 'libcap.so*' | xargs chmod 755

# Copy contrib scripts:
mkdir -p ${PKG}/usr/bin
cp -a contrib/pcaps4* ${PKG}/usr/bin
find ${PKG}/usr/bin -type f | xargs chmod 755

# Strip binaries & libraries:
( cd $PKG
  find . -type f | xargs file | awk '/ELF/ && /executable/ || /shared object/' | \
   cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . -type f | xargs file | awk '/current ar archive/' | \
   cut -f 1 -d : | xargs strip --strip-debug 2> /dev/null
)

# Compress man-pages:
( cd ${PKG}/usr/man ; gzip -9N man?/*.? )

# Add the documentation:
mkdir -p ${PKG}/usr/doc/libcap-${V}
cp -a \
 License CHANGELOG README doc/capability.notes \
 ${PKG}/usr/doc/libcap-${V}

# Copy the description files:
mkdir -p ${PKG}/description
cp ${CWD}/description/* ${PKG}/description

cd $PKG
makepkg -l ${OUT}/libcap-${V}-${ARCH}-${B}.tlz