#!/bin/sh

# Slackware build script for "llfuse".
# Adapted by kubedzero from https://slackbuilds.org/repository/14.2/python/llfuse/

# Copyright 2015-2016 Andrzej Telszewski, Sabadell
# Copyright 2016 Marcel Saegebarth <marc@mos6581.de>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Set these to tell the script what input/output files to use
PRGNAM=llfuse
VERSION=${VERSION:-1.3.8}
ARCHIVE="python-$PRGNAM-release-$VERSION"
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

# Determine architecture of build system
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Halt on errors and print out each variable's state
set -ex

# NOTE: script checks working directory, execute from within same dir
CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# remove existing build output and recreate build directories
rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf "$PRGNAM-$VERSION" "$ARCHIVE"

# Unzip the repository code, rename it, and move into that directory
unzip "$CWD/$ARCHIVE.zip"
mv "$ARCHIVE" "$PRGNAM-$VERSION"
cd "$PRGNAM-$VERSION"

# Set permissions on files in the unzipped repository
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# Assumes Cython is already installed, build the C files in the repo
python setup.py build_cython

# Run the install using GCC, outputting to the $PKG build output
python setup.py install --root=$PKG

# Python 3 support, rebuild using Python3
if $(python3 -c 'import sys' 2>/dev/null); then
  python3 setup.py build_cython
  python3 setup.py install --root=$PKG
fi

# Consecutive filtering of files and text to confirm the output is present
find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# Copy the documentation files into the $PKG build output
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a examples Changes.rst LICENSE README.rst $PKG/usr/doc/$PRGNAM-$VERSION

## Copy the HTML documentation as well. Needs a certain Python build target,
## otherwise this doesn't succeed. Commented out for compatibility
# mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/html
# cp -a doc/html/*.html doc/html/searchindex.js doc/html/_static \
#       $PKG/usr/doc/$PRGNAM-$VERSION/html

# Copy the build script to the $PKG build output as well
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# Copy the Slackware slack-desc text file to the $PKG build output
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

# Go to the $PKG build output and actually build the compiled TXZ package
cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}