#!/bin/sh
#
# Slackware build script for pudb

# Copyright 2018 David Woodfall <dave@dawoodfall.net>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''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 AUTHOR 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.

PRGNAM=pudb
VERSION=${VERSION:-2018.1}
URWIDVER=2.0.1
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
	case "$( uname -m )" in
		i?86) ARCH=i586 ;;
		arm*) ARCH=arm ;;
			*) ARCH=$( uname -m ) ;;
	esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
	SLKCFLAGS="-O2 -march=i586 -mtune=i686"
	LIBDIRSUFFIX=""
elif [ "$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

if [ "$NO_PYTHON2" = "yes" ] && [ "$NO_PYTHON3" = "yes" ]; then
	printf "%s\n" "You appear to not want to install anything."
	exit 1
fi

# see if we have python3 installed
which python3 >/dev/null 2>&1 && PY3=1

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP

# install custom urwid package
if [ "$NO_PYTHON2" != "yes" ]; then
	rm -rf urwid-$URWIDVER
	tar xfv $CWD/urwid-$URWIDVER.tar.gz
	cd urwid-$URWIDVER

	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 {} \;

	# change the module name so our urwid doesn't call the stock version
	sed -i "s%'name':\"urwid\"%'name':\"py2_urwid\"%" setup.py
	sed -i "23 a import py2_urwid\n\
import sys\n\
sys.modules['urwid'] = py2_urwid" urwid/__init__.py

	python setup.py install --root=$PKG

	# rename it so it doesn't collide with the stock version
	mv $PKG/usr/lib$LIBDIRSUFFIX/python2.7/site-packages/urwid \
		$PKG/usr/lib$LIBDIRSUFFIX/python2.7/site-packages/py2_urwid
	cd ..
fi

rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
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 {} \;

# install the python3 version before we wreck the python2 build
if [ -n "$PY3" ] && [ "$NO_PYTHON3" != "yes" ]; then
	python3 setup.py install --root=$PKG
fi

# install the edited python2 version
if [ "$NO_PYTHON2" != "yes" ]; then
	# change all references to urwid to our custom py2_urwid
	for py in \
		settings.py \
		source_view.py \
		debugger.py \
		theme.py \
		__init__.py \
		ui_tools.py \
		var_view.py
	do
		sed -i "s%import urwid%import py2_urwid as urwid%g" pudb/$py
	done

	sed -i "s%urwid>=1.1.1%py2_urwid>=1.1.1%" setup.py

	# done so now install
	python setup.py install --root=$PKG
fi

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

# added more docs, some examples and a test debug script
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/examples
cp -a README.rst LICENSE \
	doc/starting.rst doc/usage.rst doc/misc.rst doc/shells.rst \
	$PKG/usr/doc/$PRGNAM-$VERSION

cp -a example-* debug_me.py $PKG/usr/doc/$PRGNAM-$VERSION/examples

cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# this might come in handy later for someone
cat $CWD/README > $PKG/usr/doc/$PRGNAM-$VERSION/README.slackware

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}