#!/bin/bash

# Slackware build script for textadept
# Copyright 2023 Yth | Pont-en-Royans, France | yth@ythogtha.org
# Ryan P.C. McQuen | Everett, WA | ryanpcmcquen@member.fsf.org
# Copyright 2018, 2019 Brenton Earl <brent@exitstatusone.com>

# 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 2 of the License, or
# (at your option) any later version, with the following exception:
# the text of the GPL license may be omitted.

# 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. Compiling,
# interpreting, executing or merely reading the text of the program
# may result in lapses of consciousness and/or very being, up to and
# including the end of all existence and the Universe as we know it.
# See the GNU General Public License for more details.

# You may have received a copy of the GNU General Public License
# along with this program (most likely, a file named COPYING). If
# not, see <https://www.gnu.org/licenses/>.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=textadept
VERSION=${VERSION:-12.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

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

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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

DOCS="CHANGELOG.md FAQ.md LICENSE MEDIA.md README.md TECHNOLOGY.md THANKS.md"

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$PRGNAM\_$VERSION
tar xvf $CWD/$PRGNAM-$PRGNAM\_$VERSION.tar.gz
cd $PRGNAM-$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 {} \;

mkdir -p build/_deps
ln -s $CWD/*t20200923.tar.gz build/_deps/t20200923.tar.gz
ln -s $CWD/*libiconv-1.17.tar.gz build/_deps/libiconv-1.17.tar.gz
ln -s $CWD/*lexilla510.tgz build/_deps/lexilla510.tgz
ln -s $CWD/*1_8_0.zip build/_deps/v1_8_0.zip
ln -s $CWD/*lpeg-1.1.0.tar.gz build/_deps/lpeg-1.1.0.tar.gz
ln -s $CWD/*lua-5.4.6.tar.gz build/_deps/lua-5.4.6.tar.gz
ln -s $CWD/*PDCurses-3.9.zip build/_deps/PDCurses-3.9.zip
ln -s $CWD/*1.0.zip build/_deps/1.0.zip
ln -s $CWD/*scinterm_5.0.zip build/_deps/scinterm_5.0.zip
ln -s $CWD/*scintilla550.tgz build/_deps/scintilla550.tgz
ln -s $CWD/*scintillua_6.3.zip build/_deps/scintillua_6.3.zip
ln -s $CWD/*3.4.0.zip build/_deps/v3.4.0.zip
ln -s $CWD/*libtermkey-0.22.tar.gz build/_deps/libtermkey-0.22.tar.gz
cmake -S . -B build -D CMAKE_BUILD_TYPE=Release \
	  -D CMAKE_INSTALL_PREFIX=$PKG/usr \
	  -D CMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
	  -D CMAKE_CXX_FLAGS:STRING="$SLKCFLAGS"
cmake --build build -j
cmake --install build

# Generate HTML documentation if markdown-it is available.
if [ -e /usr/bin/markdown-it ]; then
  pushd build/_deps/lua-src; make; popd
  LUA=$(pwd)/build/_deps/lua-src/src/lua
  # Copied from textadept's github workflow, and adapted to our environment
  FILL_LAYOUT=$(pwd)/scripts/fill_layout.lua
  sed -i 's/markdown -f toc -T/markdown-it/;s/read\(..\)a/read\1*a/;s/:match.*ul.*//' $FILL_LAYOUT

  pushd $PKG/usr/share/$PRGNAM/docs
  for file in $( ls *.md ); do
	cat _layouts/default.html | $LUA $FILL_LAYOUT $file > $( basename -s .md $file ).html
  done
  rm _layouts/default.html
  rmdir _layouts
  popd
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

# More compact binary names
ln -sf ${PRGNAM} $PKG/usr/bin/tad
ln -sf ${PRGNAM}-gtk $PKG/usr/bin/tadg
ln -sf ${PRGNAM}-curses $PKG/usr/bin/tadc

# Better menu entry : differentiates between Qt and Gtk version
sed -i 's/Name=Textadept/Name=Textadept (Qt)/' $PKG/usr/share/$PRGNAM/"${PRGNAM}".desktop
sed -i 's/Name=Textadept/Name=Textadept (Gtk)/' $PKG/usr/share/$PRGNAM/"${PRGNAM}"-gtk.desktop

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/
cp -a README* LICENSE* $PKG/usr/doc/$PRGNAM-$VERSION/
# Doc in /usr/share/$PRGNAM/docs is used for help inside program
ln -sf /usr/share/$PRGNAM/docs $PKG/usr/doc/$PRGNAM-$VERSION/
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

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