#!/bin/bash

# Slackware build script for Free Pascal

# Written by Andre Barboza <email removed>.
# Modified by the SlackBuilds.org project.
# Now maintained by B. Watson <yalhcru@gmail.com>.

# 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.

# 20210904 bkw:
# - take over maintenance.
# - update for v3.2.2.
# - install the IDE's data files to fpc base dir, not /usr/bin (ugh).
# - include man page for instantfpc/ifpc.
# - TODO: find out why exiting fp (the IDE) leaves the cursor blinking.
#   It's *very* annoying but not a showstopper.

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

PRGNAM=fpc
VERSION=${VERSION:-3.2.2}
BINVER=${BINVER:-3.2.2}
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 [ ! -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}

case "$ARCH" in
  i?86)   ARCH="i386"
          LIBDIRSUFFIX=""
          ;;
  x86_64) ARCH="x86_64"
          LIBDIRSUFFIX="64"
          ;;
  *)      printf "$ARCH is not supported...\n"
          exit 1
          ;;
esac

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$BINVER ${PRGNAM}build-$VERSION
mkdir $PRGNAM-$BINVER ${PRGNAM}build-$VERSION
cd $TMP/$PRGNAM-$BINVER
tar xvf $CWD/$PRGNAM-$BINVER.$ARCH-linux.tar --strip-components=1
cd $TMP/${PRGNAM}build-$VERSION
tar xvf $CWD/${PRGNAM}build-$VERSION.tar.gz

# Unpack binary files. This is the bootstrap compiler; these binaries
# don't get installed as part of the package.
(
  mkdir -p $TMP/$PRGNAM-$BINVER/binary
  cd $TMP/$PRGNAM-$BINVER/binary
  tar xvf $TMP/$PRGNAM-$BINVER/binary.$ARCH-linux.tar

  cd  $TMP/$PRGNAM-$BINVER
  tar xvf $TMP/$PRGNAM-$BINVER/binary/base.$ARCH-linux.tar.gz
  tar xvf $TMP/$PRGNAM-$BINVER/binary/utils.$ARCH-linux.tar.gz

  cd $TMP/$PRGNAM-$BINVER/bin
  if [ "$ARCH" = "x86_64" ]; then
    ln -s ../lib/fpc/$BINVER/ppcx64
  else
    ln -s ../lib/fpc/$BINVER/ppc386
  fi
)

export PATH="$TMP/$PRGNAM-$BINVER/bin":$PATH
echo "=== PATH is $PATH"

cd $TMP/${PRGNAM}build-$VERSION/${PRGNAM}build-$VERSION

# it's => its. It's one of my pet peeves; its occurrence annoys me.
sed -i "s,\\(as\\|control\\) it's,\\1 its," install/man/man?/*.?

# 20210905 bkw: patch taken from Debian with many thanks. Installs the
# IDE's data files somewhere besides /usr/bin, and patches the IDE to
# look for them there.
patch -p1 < $CWD/fix-IDE-data-file-location.patch

# 20210905 bkw: don't let the NOGDB=1 scare you. During the compile
# we get this message:
# Compiling IDE with GDB/MI debugger support, LibGDB is not needed
# ...and it appears that the IDE does indeed have its debugging
# support enabled.
make build NOGDB=1
make -j1 NOGDB=1 PREFIX=$PKG/usr install

# Fix library dir
[ "$LIBDIRSUFFIX" = "64" ] && mv $PKG/usr/lib $PKG/usr/lib${LIBDIRSUFFIX}

cd $PKG/usr/bin
if [ "$ARCH" = "x86_64" ]; then
  ln -s ../lib$LIBDIRSUFFIX/fpc/$VERSION/ppcx64
else
  ln -s ../lib$LIBDIRSUFFIX/fpc/$VERSION/ppc386
fi

# copy docs
mv $PKG/usr/share/doc $PKG/usr/doc
rmdir $PKG/usr/share
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# 20210905 bkw: fancier than the template, but quite a bit faster and less
# resource-intensive.
find $PKG -type f -a -perm /111 | \
  xargs file -m /etc/file/magic/elf | \
  grep -e "executable" -e "shared object" | grep ELF | \
  cut -f 1 -d : | \
  xargs strip --strip-unneeded 2> /dev/null || true

# we include one man page borrowed from Debian and edited for
# grammar and accuracy.
cat $CWD/instantfpc.1 > $PKG/usr/man/man1/instantfpc.1

gzip $PKG/usr/man/man?/*.*

# no idea why Debian renames instantfpc => ifpc, so support both names.
ln -s instantfpc.1.gz $PKG/usr/man/man1/ifpc.1.gz
ln -s instantfpc $PKG/usr/bin/ifpc

# Create compiler config file.
mkdir -p $PKG/etc $PKG/usr/lib$LIBDIRSUFFIX/fpc/$VERSION/ide/text
$PKG/usr/lib$LIBDIRSUFFIX/fpc/$VERSION/samplecfg \
  $PKG/usr/lib$LIBDIRSUFFIX/fpc/$VERSION \
  $PKG/etc

# Clean up the configs by removing our package directory.
sed -i -e "s:$PKG::g" \
  $PKG/etc/fpc.cfg \
  $PKG/etc/fppkg.cfg \
  $PKG/etc/fppkg/default \
 $PKG/usr/lib$LIBDIRSUFFIX/fpc/$VERSION/ide/text/fp.cfg
mv $PKG/etc/fpc.cfg $PKG/etc/fpc.cfg.new

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

cd $PKG
# fix permissions for program docs and demos.
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

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