#!/bin/bash
#
#  grace.SlackBuild 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 any later version.
#
#  grace.SlackBuild 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, write to the Free Software Foundation, Inc., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#
# SlackBuild for grace
# ftp://plasma-gate.weizmann.ac.il/pub/grace/src/grace5/
#
# Author: Rudson R. Alves
#

# Look for slackbuildrc
if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
elif [ -f /etc/slackbuildrc ]; then
  source /etc/slackbuildrc
fi

# Set variables
CWD="$(pwd)"
SRC_NAME="grace"
PKG_NAME="grace"
ARCH=${ARCH:=i468}
SRC_VERSION=${VERSION:=5.1.20}
PKG_VERSION="$(echo "$SRC_VERSION" | tr '[[:blank:]-]' '_')"
BUILD=${BUILD:=1rra}
SRC_DIR=${SRC_DIR:=$CWD}/$PKG_NAME
TMP=${TMP:=/tmp}
PKG=${PKG:=$TMP/package-$PKG_NAME}
REPOS=${REPOS:=$TMP}
PREFIX=${PREFIX:=/usr/local}
PKG_SRC="$TMP/$SRC_NAME-$SRC_VERSION"
CONF_OPTIONS=${CONF_OPTIONS:=""}
NUMJOBS=${NUMJOBS:="-j4"}

# Set system libraries' path and optmization flags based on $ARCH
LIBDIR="$PREFIX/lib"

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mcpu=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
  LIBDIR="$PREFIX/lib64"
fi

# Set error codes (used by createpkg)
ERROR_WGET=31;      ERROR_MAKE=32;      ERROR_INSTALL=33
ERROR_MD5=34;       ERROR_CONF=35;      ERROR_HELP=36
ERROR_TAR=37;       ERROR_MKPKG=38;     ERROR_GPG=39
ERROR_PATCH=40;     ERROR_VCS=41;       ERROR_MKDIR=42

# Clean up any leftovers of previous builds
rm -rf "$PKG_SRC" 2> /dev/null
rm -rf "$PKG" 2> /dev/null

# Create directories if necessary
mkdir -p "$SRC_DIR" || exit $ERROR_MKDIR
mkdir -p "$PKG" || exit $ERROR_MKDIR
mkdir -p "$REPOS" || exit $ERROR_MKDIR

# Dowload source if necessary
SRC="$SRC_NAME-$SRC_VERSION.tar.gz"
URL="ftp://plasma-gate.weizmann.ac.il/pub/grace/src/grace5/$SRC"

if [ ! -s "$SRC_DIR/$SRC" ] || ! gunzip -t "$SRC_DIR/$SRC" 2> /dev/null; then
  wget "$URL" -O "$SRC_DIR/$SRC" || exit $ERROR_WGET
fi

# Untar
cd "$TMP"
tar --no-same-owner --no-same-permissions -xvf "$SRC_DIR/$SRC" || exit $ERROR_TAR
cd "$PKG_SRC"

# Configure
CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS" \
  ./configure \
  --prefix="$PREFIX" --libdir="$LIBDIR" "$CONF_OPTIONS" || exit $ERROR_CONF

# Compile
make $NUMJOBS || exit $ERROR_MAKE

# Install
make install DESTDIR="$PKG" || exit $ERROR_INSTALL

# Links
mkdir -p $PKG/$PREFIX/bin
cd $PKG/$PREFIX/bin
for i in convcal fdf2fit grconvert xmgrace; do
  ln -s ../$PKG_NAME/bin/$i $i
done
cd -

# Manual pages
mkdir -p $PKG/usr/man/man1
cp $PKG_SRC/doc/*.1 $PKG/usr/man/man1/
gzip $PKG/usr/man/man1/*

# Make grace.desktop
mkdir -p $PKG/usr/share/applications
cat << EOF_KDE > $PKG/usr/share/applications/Grace.desktop
[Desktop Entry]
Encoding=UTF-8
Categories=Graphics;
Exec=xmgrace
Icon=$PREFIX/$PKG_NAME/doc/mygraph.png
StartupNotify=true
Terminal=false
Type=Application
Name=Grace
GenericName=Grace
Comment=
EOF_KDE

# Strip binaries
( cd "$PKG"
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
)

# Install documentation
DOCS="LICENSE README CHANGES DEVELOPERS ChangeLog COPYRIGHT"
mkdir -p "$PKG/usr/doc/$PKG_NAME-$PKG_VERSION" || exit $ERROR_MKDIR
cp -a $DOCS "$PKG/usr/doc/$PKG_NAME-$PKG_VERSION"

# Add package description (slack-desc)
mkdir -p "$PKG/install" || exit $ERROR_MKDIR
cat << EODESC > "$PKG/install/slack-desc"
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

     |-----handy-ruler-------------------------------------------------------|
grace: Package Grace $VERSION, by Slack.Sarava
grace:
grace: Grace is a WYSIWYG 2D plotting tool for the X Window System and M*tif.
grace: Grace runs on practically any version of Unix-like OS. As well, it has
grace: been successfully ported to VMS, OS/2, and Win9*/NT/2000/XP (some minor
grace: functionality may be missing, though).
grace:
grace: Grace is a descendant of ACE/gr, also known as Xmgr.
grace:
grace:
grace:
EODESC

# Build the package
cd "$PKG"
makepkg -l y -c n "$REPOS/$PKG_NAME-$PKG_VERSION-$ARCH-$BUILD.tgz" || exit $ERROR_MKPKG

# Delete source and build directories if requested
if [ "$CLEANUP" == "yes" ]; then
  rm -rf "$PKG_SRC" "$PKG"
fi