#!/bin/sh
#
# openjdk.SlackBuild
# 2024-05-15
#

PRGNAM=openjdk
VERSION=21.0.2

# automatically determine the architecture
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    x86_64) ARCH=x86_64 ;;
       *) exit 1
  esac
fi

BUILD=${BUILD:-1}
TAG=${TAG:-scr}
PKGTYPE=${PKGTYPE:-txz}

HOMEPAGE="https://openjdk.org/"
SOURCE="${PRGNAM}-${VERSION}_linux-x64_bin.tar.gz"
DOWNLOAD="https://download.java.net/java/GA/jdk21.0.2/f2283984656d49d69e91c558476027ac/13/GPL/${SOURCE}"
MD5SUM="052eb488a7d2d18baf7d0f0ed89dc7de"

REQUIRES=""

MAINTAINER="Gernot Walzl"
EMAIL="gernot.walzl@gmx.at"

DESC="OpenJDK

OpenJDK is an open-source implementation of the Java platform.

${HOMEPAGE}"

DOCS="$(pwd)/$0"

# EOF info


# set initial variables
CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# exit on error
set -e

# download the source if needed
if [ ! -f $CWD/$SOURCE ]; then
  wget -O $CWD/$SOURCE $DOWNLOAD || exit 1
fi

# check for correct source file
if [ "$(md5sum $CWD/$SOURCE | cut -f 1 -d ' ')" != "$MD5SUM" ]; then
  exit 1
fi

# extract the application source
cd $TMP || exit 1
tar xvf $CWD/$SOURCE || exit 1

# change to the application source directory
cd jdk-$VERSION || exit 1

# fix permissions
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# install everything into the package directory
cd $TMP
rm -rf $PKG
mkdir -p $PKG/install
mkdir -p $PKG/usr/lib64
mv jdk-$VERSION $PKG/usr/lib64/java
cd $PKG/usr/lib64/java || exit 1

mkdir -p $PKG/etc/profile.d
cat > $PKG/etc/profile.d/jdk.sh <<EOF
#!/bin/sh
export JAVA_HOME=/usr/lib64/java
export PATH="\${PATH}:\${JAVA_HOME}/bin"
export _JAVA_OPTIONS='-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true'
EOF
chmod +x $PKG/etc/profile.d/jdk.sh

# add documentation
if [ "$DOCS" != "" ]; then
  mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
  cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
  find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
fi

# add some description to the package
if [ "$DESC" != "" ]; then
  echo "$DESC" | sed 's/^/'$PRGNAM': /g' > $PKG/install/slack-desc
fi

# append dependency information to the package
if [ "$REQUIRES" != "" ]; then
  for REQ in $REQUIRES; do
    echo "$REQ" >> $PKG/install/slack-required
  done
fi

# build the package
cd $PKG
PKGVERSION=$(echo $VERSION | sed 's/-/./g')
makepkg -l y -c n \
  $OUTPUT/$PRGNAM-$PKGVERSION-$ARCH-$BUILD$TAG.$PKGTYPE \
  || exit 1

# make everything clean
cd $CWD
rm -rf $PKG